@media (max-width: 480px) {
  html, body { overflow-x: hidden !important; }
}
@media (max-width: 400px) {
  .projects-filter { flex-direction: column !important; gap: 0.4em !important; }
  .filter-btn { width: 100% !important; }
}
@media (max-width: 768px) {
  .form-group input, .form-group textarea, .form-group select {
    font-size: 16px !important;
    min-height: 44px !important;
  }
}
@media (max-width: 768px) {
  .theme-toggle, .nav-resume-btn, .hamburger {
    min-width: 44px !important;
    min-height: 44px !important;
  }
}
@media (max-width: 768px) {
  .main-card, .floating-card-1, .floating-card-2 { display: none !important; }
  .hero-visual { display: none !important; }
}
@media (max-width: 480px) {
  .main-card { display: none !important; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr !important; gap: 0.75rem !important; }
  .stat-item, .stat-card { padding: 0.75rem 0.5rem !important; }
  .stat-number { font-size: 1.2rem !important; }
  .stat-label { font-size: 0.8rem !important; }
}
@media (max-width: 768px) {
  .conference-section { padding: 1rem 0 !important; }
  .conference-card { padding: 1rem !important; }
  .conference-header { flex-direction: column !important; gap: 0.5em !important; }
  .conference-highlights,
  .conference-tech { flex-direction: column !important; gap: 0.5em !important; }
}
@media (max-width: 480px) {
  .conference-title { font-size: 1.1rem !important; }
  .conference-card { padding: 1rem 0.5rem !important; }
}
@media (max-width: 768px) {
  /* About Section */
  .about-image { height: 200px !important; margin-bottom: 1rem !important; }
  .about-badges { justify-content: center !important; }
  .highlight-item { text-align: center !important; flex-direction: column !important; }
  .about-highlights { gap: 0.8rem !important; flex-direction: column !important; }

  /* Skills/Key Proficiencies */
  .skill-category, .proficiency-item { padding: 1rem !important; }
  .skills-grid, .proficiencies-grid { grid-template-columns: 1fr !important; gap: 1rem !important; }
  .skill-bar { height: 8px !important; }
  .skills-list { gap: 0.5rem !important; }
  .skill-item { padding: 0.5rem 0 !important; font-size: 0.9rem !important; }

  /* Projects Section */
  .project-card { padding: 1rem !important; }
  .project-title { font-size: 1rem !important; }
  .project-description { font-size: 0.9rem !important; }
  .project-image { height: 120px !important; }
  .project-highlights { gap: 0.3rem !important; flex-wrap: wrap !important; }

  /* Education Timeline */
  .education-card { padding: 1rem !important; }
  .degree-title, .institution { font-size: 1rem !important; }
  .education-item { gap: 1rem !important; flex-direction: column !important; }

  /* Contact Section */
  .contact-form { padding: 1rem !important; }
  .contact-item, .contact-intro, .contact-details { gap: 0.5rem !important; flex-direction: column !important; }
  .social-grid { gap: 1rem !important; justify-content: center !important; }
  .form-submit { width: 100% !important; }

  /* Certificates Section */
  .certificate-card { padding: 1rem 0.5rem !important; }
  .certificate-icon { width: 40px !important; height: 40px !important; }
  .certificate-title { font-size: 1rem !important; }
  .certificate-skills { flex-wrap: wrap !important; gap: 0.25em !important; }

  /* Footer */
  .footer-content, .footer-main, .footer-links, .footer-bottom { text-align: center !important; }
  .footer-links { grid-template-columns: 1fr !important; gap: 1rem !important; }
  .footer-social { gap: 0.5rem !important; justify-content: center !important; }
}
@media (max-width: 480px) {
  /* Certificates Section - extra small screens */
  .certificate-card { padding: 1rem 0.5rem !important; }
  .certificate-icon { width: 36px !important; height: 36px !important; }
  .certificate-title { font-size: 0.95rem !important; }
  .certificate-skills { gap: 0.18em !important; }

  /* Footer - extra small screens */
  .footer-content, .footer-main, .footer-links, .footer-bottom { text-align: center !important; }
  .footer-links { grid-template-columns: 1fr !important; gap: 1rem !important; }
  .footer-social { gap: 0.5rem !important; }
}
@media (max-width: 768px) {
    /* Stack timeline items on mobile */
    .experience-timeline {
        padding-left: 0 !important;
        margin-left: 0 !important;
    }
    .timeline-item {
        grid-template-columns: 1fr !important;
        gap: 0 !important;
        margin-bottom: 1.2rem !important;
        padding-left: 0 !important;
        background: none !important;
        box-shadow: none !important;
    }
    /* Hide the vertical timeline markers on mobile */
    .timeline-marker,
    .experience-timeline::before,
    .marker-dot,
    .marker-line {
        display: none !important;
    }
    .timeline-content {
        padding: 0 !important;
        width: 100% !important;
    }
    .timeline-card {
        padding: 1rem 0.5rem !important;
        width: 100% !important;
        border-radius: 12px !important;
        min-width: 0 !important;
    }
    .timeline-date {
        position: static !important;
        text-align: left !important;
        margin-bottom: 0.6rem !important;
        padding: 0.4rem 1rem !important;
        background: rgba(135, 206, 235, 0.1) !important;
        border-radius: 6px !important;
        width: fit-content !important;
        font-size: 0.92rem !important;
    }
}
/* Remove all backgrounds and glass effects from navbar/nav-menu in light theme */
[data-theme="light"] .navbar,
[data-theme="light"] .nav-menu,
[data-theme="light"] ul#nav-menu,
[data-theme="light"] .nav-container {
    background: transparent !important;
    box-shadow: none !important;
    border-bottom: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}
  [data-theme="light"] .hero-name .name-part {
    background: none !important;
    color: #23272f !important;
    -webkit-background-clip: initial !important;
    -webkit-text-fill-color: initial !important;
    background-clip: initial !important;
    text-shadow: none !important;
  }
  [data-theme="light"] .hero-name .name-part {
    color: #23272f !important;
    background: none !important;
    -webkit-background-clip: initial !important;
    -webkit-text-fill-color: initial !important;
    background-clip: initial !important;
  }
  [data-theme="light"] .hero-name .name-part {
    color: #23272f !important;
    background: none !important;
    -webkit-background-clip: initial !important;
    -webkit-text-fill-color: initial !important;
    background-clip: initial !important;
  }
  .hero-name {
    text-align: center !important;
    justify-content: center !important;
    align-items: center !important;
    margin: 0 auto !important;
    width: 100% !important;
  }
@media (min-width: 1025px) {
  [data-theme="light"] .hero-name {
    gap: 0.6em !important;
  }
  .hero-name {
    display: flex;
    flex-direction: row;
    justify-content: flex-start !important;
    align-items: baseline;
    gap: 0.6em;
    width: 100%;
    margin: 0;
    text-align: left !important;
  }
  .hero-name .name-part {
    display: inline-block;
    margin: 0 !important;
    vertical-align: baseline;
  }
}
  /* Center all footer content only for mobile */
  .footer-content,
  .footer-main,
  .footer-links,
  .footer-bottom,
  .footer-text,
  .footer-social,
  .footer-column {
    justify-content: center !important;
    align-items: center !important;
    text-align: center !important;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
  }
  /* Hide SS logo in footer for mobile */
  .footer-logo {
    display: none !important;
  }

  /* Change footer links orientation to horizontal for mobile */
  .footer-links {
    display: flex !important;
    flex-direction: row !important;
    justify-content: center !important;
    align-items: flex-start !important;
    gap: 2em !important;
    width: 100%;
    text-align: left !important;
  }
  .footer-column {
    min-width: 0;
    flex: 1 1 0;
    margin: 0 !important;
    padding: 0 !important;
  }
  /* Center Send Message button in contact form on mobile */
  .contact-form .form-submit {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-left: auto;
    margin-right: auto;
  }
  /* Center symbol inside contact section icon on mobile */
  /* Restore contact icon alignment to left for mobile */
  .contact .contact-icon {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    margin-left: 0;
    margin-right: 0;
    position: relative;
  }
  .contact .contact-icon i {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2.2rem;
    margin: 0 auto;
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
  }
  /* Center certificate skills section on mobile */
  .certificates .certificate-skills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center !important;
    align-items: center !important;
    text-align: center !important;
    margin-left: auto;
    margin-right: auto;
    gap: 0.4em;
  }
  /* Center certificate provider and description for Udemy and all certificates on mobile */
  .certificates .certificate-provider,
  .certificates .certificate-description {
    display: flex;
    flex-direction: column;
    align-items: center !important;
    text-align: center !important;
    margin-left: auto;
    margin-right: auto;
  }
  .certificates .provider-logo {
    justify-content: center !important;
    align-items: center !important;
    text-align: center !important;
    margin-left: auto;
    margin-right: auto;
  }
  /* Center certificate card content on mobile */
  .certificates .certificate-card {
    display: flex;
    flex-direction: column;
    align-items: center !important;
    text-align: center !important;
  }
  .certificates .certificate-icon {
    margin: 0 auto 0.5em auto !important;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .certificates .certificate-content {
    align-items: center !important;
    text-align: center !important;
    width: 100%;
  }
  .certificates .certificate-actions {
    display: flex;
    justify-content: center;
    margin-top: 0.5em;
  }
  /* Center hero name on small devices */
  .hero-name {
    width: 100%;
    margin: 0;
  /* Center hero name for mobile only */
  .hero-name {
    text-align: center !important;
    justify-content: center !important;
    align-items: center !important;
    margin: 0 auto;
  }
  }
  .hero-name .name-part {
    display: inline-block;
    width: auto;
    margin: 0 0.1em;
  }

  /* Center all section headers and subtitles on mobile */
  .section-header,
  .section-title,
  .section-subtitle {
    text-align: center !important;
    justify-content: center !important;
    align-items: center !important;
    margin-left: auto;
    margin-right: auto;
  }

  /* Center certificate section content on mobile */
  .certificates .section-header,
  .certificates .section-title,
  .certificates .section-subtitle {
    text-align: center !important;
    justify-content: center !important;
    align-items: center !important;
    margin-left: auto;
    margin-right: auto;
  }
  .certificates .certificates-grid {
    justify-content: center !important;
    align-items: center !important;
  }
@media (max-width: 1024px) {
  .contact-icon {
  .hero-name {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 0.6em !important;
    margin-bottom: 0.5em;
    /* ...other properties... */
  }
  .hero-name .name-part {
    margin: 0 !important;
    /* ...other properties... */
  }
  }
  .contact-item:hover .contact-icon {
    background: var(--gradient-secondary);
    color: #fff;
    box-shadow: 0 4px 16px 0 rgba(74,144,226,0.12);
  }
}
/* Light theme: Black gradient for hero name visibility */
/* Light theme: solid black for hero name, dark blue for hero text */
[data-theme="light"] .hero-name .name-part {
    background: linear-gradient(90deg, #23272f 0%, #44484f 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    color: unset !important;
    text-shadow: none !important;
    font-weight: 700 !important;
    margin-right: 0 !important;
}
[data-theme="light"] .hero,
[data-theme="light"] .hero * {
    color: #0a1a2f !important;
    text-shadow: none !important;
}

/* Advanced mobile optimizations */
@media (max-width: 768px) {
    .hero-name {
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: 0.6em !important;
    }
    .hero-name .name-part {
        margin: 0 !important;
    }
    [data-theme="light"] .hero-name .name-part {
        background: none !important;
        color: #23272f !important;
        -webkit-background-clip: initial !important;
        -webkit-text-fill-color: initial !important;
        background-clip: initial !important;
        text-shadow: none !important;
        font-weight: 900 !important;
        margin: 0 !important;
    }
}
[data-theme="light"] .hero-title {
    color: #0F4C75 !important;
    font-weight: 700;
}
[data-theme="light"] .hero-subtitle {
    color: #102040 !important;
    font-weight: 500;
}
[data-theme="light"] .hero-subtitle .highlight {
    background: linear-gradient(90deg, #fff 0%, #f0f0f0 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
    color: unset !important;
    font-weight: 700;
}
[data-theme="light"] .loading-screen {
    background: var(--gradient-primary) !important;
}
@media (max-width: 480px) {
  .navbar {
    padding: 0.5rem 0.5rem !important;
  }
  .nav-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0 0.5rem !important;
    gap: 0.5rem;
  }
  .nav-logo {
    flex: 0 0 auto;
    margin-right: 0.5rem;
  }
  .nav-actions {
    flex: 0 0 auto;
    margin-left: 0.5rem;
    gap: 0.5rem;
  }
  .hamburger {
    margin-left: 0.5rem;
  }
  .nav-menu {
    top: 56px !important;
    padding: 1.5rem 0.5rem !important;
  }
}
[data-theme="light"] .navbar {
    background: linear-gradient(135deg, rgba(240,248,255,0.65) 0%, rgba(240,248,255,0.35) 100%) !important;
    backdrop-filter: blur(32px) !important;
    -webkit-backdrop-filter: blur(32px) !important;
    border-bottom: 1px solid rgba(255,255,255,0.22) !important;
    box-shadow: 0 8px 32px 0 rgba(74,144,226,0.18), 0 1.5px 0 0 rgba(255,255,255,0.10) inset !important;
}
.section-number {
  display: none;
}
@media (max-width: 768px) {
  .custom-cursor {
    display: none !important;
  }
}
/* ============================================
   ADVANCED MOBILE & DESKTOP ENHANCEMENTS
   ============================================ */

/* Smooth scrolling with momentum */
html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-overflow-scrolling: touch;
}

/* Enhanced mobile interactions */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        transform: scale(1.02);
    }
    
    .social-link:hover {
        transform: scale(1.1);
    }
}

/* Advanced backdrop blur effects for supported browsers */
@supports (backdrop-filter: blur(20px)) {
    .navbar {
        backdrop-filter: blur(20px) saturate(1.8);
        -webkit-backdrop-filter: blur(20px) saturate(1.8);
    }
    
    [data-theme="light"] .navbar {
        backdrop-filter: blur(25px) saturate(1.5);
        -webkit-backdrop-filter: blur(25px) saturate(1.5);
    }
}

/* Enhanced loading animations */
.loading-screen {
    background: var(--gradient-hero);
    background-size: 400% 400%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(135, 206, 235, 0.2);
    border-top: 3px solid var(--sky-blue-1);
    border-right: 3px solid var(--sky-blue-2);
    border-radius: 50%;
    animation: spin 1s linear infinite, pulse 2s ease-in-out infinite;
    margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 1;
    }
    50% { 
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Enhanced page transitions */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transform: translateX(-100%);
    transition: transform 0.5s cubic-bezier(0.77, 0, 0.175, 1);
    z-index: var(--z-modal);
}

.page-transition.active {
    transform: translateX(0);
}

/* Advanced mobile navigation */
@media (max-width: 768px) {
    .nav-menu {
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        box-shadow: -5px 0 25px rgba(0,0,0,0.2);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        transform: translateX(50px);
        opacity: 0;
        transition: all 0.3s ease;
    }
    
    .nav-menu.active .nav-link {
        transform: translateX(0);
        opacity: 1;
    }
    
    .nav-menu.active .nav-link:nth-child(1) { transition-delay: 0.1s; }
    .nav-menu.active .nav-link:nth-child(2) { transition-delay: 0.2s; }
    .nav-menu.active .nav-link:nth-child(3) { transition-delay: 0.3s; }
    .nav-menu.active .nav-link:nth-child(4) { transition-delay: 0.4s; }
    .nav-menu.active .nav-link:nth-child(5) { transition-delay: 0.5s; }
}

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */

/* GPU acceleration for animations */
.name-part,
.btn,
.hero-visual,
.loading-spinner,
.navbar,
.hero-background {
    will-change: transform;
    transform: translateZ(0);
}

/* Optimize repaints */
.loading-screen,
.page-transition {
    will-change: transform;
    transform: translateZ(0);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

/* CSS Variables for Theme */
:root {
    /* Color Palette - Sky Blue Gradient Theme */
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --tertiary-bg: #2a2a2a;
    --card-bg: #1e1e1e;
    --card-hover-bg: #252525;
    
    /* Sky Blue Gradient Colors */
    --sky-blue-1: #87CEEB;
    --sky-blue-2: #4A90E2;
    --sky-blue-3: #2E86AB;
    --sky-blue-4: #1B6EC2;
    --sky-blue-5: #0F4C75;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;
    --text-accent: var(--sky-blue-1);
    
    /* Accent Colors */
    --accent-primary: var(--sky-blue-2);
    --accent-secondary: var(--sky-blue-1);
    --accent-hover: var(--sky-blue-3);
    
    /* Gradient Combinations */
    --gradient-primary: linear-gradient(135deg, var(--sky-blue-1) 0%, var(--sky-blue-2) 50%, var(--sky-blue-3) 100%);
    --gradient-secondary: linear-gradient(45deg, var(--sky-blue-2) 0%, var(--sky-blue-4) 100%);
    --gradient-hero: linear-gradient(135deg, var(--primary-bg) 0%, var(--sky-blue-5) 100%);
    --gradient-card: linear-gradient(145deg, var(--card-bg) 0%, rgba(135, 206, 235, 0.1) 100%);
    --gradient-text: linear-gradient(90deg, var(--sky-blue-1) 0%, var(--sky-blue-2) 50%, var(--sky-blue-3) 100%);
    
    /* Utility Colors */
    --border-color: rgba(135, 206, 235, 0.2);
    --shadow-light: rgba(135, 206, 235, 0.1);
    --shadow-medium: rgba(135, 206, 235, 0.2);
    --shadow-heavy: rgba(135, 206, 235, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition-smooth: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-loading: 1050;
}

/* Light Theme Variables */
[data-theme="light"] {
    --primary-bg: #f0f8ff;
    --secondary-bg: #e6f3ff;
    --tertiary-bg: #d9edff;
    --card-bg: rgba(255, 255, 255, 0.9);
    --card-hover-bg: rgba(255, 255, 255, 0.95);
    --text-primary: #1a1a1a;
    --text-secondary: #2c2c2c;
    --text-muted: #4a4a4a;
    --border-color: rgba(74, 144, 226, 0.3);
    --shadow-light: rgba(74, 144, 226, 0.08);
    --shadow-medium: rgba(74, 144, 226, 0.15);
    --shadow-heavy: rgba(74, 144, 226, 0.25);
    
    /* Light theme hero gradient */
    --gradient-hero: linear-gradient(135deg, #f0f8ff 0%, #e6f3ff 50%, #d9edff 100%);
}

/* Light Theme Specific Styles */
[data-theme="light"] .hero {
    background: var(--gradient-hero);
}

[data-theme="light"] .navbar {
    background: linear-gradient(135deg, rgba(240,248,255,0.65) 0%, rgba(240,248,255,0.35) 100%) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(74, 144, 226, 0.2);
    box-shadow: 0 2px 20px rgba(74, 144, 226, 0.1);
}

[data-theme="light"] .nav-link {
    color: var(--text-primary);
}

[data-theme="light"] .nav-link:hover,
[data-theme="light"] .nav-link.active {
    color: var(--accent-primary);
    background: rgba(74, 144, 226, 0.1);
}

[data-theme="light"] .hamburger .bar {
    background: var(--text-primary);
}

[data-theme="light"] .nav-menu {
    background: linear-gradient(135deg, rgba(240,248,255,0.65) 0%, rgba(240,248,255,0.35) 100%) !important;
    backdrop-filter: blur(25px);
    border-top: 1px solid rgba(255,255,255,0.22) !important;
    background: none !important;
}


[data-theme="light"] .hero-title {
    color: var(--text-secondary);
}

[data-theme="light"] .hero-subtitle {
    color: var(--text-primary);
}

[data-theme="light"] .hero-subtitle .highlight {
    background: linear-gradient(90deg, #4A90E2 0%, #1B6EC2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .section-title {
    background: linear-gradient(135deg, #1B6EC2 0%, #2E86AB 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Light theme: apply blue gradient backgrounds to all sections */
[data-theme="light"] section {
    background: var(--gradient-primary) !important;
}

[data-theme="light"] .container {
    background: transparent !important;
}

/* ============================================
   BASE STYLES
   ============================================ */

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ============================================
   LOADING SCREEN
   ============================================ */

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(135, 206, 235, 0.2);
    border-top: 3px solid var(--sky-blue-1);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

.loading-text {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.loading-letter {
    display: inline-block;
    animation: bounce 1.4s ease-in-out infinite both;
}

.loading-letter:nth-child(1) { animation-delay: -0.32s; }
.loading-letter:nth-child(2) { animation-delay: -0.16s; }
.loading-letter:nth-child(3) { animation-delay: 0s; }
.loading-letter:nth-child(4) { animation-delay: 0.16s; }
.loading-letter:nth-child(5) { animation-delay: 0.32s; }
.loading-letter:nth-child(6) { animation-delay: 0.48s; }
.loading-letter:nth-child(7) { animation-delay: 0.64s; }
.loading-letter:nth-child(9) { animation-delay: 0.8s; }
.loading-letter:nth-child(10) { animation-delay: 0.96s; }
.loading-letter:nth-child(11) { animation-delay: 1.12s; }
.loading-letter:nth-child(12) { animation-delay: 1.28s; }
.loading-letter:nth-child(13) { animation-delay: 1.44s; }
.loading-letter:nth-child(14) { animation-delay: 1.6s; }

.loading-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* ============================================
   PROGRESS BAR
   ============================================ */

.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    z-index: var(--z-fixed);
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    transition: width 0.3s ease;
}

/* ============================================
   CUSTOM CURSOR
   ============================================ */

.custom-cursor {
    position: fixed;
    pointer-events: none;
    z-index: var(--z-modal);
    mix-blend-mode: difference;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background: var(--sky-blue-1);
    border-radius: 50%;
    position: absolute;
    top: -4px;
    left: -4px;
    transition: transform 0.1s ease;
}

.cursor-outline {
    width: 32px;
    height: 32px;
    border: 2px solid rgba(135, 206, 235, 0.5);
    border-radius: 50%;
    position: absolute;
    top: -16px;
    left: -16px;
    transition: transform 0.2s ease;
}

/* ============================================
   NAVIGATION
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(135deg, rgba(30,34,40,0.55) 0%, rgba(30,34,40,0.35) 100%);
    backdrop-filter: blur(32px);
    -webkit-backdrop-filter: blur(32px);
    border-bottom: 1px solid rgba(255,255,255,0.22);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.18), 0 1.5px 0 0 rgba(255,255,255,0.10) inset;
    z-index: var(--z-fixed);
    padding: var(--spacing-md) 0;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: var(--spacing-sm) 0;
    background: linear-gradient(135deg, rgba(30,34,40,0.55) 0%, rgba(30,34,40,0.35) 100%);
    backdrop-filter: blur(32px);
    -webkit-backdrop-filter: blur(32px);
    border-bottom: 1px solid rgba(255,255,255,0.22);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.18), 0 1.5px 0 0 rgba(255,255,255,0.10) inset;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo-link {
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: -2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
    padding: var(--spacing-sm) 0;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--accent-primary);
}

.nav-icon {
    font-size: 0.8rem;
    opacity: 0;
    transition: var(--transition-smooth);
}

.nav-link:hover .nav-icon {
    opacity: 1;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
    background: rgba(135, 206, 235, 0.1);
}

.theme-toggle i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: var(--transition-smooth);
}

.theme-toggle .fa-sun {
    opacity: 0;
}

[data-theme="light"] .theme-toggle .fa-moon {
    opacity: 0;
}

[data-theme="light"] .theme-toggle .fa-sun {
    opacity: 1;
}

.nav-resume-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-resume-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition-smooth);
    background: transparent;
    border: 1px solid transparent;
}

.hamburger:hover {
    background: rgba(135, 206, 235, 0.1);
    border-color: rgba(135, 206, 235, 0.2);
    transform: scale(1.05);
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition-smooth);
    border-radius: 2px;
}

/* Dark theme hamburger */
.hamburger:hover .bar {
    background: var(--sky-blue-1);
}

/* Light theme hamburger */
[data-theme="light"] .hamburger {
    border-color: rgba(74, 144, 226, 0.2);
}

[data-theme="light"] .hamburger:hover {
    background: rgba(74, 144, 226, 0.1);
    border-color: rgba(74, 144, 226, 0.3);
}

[data-theme="light"] .hamburger:hover .bar {
    background: #1B6EC2;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-3xl);
    align-items: center;
}

@media (max-width: 1200px) {
    .hero-container {
        grid-template-columns: 1fr 350px;
        gap: var(--spacing-xl);
    }
}

.hero-content {
    animation: fadeInUp 1s ease;
    max-width: 100%;
    width: 100%;
}

.hero-intro {
    margin-bottom: var(--spacing-xl);
}

.hero-greeting {
    display: block;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 400;
}

.hero-name {
    /* Desktop only: do not set gap or flex here, mobile will override in media query */
}

.name-part {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
    animation: slideInUp 0.8s ease;
    transform-origin: bottom;
    margin: 0 !important;
}

.name-part:first-child {
    animation-delay: 0.2s;
}

.name-part:last-child {
    animation-delay: 0.4s;
}

/* Advanced hero animations */
@keyframes slideInUp {
    0% {
        opacity: 0;
        transform: translateY(50px) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Enhanced mobile hero */
@media (max-width: 768px) {
    .name-part {
        font-size: 2.5rem;
        animation: mobileSlideIn 0.8s ease;
    }
    
    .hero-greeting {
        animation: fadeInLeft 0.6s ease;
    }
    
    .hero-title {
        font-size: 1.4rem;
        animation: fadeInRight 0.8s ease 0.4s both;
    }
    
    .hero-subtitle {
        animation: fadeInUp 1s ease 0.6s both;
    }
}

@keyframes mobileSlideIn {
    0% {
        opacity: 0;
        transform: translateX(-30px) scale(0.9);
    }
    100% {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes fadeInLeft {
    0% {
        opacity: 0;
        transform: translateX(-20px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    0% {
        opacity: 0;
        transform: translateX(20px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-titles {
    margin-bottom: var(--spacing-xl);
}

.hero-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    min-height: 60px;
}

.typing-text {
    color: var(--accent-primary);
}

.cursor-blink {
    color: var(--accent-primary);
    animation: blink 1s infinite;
}

.hero-description {
    margin-bottom: var(--spacing-xl);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: left;
    white-space: normal;
    word-wrap: break-word;
    display: block;
    max-width: 100%;
    overflow-wrap: break-word;
    hyphens: auto;
    text-rendering: optimizeLegibility;
}

.hero-subtitle .highlight {
    color: var(--accent-primary);
    font-weight: 600;
    display: inline;
    white-space: normal;
}

.hero-details {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-location {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.availability-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(135, 206, 235, 0.1);
    border: 1px solid rgba(135, 206, 235, 0.3);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
}

@media (max-width: 480px) {
    .availability-badge {
        margin-left: 0;
    }
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--sky-blue-1);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
}

.hero-card {
    position: absolute;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.main-card {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 320px;
    animation: float 6s ease-in-out infinite;
}

.floating-card-1 {
    top: 20%;
    right: 0;
    width: 200px;
    animation: float 4s ease-in-out infinite reverse;
}

.floating-card-2 {
    bottom: 20%;
    left: 0;
    width: 180px;
    animation: float 5s ease-in-out infinite;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27ca3f; }

.card-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.code-block {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.6;
}

.code-line {
    margin-bottom: var(--spacing-xs);
}

.code-keyword { color: #ff79c6; }
.code-class { color: #8be9fd; }
.code-function { color: #50fa7b; }
.code-string { color: #f1fa8c; }
.code-array { color: #bd93f9; }
.code-indent { padding-left: var(--spacing-md); }
.code-indent2 { padding-left: var(--spacing-xl); }

.card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.tech-icons {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 1.2rem;
}

.mini-card h4 {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
}

.mini-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.mini-progress {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    transition: width 2s ease;
}

.expertise-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.expertise-tag {
    padding: 2px var(--spacing-xs);
    background: rgba(135, 206, 235, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    color: var(--accent-primary);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    animation: bounce 2s infinite;
}

.scroll-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.scroll-arrow {
    color: var(--accent-primary);
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
    z-index: -1;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.4);
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-secondary:hover {
    background: var(--card-hover-bg);
    border-color: var(--accent-primary);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--accent-primary);
    border: 2px solid var(--accent-primary);
    position: relative;
}

.btn-outline::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--accent-primary);
    transition: width 0.3s ease;
    z-index: -1;
}

.btn-outline:hover::after {
    width: 100%;
}

.btn-outline:hover {
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.3);
}

/* Advanced mobile enhancements */
@media (max-width: 768px) {
    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 0.9rem;
        min-height: 48px; /* Touch-friendly minimum */
    }
    
    .btn:hover {
        transform: scale(1.05);
    }
    
    .hero-buttons {
        display: flex;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Ultra-wide screen optimizations */
@media (min-width: 1920px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-container {
        grid-template-columns: 1fr 500px;
        gap: var(--spacing-3xl);
    }
    
    .name-part {
        font-size: 4.5rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
}

/* Tablet optimizations */
@media (min-width: 769px) and (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .hero-visual {
        display: none;
    }
    
    .name-part {
        font-size: 3rem;
    }
}

/* Enhanced accessibility and focus states */
.btn:focus-visible {
    outline: 3px solid var(--accent-primary);
    outline-offset: 2px;
}

.nav-link:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .name-part,
    .hero-greeting,
    .hero-title,
    .hero-subtitle {
        animation: none;
    }
    
    .btn:hover {
        transform: none;
    }
    
    .loading-screen {
        animation: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    [data-theme="light"] .hero-name .name-part {
        background: #000 !important;
        -webkit-background-clip: text !important;
        background-clip: text !important;
        -webkit-text-fill-color: transparent !important;
        text-shadow: none !important;
    }
}

section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-number {
    font-size: 0.9rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
    background: var(--secondary-bg);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(135,206,235,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-text {
    z-index: 1;
    position: relative;
}

.about-heading {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.highlight-text {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent-primary);
}

.about-paragraph {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-highlights {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.highlight-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.highlight-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--shadow-light);
    border-color: var(--accent-primary);
}

.highlight-item i {
    color: var(--accent-primary);
    font-size: 1.5rem;
    margin-top: var(--spacing-xs);
}

.highlight-content h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.highlight-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.about-visual {
    position: relative;
}

.about-image-container {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.about-image {
    width: 100%;
    height: 300px;
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.image-placeholder {
    font-size: 4rem;
    color: var(--accent-primary);
    opacity: 0.5;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: var(--spacing-lg);
    color: white;
}

.overlay-content h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.overlay-content p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.about-badges {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.badge i {
    color: var(--accent-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition-smooth);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--shadow-light);
    border-color: var(--accent-primary);
}

.stat-icon {
    font-size: 2rem;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-md);
}

.stat-content .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-primary);
    display: block;
    margin-bottom: var(--spacing-xs);
}

.stat-content .stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-description {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */

.experience-timeline {
    position: relative;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-3xl);
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.timeline-marker {
    position: relative;
    z-index: 2;
}

.marker-dot {
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    border: 4px solid var(--primary-bg);
    box-shadow: 0 0 0 4px var(--border-color);
    margin-left: 30px;
}

.marker-line {
    position: absolute;
    top: 20px;
    left: 40px;
    width: 2px;
    height: 100px;
    background: var(--border-color);
}

.timeline-content {
    position: relative;
}

.timeline-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.date-range {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.date-status {
    padding: 2px var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.date-status.current {
    background: rgba(135, 206, 235, 0.2);
    color: var(--accent-primary);
}

.date-status.completed {
    background: rgba(128, 128, 128, 0.2);
    color: var(--text-secondary);
}

.timeline-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition-smooth);
}

.timeline-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px var(--shadow-light);
    border-color: var(--accent-primary);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-lg);
}

.job-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.company {
    font-size: 1.1rem;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.location {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.company-logo {
    font-size: 2rem;
    color: var(--accent-primary);
    opacity: 0.7;
}

.job-summary {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
    line-height: 1.6;
}

.achievements-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.achievements-list li {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.achievements-list i {
    color: var(--accent-primary);
    margin-top: 2px;
    flex-shrink: 0;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(135, 206, 235, 0.1);
    border: 1px solid rgba(135, 206, 235, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 500;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.projects {
    background: var(--secondary-bg);
}

.projects-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-smooth);
    opacity: 1;
    transform: scale(1);
}

.project-card.hidden {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px var(--shadow-light);
    border-color: var(--accent-primary);
}

.project-card.featured {
    grid-column: span 2;
}

.project-image {
    height: 200px;
    background: var(--gradient-card);
    position: relative;
    overflow: hidden;
}

.project-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 3rem;
    color: var(--accent-primary);
    opacity: 0.5;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition-smooth);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.overlay-content {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.overlay-content h4 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
    color: white;
}

.overlay-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.overlay-actions {
    display: flex;
    gap: var(--spacing-md);
}

.project-link,
.project-modal-btn {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.project-link:hover,
.project-modal-btn:hover {
    transform: scale(1.1);
}

.project-content {
    padding: var(--spacing-xl);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.project-category {
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 600;
    text-transform: uppercase;
}

.project-year {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.project-highlights {
    margin-bottom: var(--spacing-lg);
}

.highlight {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.highlight i {
    color: var(--accent-primary);
}

.projects-cta {
    text-align: center;
    padding: var(--spacing-3xl);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.projects-cta p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   SKILLS SECTION
   ============================================ */

.skills-content {
    max-width: 1000px;
    margin: 0 auto;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.skill-category {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition-smooth);
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px var(--shadow-light);
    border-color: var(--accent-primary);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.category-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.category-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.skill-item {
    position: relative;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.skill-name {
    font-weight: 500;
    color: var(--text-primary);
}

.skill-level {
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 500;
}

.skill-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    width: 0;
    transition: width 1.5s ease;
    border-radius: 3px;
}

.key-proficiencies {
    margin-top: var(--spacing-3xl);
}

.proficiencies-title {
    font-size: 1.8rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.proficiencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.proficiency-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
}

.proficiency-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--shadow-light);
    border-color: var(--accent-primary);
}

.proficiency-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.proficiency-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.proficiency-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ============================================
   EDUCATION SECTION
   ============================================ */

.education {
    background: var(--secondary-bg);
}

.education-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-primary), transparent);
}

.education-item {
    position: relative;
    margin-bottom: var(--spacing-3xl);
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.education-marker {
    position: relative;
    z-index: 2;
}

.education-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition-smooth);
}

.education-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px var(--shadow-light);
    border-color: var(--accent-primary);
}

.degree-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.institution {
    font-size: 1.1rem;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.specialization {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(135, 206, 235, 0.1);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-primary);
}

.specialization h5 {
    font-size: 0.9rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
}

.specialization p {
    color: var(--text-secondary);
}

.coursework h5 {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.course-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.course-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--secondary-bg);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.course-item i {
    color: var(--accent-primary);
    flex-shrink: 0;
}

/* ============================================
   CERTIFICATES SECTION
   ============================================ */

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.certificate-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition-smooth);
}

.certificate-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px var(--shadow-light);
    border-color: var(--accent-primary);
}

.certificate-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

.certificate-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.certificate-provider {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.provider-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--accent-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

.certificate-description {
    margin-bottom: var(--spacing-lg);
}

.certificate-description p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.certificate-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.skill-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(135, 206, 235, 0.1);
    border: 1px solid rgba(135, 206, 235, 0.3);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 500;
}

.conference-section {
    margin-top: var(--spacing-3xl);
}

.conference-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    text-align: center;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.conference-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition-smooth);
}

.conference-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px var(--shadow-light);
    border-color: var(--accent-primary);
}

.conference-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-lg);
}

.presentation-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.conference-details {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.conference-icon {
    font-size: 2rem;
    color: var(--accent-primary);
    opacity: 0.7;
}

.conference-description {
    margin-bottom: var(--spacing-lg);
}

.conference-description p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.conference-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.conference-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact {
    background: var(--secondary-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-intro h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.contact-intro p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--shadow-light);
    border-color: var(--accent-primary);
}


@media (min-width: 1025px) {
  .contact-icon {
    width: 110px;
    height: 110px;
    background: rgba(30, 34, 40, 0.92);
    border: 1.5px solid #23272f;
    border-radius: 22px;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    box-shadow: 0 2px 12px 0 rgba(30,34,40,0.08);
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s, background 0.2s, color 0.2s, border-color 0.2s;
  }
  .contact-item:hover .contact-icon {
    background: linear-gradient(135deg, #4A90E2 0%, #2E86AB 100%);
    color: #fff;
    box-shadow: 0 8px 32px 0 rgba(74,144,226,0.18);
    transform: translateY(-6px) scale(1.07);
    border-color: #4A90E2;
  }
}

.contact-text h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.contact-text a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.contact-text a:hover {
    color: var(--accent-hover);
}

.social-links h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.social-grid {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    margin: 2rem 0 2.5rem 0;
}

.social-grid .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(30, 34, 40, 0.92);
    border: 1.5px solid #23272f;
    border-radius: 12px;
    color: #fff;
    text-decoration: none;
    transition: box-shadow 0.2s, transform 0.2s, background 0.2s;
    font-size: 1.1rem;
    box-shadow: 0 2px 12px 0 rgba(30,34,40,0.08);
    position: relative;
    overflow: hidden;
}

/* Make contact section social icons even smaller */
.contact .social-grid .social-link {
    width: 44px;
    height: 44px;
    border-radius: 12px;
}
.contact .social-grid .social-link i {
    font-size: 2.2rem;
}

.social-grid .social-link:hover {
    background: linear-gradient(135deg, #4A90E2 0%, #2E86AB 100%);
    color: #fff;
    box-shadow: 0 8px 32px 0 rgba(74,144,226,0.18);
    transform: translateY(-6px) scale(1.07);
    border-color: #4A90E2;
}

.social-grid .social-link i {
    font-size: 2.2rem;
    margin: 0;
}

/* Contact Form */
.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.form-header {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.form-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(135, 206, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 3px;
    position: relative;
    transition: var(--transition-smooth);
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--gradient-primary);
    border-color: var(--accent-primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.form-submit {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.btn-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    opacity: 0;
}

.form-submit.loading .btn-text,
.form-submit.loading .btn-icon {
    opacity: 0;
}

.form-submit.loading .btn-loader {
    opacity: 1;
}

.form-error {
    color: #ff6b6b;
    font-size: 0.8rem;
    margin-top: var(--spacing-xs);
    display: block;
}

.form-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 0.9rem;
    opacity: 0;
    transition: var(--transition-smooth);
}

.form-status.success {
    background: rgba(39, 202, 63, 0.1);
    border: 1px solid rgba(39, 202, 63, 0.3);
    color: #27ca3f;
    opacity: 1;
}

.form-status.error {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    color: #ff6b6b;
    opacity: 1;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--primary-bg);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--spacing-3xl);
    align-items: start;
}

.footer-brand {
    display: flex;
    gap: var(--spacing-lg);
    align-items: start;
}

.footer-logo .logo-text {
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-text h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.footer-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.footer-column a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.footer-copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-copyright p {
    margin-bottom: var(--spacing-xs);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */

.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: var(--z-sticky);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -30px, 0);
    }
    70% {
        transform: translate3d(0, -15px, 0);
    }
    90% {
        transform: translate3d(0, -4px, 0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .hero-container,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-visual {
        height: 400px;
    }
    
    .main-card {
        width: 280px;
    }
    
    .floating-card-1,
    .floating-card-2 {
        display: none;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        justify-self: center;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 2rem;
    }
    
    /* Mobile navigation improvements */
    .navbar {
        padding: 0.75rem 0;
        backdrop-filter: blur(20px);
    }
    
    .nav-container {
        padding: 0 1rem;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    
    .hamburger {
        display: flex;
        order: 3;
        margin-left: auto;
        padding: 10px;
        border-radius: 8px;
        background: rgba(135, 206, 235, 0.1);
        border: 1px solid rgba(135, 206, 235, 0.2);
    }
    
    .hamburger:active {
        transform: scale(0.95);
        background: rgba(135, 206, 235, 0.2);
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(25px);
        padding: 2rem 1rem;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        gap: 2rem;
        transform: translateX(-100%);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        overflow-y: auto;
        border-top: 2px solid rgba(135, 206, 235, 0.3);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-item {
        width: 100%;
        text-align: center;
    }
    
    .nav-link {
        padding: 1.2rem 2rem;
        font-size: 1.1rem;
        display: block;
        width: 100%;
        border-radius: 12px;
        transition: all 0.3s ease;
        border: 1px solid transparent;
    }
    
    .nav-link:hover {
        background: rgba(135, 206, 235, 0.15);
        border-color: rgba(135, 206, 235, 0.3);
        transform: translateX(8px);
        color: var(--sky-blue-1);
    }
    
    .nav-actions {
        order: 2;
        margin-bottom: 1.5rem;
        gap: 1rem;
    }
    
    .nav-resume-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
        border-radius: 8px;
    }
    
    /* Enhanced Hamburger Animation */
    .hamburger {
        position: relative;
        padding: 12px;
        border-radius: 12px;
        background: rgba(135, 206, 235, 0.08);
        border: 1px solid rgba(135, 206, 235, 0.15);
        transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        overflow: hidden;
    }
    
    .hamburger::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(135, 206, 235, 0.1), transparent);
        transition: left 0.5s;
    }
    
    .hamburger:hover::before {
        left: 100%;
    }
    
    .hamburger:hover {
        background: rgba(135, 206, 235, 0.15);
        border-color: rgba(135, 206, 235, 0.3);
        transform: scale(1.05);
        box-shadow: 0 8px 25px rgba(135, 206, 235, 0.2);
    }
    
    .hamburger .bar {
        transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        transform-origin: center;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
        background: #87ceeb;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
        transform: scale(0) rotate(180deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
        background: #87ceeb;
    }
    
    .hamburger.active {
        background: rgba(135, 206, 235, 0.2);
        border-color: rgba(135, 206, 235, 0.4);
        transform: scale(1.1);
        box-shadow: 0 10px 30px rgba(135, 206, 235, 0.3);
    }
    
    /* Light theme mobile navigation */
    [data-theme="light"] .hamburger {
        background: rgba(74, 144, 226, 0.1);
        border-color: rgba(74, 144, 226, 0.2);
    }
    
    [data-theme="light"] .hamburger:active {
        background: rgba(74, 144, 226, 0.2);
    }
    
    [data-theme="light"] .nav-menu {
        background: linear-gradient(135deg, rgba(240,248,255,0.65) 0%, rgba(240,248,255,0.35) 100%) !important;
        border-top: 2px solid rgba(74, 144, 226, 0.3);
    }
    
    [data-theme="light"] .nav-link:hover {
        background: rgba(74, 144, 226, 0.15);
        border-color: rgba(74, 144, 226, 0.3);
        color: #1B6EC2;
    }
    
    /* Extra small screens (phones) */
    @media (max-width: 480px) {
        .hamburger {
            padding: 8px;
            margin-right: 0.5rem;
        }
        
        .nav-container {
            padding: 0 0.75rem;
        }
        
        .nav-menu {
            top: 60px;
            height: calc(100vh - 60px);
            padding: 1.5rem 0.75rem;
        }
        
        .nav-link {
            padding: 1rem 1.5rem;
            font-size: 1rem;
        }
        
        .nav-actions {
            margin-bottom: 1rem;
        }
        
        .nav-resume-btn {
            padding: 0.7rem 1.25rem;
            font-size: 0.85rem;
        }
    }
    
    .nav-actions {
        order: -1;
    }
    
    .hero-container {
        padding: 0 var(--spacing-md);
        text-align: center;
    }
    
    .name-part {
        font-size: 2.5rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        line-height: 1.5;
        text-align: center;
    }
    
    .hero-subtitle .highlight {
        display: inline;
        white-space: normal;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .timeline-item,
    .education-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .timeline-item::before,
    .education-timeline::before {
        display: none;
    }
    
    .marker-dot {
        margin-left: 0;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card.featured {
        grid-column: span 1;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .proficiencies-grid {
        grid-template-columns: 1fr;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
    }
    
    .social-grid {
        flex-direction: row;
        gap: 1.5rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .name-part {
        font-size: 3.5rem;
        font-weight: 700;
        background: var(--gradient-text);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        position: relative;
        display: inline-block;
    }
    .hero-name .name-part:first-child {
        margin-right: 0 !important;
    }
    .hero-name {
        gap: 0.2em !important;
    }
    .hero-name .name-part {
        margin: 0 !important;
    }
}
    .projects-filter {
        flex-direction: column;
        align-items: center;
    }
    
    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 45px;
        height: 45px;
    }

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    * {
        background: white !important;
        color: black !important;
    }
    
    .navbar,
    .scroll-indicator,
    .back-to-top,
    .hamburger,
    .theme-toggle,
    .hero-particles,
    .loading-screen,
    .progress-container,
    .custom-cursor {
        display: none !important;
    }
    
    section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
    }
    
    .project-card,
    .timeline-card,
    .education-card {
        break-inside: avoid;
    }
}

/* ============================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-indicator {
        animation: none;
    }
    
    .loading-screen {
        display: none;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #ffffff;
        --text-secondary: #cccccc;
    }
}

/* Focus visible for keyboard navigation */
.nav-link:focus-visible,
.btn:focus-visible,
.social-link:focus-visible,
.filter-btn:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Screen reader only class */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   MOBILE OPTIMIZATIONS
   ============================================ */

/* Mobile-first approach for better performance */
@media (max-width: 768px) {
    /* Base font size adjustment for mobile */
    html {
        font-size: 14px;
    }
    
    /* Container improvements */
    .container {
        padding: 0 1rem;
        max-width: 100%;
    }
    
    /* Navigation fixes */
    .navbar {
        padding: 0.5rem 0;
        backdrop-filter: blur(15px);
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        height: calc(100vh - 60px);
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(25px);
        padding: 2rem 1rem;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        gap: 2rem;
        transform: translateX(-100%);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-item {
        width: 100%;
        text-align: center;
    }
    
    .nav-link {
        padding: 1rem 2rem;
        font-size: 1.1rem;
        display: block;
        width: 100%;
        border-radius: 8px;
        transition: all 0.3s ease;
    }
    
    .nav-link:hover {
        background: rgba(135, 206, 235, 0.1);
        transform: translateX(5px);
    }
    
    .nav-actions {
        order: -1;
        margin-bottom: 1rem;
        gap: 1rem;
    }
    
    .nav-resume-btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    /* Hero section mobile optimizations */
    .hero {
        min-height: 100vh;
        padding: 80px 0 40px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
        padding: 0 1rem;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 2;
        height: 300px;
        margin-top: 2rem;
    }
    
    .hero-intro {
        font-size: 1rem;
        margin-bottom: 1rem;
    }
    
    .hero-titles {
        margin-bottom: 1.5rem;
    }
    
    .name-part {
        font-size: 2.2rem;
        line-height: 1.2;
    }
    
    .hero-title {
        font-size: 1.3rem;
        margin: 0.5rem 0;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.6;
        padding: 0 1rem;
        text-align: center;
    }
    
    .hero-subtitle .highlight {
        display: inline;
        white-space: normal;
        word-break: break-word;
    }
    
    .hero-description {
        font-size: 0.95rem;
        line-height: 1.6;
        margin-bottom: 2rem;
        padding: 0 0.5rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        margin-bottom: 2rem;
    }
    
    .stat-item {
        padding: 1rem 0.5rem;
        text-align: center;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .hero-location {
        margin-bottom: 2rem;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .availability-badge {
        margin: 0;
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        margin-bottom: 2rem;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        padding: 1rem 2rem;
        font-size: 1rem;
        justify-content: center;
    }
    
    .hero-social {
        justify-content: center;
        gap: 1rem;
        flex-wrap: wrap;
    }
    
    .social-link {
        width: 50px;
        height: 50px;
    }
    
    /* Hero cards mobile optimization */
    .main-card {
        width: 250px;
        padding: 1rem;
        position: relative;
        top: auto;
        left: auto;
        transform: none;
    }
    
    .floating-card-1,
    .floating-card-2 {
        display: none;
    }
    
    /* Section headers mobile */
    .section-header {
        text-align: center;
        margin-bottom: 2rem;
    }
    
    .section-number {
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        line-height: 1.3;
        margin: 0.5rem 0;
    }
    
    .section-subtitle {
        font-size: 0.95rem;
        line-height: 1.5;
        padding: 0 1rem;
    }
    
    /* About section mobile */
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-text {
        order: 2;
    }
    
    .about-visual {
        order: 1;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .highlight-item {
        padding: 1rem;
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    /* Experience timeline mobile */
    .experience-timeline {
        padding-left: 0;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 2rem;
        padding-left: 0;
    }
    
    .timeline-marker {
        display: none;
    }
    
    .timeline-content {
        padding: 0;
    }
    
    .timeline-card {
        padding: 1.5rem 1rem;
    }
    
    .timeline-date {
        position: static;
        text-align: left;
        margin-bottom: 1rem;
        padding: 0.5rem 1rem;
        background: rgba(135, 206, 235, 0.1);
        border-radius: 6px;
        width: fit-content;
    }
    
    .company-name {
        font-size: 1.1rem;
    }
    
    .position-title {
        font-size: 1rem;
    }
    
    /* Projects mobile */
    .projects-filter {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
        margin-bottom: 2rem;
    }
    
    .filter-btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
        min-width: auto;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-card {
        padding: 1rem;
    }
    
    .project-card.featured {
        grid-column: span 1;
    }
    
    .project-image {
        height: 150px;
        margin-bottom: 1rem;
    }
    
    .project-title {
        font-size: 1.1rem;
        line-height: 1.3;
    }
    
    .project-description {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .project-tech {
        gap: 0.5rem;
    }
    
    .tech-tag {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
    
    /* Skills section mobile */
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skill-category {
        padding: 1.5rem 1rem;
    }
    
    .category-title {
        font-size: 1.2rem;
    }
    
    .skills-list {
        gap: 1rem;
    }
    
    .skill-item {
        padding: 0.75rem 0;
    }
    
    .skill-name {
        font-size: 0.95rem;
    }
    
    .skill-level {
        font-size: 0.8rem;
    }
    
    .proficiencies-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .proficiency-item {
        padding: 1rem;
        text-align: center;
    }
    
    /* Education mobile */
    .education-timeline {
        padding-left: 0;
    }
    
    .education-item {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 2rem;
    }
    
    .education-marker {
        display: none;
    }
    
    .education-card {
        padding: 1.5rem 1rem;
    }
    
    .degree-title {
        font-size: 1.1rem;
        line-height: 1.3;
    }
    
    .institution {
        font-size: 1rem;
    }
    
    .course-list {
        gap: 0.5rem;
    }
    
    .course-tag {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
    
    /* Certificates mobile */
    .certificates-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .certificate-card {
        padding: 1.5rem 1rem;
        text-align: left;
    }
    
    .certificate-icon {
        width: 50px;
        height: 50px;
        margin-bottom: 1rem;
    }
    
    .certificate-title {
        font-size: 1.1rem;
        line-height: 1.3;
        margin-bottom: 0.5rem;
    }
    
    .certificate-provider {
        margin: 0.75rem 0;
    }
    
    .provider-logo {
        align-items: center;
        gap: 0.5rem;
    }
    
    .certificate-description {
        margin: 1rem 0;
    }
    
    .certificate-description p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .certificate-skills {
        margin: 1rem 0;
        gap: 0.5rem;
    }
    
    .skill-tag {
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
    
    .certificate-actions {
        margin-top: 1rem;
    }
    
    .btn-outline {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
        width: 100%;
        justify-content: center;
    }
    
    /* Contact section mobile */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-form {
        order: 2;
    }
    
    .contact-info {
        order: 1;
    }
    
    .form-group {
        margin-bottom: 1.5rem;
    }
    
    .form-input,
    .form-textarea {
        padding: 1rem;
        font-size: 1rem;
    }
    
    /* Footer mobile */
    .footer-main {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    /* Scroll indicator mobile */
    .scroll-indicator {
        bottom: 2rem;
        left: 50%;
        transform: translateX(-50%);
    }
    
    /* Back to top mobile */
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 50px;
        height: 50px;
    }
}

/* Extra small screens (under 480px) */
@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .container {
        padding: 0 0.75rem;
    }
    
    .name-part {
        font-size: 1.8rem;
    }
    
    .hero-title {
        font-size: 1.1rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
        padding: 0;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .projects-filter {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
    
    .filter-btn {
        width: 100%;
        max-width: 200px;
        text-align: center;
    }
    
    .certificate-card {
        padding: 1rem 0.75rem;
    }
    
    .certificate-title {
        font-size: 1rem;
    }
    
    .certificate-description p {
        font-size: 0.85rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .proficiencies-grid {
        gap: 0.75rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn:hover,
    .nav-link:hover,
    .social-link:hover,
    .project-card:hover,
    .filter-btn:hover {
        transform: none;
    }
    
    .btn:active,
    .nav-link:active,
    .social-link:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }
    
    .project-overlay {
        opacity: 1;
        background: rgba(0, 0, 0, 0.7);
    }
    
    .overlay-actions {
        opacity: 1;
    }
}

/* Landscape orientation fixes */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 60px 0 20px;
    }
    
    .hero-container {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
        align-items: center;
    }
    
    .hero-content {
        order: 1;
        text-align: left;
    }
    
    .hero-visual {
        order: 2;
        height: 200px;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-buttons {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: flex-start;
    }
    
    .btn {
        width: auto;
        min-width: 120px;
    }
}
/* === COPIED MOBILE HEADER STYLES FROM FILE 2: OVERRIDE FOR FIRST FILE === */
@media (max-width: 800px) {
  ul#nav-menu,
  .nav-menu {
    background: var(--primary-bg) !important;
  }
  .nav-menu {
    display: none !important;
  }
  ul.nav-menu,
  div.nav-menu,
  nav .nav-menu {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
  }
  .navbar {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: 60px !important;
    background: rgba(30, 34, 40, 0.40) !important; /* glass tint */
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border-bottom: 1px solid rgba(255,255,255,0.18) !important;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.10) !important;
    z-index: 10000 !important;
    padding: 0 1rem !important;
    box-sizing: border-box !important;
  }
  .nav-container {
    width: 100% !important;
    height: 100% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    position: relative !important;
  }
  .nav-logo { display: none !important; }
  .nav-actions { display: contents !important; }
  .theme-toggle {
    width: 40px !important;
    height: 40px !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 6px !important;
    background: #222 !important; /* force solid color, never transparent */
    color: var(--text-primary) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    font-size: 16px !important;
    flex-shrink: 0 !important;
  }
  .resume-btn, .nav-resume-btn {
    position: absolute !important;
    left: 50% !important;
    top: 50% !important;
    transform: translate(-50%, -50%) !important;
    background: var(--accent-primary) !important;
    color: white !important;
    padding: 8px 16px !important;
    border-radius: 6px !important;
    text-decoration: none !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    white-space: nowrap !important;
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
  }
  .hamburger {
    width: 40px !important;
    height: 40px !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 6px !important;
    background: rgba(30, 34, 40, 0.40) !important; /* glass tint */
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    border: 1px solid var(--border-color) !important;
    cursor: pointer !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 3px !important;
    flex-shrink: 0 !important;
  }
  .hamburger span,
  .hamburger .bar {
    width: 16px !important;
    height: 2px !important;
    background: var(--text-primary, #fff) !important; /* fallback to white if variable is transparent */
    border-radius: 1px !important;
    transition: all 0.3s ease !important;
    display: block !important;
  }
  .hamburger.active span:nth-child(1),
  .hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px) !important;
  }
  .hamburger.active span:nth-child(2),
  .hamburger.active .bar:nth-child(2) {
    opacity: 0 !important;
  }
  .hamburger.active span:nth-child(3),
  .hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px) !important;
  }
  /* Beautiful Mobile Navigation Menu */
  ul#nav-menu {
    position: fixed !important;
    top: 60px !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: linear-gradient(135deg, 
        rgba(30, 41, 59, 0.95) 0%, 
        rgba(15, 23, 42, 0.98) 100%) !important;
    backdrop-filter: blur(25px) saturate(1.8) !important;
    -webkit-backdrop-filter: blur(25px) saturate(1.8) !important;
    transform: translateX(-100%) !important;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) !important;
    z-index: 9999 !important;
    display: flex !important;
    flex-direction: column !important;
    padding: 3rem 2rem !important;
    gap: 1.5rem !important;
    list-style: none !important;
    margin: 0 !important;
    overflow-y: auto !important;
    visibility: visible !important;
    opacity: 1 !important;
    border-top: 2px solid rgba(135, 206, 235, 0.3) !important;
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.1), 
                0 20px 60px rgba(0, 0, 0, 0.3) !important;
  }
  
  ul#nav-menu.active {
    transform: translateX(0) !important;
  }
  
  ul#nav-menu .nav-link {
    display: flex !important;
    align-items: center !important;
    padding: 1rem 1.5rem !important;
    font-size: 1.1rem !important;
    font-weight: 500 !important;
    color: #ffffff !important;
    text-decoration: none !important;
    border-radius: 16px !important;
    background: rgba(135, 206, 235, 0.05) !important;
    border: 1px solid rgba(135, 206, 235, 0.1) !important;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
    transform: translateX(-30px) !important;
    opacity: 0 !important;
    position: relative !important;
    overflow: hidden !important;
  }
  
  ul#nav-menu .nav-link::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: -100% !important;
    width: 100% !important;
    height: 100% !important;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(135, 206, 235, 0.1), 
        transparent) !important;
    transition: left 0.6s ease !important;
  }
  
  ul#nav-menu .nav-link:hover::before {
    left: 100% !important;
  }
  
  ul#nav-menu .nav-link:hover {
    background: rgba(135, 206, 235, 0.15) !important;
    border-color: rgba(135, 206, 235, 0.3) !important;
    transform: translateX(10px) scale(1.02) !important;
    box-shadow: 0 8px 25px rgba(135, 206, 235, 0.2) !important;
    color: #87ceeb !important;
  }
  
  ul#nav-menu .nav-link:active {
    transform: translateX(10px) scale(0.98) !important;
  }
  
  ul#nav-menu.active .nav-link {
    transform: translateX(0) !important;
    opacity: 1 !important;
  }
  
  ul#nav-menu.active .nav-link:nth-child(1) { 
    transition-delay: 0.1s !important; 
  }
  ul#nav-menu.active .nav-link:nth-child(2) { 
    transition-delay: 0.15s !important; 
  }
  ul#nav-menu.active .nav-link:nth-child(3) { 
    transition-delay: 0.2s !important; 
  }
  ul#nav-menu.active .nav-link:nth-child(4) { 
    transition-delay: 0.25s !important; 
  }
  ul#nav-menu.active .nav-link:nth-child(5) { 
    transition-delay: 0.3s !important; 
  }
  
  /* Light Theme Mobile Menu */
  [data-theme="light"] ul#nav-menu {
    background: linear-gradient(135deg, 
        rgba(240, 248, 255, 0.95) 0%, 
        rgba(248, 250, 252, 0.98) 100%) !important;
    border-top: 2px solid rgba(74, 144, 226, 0.3) !important;
    box-shadow: inset 0 1px 0 0 rgba(255, 255, 255, 0.8), 
                0 20px 60px rgba(74, 144, 226, 0.15) !important;
  }
  
  [data-theme="light"] ul#nav-menu .nav-link {
    color: #1e293b !important;
    background: rgba(74, 144, 226, 0.05) !important;
    border: 1px solid rgba(74, 144, 226, 0.1) !important;
  }
  
  [data-theme="light"] ul#nav-menu .nav-link::before {
    background: linear-gradient(90deg, 
        transparent, 
        rgba(74, 144, 226, 0.1), 
        transparent) !important;
  }
  
  [data-theme="light"] ul#nav-menu .nav-link:hover {
    background: rgba(74, 144, 226, 0.15) !important;
    border-color: rgba(74, 144, 226, 0.3) !important;
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.2) !important;
    color: #1B6EC2 !important;
  }
  
  /* Light Theme Hamburger */
  [data-theme="light"] .hamburger {
    background: rgba(74, 144, 226, 0.08) !important;
    border-color: rgba(74, 144, 226, 0.15) !important;
  }
  
  [data-theme="light"] .hamburger::before {
    background: linear-gradient(90deg, transparent, rgba(74, 144, 226, 0.1), transparent) !important;
  }
  
  [data-theme="light"] .hamburger:hover {
    background: rgba(74, 144, 226, 0.15) !important;
    border-color: rgba(74, 144, 226, 0.3) !important;
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.2) !important;
  }
  
  [data-theme="light"] .hamburger.active {
    background: rgba(74, 144, 226, 0.2) !important;
    border-color: rgba(74, 144, 226, 0.4) !important;
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.3) !important;
  }
  
  [data-theme="light"] .hamburger.active .bar:nth-child(1),
  [data-theme="light"] .hamburger.active .bar:nth-child(3) {
    background: #1B6EC2 !important;
  }
  
  body.menu-open {
    overflow: hidden !important;
  }
  
  /* Mobile Menu Overlay */
  .nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  
  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  /* Mobile Touch Enhancements */
  @media (hover: none) and (pointer: coarse) {
    ul#nav-menu .nav-link:hover {
      transform: scale(1.02) !important;
      background: rgba(135, 206, 235, 0.2) !important;
    }
    
    [data-theme="light"] ul#nav-menu .nav-link:hover {
      background: rgba(74, 144, 226, 0.2) !important;
    }
    
    .hamburger:hover {
      transform: scale(1.08) !important;
    }
  }
  
  /* Ripple Effect for Mobile Menu Items */
  ul#nav-menu .nav-link {
    position: relative;
    overflow: hidden;
  }
  
  ul#nav-menu .nav-link::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(135, 206, 235, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
  }
  
  ul#nav-menu .nav-link:active::after {
    width: 300px;
    height: 300px;
  }
  
  [data-theme="light"] ul#nav-menu .nav-link::after {
    background: rgba(74, 144, 226, 0.3);
  }
}