/* ═══════════════════════════════════════════════════════════════════════════
   DESIGN TOKENS — Enhanced with UI/UX Pro Max Design System
   Typography: Archivo + Space Grotesk | Palette: #0F172A / #1E293B / #22C55E
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* Colors — Dark (Default) */
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-card: #1E293B;
  --bg-card-hover: #263449;
  --bg-code: #0B1120;
  --bg-nav: rgba(15, 23, 42, 0.88);

  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;

  --accent-primary: #22C55E;
  --accent-secondary: #3B82F6;
  --accent-tertiary: #8B5CF6;
  --accent-gradient: linear-gradient(135deg, #22C55E 0%, #3B82F6 50%, #8B5CF6 100%);
  --accent-glow: rgba(34, 197, 94, 0.12);
  --accent-glow-blue: rgba(59, 130, 246, 0.12);

  --border-color: rgba(148, 163, 184, 0.1);
  --border-card: rgba(148, 163, 184, 0.07);

  /* Neon glow — subtle */
  --neon-green: 0 0 20px rgba(34, 197, 94, 0.2), 0 0 60px rgba(34, 197, 94, 0.06);
  --neon-blue: 0 0 20px rgba(59, 130, 246, 0.2), 0 0 60px rgba(59, 130, 246, 0.06);

  /* Syntax */
  --code-kw: #c678dd;
  --code-str: #22C55E;
  --code-fn: #3B82F6;
  --code-cls: #e5c07b;
  --code-ann: #06b6d4;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Typography — Archivo (headings) + Space Grotesk (body) */
  --font-heading: 'Archivo', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.3), 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4), 0 6px 20px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 30px rgba(34, 197, 94, 0.12), 0 0 60px rgba(34, 197, 94, 0.04);
  --shadow-glow-blue: 0 0 30px rgba(59, 130, 246, 0.12), 0 0 60px rgba(59, 130, 246, 0.04);

  /* Transition — ease-out for enter, ease-in for exit */
  --transition-fast: 150ms ease-out;
  --transition-base: 250ms ease-out;
  --transition-slow: 400ms ease-out;

  /* Layout */
  --nav-height: 72px;
  --max-width: 1200px;
}

/* ═══════════ LIGHT THEME ═══════════ */
[data-theme="light"] {
  --bg-primary: #F8FAFC;
  --bg-secondary: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F1F5F9;
  --bg-code: #F1F5F9;
  --bg-nav: rgba(248, 250, 252, 0.92);

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #94A3B8;

  --accent-glow: rgba(34, 197, 94, 0.08);
  --accent-glow-blue: rgba(59, 130, 246, 0.08);
  --border-color: rgba(15, 23, 42, 0.1);
  --border-card: rgba(15, 23, 42, 0.08);

  --neon-green: 0 4px 20px rgba(34, 197, 94, 0.12), 0 0 40px rgba(34, 197, 94, 0.04);
  --neon-blue: 0 4px 20px rgba(59, 130, 246, 0.12), 0 0 40px rgba(59, 130, 246, 0.04);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12), 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 4px 20px rgba(34, 197, 94, 0.08);
  --shadow-glow-blue: 0 4px 20px rgba(59, 130, 246, 0.08);
}

/* Light mode card shadows & subtle borders */
[data-theme="light"] .project-card,
[data-theme="light"] .skill-group,
[data-theme="light"] .philosophy__card,
[data-theme="light"] .blog-card,
[data-theme="light"] .github__stat-card,
[data-theme="light"] .timeline__card,
[data-theme="light"] .education__card {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .project-card:hover,
[data-theme="light"] .skill-group:hover,
[data-theme="light"] .philosophy__card:hover,
[data-theme="light"] .blog-card:hover {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1), 0 4px 16px rgba(34, 197, 94, 0.06);
}

[data-theme="light"] .code-window {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .contact__form {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.06);
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

[data-theme="light"] .hero__badge {
  box-shadow: 0 2px 8px rgba(34, 197, 94, 0.12);
}

[data-theme="light"] .btn--primary {
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.2);
}

[data-theme="light"] .btn--primary:hover {
  box-shadow: 0 8px 30px rgba(34, 197, 94, 0.3);
}

[data-theme="light"] .hero__glow-orb--1 {
  background: radial-gradient(circle, rgba(34, 197, 94, 0.06) 0%, transparent 70%);
}
[data-theme="light"] .hero__glow-orb--2 {
  background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
}

[data-theme="light"] .back-to-top {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .about__image-placeholder {
  background: linear-gradient(135deg, #e2e8f0, #f1f5f9);
  color: rgba(34, 197, 94, 0.4);
}

[data-theme="light"] .contribution-cell {
  border-radius: 2px;
}

[data-theme="light"] .project-card__placeholder {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  color: rgba(34, 197, 94, 0.4);
}

[data-theme="light"] .footer {
  background: #f1f5f9;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════════════════════════════════ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition-slow), color var(--transition-slow);
}

h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); }

a { color: inherit; text-decoration: none; cursor: pointer; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; color: inherit; }

/* ═══════════ UTILITY CLASSES ═══════════ */

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  background: var(--accent-primary);
  color: var(--bg-primary);
  font-weight: 600;
  border-radius: var(--radius-md);
  z-index: 10000;
  transition: top 0.3s ease;
}
.skip-link:focus {
  top: 20px;
  outline: 2px solid var(--text-primary);
  outline-offset: 2px;
}

/* Screen Reader Only */
.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;
}

/* Form Loading State */
.form--loading {
  opacity: 0.7;
  pointer-events: none;
}
.form--loading input,
.form--loading textarea,
.form--loading button {
  cursor: not-allowed;
}

/* Field Error Messages */
.field-error {
  color: #ef4444;
  font-size: 0.75rem;
  margin-top: 0.25rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.field-error::before {
  content: '⚠️';
  font-size: 0.875rem;
}

/* Form Feedback Messages */
.form-feedback {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
  animation: fadeUpIn 0.3s ease forwards;
}

.form-feedback--error {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.form-feedback--success {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

/* CSS Contain for Performance */
.reveal {
  contain: layout style paint;
}
input, textarea { font-family: inherit; font-size: inherit; }

::selection { background: var(--accent-primary); color: #fff; }

/* ═══════════════════════════════════════════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════════════════════════════════════════ */

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-lg); }
.section { padding: var(--space-5xl) 0; position: relative; }

.section__header { text-align: center; margin-bottom: var(--space-4xl); }

.section__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--accent-primary);
  margin-bottom: var(--space-sm);
  font-weight: 500;
}

.tag-bracket { color: var(--text-muted); }

.section__title {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

.section__line {
  width: 60px;
  height: 4px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  margin: 0 auto;
}

/* ═══════════════════════════════════════════════════════════════════════════
   UTILITY CLASSES
   ═══════════════════════════════════════════════════════════════════════════ */

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-base);
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
}

.btn--primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.25);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(34, 197, 94, 0.4);
}

.btn--outline {
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}
.btn--outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

/* ═══════════════════════════════════════════════════════════════════════════
   NAVBAR
   ═══════════════════════════════════════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  height: var(--nav-height);
  transition: all var(--transition-base);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }

.navbar__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }

.navbar__logo {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  background: rgba(34, 197, 94, 0.05);
  border: 1.5px solid rgba(34, 197, 94, 0.1);
  display: inline-flex;
  align-items: center;
  gap: 2px;
  overflow: hidden;
}
.navbar__logo:hover {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.35);
  box-shadow: 0 0 25px rgba(34, 197, 94, 0.2), 0 0 60px rgba(34, 197, 94, 0.06), inset 0 0 15px rgba(34, 197, 94, 0.04);
  transform: translateY(-2px) scale(1.05);
}

/* Per-character styling */
.logo-char {
  display: inline-block;
  font-weight: 900;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}
.logo-char--t {
  color: var(--accent-primary);
  text-shadow: 0 0 8px rgba(34, 197, 94, 0.3);
}
.logo-char--d {
  color: var(--accent-secondary);
  text-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}
.navbar__logo:hover .logo-char--t {
  transform: rotate(-12deg) scale(1.2) translateY(-2px);
  text-shadow: 0 0 20px rgba(34, 197, 94, 0.7), 0 0 40px rgba(34, 197, 94, 0.3);
  color: #4ADE80;
}
.navbar__logo:hover .logo-char--d {
  transform: rotate(12deg) scale(1.2) translateY(-2px);
  text-shadow: 0 0 20px rgba(59, 130, 246, 0.7), 0 0 40px rgba(59, 130, 246, 0.3);
  color: #60A5FA;
}

.logo-bracket {
  color: var(--accent-tertiary);
  font-weight: 800;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-shadow: 0 0 6px rgba(139, 92, 246, 0.3);
}
.navbar__logo:hover .logo-bracket {
  color: #A78BFA;
  text-shadow: 0 0 18px rgba(139, 92, 246, 0.6), 0 0 35px rgba(139, 92, 246, 0.2);
}
.logo-slash {
  color: var(--accent-primary);
  font-weight: 800;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.navbar__logo:hover .logo-slash {
  color: #F59E0B;
  text-shadow: 0 0 18px rgba(245, 158, 11, 0.6), 0 0 35px rgba(245, 158, 11, 0.2);
  transform: rotate(360deg);
}

.navbar__links { display: flex; align-items: center; gap: var(--space-xl); }

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.navbar__actions { display: flex; align-items: center; gap: var(--space-md); }

.theme-toggle {
  width: 40px; height: 40px;
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-lg);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
}
.theme-toggle:hover { color: var(--accent-primary); border-color: var(--accent-primary); }

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 6px; width: 32px; height: 32px; justify-content: center; z-index: 1001; position: relative; }
.hamburger span { display: block; width: 100%; height: 2.5px; background: var(--text-primary); border-radius: 4px; transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); transform-origin: center; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); background: var(--accent-primary); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); background: var(--accent-primary); }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .navbar .navbar__links {
    display: none;
    position: fixed; top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    flex-direction: column; justify-content: center; align-items: center; gap: var(--space-sm);
    z-index: 1000;
    padding: 80px var(--space-xl) 40px;
    list-style: none;
    margin: 0;
    overflow-y: auto;
  }
  .navbar .navbar__links.open {
    display: flex;
    animation: menuFadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }
  .navbar__links li {
    opacity: 0;
    transform: translateY(30px);
    list-style: none;
    width: 100%;
    max-width: 320px;
    text-align: center;
  }
  .navbar__links.open li {
    animation: menuItemIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }
  .navbar__links.open li:nth-child(1) { animation-delay: 0.05s; }
  .navbar__links.open li:nth-child(2) { animation-delay: 0.1s; }
  .navbar__links.open li:nth-child(3) { animation-delay: 0.15s; }
  .navbar__links.open li:nth-child(4) { animation-delay: 0.2s; }
  .navbar__links.open li:nth-child(5) { animation-delay: 0.25s; }
  .navbar__links.open li:nth-child(6) { animation-delay: 0.3s; }
  .navbar .navbar__links .nav-link {
    font-size: 1.3rem;
    font-weight: 700;
    display: block;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    position: relative;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    border: 1px solid transparent;
  }
  .navbar .navbar__links .nav-link:hover,
  .navbar .navbar__links .nav-link.active {
    color: var(--accent-primary);
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.15);
  }
  .navbar .navbar__links .nav-link::after {
    display: none;
  }
  /* Decorative elements in mobile menu */
  .navbar__links::before {
    content: '';
    position: absolute;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: var(--accent-primary);
    filter: blur(100px);
    opacity: 0.06;
    top: 10%; left: -20%;
    pointer-events: none;
  }
  .navbar__links::after {
    content: '';
    position: absolute;
    width: 180px; height: 180px;
    border-radius: 50%;
    background: var(--accent-secondary);
    filter: blur(80px);
    opacity: 0.06;
    bottom: 15%; right: -15%;
    pointer-events: none;
  }
}

@media (max-width: 768px) {
  [data-theme="light"] .navbar__links {
    background: rgba(248, 250, 252, 0.96);
  }
  [data-theme="light"] .nav-link:hover,
  [data-theme="light"] .nav-link.active {
    background: rgba(34, 197, 94, 0.08);
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════════════════════ */

.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
}

/* Ambient glow orbs */
.hero__glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.15;
}
.hero__glow-orb--1 {
  width: 400px; height: 400px;
  background: var(--accent-primary);
  top: 10%; left: -5%;
  animation: orbFloat1 12s ease-in-out infinite;
}
.hero__glow-orb--2 {
  width: 350px; height: 350px;
  background: var(--accent-secondary);
  bottom: 5%; right: -5%;
  animation: orbFloat2 15s ease-in-out infinite;
}

@keyframes orbFloat1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}
@keyframes orbFloat2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-20px, 20px); }
}

.hero__particles { position: absolute; inset: 0; pointer-events: none; }

.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-4xl);
  align-items: center;
  min-height: calc(100svh - var(--nav-height));
  padding: var(--space-3xl) 0;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.4rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

.hero__title {
  font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-2xl));
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.hero__tagline {
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.hero__cta { display: flex; gap: var(--space-md); margin-bottom: var(--space-3xl); flex-wrap: wrap; }

.hero__stats { display: flex; gap: var(--space-3xl); }
.stat { text-align: left; }
.stat__number { font-family: var(--font-heading); font-size: var(--text-3xl); font-weight: 800; display: inline; }
.stat__plus { font-size: var(--text-2xl); font-weight: 700; color: var(--accent-primary); }
.stat__label { display: block; font-size: var(--text-sm); color: var(--text-muted); margin-top: var(--space-xs); }

/* Code Window */
.code-window {
  background: var(--bg-code);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--neon-green);
  position: relative;
}
.code-window::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: var(--accent-gradient);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  opacity: 0.25;
  pointer-events: none;
}

.code-window__header {
  display: flex; align-items: center; gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-color);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot--red { background: #ff5f57; }
.dot--yellow { background: #febc2e; }
.dot--green { background: #28c840; }
.code-window__title { margin-left: var(--space-md); font-family: var(--font-mono); font-size: var(--text-sm); color: var(--text-muted); }

.code-window__body {
  padding: var(--space-lg) var(--space-xl);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.9;
  overflow-x: auto;
  color: var(--text-secondary);
}
.code-window__body .kw { color: var(--code-kw); }
.code-window__body .str { color: var(--code-str); }
.code-window__body .fn { color: var(--code-fn); }
.code-window__body .cls { color: var(--code-cls); }
.code-window__body .ann { color: var(--code-ann); }

/* Scroll indicator */
.hero__scroll-indicator {
  position: absolute; bottom: var(--space-2xl); left: 50%;
  transform: translateX(-50%);
  animation: floatY 2.5s ease-in-out infinite;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}
.mouse {
  display: block; width: 28px; height: 44px;
  border: 2px solid var(--accent-primary);
  border-radius: 14px; position: relative;
  background: rgba(34, 197, 94, 0.04);
  box-shadow: 0 0 15px rgba(34, 197, 94, 0.1), inset 0 0 10px rgba(34, 197, 94, 0.03);
  transition: all 0.3s ease;
}
.mouse:hover {
  border-color: var(--accent-primary);
  box-shadow: 0 0 25px rgba(34, 197, 94, 0.2), inset 0 0 15px rgba(34, 197, 94, 0.06);
  transform: scale(1.08);
}
.mouse__wheel {
  display: block; width: 4px; height: 10px;
  background: var(--accent-primary);
  border-radius: 3px;
  position: absolute; top: 8px; left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 2s ease-in-out infinite;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.4);
}
.hero__scroll-text {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 500;
}
@keyframes scrollWheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.6; }
  100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}
@keyframes floatY {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

@media (max-width: 992px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__tagline { margin-left: auto; margin-right: auto; }
  .hero__cta { justify-content: center; }
  .hero__stats { justify-content: center; }
  .hero__visual { display: none; }
}
@media (max-width: 576px) {
  .hero__stats { flex-direction: column; gap: var(--space-lg); align-items: center; }
  .stat { text-align: center; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════════════════════════════════ */

.about__grid { display: grid; grid-template-columns: 300px 1fr; gap: var(--space-4xl); align-items: center; }

.about__image-wrapper { position: relative; width: 260px; height: 260px; margin: 0 auto; }
.about__image-placeholder {
  width: 100%; height: 100%;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  display: flex; align-items: center; justify-content: center;
  font-size: 4rem;
  color: var(--accent-primary);
  border: 1px solid var(--border-card);
  position: relative; z-index: 1;
  overflow: hidden;
}
.about__image-placeholder::before {
  content: ''; position: absolute; inset: 0;
  background: var(--accent-gradient); opacity: 0.05;
}

.about__photo {
  width: 100%; height: 100%;
  border-radius: var(--radius-xl);
  object-fit: cover;
  border: 2px solid var(--border-card);
  position: relative; z-index: 1;
  box-shadow: var(--shadow-lg);
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}
.about__photo:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg), var(--neon-green);
}

.about__image-ring {
  position: absolute; inset: -12px;
  border-radius: calc(var(--radius-xl) + 8px);
  border: 2px dashed var(--border-color);
  animation: spin 30s linear infinite;
}
@keyframes spin { from { transform: rotate(0); } to { transform: rotate(360deg); } }

.about__text { font-size: var(--text-lg); color: var(--text-secondary); margin-bottom: var(--space-lg); line-height: 1.8; }
.about__text strong { color: var(--text-primary); font-weight: 600; }

.about__highlights { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); margin-top: var(--space-xl); }

.highlight {
  display: flex; align-items: center; gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  font-weight: 500; font-size: var(--text-sm);
  transition: all var(--transition-base);
  cursor: pointer;
}
.highlight i { color: var(--accent-primary); font-size: var(--text-lg); }
.highlight:hover { border-color: var(--accent-primary); transform: translateY(-2px); box-shadow: var(--shadow-glow); }

@media (max-width: 768px) {
  .about__grid { grid-template-columns: 1fr; text-align: center; }
  .about__highlights { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   SKILLS
   ═══════════════════════════════════════════════════════════════════════════ */

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

.skill-group {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.skill-group::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: var(--accent-gradient);
  transform: scaleX(0); transition: transform var(--transition-base);
}
.skill-group:hover { border-color: rgba(34, 197, 94, 0.2); transform: translateY(-4px); box-shadow: var(--shadow-lg), var(--shadow-glow); }
.skill-group:hover::before { transform: scaleX(1); }

.skill-group__icon {
  width: 56px; height: 56px;
  margin: 0 auto var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-2xl);
  color: var(--accent-primary);
}
.skill-group__title { font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-lg); }
.skill-group__content { width: 100%; }
.skill-group__tags { display: flex; flex-wrap: wrap; gap: var(--space-sm); justify-content: center; }

.skill-tag {
  padding: 0.35rem 0.85rem;
  background: rgba(148, 163, 184, 0.12);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer;
}
.skill-tag--primary { background: var(--accent-glow); border-color: rgba(34, 197, 94, 0.2); color: var(--accent-primary); font-weight: 600; }
.skill-tag:hover { border-color: var(--accent-primary); color: var(--accent-primary); transform: scale(1.06); }

@media (max-width: 992px) { .skills__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px) {
  .skills__grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }
  .skill-group {
    padding: 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border-left: 3px solid var(--accent-primary);
    text-align: left;
  }
  .skill-group__icon {
    display: none;
  }
  .skill-group__content {
    padding: var(--space-md) var(--space-lg);
  }
  .skill-group__title {
    font-size: var(--text-base);
    margin-bottom: var(--space-xs);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
  }
  .skill-group__title::before {
    content: '›';
    font-size: 1.2em;
    font-weight: 800;
    color: var(--accent-primary);
  }
  .skill-group__tags {
    justify-content: flex-start;
    gap: 6px;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
    scrollbar-width: none;
  }
  .skill-group__tags::-webkit-scrollbar { display: none; }
  .skill-tag {
    padding: 0.3rem 0.7rem;
    font-size: 0.72rem;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .skill-tag--primary {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   PROJECTS
   ═══════════════════════════════════════════════════════════════════════════ */

.projects__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg), var(--neon-green); border-color: rgba(34, 197, 94, 0.15); }

.project-card__image { position: relative; height: 220px; overflow: hidden; }

.project-card__placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #1E293B 0%, #0F172A 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem;
  color: rgba(34, 197, 94, 0.35);
  transition: transform var(--transition-slow);
}
.project-card__placeholder--alt { background: linear-gradient(135deg, #1E3A4F 0%, #0F2A3A 100%); color: rgba(6, 182, 212, 0.35); }
.project-card__placeholder--accent { background: linear-gradient(135deg, #2D1E5F 0%, #1A0F3A 100%); color: rgba(139, 92, 246, 0.35); }
.project-card__placeholder--warm { background: linear-gradient(135deg, #3A2E1E 0%, #2A1A0F 100%); color: rgba(245, 158, 11, 0.35); }
.project-card:hover .project-card__placeholder { transform: scale(1.06); }

.project-card__overlay {
  position: absolute; inset: 0;
  background: rgba(15, 23, 42, 0.75);
  display: flex; align-items: center; justify-content: center;
  gap: var(--space-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}
.project-card:hover .project-card__overlay { opacity: 1; }

.project-card__link {
  width: 48px; height: 48px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-xl);
  transform: translateY(10px);
  transition: all var(--transition-base);
  cursor: pointer;
}
.project-card:hover .project-card__link { transform: translateY(0); }
.project-card .project-card__link:hover { background: var(--accent-secondary); transform: translateY(-2px); }

.project-card__content { padding: var(--space-xl); position: relative; overflow: hidden; }
.project-card__content::before {
  content: ''; position: absolute; top: 0; left: -75%; width: 50%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.02), transparent);
  transform: skewX(-20deg); transition: left 0.75s ease;
}
.project-card:hover .project-card__content::before { left: 125%; }

.project-card__tags { display: flex; gap: var(--space-sm); margin-bottom: var(--space-md); flex-wrap: wrap; }
.project-card__tags span {
  padding: 0.25rem 0.7rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--accent-primary);
  background: var(--accent-glow);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.project-card__title { font-size: var(--text-xl); font-weight: 700; margin-bottom: var(--space-sm); }
.project-card__desc { font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.7; margin-bottom: var(--space-lg); }
.project-card__meta { display: flex; gap: var(--space-lg); font-size: var(--text-sm); color: var(--text-muted); }
.project-card__meta i { color: var(--accent-primary); margin-right: var(--space-xs); }

/* View detail CTA */
.project-card__view-detail {
  padding: 0 var(--space-xl) var(--space-lg);
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.project-card:hover .project-card__view-detail {
  opacity: 1;
  transform: translateY(0);
}
.project-card__view-detail span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent-primary);
  cursor: pointer;
}
.project-card__view-detail i {
  transition: transform 0.3s ease;
}
.project-card:hover .project-card__view-detail i {
  transform: translateX(4px);
}

@media (max-width: 768px) { .projects__grid { grid-template-columns: 1fr; } }

/* ═══════════════════════════════════════════════════════════════════════════
   EXPERIENCE TIMELINE
   ═══════════════════════════════════════════════════════════════════════════ */

.timeline { position: relative; max-width: 720px; margin: 0 auto; padding-left: var(--space-3xl); }
.timeline::before {
  content: ''; position: absolute; left: 14px; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary), transparent);
}

.timeline__item { position: relative; margin-bottom: var(--space-3xl); }
.timeline__item:last-child { margin-bottom: 0; }

.timeline__dot {
  position: absolute;
  left: calc(-1 * var(--space-3xl) + 6px);
  top: 8px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-primary);
  z-index: 1;
  box-shadow: 0 0 0 4px var(--bg-primary), var(--neon-green);
}

.timeline__card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.timeline__card:hover { border-color: rgba(34, 197, 94, 0.15); box-shadow: var(--shadow-md), var(--shadow-glow); transform: translateX(4px); }

.timeline__date { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--accent-primary); font-weight: 600; margin-bottom: var(--space-sm); }
.timeline__role { font-size: var(--text-xl); font-weight: 700; margin-bottom: var(--space-xs); }
.timeline__company { font-size: var(--text-base); color: var(--text-muted); display: block; margin-bottom: var(--space-lg); }

.timeline__list li {
  position: relative;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}
.timeline__list li::before { content: '▹'; position: absolute; left: 0; color: var(--accent-primary); font-weight: 700; }
.timeline__list li strong { color: var(--text-primary); font-weight: 600; }

@media (max-width: 576px) {
  .timeline { padding-left: var(--space-2xl); }
  .timeline__dot { left: calc(-1 * var(--space-2xl) + 6px); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   EDUCATION
   ═══════════════════════════════════════════════════════════════════════════ */

.education__card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.3s ease;
}

.education__card:hover {
  border-color: rgba(34, 197, 94, 0.15);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.education__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.1);
  border-radius: var(--radius-md);
  color: var(--accent-primary);
  font-size: 1.25rem;
}

.education__degree {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.education__institution {
  font-size: var(--text-base);
  color: var(--accent-primary);
  font-weight: 600;
  display: block;
  margin-bottom: var(--space-xs);
}

.education__date {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
  display: block;
  margin-bottom: var(--space-sm);
}

.education__desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-sm);
}

@media (max-width: 576px) {
  .education__card { flex-direction: column; gap: var(--space-md); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   PHILOSOPHY
   ═══════════════════════════════════════════════════════════════════════════ */

.philosophy__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }

.philosophy__card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}
.philosophy__card::after {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(34, 197, 94, 0.02), transparent);
  transition: left 0.6s ease;
}
.philosophy__card:hover::after { left: 100%; }
.philosophy__card:hover { border-color: rgba(34, 197, 94, 0.15); transform: translateY(-4px); box-shadow: var(--shadow-md), var(--shadow-glow); }

.philosophy__icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-xl);
  color: var(--accent-primary);
  margin-bottom: var(--space-lg);
}
.philosophy__card h3 { font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-md); }
.philosophy__card p { font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.8; }

@media (max-width: 768px) { .philosophy__grid { grid-template-columns: 1fr; } }

/* ═══════════════════════════════════════════════════════════════════════════
   BLOG
   ═══════════════════════════════════════════════════════════════════════════ */

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

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.blog-card:hover { border-color: rgba(34, 197, 94, 0.15); transform: translateY(-4px); box-shadow: var(--shadow-md), var(--shadow-glow); }

.blog-card__tag {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--accent-primary);
  background: var(--accent-glow);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
  align-self: flex-start;
}
.blog-card__title {
  font-size: var(--text-lg); font-weight: 700; margin-bottom: var(--space-md); line-height: 1.4;
  background-image: linear-gradient(var(--accent-primary), var(--accent-primary));
  background-position: 0% 100%;
  background-repeat: no-repeat;
  background-size: 0% 2px;
  transition: background-size 0.4s ease;
}
.blog-card:hover .blog-card__title { background-size: 100% 2px; }

.blog-card__excerpt { font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.7; flex: 1; margin-bottom: var(--space-lg); }
.blog-card__footer { display: flex; gap: var(--space-lg); font-size: var(--text-xs); color: var(--text-muted); }
.blog-card__footer i { margin-right: var(--space-xs); }

@media (max-width: 992px) { .blog__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px) { .blog__grid { grid-template-columns: 1fr; } }

/* ═══════════════════════════════════════════════════════════════════════════
   GITHUB ACTIVITY
   ═══════════════════════════════════════════════════════════════════════════ */

.github__content { max-width: 800px; margin: 0 auto; }

.github__contribution-grid {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  gap: 3px;
  margin-bottom: var(--space-2xl);
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
}
.contribution-cell { aspect-ratio: 1; border-radius: 3px; transition: all 0.15s ease; }
.contribution-cell:hover { transform: scale(1.8); z-index: 1; }
.contribution-0 { background: rgba(148, 163, 184, 0.06); }
.contribution-1 { background: rgba(34, 197, 94, 0.15); }
.contribution-2 { background: rgba(34, 197, 94, 0.3); }
.contribution-3 { background: rgba(34, 197, 94, 0.5); }
.contribution-4 { background: rgba(34, 197, 94, 0.8); }

/* Snake animation states - using higher specificity instead of !important */
.contribution-grid .contribution-cell.snake-head {
  background: #4ADE80;
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.8), 0 0 16px rgba(74, 222, 128, 0.4);
  border-radius: 4px;
  transform: scale(1.4);
  z-index: 3;
}
.contribution-grid .contribution-cell.snake-body-1 {
  background: rgba(34, 197, 94, 0.7);
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.5);
  transform: scale(1.2);
  z-index: 2;
}
.contribution-grid .contribution-cell.snake-body-2 {
  background: rgba(34, 197, 94, 0.45);
  box-shadow: 0 0 4px rgba(34, 197, 94, 0.3);
  transform: scale(1.1);
  z-index: 1;
}
.contribution-grid .contribution-cell.snake-body-3 {
  background: rgba(34, 197, 94, 0.25);
  transform: scale(1.05);
}
.cell-eaten {
  animation: cellEaten 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.cell-wave {
  animation: cellWavePulse 0.4s ease both;
}

.github__stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }

.github__stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.github__stat-card:hover { border-color: rgba(34, 197, 94, 0.2); transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.github__stat-card i { font-size: var(--text-2xl); color: var(--accent-primary); margin-bottom: var(--space-sm); display: block; }
.github__stat-number { display: block; font-family: var(--font-heading); font-size: var(--text-2xl); font-weight: 800; margin-bottom: var(--space-xs); }
.github__stat-card:hover .github__stat-number { color: var(--accent-primary); }
.github__stat-label { font-size: var(--text-xs); color: var(--text-muted); }

@media (max-width: 768px) {
  .github__stats { grid-template-columns: repeat(2, 1fr); }
  .github__contribution-grid { display: none; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   CONTACT
   ═══════════════════════════════════════════════════════════════════════════ */

.contact__inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4xl); align-items: start; }

.contact__heading { font-size: var(--text-3xl); font-weight: 800; margin-bottom: var(--space-lg); line-height: 1.3; }
.contact__text { font-size: var(--text-lg); color: var(--text-secondary); margin-bottom: var(--space-2xl); line-height: 1.8; }

.contact__links { display: flex; flex-direction: column; gap: var(--space-md); }
.contact__link-item {
  display: flex; align-items: center; gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
}
.contact__link-item i { font-size: var(--text-xl); color: var(--accent-primary); width: 24px; text-align: center; }
.contact__link-item:hover { border-color: var(--accent-primary); transform: translateX(4px); background: var(--bg-card-hover); }

/* Contact Form */
.contact__form { display: flex; flex-direction: column; gap: var(--space-lg); }

.form-group { position: relative; }
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  transition: all var(--transition-base);
  outline: none;
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group label {
  position: absolute; left: 1.25rem; top: 1rem;
  font-size: var(--text-base); color: var(--text-muted);
  pointer-events: none;
  transition: all var(--transition-base);
  background: var(--bg-card);
  padding: 0 var(--space-xs);
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent-primary); box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1); }

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  top: -0.5rem; font-size: var(--text-xs); color: var(--accent-primary);
}

@media (max-width: 768px) { .contact__inner { grid-template-columns: 1fr; } }

/* ═══════════════════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */

.footer { padding: var(--space-2xl) 0; border-top: 1px solid var(--border-color); }
.footer__inner { display: flex; align-items: center; justify-content: space-between; }
.footer__left p, .footer__right p { font-size: var(--text-sm); color: var(--text-muted); margin-top: var(--space-sm); }

.footer__social { display: flex; gap: var(--space-md); }
.footer__social a {
  width: 40px; height: 40px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-lg);
  color: var(--text-secondary);
  transition: all var(--transition-base);
  cursor: pointer;
}
.footer__social a:hover { color: var(--accent-primary); border-color: var(--accent-primary); transform: translateY(-3px); box-shadow: var(--shadow-glow); }

@media (max-width: 768px) {
  .footer__inner { flex-direction: column; gap: var(--space-lg); text-align: center; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   BACK TO TOP
   ═══════════════════════════════════════════════════════════════════════════ */

.back-to-top {
  position: fixed; bottom: var(--space-xl); right: var(--space-xl);
  width: 48px; height: 48px;
  border-radius: var(--radius-full);
  background: var(--accent-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-lg);
  z-index: 999;
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.25);
  cursor: pointer;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(34, 197, 94, 0.4); }

/* ═══════════════════════════════════════════════════════════════════════════
   PROJECT DETAIL MODAL
   ═══════════════════════════════════════════════════════════════════════════ */

/* Overlay */
.project-detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.project-detail-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Main panel */
.project-detail {
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  background: var(--bg-secondary);
  border-radius: 24px;
  overflow-x: hidden;
  overflow-y: auto;
  position: relative;
  transform: translateY(40px) scale(0.95);
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.6), 0 10px 40px rgba(0, 0, 0, 0.3);
}
.project-detail-overlay.active .project-detail {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.project-detail {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-primary) rgba(255, 255, 255, 0.05);
}
.project-detail::-webkit-scrollbar { width: 8px; }
.project-detail::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  margin: 8px 0;
}
.project-detail::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary, var(--accent-primary)));
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: padding-box;
  transition: background 0.3s ease;
}
.project-detail::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-secondary, var(--accent-primary)), var(--accent-primary));
  border: 1px solid transparent;
}

/* Close button */
.project-detail__close {
  position: sticky;
  top: 1rem;
  z-index: 10;
  margin-left: auto;
  margin-right: 1.5rem;
  margin-top: 0;
  margin-bottom: -44px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0) rotate(-90deg);
}
.project-detail-overlay.active .project-detail__close {
  opacity: 1;
  transform: rotate(0) scale(1);
  transition-delay: 0.2s;
}

.project-detail__close:hover {
  background: rgba(239, 68, 68, 0.9);
  border-color: transparent;
  transform: scale(1.1) rotate(90deg);
}

/* Hero Section */
.project-detail__hero {
  position: relative;
  padding: 3rem;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  overflow: hidden;
  flex-shrink: 0;
}

.project-detail__hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(34, 197, 94, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
}

.project-detail__hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.project-detail__hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: 2rem;
}

/* Icon wrapper */
.project-detail__icon-wrapper {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}
.project-detail__icon-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
}

/* Hero text */
.project-detail__hero-text { flex: 1; }

.project-detail__tags {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.project-detail__tags span {
  padding: 0.4rem 1rem;
  background: rgba(34, 197, 94, 0.15);
  color: var(--accent-primary);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-detail__title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.project-detail__subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

/* Meta row (role, duration, team) */
.project-detail__meta-row {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.project-detail__meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.project-detail__meta-item i {
  color: var(--accent-primary);
  font-size: 1rem;
}

.project-detail__meta-item strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Stats bar */
.project-detail__stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  padding: var(--space-2xl) var(--space-3xl);
  margin-top: calc(-1 * var(--space-xl));
  position: relative;
  z-index: 3;
}
.project-detail__stat {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.project-detail__stat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.project-detail__stat.visible::before { transform: scaleX(1); }
.project-detail__stat-number {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  display: inline;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.project-detail__stat-suffix {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--accent-primary);
}
.project-detail__stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* Body sections */
.project-detail__body {
  padding: 2.5rem 3rem;
  flex: 1;
}
.project-detail__section {
  margin-top: var(--space-3xl);
}
.project-detail__section-title {
  font-size: var(--text-2xl);
  font-weight: 800;
  margin-bottom: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  letter-spacing: -0.02em;
}
.project-detail__section-title i {
  color: var(--accent-primary);
  font-size: var(--text-xl);
}
.project-detail__description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.9;
  max-width: 720px;
}

/* Features grid */
.project-detail__features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}
.project-detail__feature {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  gap: var(--space-lg);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: default;
  position: relative;
  overflow: hidden;
}
.project-detail__feature::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.project-detail__feature:hover {
  border-color: rgba(34, 197, 94, 0.3);
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-md), 0 0 30px rgba(34, 197, 94, 0.08);
}
.project-detail__feature:hover::before { opacity: 0.03; }
.project-detail__feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  color: var(--accent-primary);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.project-detail__feature-content { position: relative; z-index: 1; }
.project-detail__feature-content h4 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}
.project-detail__feature-content p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Screenshots */
.project-detail__screenshots {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.project-detail__screenshot {
  aspect-ratio: 9/16;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  border: 1px solid var(--border-card);
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.project-detail__screenshot:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 255, 255, 0.15);
}
.project-detail__screenshot-inner {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  position: relative;
}
.project-detail__screenshot-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.15;
  transition: opacity 0.4s ease;
}
.project-detail__screenshot:hover .project-detail__screenshot-inner::before { opacity: 0.25; }
.project-detail__screenshot-icon {
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.7);
  position: relative;
  z-index: 1;
}
.project-detail__screenshot-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  position: relative;
  z-index: 1;
}
/* Shimmer effect on screenshots */
.project-detail__screenshot::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.05) 50%,
    transparent 70%
  );
  transform: translateX(-100%);
  transition: transform 0.8s ease;
}
.project-detail__screenshot:hover::after {
  transform: translateX(100%);
}

/* Tech stack */
.project-detail__tech {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.project-detail__tech-item {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: default;
}
.project-detail__tech-item:hover {
  border-color: rgba(34, 197, 94, 0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}
.project-detail__tech-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  color: var(--accent-primary);
  flex-shrink: 0;
}
.project-detail__tech-info h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: 2px;
}
.project-detail__tech-info p {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* Challenges */
.project-detail__challenges {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}
.project-detail__challenge {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}
.project-detail__challenge:hover {
  border-color: rgba(34, 197, 94, 0.2);
  box-shadow: var(--shadow-md);
}
.project-detail__challenge::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 4px;
  background: var(--accent-gradient);
  border-radius: 4px 0 0 4px;
}
.project-detail__challenge h4 {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  padding-left: var(--space-sm);
}
.project-detail__challenge-block {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  padding-left: var(--space-sm);
}
.project-detail__challenge-block:last-child { margin-bottom: 0; }
.project-detail__challenge-badge {
  padding: 0.25rem 0.65rem;
  font-size: var(--text-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
  height: fit-content;
  margin-top: 2px;
}
.project-detail__challenge-badge--problem {
  background: rgba(239, 68, 68, 0.1);
  color: #EF4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.project-detail__challenge-badge--solution {
  background: rgba(34, 197, 94, 0.1);
  color: #22C55E;
  border: 1px solid rgba(34, 197, 94, 0.2);
}
.project-detail__challenge-block p {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Links */
.project-detail__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.project-detail__link-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-base);
  transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: pointer;
  text-decoration: none;
}
.project-detail__link-btn--primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.25);
}
.project-detail__link-btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(34, 197, 94, 0.4);
}
.project-detail__link-btn--outline {
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  background: transparent;
}
.project-detail__link-btn--outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(34, 197, 94, 0.15);
}

/* Responsive */
@media (max-width: 768px) {
  .project-detail-overlay {
    padding: 0;
  }
  .project-detail {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
  }
  .project-detail__hero {
    padding: var(--space-4xl) var(--space-xl) var(--space-2xl);
  }
  .project-detail__hero-content {
    flex-direction: column;
    align-items: flex-start;
  }
  .project-detail__icon-wrapper {
    width: 72px;
    height: 72px;
    font-size: 2rem;
  }
  .project-detail__body {
    padding: 0 var(--space-xl) var(--space-3xl);
  }
  .project-detail__stats-bar {
    grid-template-columns: repeat(2, 1fr);
    padding: var(--space-xl) var(--space-xl);
  }
  .project-detail__features {
    grid-template-columns: 1fr;
  }
  .project-detail__screenshots {
    grid-template-columns: repeat(2, 1fr);
  }
  .project-detail__tech {
    grid-template-columns: 1fr;
  }
  .project-detail__meta-row {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* Light mode */
[data-theme="light"] .project-detail__close {
  background: rgba(255, 255, 255, 0.85);
}
[data-theme="light"] .project-detail__stat {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}
[data-theme="light"] .project-detail__feature {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .project-detail__challenge {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .project-detail__tech-item {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

/* ═══════════ MOBILE GLOBAL RESPONSIVE ENHANCEMENTS ═══════════ */
@media (max-width: 768px) {
  /* Tighter spacing */
  .section { padding: var(--space-3xl) 0; }
  .container { padding: 0 var(--space-md); }

  /* Hero adjustments */
  .hero { min-height: 85vh; }
  .hero__content { text-align: center; }
  .hero__inner { gap: var(--space-xl); flex-direction: column; }
  .hero__visual { max-width: 220px; margin: 0 auto; }

  /* Scroll indicator mobile */
  .hero__scroll-indicator { bottom: var(--space-lg); }
  .mouse { width: 24px; height: 38px; border-width: 1.5px; }
  .mouse__wheel { width: 3px; height: 8px; top: 7px; }
  .hero__scroll-text { font-size: 10px; letter-spacing: 0.2em; }

  /* Section headings */
  .section-eyebrow { font-size: var(--text-xs); }
  .section-title { font-size: var(--text-2xl); }

  /* Skills grid - handled by 576px breakpoint */

  /* Experience timeline */
  .experience__item { padding-left: var(--space-xl); }

  /* Philosophy */
  .philosophy__card { padding: var(--space-lg); }

  /* Contact */
  .contact__form { padding: var(--space-xl); }

  /* Footer */
  .footer__inner { flex-direction: column; text-align: center; gap: var(--space-md); }
  .footer__links { justify-content: center; }

  /* Back to top button */
  .back-to-top { bottom: var(--space-lg); right: var(--space-md); width: 40px; height: 40px; font-size: 1rem; }

  /* Contribution grid */
  .contribution__graph { overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: var(--space-sm); }
}

@media (max-width: 480px) {
  /* Extra small screens */
  .hero__scroll-indicator { bottom: var(--space-md); }
  .mouse { width: 20px; height: 32px; }
  .mouse__wheel { width: 3px; height: 6px; top: 6px; }

  .skills__grid { grid-template-columns: repeat(2, 1fr); }
  .project-detail__screenshots { grid-template-columns: 1fr; }
  .project-detail__stats-bar { grid-template-columns: 1fr; }

  /* Nav logo */
  .navbar .nav-logo { font-size: 1.2rem; }
}

/* ═══════════ BLOG DETAIL MODAL ═══════════ */
.blog-detail-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.blog-detail-overlay.active {
  opacity: 1;
  visibility: visible;
}

.blog-detail {
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  background: var(--bg-secondary);
  border-radius: 24px;
  overflow-x: hidden;
  overflow-y: auto;
  position: relative;
  padding-top: 0.5rem;
  transform: translateY(40px) scale(0.95);
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.6), 0 10px 40px rgba(0, 0, 0, 0.3);
}

.blog-detail-overlay.active .blog-detail {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.blog-detail {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-primary) rgba(255, 255, 255, 0.05);
}
.blog-detail::-webkit-scrollbar { width: 8px; }
.blog-detail::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  margin: 8px 0;
}
.blog-detail::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary, var(--accent-primary)));
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: padding-box;
  transition: background 0.3s ease;
}
.blog-detail::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-secondary, var(--accent-primary)), var(--accent-primary));
  border: 1px solid transparent;
}

/* Close Button */
.blog-detail__close {
  position: sticky;
  top: 1rem;
  z-index: 10;
  margin-left: auto;
  margin-right: 1.5rem;
  margin-top: 0;
  margin-bottom: -44px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0) rotate(-90deg);
}

.blog-detail-overlay.active .blog-detail__close {
  transform: scale(1) rotate(0deg);
  transition-delay: 0.2s;
}

.blog-detail__close:hover {
  background: rgba(239, 68, 68, 0.9);
  border-color: transparent;
  transform: scale(1.1) rotate(90deg);
}

/* Hero Section */
.blog-detail__hero {
  position: relative;
  padding: 3rem;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  overflow: hidden;
  flex-shrink: 0;
}

.blog-detail__hero-bg {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(34, 197, 94, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
}

.blog-detail__hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.blog-detail-particle {
  position: absolute;
  border-radius: 50%;
  animation: float-up linear infinite;
}

@keyframes float-up {
  0% { transform: translateY(0) scale(1); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100px) scale(0.5); opacity: 0; }
}

.blog-detail__hero-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: 2rem;
}

.blog-detail__icon-wrapper {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.blog-detail__icon-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.blog-detail__hero-text { flex: 1; }

.blog-detail__tags {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.blog-detail__tags span {
  padding: 0.4rem 1rem;
  background: rgba(34, 197, 94, 0.15);
  color: var(--accent-primary);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.blog-detail__title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.blog-detail__subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.blog-detail__meta-row {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.blog-detail__meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.blog-detail__meta-item i {
  color: var(--accent-primary);
  font-size: 1rem;
}

.blog-detail__meta-item strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Body */
.blog-detail__body {
  padding: 2.5rem 3rem;
  flex: 1;
}

/* Stats Bar */
.blog-detail__stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.05) 0%, rgba(59, 130, 246, 0.05) 100%);
  border-radius: 16px;
  border: 1px solid rgba(34, 197, 94, 0.1);
}

.blog-detail__stat {
  text-align: center;
  position: relative;
}

.blog-detail__stat::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 60%;
  background: linear-gradient(to bottom, transparent, var(--border-color), transparent);
}

.blog-detail__stat:first-child::before { display: none; }

.blog-detail__stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline;
}

.blog-detail__stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-left: 0.25rem;
}

.blog-detail__stat-label {
  display: block;
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

/* Section */
.blog-detail__section {
  margin-bottom: 2.5rem;
}

.blog-detail__section-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
}

.blog-detail__section-title i {
  color: var(--accent-primary);
  font-size: 1.1rem;
}

.blog-detail__description {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* Article Content */
.blog-detail__content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.blog-detail__content-section {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border-left: 3px solid var(--accent-primary);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blog-detail__content-section:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.blog-detail__content-section h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.blog-detail__content-section p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* Key Takeaways */
.blog-detail__takeaways-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.blog-detail__takeaways-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.08) 0%, rgba(34, 197, 94, 0.02) 100%);
  border-radius: 12px;
  border: 1px solid rgba(34, 197, 94, 0.15);
  font-size: 1rem;
  color: var(--text-primary);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blog-detail__takeaways-list li:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.15);
}

.blog-detail__takeaways-list li i {
  color: var(--accent-primary);
  font-size: 1.25rem;
  margin-top: 0.1rem;
  flex-shrink: 0;
}

/* Tech Tags */
.blog-detail__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.blog-detail__tech-item {
  padding: 0.6rem 1.25rem;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 8px;
  border: 1px solid rgba(59, 130, 246, 0.2);
  transition: all 0.3s ease;
}

.blog-detail__tech-item:hover {
  background: rgba(59, 130, 246, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.2);
}

.blog-detail__tech-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-secondary);
}

/* Related Posts */
.blog-detail__related {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.blog-detail__related-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: all 0.3s ease;
}

.blog-detail__related-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(34, 197, 94, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.blog-detail__related-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: white;
  flex-shrink: 0;
}

.blog-detail__related-content h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  line-height: 1.4;
}

.blog-detail__related-content span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Action Buttons */
.blog-detail__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.blog-detail__action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.blog-detail__action-btn--primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.3);
}

.blog-detail__action-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(34, 197, 94, 0.4);
}

.blog-detail__action-btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  text-decoration: none;
}

.blog-detail__action-btn--outline:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
}

/* Glow Orbs */
.blog-detail-glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.4;
  animation: glow-pulse 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes glow-pulse {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.2); opacity: 0.6; }
}

/* Blog Card Updates */
.blog-card {
  cursor: pointer;
  position: relative;
}

.blog-card__view-detail {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: var(--accent-primary);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
}

.blog-card:hover .blog-card__view-detail,
.blog-card:focus .blog-card__view-detail {
  opacity: 1;
  transform: translateY(0);
}

.blog-card__view-detail i {
  transition: transform 0.3s ease;
}

.blog-card:hover .blog-card__view-detail i,
.blog-card:focus .blog-card__view-detail i {
  transform: translateX(4px);
}

/* Light Theme Adjustments */
[data-theme="light"] .project-detail-overlay,
[data-theme="light"] .blog-detail-overlay {
  background: rgba(248, 250, 252, 0.5);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
}

[data-theme="light"] .blog-detail {
  background: var(--bg-secondary);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .blog-detail__close {
  background: rgba(0, 0, 0, 0.1);
  border-color: rgba(0, 0, 0, 0.2);
  color: var(--text-primary);
}

[data-theme="light"] .blog-detail__close:hover {
  background: rgba(239, 68, 68, 0.9);
  color: white;
}

[data-theme="light"] .blog-detail__stat {
  background: rgba(255, 255, 255, 0.5);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .blog-detail__content-section {
  background: rgba(0, 0, 0, 0.02);
}

[data-theme="light"] .blog-detail__takeaways-list li {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.06) 0%, rgba(34, 197, 94, 0.02) 100%);
  border-color: rgba(34, 197, 94, 0.2);
}

[data-theme="light"] .blog-detail__tech-item {
  background: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.15);
}

[data-theme="light"] .blog-detail__related-card {
  background: rgba(0, 0, 0, 0.02);
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .blog-detail__related-card:hover {
  background: rgba(0, 0, 0, 0.04);
}

/* Responsive */
@media (max-width: 768px) {
  .blog-detail-overlay {
    padding: 0;
  }

  .blog-detail {
    max-height: 100vh;
    border-radius: 0;
  }

  .blog-detail__hero {
    padding: 2rem 1.5rem;
  }

  .blog-detail__hero-content {
    flex-direction: column;
    text-align: center;
  }

  .blog-detail__icon-wrapper {
    width: 80px;
    height: 80px;
    font-size: 2.5rem;
    margin: 0 auto;
  }

  .blog-detail__title {
    font-size: 1.75rem;
  }

  .blog-detail__meta-row {
    justify-content: center;
    gap: 1rem;
  }

  .blog-detail__body {
    padding: 1.5rem;
  }

  .blog-detail__stats-bar {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .blog-detail__stat {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
  }

  .blog-detail__stat::before {
    display: none;
  }

  .blog-detail__related {
    grid-template-columns: 1fr;
  }

  .blog-detail__actions {
    flex-direction: column;
  }

  .blog-detail__action-btn {
    justify-content: center;
  }
}