/* ===== DESIGN TOKENS ===== */
:root,
[data-theme="light"] {
  /* Surfaces */
  --color-bg: #ffffff;
  --color-surface: #f8fafc;
  --color-surface-2: #f1f5f9;
  --color-surface-offset: #f1f5f9;
  --color-border: #e2e8f0;
  --color-divider: #e2e8f0;

  /* Section divider */
  --color-section-divider: #0891b2;

  /* Text */
  --color-text: #0f172a;
  --color-text-muted: #64748b;
  --color-text-faint: #94a3b8;

  /* Primary accent — electric cyan (blockchain/tech) */
  --color-primary: #0891b2;
  --color-primary-hover: #0e7490;
  --color-primary-active: #155e75;
  --color-primary-glow: rgba(8, 145, 178, 0.15);

  /* Semantic */
  --color-success: #059669;
  --color-error: #dc2626;

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Spacing (4px base) */
  --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;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

/* ===== DARK MODE ===== */
[data-theme="dark"] {
  --color-bg: #0a0f1a;
  --color-surface: #111827;
  --color-surface-2: #1e2538;
  --color-surface-offset: #0d1220;
  --color-border: #2a3450;
  --color-divider: #1e293b;

  --color-section-divider: #22d3ee;

  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-faint: #64748b;

  --color-primary: #22d3ee;
  --color-primary-hover: #67e8f9;
  --color-primary-active: #06b6d4;
  --color-primary-glow: rgba(34, 211, 238, 0.12);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0a0f1a;
    --color-surface: #111827;
    --color-surface-2: #1e2538;
    --color-surface-offset: #0d1220;
    --color-border: #2a3450;
    --color-divider: #1e293b;

    --color-section-divider: #22d3ee;
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-faint: #64748b;
    --color-primary: #22d3ee;
    --color-primary-hover: #67e8f9;
    --color-primary-active: #06b6d4;
    --color-primary-glow: rgba(34, 211, 238, 0.12);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
  }
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1,h2,h3,h4,h5,h6 { text-wrap: balance; line-height: 1.15; }
p, li, figcaption { text-wrap: pretty; max-width: 72ch; }

::selection {
  background: var(--color-primary-glow);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button { cursor: pointer; background: none; border: none; }

a, button, [role="button"], [role="link"], input, textarea, select {
  transition: color var(--transition-interactive),
              background var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

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

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.header--scrolled {
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-4) var(--space-6);
}

@media (min-width: 768px) {
  .header__inner { padding: var(--space-4) var(--space-8); }
}

.header__logo svg { display: block; }

.header__nav {
  display: none;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .header__nav { display: flex; }
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  letter-spacing: 0.01em;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

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

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

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text-muted);
}

@media (min-width: 768px) {
  .mobile-menu-btn { display: none; }
}

.mobile-menu-btn:hover { color: var(--color-text); }

/* Mobile nav overlay */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: color-mix(in srgb, var(--color-bg) 95%, transparent);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-nav-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  text-align: center;
}

.mobile-nav__links a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.mobile-nav__links a:hover {
  color: var(--color-primary);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-32) var(--space-6) var(--space-16);
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-divider) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-divider) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 70%);
}

.hero__content {
  position: relative;
  text-align: center;
  max-width: 800px;
}

.hero__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.hero__subtitle {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}

.hero__summary {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero__cta-row {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-interactive);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

.btn--outline {
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  background: transparent;
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.hero__meta {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
}

.hero__meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.hero__meta-item svg { flex-shrink: 0; }

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-faint);
  animation: bounce 2s ease infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

/* ===== SECTIONS ===== */
.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

.section--alt {
  background: var(--color-bg);
}

/* Blue line divider between sections */
.section + .section::before,
.section + .section--alt::before {
  content: '';
  display: block;
  width: 100%;
  max-width: var(--content-wide);
  height: 2px;
  background: var(--color-section-divider);
  margin: 0 auto;
  margin-bottom: clamp(var(--space-12), 8vw, var(--space-24));
}

.section-header {
  margin-bottom: var(--space-10);
}

.section-header--center {
  text-align: center;
}

.section-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  gap: var(--space-10);
}

@media (min-width: 768px) {
  .about-grid { grid-template-columns: 1.2fr 1fr; align-items: start; }
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}

.stat-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 16px var(--color-primary-glow);
}

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
}

.stat-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ===== TIMELINE ===== */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-10);
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: calc(-1 * var(--space-8) + 2px);
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: 2px solid var(--color-bg);
  box-shadow: 0 0 0 2px var(--color-primary);
}

.section--alt .timeline-marker {
  border-color: var(--color-surface);
}

.timeline-content {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition-interactive);
}

.section--alt .timeline-content {
  background: var(--color-surface-2);
}

.timeline-content:hover {
  border-color: var(--color-primary);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
}

.timeline-role {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.timeline-company {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  margin-top: var(--space-1);
}

.timeline-date {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  white-space: nowrap;
  flex-shrink: 0;
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-offset);
  border-radius: var(--radius-full);
}

.timeline-location {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.timeline-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--space-3);
}

.timeline-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.timeline-list li {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.timeline-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  opacity: 0.6;
}

/* Earlier roles */
.earlier-roles {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.earlier-role {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}

@media (min-width: 640px) {
  .earlier-role {
    grid-template-columns: 1fr 1fr auto;
    align-items: center;
    gap: var(--space-4);
  }
}

.earlier-role:last-child { border-bottom: none; }

.earlier-role__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

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

.acquired {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.earlier-role__date {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ===== ACHIEVEMENTS ===== */
.achievements-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .achievements-grid { grid-template-columns: 1fr 1fr; }
}

.achievement-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition-interactive), transform 0.3s ease, box-shadow var(--transition-interactive);
}

.achievement-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-primary-glow);
}

.achievement-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-glow);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.achievement-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

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

/* ===== VIDEOS ===== */
.videos-grid {
  display: grid;
  gap: var(--space-6);
}

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

.video-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-interactive), transform 0.3s ease, box-shadow var(--transition-interactive);
}

.video-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-primary-glow);
}

.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  background: #000;
  cursor: pointer;
  overflow: hidden;
}

.video-embed img {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: translate(-50%, -50%);
  transition: transform 0.3s ease, filter 0.3s ease;
}

.video-embed:hover img {
  transform: translate(-50%, -50%) scale(1.05);
  filter: brightness(0.8);
}

.video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.4));
}

.video-play svg {
  display: block;
}

.video-embed:hover .video-play {
  transform: translate(-50%, -50%) scale(1.1);
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-info {
  padding: var(--space-4) var(--space-5);
}

.video-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
  line-height: 1.3;
}

.video-meta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  gap: var(--space-8);
}

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

.skills-category {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.skills-category__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.skills-category__title svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.skill-tag {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-primary-glow);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid color-mix(in srgb, var(--color-primary) 20%, transparent);
  transition: background var(--transition-interactive), border-color var(--transition-interactive);
}

.skill-tag:hover {
  background: color-mix(in srgb, var(--color-primary) 20%, transparent);
  border-color: var(--color-primary);
}

/* Languages */
.language-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.language-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-1) var(--space-4);
  align-items: center;
}

.language-name {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.language-level {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.language-bar {
  grid-column: 1 / -1;
  height: 4px;
  background: var(--color-divider);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.language-bar__fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width 0.8s ease;
}

/* ===== EDUCATION & VOLUNTEERING ===== */
.edu-vol-grid {
  display: grid;
  gap: var(--space-10);
}

@media (min-width: 768px) {
  .edu-vol-grid { grid-template-columns: 1fr 1fr; }
}

.edu-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.edu-degree {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.edu-school {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: var(--space-1);
}

.edu-date {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.vol-list {
  list-style: none;
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.vol-list li {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.vol-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  opacity: 0.6;
}

/* ===== CONTACT ===== */
.section--contact {
  text-align: center;
}

.contact-inner {
  max-width: 600px;
  margin-inline: auto;
}

.contact-text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
}

@media (min-width: 640px) {
  .contact-links { flex-direction: row; justify-content: center; }
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-interactive);
}

.contact-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 16px var(--color-primary-glow);
}

.contact-link svg { flex-shrink: 0; }

/* ===== FOOTER ===== */
.footer {
  padding: var(--space-6) var(--space-6);
  border-top: 1px solid var(--color-divider);
  text-align: center;
}

.footer__text {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ===== ANIMATIONS (scroll reveal) ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* Ensure content is visible if JS fails */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}