/* ============================================================
   DESIGN TOKENS
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Tier 1: Literal tokens */
  --color-slate-950: #0a0e1a;
  --color-slate-900: #0f1629;
  --color-slate-800: #1a2240;
  --color-slate-700: #243055;
  --color-slate-600: #374670;
  --color-slate-500: #546488;
  --color-slate-400: #7b8bb0;
  --color-slate-300: #a8b5d0;
  --color-slate-200: #cbd5e8;
  --color-slate-100: #e8ecf5;

  --color-cyan-500: #06b6d4;
  --color-cyan-400: #22d3ee;
  --color-cyan-300: #67e8f9;

  --color-violet-500: #8b5cf6;
  --color-violet-400: #a78bfa;
  --color-violet-300: #c4b5fd;

  --color-emerald-500: #10b981;
  --color-emerald-400: #34d399;

  --color-amber-400: #fbbf24;
  --color-rose-400: #fb7185;

  --color-white: #ffffff;
  --color-white-05: rgba(255, 255, 255, 0.05);
  --color-white-08: rgba(255, 255, 255, 0.08);
  --color-white-10: rgba(255, 255, 255, 0.1);
  --color-white-15: rgba(255, 255, 255, 0.15);
  --color-white-50: rgba(255, 255, 255, 0.5);
  --color-white-70: rgba(255, 255, 255, 0.7);

  /* Tier 2: Semantic tokens */
  --color-bg-primary: var(--color-slate-950);
  --color-bg-secondary: var(--color-slate-900);
  --color-bg-card: var(--color-white-05);
  --color-bg-card-hover: var(--color-white-08);
  --color-accent-primary: var(--color-cyan-400);
  --color-accent-secondary: var(--color-violet-400);
  --color-text-primary: var(--color-slate-100);
  --color-text-secondary: var(--color-slate-300);
  --color-text-muted: var(--color-slate-400);
  --color-border: var(--color-white-10);
  --color-border-accent: var(--color-white-15);

  --gradient-accent: linear-gradient(135deg, var(--color-cyan-400), var(--color-violet-400));
  --gradient-accent-subtle: linear-gradient(135deg, var(--color-cyan-500), var(--color-violet-500));
  --gradient-hero: linear-gradient(160deg, var(--color-slate-950) 0%, #0d1b33 40%, #141332 70%, var(--color-slate-950) 100%);

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 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: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  --text-5xl: clamp(2.5rem, 2rem + 3vw, 4rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-glow-cyan: 0 0 20px rgba(34, 211, 238, 0.15), 0 0 60px rgba(34, 211, 238, 0.05);
  --shadow-glow-violet: 0 0 20px rgba(167, 139, 250, 0.15), 0 0 60px rgba(167, 139, 250, 0.05);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  color-scheme: dark;
}


/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-color: var(--color-slate-600) transparent;
  scrollbar-width: thin;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text-primary);
  background: var(--gradient-hero);
  background-attachment: fixed;
  min-block-size: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-inline-size: 100%;
  block-size: auto;
  display: block;
}

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

a:hover:not(:disabled) {
  color: var(--color-cyan-300);
}

/* ============================================================
   LAYOUT
   ============================================================ */
.site-wrapper {
  max-inline-size: 1100px;
  margin-inline: auto;
  padding-inline: var(--space-6);
  padding-block: var(--space-8);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(20px) saturate(1.5);
  -webkit-backdrop-filter: blur(20px) saturate(1.5);
  border-block-end: 1px solid var(--color-border);
  padding-block: var(--space-4);
  transition: background var(--transition-base);
}

.nav-inner {
  max-inline-size: 1100px;
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-weight: 800;
  font-size: var(--text-lg);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: var(--space-2);
  list-style: none;
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

.nav-link:hover:not(:disabled),
.nav-link.active {
  color: var(--color-accent-primary);
  background: var(--color-white-05);
}

.nav-link.active {
  background: rgba(34, 211, 238, 0.1);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--text-xl);
  cursor: pointer;
  padding: var(--space-2);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    inset-block-start: 100%;
    inset-inline: 0;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-4);
    border-block-end: 1px solid var(--color-border);
  }

  .nav-links.open {
    display: flex;
  }
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  padding-block-start: calc(var(--space-24) + 60px);
  padding-block-end: var(--space-16);
  text-align: center;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset-block-start: 20%;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  inline-size: 600px;
  block-size: 600px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.08) 0%, rgba(139, 92, 246, 0.05) 40%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  filter: blur(60px);
}

.hero-avatar-wrapper {
  position: relative;
  display: inline-block;
  margin-block-end: var(--space-8);
}

.hero-avatar {
  inline-size: 160px;
  block-size: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid transparent;
  background-image: var(--gradient-accent);
  background-origin: border-box;
  background-clip: padding-box, border-box;
  box-shadow: var(--shadow-glow-cyan);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hero-avatar:hover {
  transform: scale(1.05);
  box-shadow: 0 0 30px rgba(34, 211, 238, 0.25), 0 0 80px rgba(34, 211, 238, 0.1);
}

.hero-avatar-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: var(--gradient-accent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  padding: 2px;
  animation: ring-rotate 8s linear infinite;
}

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

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-block-end: var(--space-4);
  text-wrap: balance;
}

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

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  font-weight: 400;
  margin-block-end: var(--space-3);
}

.hero-location {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-block-end: var(--space-8);
}

.hero-contact-row {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-block-end: var(--space-6);
}

.contact-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.contact-chip:hover:not(:disabled) {
  background: var(--color-bg-card-hover);
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary);
  box-shadow: var(--shadow-glow-cyan);
}

.hero-social-row {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.social-link:hover:not(:disabled) {
  border-color: var(--color-accent-secondary);
  color: var(--color-accent-secondary);
  background: rgba(167, 139, 250, 0.08);
  transform: translateY(-2px);
}

/* ============================================================
   SECTION
   ============================================================ */
.section {
  padding-block: var(--space-16);
}

.section-header {
  margin-block-end: var(--space-10);
  position: relative;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent-primary);
  margin-block-end: var(--space-3);
  font-family: var(--font-mono);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-wrap: balance;
}

.section-divider {
  inline-size: 60px;
  block-size: 3px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  margin-block-start: var(--space-4);
  border: none;
}

/* ============================================================
   PROFILE / ABOUT
   ============================================================ */
.profile-text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-inline-size: 800px;
}

/* ============================================================
   GLASS CARD (generic)
   ============================================================ */
.glass-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 1px;
  background: linear-gradient(90deg, transparent, var(--color-white-15), transparent);
}

.glass-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-4);
}

.skill-tag {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  transition: all var(--transition-fast);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.skill-tag::before {
  content: "";
  position: absolute;
  inset-block-end: 0;
  inset-inline: 0;
  block-size: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.skill-tag:hover {
  border-color: var(--color-accent-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-cyan);
}

.skill-tag:hover::before {
  transform: scaleX(1);
}

/* Color-coded skill variants */
.skill-tag[data-lang="java"] { --skill-accent: #f89820; }
.skill-tag[data-lang="go"] { --skill-accent: #00add8; }
.skill-tag[data-lang="android"] { --skill-accent: #3ddc84; }
.skill-tag[data-lang="python"] { --skill-accent: #3776ab; }
.skill-tag[data-lang="ruby"] { --skill-accent: #cc342d; }
.skill-tag[data-lang="nodejs"] { --skill-accent: #339933; }

.skill-tag[data-lang]::before {
  background: var(--skill-accent);
}

.skill-tag[data-lang]:hover {
  border-color: var(--skill-accent);
  box-shadow: 0 0 20px color-mix(in oklch, var(--skill-accent) 20%, transparent);
}

/* ============================================================
   EXPERIENCE TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  padding-inline-start: var(--space-10);
}

.timeline::before {
  content: "";
  position: absolute;
  inset-inline-start: 14px;
  inset-block: 0;
  inline-size: 2px;
  background: linear-gradient(to bottom, var(--color-accent-primary), var(--color-accent-secondary), transparent);
}

.timeline-item {
  position: relative;
  padding-block-end: var(--space-10);
}

.timeline-item:last-child {
  padding-block-end: 0;
}

.timeline-dot {
  position: absolute;
  inset-inline-start: calc(-1 * var(--space-10) + 8px);
  inset-block-start: var(--space-8);
  inline-size: 14px;
  block-size: 14px;
  border-radius: 50%;
  background: var(--color-bg-primary);
  border: 2px solid var(--color-accent-primary);
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.3);
  z-index: 1;
}

.timeline-item:hover .timeline-dot {
  background: var(--color-accent-primary);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.5);
}

.timeline-content {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.timeline-content::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  block-size: 100%;
  inline-size: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.timeline-item:hover .timeline-content {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-card);
}

.timeline-item:hover .timeline-content::before {
  opacity: 1;
}

.timeline-role {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-block-end: var(--space-1);
}

.timeline-company {
  font-size: var(--text-base);
  color: var(--color-accent-primary);
  font-weight: 500;
  margin-block-end: var(--space-2);
}

.timeline-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-block-end: var(--space-4);
  flex-wrap: wrap;
}

.timeline-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.timeline-desc {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.timeline-desc ul {
  list-style: none;
  padding: 0;
}

.timeline-desc li {
  position: relative;
  padding-inline-start: var(--space-5);
  margin-block-end: var(--space-2);
}

.timeline-desc li::before {
  content: "▸";
  position: absolute;
  inset-inline-start: 0;
  color: var(--color-accent-primary);
  font-weight: 700;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-container {
  display: grid;
  gap: var(--space-6);
}

.project-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.project-card::after {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.project-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-accent);
  box-shadow: var(--shadow-card);
}

.project-card:hover::after {
  transform: scaleX(1);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  margin-block-end: var(--space-3);
  flex-wrap: wrap;
}

.project-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
}

.project-date {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  background: var(--color-white-05);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.project-company {
  font-size: var(--text-sm);
  color: var(--color-accent-secondary);
  margin-block-end: var(--space-3);
}

.project-desc {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.7;
  display: none;
}

.project-desc.show {
  display: block;
}

.project-desc ul {
  list-style: none;
  padding: 0;
  margin-block-start: var(--space-3);
}

.project-desc li {
  position: relative;
  padding-inline-start: var(--space-5);
  margin-block-end: var(--space-2);
}

.project-desc li::before {
  content: "→";
  position: absolute;
  inset-inline-start: 0;
  color: var(--color-accent-primary);
  font-weight: 700;
}

.project-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-block-start: var(--space-4);
}

.project-tech-tag {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  padding: var(--space-1) var(--space-2);
  background: rgba(34, 211, 238, 0.08);
  color: var(--color-cyan-400);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(34, 211, 238, 0.15);
}

.project-toggle {
  font-size: var(--text-sm);
  color: var(--color-accent-primary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  padding: var(--space-2) 0;
  margin-block-start: var(--space-2);
  transition: color var(--transition-fast);
}

.project-toggle:hover:not(:disabled) {
  color: var(--color-cyan-300);
}

/* Load more projects button */
.load-more-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-block-start: var(--space-8);
  margin-inline: auto;
  padding: var(--space-3) var(--space-8);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-accent-primary);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.load-more-btn:hover:not(:disabled) {
  background: rgba(34, 211, 238, 0.08);
  border-color: var(--color-accent-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-cyan);
}

/* HTMX loading indicator */
.htmx-indicator {
  display: none;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
  display: inline-flex;
}

.loading-spinner {
  inline-size: 18px;
  block-size: 18px;
  border: 2px solid var(--color-border);
  border-block-start-color: var(--color-accent-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ============================================================
   EDUCATION
   ============================================================ */
.education-card {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.education-icon {
  flex-shrink: 0;
  inline-size: 60px;
  block-size: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.1);
  border-radius: var(--radius-md);
  font-size: var(--text-2xl);
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.education-info h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-block-end: var(--space-1);
}

.education-info p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.education-info .edu-date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  margin-block-start: var(--space-1);
}

/* ============================================================
   LANGUAGES
   ============================================================ */
.languages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
}

.lang-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.lang-card:hover {
  border-color: var(--color-border-accent);
  background: var(--color-bg-card-hover);
  transform: translateY(-2px);
}

.lang-flag {
  font-size: var(--text-2xl);
}

.lang-name {
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding-block: var(--space-12);
  text-align: center;
  border-block-start: 1px solid var(--color-border);
  margin-block-start: var(--space-16);
}

.footer-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer-accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes reveal-up {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
    }

    .section,
    .timeline-item,
    .project-card,
    .skill-tag,
    .glass-card {
      animation: reveal-up auto linear backwards;
      animation-timeline: view();
      animation-range: entry 0% entry 30%;
    }
  }
}

/* JS-based fallback for scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Only apply JS fallback if CSS animation-timeline is NOT supported */
@supports ((animation-timeline: view()) and (animation-range: entry)) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============================================================
   STATS ROW (hero area)
   ============================================================ */
.stats-row {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
  margin-block: var(--space-8);
  flex-wrap: wrap;
}

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

.stat-value {
  font-size: var(--text-3xl);
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-block-start: var(--space-1);
}

/* ============================================================
   FLOATING PARTICLES (decorative)
   ============================================================ */
.particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  inline-size: 2px;
  block-size: 2px;
  background: var(--color-accent-primary);
  border-radius: 50%;
  opacity: 0.3;
  animation: float-up linear infinite;
}

@keyframes float-up {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 0.3;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    transform: translateY(-10vh) scale(1);
    opacity: 0;
  }
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  inset-block-end: var(--space-8);
  inset-inline-end: var(--space-8);
  inline-size: 44px;
  block-size: 44px;
  border-radius: 50%;
  background: var(--gradient-accent);
  border: none;
  color: var(--color-slate-950);
  font-size: var(--text-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: 99;
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.3);
}

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

.back-to-top:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 6px 30px rgba(34, 211, 238, 0.4);
}

/* ============================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================ */
@media (max-width: 640px) {
  .site-wrapper {
    padding-inline: var(--space-4);
  }

  .hero {
    padding-block-start: calc(var(--space-16) + 60px);
  }

  .hero-avatar {
    inline-size: 120px;
    block-size: 120px;
  }

  .timeline {
    padding-inline-start: var(--space-8);
  }

  .timeline::before {
    inset-inline-start: 10px;
  }

  .timeline-dot {
    inset-inline-start: calc(-1 * var(--space-8) + 4px);
  }

  .timeline-content {
    padding: var(--space-4) var(--space-5);
  }

  .glass-card {
    padding: var(--space-5);
  }

  .stats-row {
    gap: var(--space-6);
  }

  .education-card {
    flex-direction: column;
    text-align: center;
  }
}