/* ============================================
   AI生成师 · 个人作品集
   Cinema x AI - 影像与智能的交汇
   ============================================ */

/* ===== ROOT VARIABLES — MACARON LIGHT (DEFAULT) ===== */
:root {
  --bg-primary: #FFF8F0;
  --bg-secondary: #F5EDE5;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FBF5F0;
  --bg-overlay: rgba(255, 248, 240, 0.95);
  --text-primary: #3D3530;
  --text-secondary: #7A706A;
  --text-muted: #B0A8A0;
  --accent-gold: #E8A4C8;
  --accent-gold-glow: rgba(232, 164, 200, 0.18);
  --accent-cyan: #A8D8EA;
  --accent-cyan-glow: rgba(168, 216, 234, 0.15);
  --border-color: #E8DDD5;
  --border-hover: #D8CDB5;
  --shadow-sm: 0 2px 8px rgba(60, 50, 40, 0.06);
  --shadow-md: 0 8px 30px rgba(60, 50, 40, 0.08);
  --shadow-lg: 0 20px 60px rgba(60, 50, 40, 0.12);
  --shadow-gold: 0 8px 30px rgba(232, 164, 200, 0.18);
  --gradient-hero: radial-gradient(ellipse at 20% 50%, rgba(232, 164, 200, 0.12) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 30%, rgba(168, 216, 234, 0.10) 0%, transparent 50%);
  --grain-opacity: 0.015;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-display: 'Cormorant Garamond', 'Noto Serif SC', serif;
  --font-body: 'Inter', 'Noto Serif SC', sans-serif;
  --max-width: 1200px;
  --sidebar-width: 240px;
}

[data-theme="dark"] {
  --bg-primary: #0a0a0b;
  --bg-secondary: #111113;
  --bg-card: #18181b;
  --bg-card-hover: #1f1f23;
  --bg-overlay: rgba(10, 10, 11, 0.95);
  --text-primary: #f5f5f0;
  --text-secondary: #a0a0a0;
  --text-muted: #6b6b6b;
  --accent-gold: #d4a574;
  --accent-gold-glow: rgba(212, 165, 116, 0.15);
  --accent-cyan: #5eead4;
  --accent-cyan-glow: rgba(94, 234, 212, 0.12);
  --border-color: #27272a;
  --border-hover: #3f3f46;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 8px 30px rgba(212, 165, 116, 0.15);
  --gradient-hero: radial-gradient(ellipse at 20% 50%, rgba(212, 165, 116, 0.08) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 30%, rgba(94, 234, 212, 0.06) 0%, transparent 50%);
  --grain-opacity: 0.04;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  padding-left: var(--sidebar-width);
  transition: background var(--transition), color var(--transition), padding-left var(--transition);
}

::selection {
  background: var(--accent-gold);
  color: var(--bg-primary);
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-gold);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ===== FILM GRAIN OVERLAY ===== */
.film-grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9998;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grainShift 0.5s steps(4) infinite;
}

@keyframes grainShift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2px, 1px); }
  50% { transform: translate(1px, -2px); }
  75% { transform: translate(-1px, 2px); }
  100% { transform: translate(2px, -1px); }
}

/* ===== LOADING SCREEN ===== */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 2rem;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-text {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.5em;
  color: var(--text-primary);
  opacity: 0;
  animation: fadeInUp 1s ease 0.3s forwards;
}

.loader-bar {
  width: 200px;
  height: 1px;
  background: var(--border-color);
  position: relative;
  overflow: hidden;
}

.loader-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: var(--accent-gold);
  transform: translateX(-100%);
  animation: loadProgress 1.5s ease 0.5s forwards;
}

@keyframes loadProgress {
  to { transform: translateX(0); }
}

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

/* ===== SIDEBAR LAYOUT ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  padding: 2rem 0 1.5rem;
  background: var(--bg-overlay);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-color);
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.sidebar-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  cursor: pointer;
  text-align: center;
  padding: 0 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1rem;
}

.sidebar-logo span {
  color: var(--accent-gold);
}

.sidebar-footer {
  margin-top: auto;
  display: flex;
  justify-content: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: rotate(180deg);
}

/* Mobile toggle */
.sidebar-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1001;
  background: var(--bg-overlay);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.sidebar-mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
}

.sidebar-mobile-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.sidebar-mobile-toggle.open span:nth-child(2) {
  opacity: 0;
}
.sidebar-mobile-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== LINE SIDEBAR (ported from React Bits, macaron themed) ===== */
.line-sidebar {
  --ls-accent: var(--accent-gold);
  --ls-text: var(--text-secondary);
  --ls-marker: var(--text-muted);
  --ls-marker-length: 36px;
  --ls-marker-gap: 8px;
  --ls-tick-scale: 0.4;
  --ls-max-shift: 20px;
  --ls-item-gap: 14px;
  --ls-font-size: 0.9rem;
  --ls-smoothing: 100ms;

  position: relative;
  display: flex;
  justify-content: flex-start;
  flex: 1;
  overflow-y: auto;
}

.line-sidebar--markers {
  padding-left: calc(var(--ls-marker-length) + var(--ls-marker-gap) + 1rem);
}

.line-sidebar__list {
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  display: flex;
  flex-direction: column;
  gap: var(--ls-item-gap);
}

/* --effect (0..1) is driven per item by a rAF lerp in JS */
.line-sidebar__item {
  position: relative;
  cursor: pointer;
}

.line-sidebar__item::before {
  content: '';
  position: absolute;
  inset: -6px -48px;
}

.line-sidebar__label {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  font-size: var(--ls-font-size);
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: color-mix(in srgb, var(--ls-accent) calc(var(--effect, 0) * 100%), var(--ls-text));
  transform: translateX(calc(var(--effect, 0) * var(--ls-max-shift)));
}

.line-sidebar__index {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  margin-right: 0.6rem;
  font-size: 0.8em;
  opacity: calc(0.45 + var(--effect, 0) * 0.55);
}

.line-sidebar__marker {
  position: absolute;
  top: 50%;
  left: calc(-1 * var(--ls-marker-length) - var(--ls-marker-gap));
  height: 1px;
  width: var(--ls-marker-length);
  background-color: color-mix(in srgb, var(--ls-accent) calc(var(--effect, 0) * 100%), var(--ls-marker));
  transform-origin: left center;
  transform: translateY(-50%) scaleX(calc(0.6 + var(--effect, 0) * 0.5));
}

/* Active item marker — always full accent */
.line-sidebar__item[aria-current="true"] .line-sidebar__marker {
  background-color: var(--ls-accent);
  transform: translateY(-50%) scaleX(1.1);
  height: 2px;
}

.line-sidebar__item[aria-current="true"] .line-sidebar__label {
  color: var(--ls-accent);
  font-weight: 600;
}

.line-sidebar__item[aria-current="true"] .line-sidebar__index {
  opacity: 1;
}

/* Short static tick centered in the gap between two menu items */
.line-sidebar--markers .line-sidebar__item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: calc(100% + var(--ls-item-gap) / 2);
  left: calc(-1 * var(--ls-marker-length) - var(--ls-marker-gap));
  height: 1px;
  width: calc(var(--ls-marker-length) * var(--ls-tick-scale));
  background-color: var(--ls-marker);
  opacity: 0.4;
  transform: translateY(-50%);
}

/* When enabled, the in-between ticks grow with cursor proximity too */
.line-sidebar--scale-tick .line-sidebar__item:not(:last-child)::after {
  transform-origin: left center;
  transform: translateY(-50%) scaleX(calc(0.6 + var(--effect, 0) * 0.6));
}

/* ===== HERO SECTION ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
  cursor: default;
}

#antigravity-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 1;
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
  pointer-events: none;
  display: none; /* replaced by Three.js Antigravity canvas */
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--accent-gold);
  border-radius: 50%;
  opacity: 0;
  animation: floatParticle 8s infinite ease-in-out;
}

@keyframes floatParticle {
  0%, 100% { opacity: 0; transform: translateY(0) translateX(0); }
  10% { opacity: 0.5; }
  90% { opacity: 0.2; }
  50% { transform: translateY(-100px) translateX(30px); }
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 2rem;
  max-width: 800px;
}

.hero-tag {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeInUp 0.8s ease 0.3s forwards;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeInUp 1s ease 0.5s forwards;
}

.hero-name .accent {
  color: var(--accent-gold);
  font-style: italic;
}

.hero-role {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  min-height: 1.5em;
  opacity: 0;
  animation: fadeInUp 1s ease 0.8s forwards;
}

.hero-role .cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent-gold);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 0.8s infinite;
}

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

.hero-cta {
  margin-top: 2.5rem;
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  opacity: 0;
  animation: fadeInUp 1s ease 1.2s forwards;
}

.btn {
  padding: 0.9rem 2rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  background: transparent;
  color: var(--text-primary);
}

.btn-primary {
  background: var(--accent-gold);
  color: var(--bg-primary);
  border-color: var(--accent-gold);
}

.btn-primary:hover {
  background: transparent;
  color: var(--accent-gold);
  box-shadow: var(--shadow-gold);
}

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

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  animation: fadeInUp 1s ease 1.5s forwards;
}

.scroll-indicator span {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent-gold), var(--accent-cyan), transparent);
  animation: scrollDown 2s ease infinite;
}

@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== SECTION COMMON ===== */
section {
  padding: 7rem 3rem;
  position: relative;
}

.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-header {
  margin-bottom: 4rem;
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
}

.section-number {
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--accent-gold);
  font-weight: 400;
  letter-spacing: 0.1em;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.section-title .accent {
  color: var(--accent-gold);
  font-style: italic;
}

.section-line {
  flex: 1;
  height: 1px;
  background: var(--border-color);
}

/* ===== ABOUT SECTION ===== */
#about {
  background: var(--bg-secondary);
}

#skills {
  background: linear-gradient(180deg, var(--bg-primary) 0%, #FFF0F5 30%, #FFF0F5 70%, var(--bg-primary) 100%);
}

#experience {
  background: var(--bg-secondary);
}

#portfolio {
  background: var(--bg-primary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 1.5rem;
}

.about-text .highlight {
  color: var(--accent-gold);
  font-weight: 500;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-cyan));
  border-radius: 3px 3px 0 0;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--accent-gold);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.education-card {
  grid-column: 1 / -1;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  transition: all var(--transition);
}

.education-card:hover {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-gold);
}

.edu-icon {
  width: 50px;
  height: 50px;
  border: 1px solid var(--accent-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent-gold);
  flex-shrink: 0;
  background: var(--accent-gold-glow);
}

.edu-info h4 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.edu-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.edu-info .edu-meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.edu-info .edu-meta span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* ===== SKILLS SECTION ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all var(--transition);
}

.skill-category:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.skill-category-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--accent-gold-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.skill-category-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.skill-bar {
  margin-bottom: 1rem;
}

.skill-bar:last-child {
  margin-bottom: 0;
}

.skill-bar-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.skill-bar-name {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.skill-bar-percent {
  font-size: 0.8rem;
  color: var(--accent-gold);
  font-weight: 500;
}

.skill-bar-track {
  height: 6px;
  background: var(--bg-secondary);
  border-radius: 3px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-cyan));
  border-radius: 3px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  padding: 0.4rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  cursor: default;
}

.skill-tag:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: var(--accent-gold-glow);
  transform: translateY(-2px);
}

/* ===== EXPERIENCE SECTION ===== */
#experience {
  background: var(--bg-secondary);
}

.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-bottom: 3rem;
}

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

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 0.3rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent-gold);
  transition: all var(--transition);
}

.timeline-item:hover .timeline-dot {
  background: var(--accent-gold);
  box-shadow: 0 0 0 6px var(--accent-gold-glow);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all var(--transition);
}

.timeline-item:hover .timeline-card {
  border-color: var(--border-hover);
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.timeline-company {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.timeline-position {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

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

.timeline-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding-left: 1.2rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.timeline-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-gold);
}

.timeline-achievements {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.timeline-achievements strong {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.5rem;
}

.timeline-achievements p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.portfolio-tab {
  padding: 0.6rem 1.5rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.05em;
}

.portfolio-tab:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.portfolio-tab.active {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  color: var(--bg-primary);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  overflow: hidden;
  transition: max-height 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.portfolio-grid.collapsed {
  max-height: var(--portfolio-row-height, 240px);
}

.portfolio-grid.expanded {
  max-height: none;
}

.portfolio-item.hidden-item {
  opacity: 0;
  transform: translateY(30px) scale(0.95);
  pointer-events: none;
  position: absolute;
  visibility: hidden;
}

.portfolio-item.revealing-item {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
  position: relative;
  visibility: visible;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

/* ===== PORTFOLIO EXPAND BUTTON ===== */
.portfolio-expand-wrap {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.portfolio-expand-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 2.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  color: var(--text-secondary);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.portfolio-expand-btn::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-gold);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.portfolio-expand-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.portfolio-expand-btn:hover::before {
  transform: scaleX(1);
}

.portfolio-expand-btn.expanded-state {
  background: var(--accent-gold-glow);
  border-color: var(--accent-gold);
}

.expand-count {
  font-size: 0.75rem;
  color: var(--accent-gold);
  background: var(--accent-gold-glow);
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  letter-spacing: 0.05em;
}

.expand-arrow {
  font-size: 1rem;
  transition: transform 0.4s ease;
}

.portfolio-expand-btn.expanded-state .expand-arrow {
  transform: rotate(180deg);
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  aspect-ratio: 16 / 9;
  background: var(--bg-card);
  transition: all var(--transition);
}

.portfolio-item:hover {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover img {
  transform: scale(1.08);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(60, 40, 50, 0.85) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 1.2rem;
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: 12px;
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-overlay h4 {
  font-size: 0.9rem;
  color: #fff;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.portfolio-overlay span {
  font-size: 0.75rem;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ===== VIDEO SECTION ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.video-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  cursor: pointer;
  aspect-ratio: 16 / 9;
  background: var(--bg-card);
  transition: all var(--transition);
}

.video-card:hover {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.video-thumbnail {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.video-thumbnail::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.6) 100%);
  z-index: 1;
}

.video-play-btn {
  position: absolute;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(232, 164, 200, 0.25);
  backdrop-filter: blur(10px);
  border: 2px solid rgba(232, 164, 200, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: all var(--transition);
}

.video-card:hover .video-play-btn {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
  transform: scale(1.1);
  box-shadow: 0 0 20px var(--accent-gold-glow);
}

.video-play-btn::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 14px solid #fff;
  border-top: 9px solid transparent;
  border-bottom: 9px solid transparent;
  margin-left: 4px;
}

.video-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1rem;
  background: linear-gradient(to top, rgba(60, 40, 50, 0.8), transparent);
  z-index: 2;
  border-radius: 0 0 12px 12px;
}

.video-info h4 {
  font-size: 0.9rem;
  color: #fff;
  font-weight: 500;
}

.video-info span {
  font-size: 0.75rem;
  color: var(--accent-gold);
}

/* ===== GRADUATION PORTFOLIO ===== */
#graduation {
  text-align: center;
}

/* ===== GRADUATION PDF VIEWER ===== */
.graduation-viewer {
  max-width: 640px;
  margin: 0 auto;
}

.graduation-page-viewer {
  background: var(--bg-card);
  border-radius: 18px;
  overflow: hidden;
  /* Border & shadow are now handled by BorderGlow */
  position: relative;
}

.graduation-page-wrapper {
  width: 100%;
  aspect-ratio: 960 / 540;
  overflow: hidden;
  background: #1a1a1a;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-in;
  position: relative;
}

.graduation-page-wrapper:active {
  cursor: grabbing;
}

.graduation-page-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.35s ease, transform 0.35s ease;
  user-select: none;
  -webkit-user-drag: none;
}

.graduation-page-wrapper img.switching {
  opacity: 0.25;
  transform: scale(0.985);
}

/* Hover hint overlay on the page */
.graduation-page-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(232,164,200,0.0), rgba(168,216,234,0.0));
  transition: background 0.4s ease;
  pointer-events: none;
  z-index: 1;
}
.graduation-page-wrapper:hover::after {
  background: linear-gradient(135deg, rgba(232,164,200,0.08), rgba(168,216,234,0.08));
}

/* ── Page controls (floating capsule bar) ── */
.graduation-page-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.85rem 1.5rem;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  position: relative;
}

.graduation-nav-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(60,50,40,0.05);
  flex-shrink: 0;
}

.graduation-nav-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
  color: #fff;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(232,164,200,0.35);
}

.graduation-nav-btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(232,164,200,0.25);
}

.graduation-nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.graduation-page-indicator {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  min-width: 76px;
  text-align: center;
  padding: 0.4rem 0.9rem;
  border-radius: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

/* ── Thumbnail strip ── */
.graduation-thumb-strip {
  margin-top: 1.1rem;
  overflow: hidden;
  position: relative;
}

/* edge fade masks */
.graduation-thumb-strip::before,
.graduation-thumb-strip::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 40px;
  z-index: 2;
  pointer-events: none;
}
.graduation-thumb-strip::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-primary), transparent);
}
.graduation-thumb-strip::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-primary), transparent);
}

.graduation-thumb-track {
  display: flex;
  gap: 8px;
  padding: 0.5rem 0.5rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.graduation-thumb-track::-webkit-scrollbar {
  display: none;
}

.graduation-thumb-item {
  width: 84px;
  aspect-ratio: 960 / 540;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  flex-shrink: 0;
  background: #1a1a1a;
  position: relative;
  opacity: 0.65;
}

.graduation-thumb-item:hover {
  border-color: var(--accent-gold);
  transform: translateY(-3px);
  opacity: 1;
  box-shadow: 0 6px 16px rgba(232,164,200,0.25);
}

.graduation-thumb-item.active {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 2px var(--accent-gold-glow), 0 6px 16px rgba(232,164,200,0.3);
  opacity: 1;
  transform: translateY(-2px);
}

.graduation-thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.graduation-thumb-item .thumb-number {
  position: absolute;
  bottom: 3px;
  right: 4px;
  font-size: 0.58rem;
  font-weight: 600;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: #fff;
  background: rgba(0,0,0,0.65);
  padding: 1px 5px;
  border-radius: 4px;
  line-height: 1.2;
  backdrop-filter: blur(4px);
}

/* ── Action buttons (fullscreen + download) ── */
.graduation-actions {
  display: flex;
  gap: 0.9rem;
  justify-content: center;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}

.graduation-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.8rem;
  border-radius: 30px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  cursor: pointer;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  border: none;
}

/* shine sweep on hover */
.graduation-action-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 80%;
  height: 100%;
  background: linear-gradient(110deg, transparent, rgba(255,255,255,0.35), transparent);
  transition: left 0.6s ease;
  pointer-events: none;
}
.graduation-action-btn:hover::before {
  left: 130%;
}

.graduation-fullscreen-btn {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1.5px solid var(--border-color);
  box-shadow: 0 2px 10px rgba(60,50,40,0.06);
}

.graduation-fullscreen-btn:hover {
  background: linear-gradient(135deg, var(--accent-gold), #f0b8d4);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(232,164,200,0.4);
}

.graduation-fullscreen-btn:active {
  transform: translateY(-1px);
}

.graduation-download-btn {
  background: linear-gradient(135deg, var(--accent-cyan), #bde6f0);
  color: #fff;
  border: 1.5px solid transparent;
  box-shadow: 0 4px 14px rgba(168,216,234,0.35);
}

.graduation-download-btn:hover {
  background: linear-gradient(135deg, #8fcde4, var(--accent-cyan));
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(168,216,234,0.5);
}

.graduation-download-btn:active {
  transform: translateY(-1px);
}

/* ── Fullscreen modal ── */
.graduation-fullscreen-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(15,12,18,0.94);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  animation: gradFadeIn 0.3s ease;
  padding: 2rem 1rem;
}

.graduation-fullscreen-modal.graduation-modal-closing {
  animation: gradFadeOut 0.3s ease forwards;
}

@keyframes gradFadeIn {
  from { opacity: 0; backdrop-filter: blur(0); }
  to   { opacity: 1; }
}
@keyframes gradFadeOut {
  from { opacity: 1; }
  to   { opacity: 0; }
}

.graduation-modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  width: 46px;
  height: 46px;
  border: none;
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  z-index: 10;
  backdrop-filter: blur(6px);
}

.graduation-modal-close:hover {
  background: rgba(255,255,255,0.22);
  transform: rotate(90deg) scale(1.05);
}

/* Modal stage: image + side nav arrows */
.graduation-modal-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 1200px;
  gap: 1rem;
}

.graduation-modal-page {
  max-width: min(72vw, 1100px);
  max-height: 82vh;
  object-fit: contain;
  border-radius: 10px;
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.graduation-modal-page.switching {
  opacity: 0.2;
  transform: scale(0.98);
}

/* Side navigation arrows (modal) */
.graduation-modal-nav {
  width: 52px;
  height: 52px;
  border: none;
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  flex-shrink: 0;
  backdrop-filter: blur(6px);
}

.graduation-modal-nav:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-cyan));
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(232,164,200,0.4);
}

.graduation-modal-nav:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

/* Modal controls (page indicator pill) */
.graduation-modal-controls {
  margin-top: 1.25rem;
  padding: 0.5rem 1.4rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  backdrop-filter: blur(6px);
}

.graduation-modal-indicator {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.85);
}
.graduation-modal-indicator em {
  font-style: normal;
  color: rgba(255,255,255,0.4);
  margin: 0 0.35rem;
}

/* ===== BORDERGLOW COMPONENT (Vanilla JS port) ===== */
.border-glow-card {
  --edge-proximity: 0;
  --cursor-angle: 45deg;
  --edge-sensitivity: 30;
  --color-sensitivity: calc(var(--edge-sensitivity) + 20);
  --border-radius: 18px;
  --glow-padding: 30px;
  --cone-spread: 25;
  --fill-opacity: 0.5;

  position: relative;
  border-radius: var(--border-radius);
  isolation: isolate;
  transform: translate3d(0, 0, 0.01px);
  display: grid;
  border: 1px solid rgb(0 0 0 / 8%);
  background: var(--card-bg, var(--bg-card));
  overflow: visible;
  box-shadow:
    rgba(60, 50, 40, 0.04) 0px 1px 2px,
    rgba(60, 50, 40, 0.04) 0px 2px 4px,
    rgba(60, 50, 40, 0.04) 0px 4px 8px,
    rgba(60, 50, 40, 0.03) 0px 8px 16px,
    rgba(60, 50, 40, 0.02) 0px 16px 32px;
}

/* Gradient border mesh – appears when cursor is near edges */
.border-glow-card::before,
.border-glow-card::after,
.border-glow-card > .edge-light {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  transition: opacity 0.25s ease-out;
  z-index: -1;
}

.border-glow-card:not(:hover):not(.sweep-active)::before,
.border-glow-card:not(:hover):not(.sweep-active)::after,
.border-glow-card:not(:hover):not(.sweep-active) > .edge-light {
  opacity: 0;
  transition: opacity 0.75s ease-in-out;
}

/* colored mesh-gradient border */
.border-glow-card::before {
  border: 1.5px solid transparent;
  background:
    linear-gradient(var(--card-bg, #FFFFFF) 0 100%) padding-box,
    linear-gradient(rgb(255 255 255 / 0%) 0% 100%) border-box,
    var(--gradient-one) border-box,
    var(--gradient-two) border-box,
    var(--gradient-three) border-box,
    var(--gradient-four) border-box,
    var(--gradient-five) border-box,
    var(--gradient-six) border-box,
    var(--gradient-seven) border-box,
    var(--gradient-base) border-box;

  opacity: calc((var(--edge-proximity) - var(--color-sensitivity)) / (100 - var(--color-sensitivity)));

  mask-image:
    conic-gradient(
      from var(--cursor-angle) at center,
      black calc(var(--cone-spread) * 1%),
      transparent calc((var(--cone-spread) + 15) * 1%),
      transparent calc((100 - var(--cone-spread) - 15) * 1%),
      black calc((100 - var(--cone-spread)) * 1%)
    );
}

/* colored mesh-gradient background fill near edges */
.border-glow-card::after {
  border: 1px solid transparent;
  background:
    var(--gradient-one) padding-box,
    var(--gradient-two) padding-box,
    var(--gradient-three) padding-box,
    var(--gradient-four) padding-box,
    var(--gradient-five) padding-box,
    var(--gradient-six) padding-box,
    var(--gradient-seven) padding-box,
    var(--gradient-base) padding-box;

  mask-image:
    linear-gradient(to bottom, black, black),
    radial-gradient(ellipse at 50% 50%, black 40%, transparent 65%),
    radial-gradient(ellipse at 66% 66%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 66% 33%, black 5%, transparent 40%),
    radial-gradient(ellipse at 33% 66%, black 5%, transparent 40%),
    conic-gradient(from var(--cursor-angle) at center, transparent 5%, black 15%, black 85%, transparent 95%);

  mask-composite: subtract, add, add, add, add, add;
  opacity: calc(var(--fill-opacity) * (var(--edge-proximity) - var(--color-sensitivity)) / (100 - var(--color-sensitivity)));
  mix-blend-mode: soft-light;
}

/* outer glow layer */
.border-glow-card > .edge-light {
  inset: calc(var(--glow-padding) * -1);
  pointer-events: none;
  z-index: 1;

  mask-image:
    conic-gradient(
      from var(--cursor-angle) at center, black 2.5%, transparent 10%, transparent 90%, black 97.5%
    );

  opacity: calc((var(--edge-proximity) - var(--edge-sensitivity)) / (100 - var(--edge-sensitivity)));
  mix-blend-mode: plus-lighter;
}

.border-glow-card > .edge-light::before {
  content: "";
  position: absolute;
  inset: var(--glow-padding);
  border-radius: inherit;
  box-shadow:
    inset 0 0 0 1px var(--glow-color),
    inset 0 0 1px 0 var(--glow-color-60),
    inset 0 0 3px 0 var(--glow-color-50),
    inset 0 0 6px 0 var(--glow-color-40),
    inset 0 0 15px 0 var(--glow-color-30),
    inset 0 0 25px 2px var(--glow-color-20),
    inset 0 0 50px 2px var(--glow-color-10),
    0 0 1px 0 var(--glow-color-60),
    0 0 3px 0 var(--glow-color-50),
    0 0 6px 0 var(--glow-color-40),
    0 0 15px 0 var(--glow-color-30),
    0 0 25px 2px var(--glow-color-20),
    0 0 50px 2px var(--glow-color-10);
}

.border-glow-inner {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  border-radius: inherit;
  z-index: 1;
}

/* ===== CONTACT SECTION ===== */
#contact {
  background: linear-gradient(180deg, var(--bg-primary) 0%, #FFF0F5 30%, #FFF0F5 70%, var(--bg-primary) 100%);
  text-align: center;
}

.contact-content {
  max-width: 600px;
  margin: 0 auto;
}

.contact-content h3 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.contact-content > p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.contact-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem 1rem;
  transition: all var(--transition);
  text-align: center;
}

.contact-item:hover {
  border-color: var(--accent-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}

.contact-item-icon {
  font-size: 1.5rem;
  color: var(--accent-gold);
  margin-bottom: 0.8rem;
}

.contact-item-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.contact-item-value {
  font-size: 0.9rem;
  color: var(--text-primary);
  word-break: break-all;
}

/* ===== FOOTER ===== */
footer {
  padding: 3rem;
  text-align: center;
  border-top: 1px solid var(--border-color);
  background: var(--bg-primary);
}

footer p {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

footer .footer-name {
  color: var(--accent-gold);
}

/* ===== LIGHTBOX ===== */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(10px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-img {
  max-width: 90%;
  max-height: 85vh;
  object-fit: contain;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transform: scale(0.9);
  transition: transform var(--transition);
}

.lightbox.active .lightbox-img {
  transform: scale(1);
}

.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.lightbox-close:hover {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  transition: all var(--transition);
}

.lightbox-nav:hover {
  background: var(--accent-gold);
  border-color: var(--accent-gold);
}

.lightbox-prev { left: 2rem; }
.lightbox-next { right: 2rem; }

.lightbox-caption {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

/* ===== VIDEO MODAL ===== */
.video-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(10px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.video-modal.active {
  opacity: 1;
  visibility: visible;
}

.video-modal video {
  max-width: 90%;
  max-height: 85vh;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 968px) {
  body {
    padding-left: 0;
  }

  .sidebar {
    transform: translateX(-100%);
    width: 240px;
    z-index: 1002;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-mobile-toggle {
    display: flex;
  }

  section { padding: 5rem 1.5rem; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }

  .portfolio-expand-btn {
    padding: 0.7rem 1.5rem;
    font-size: 0.8rem;
  }

  .video-grid {
    grid-template-columns: 1fr;
  }

  .lightbox-nav {
    width: 40px;
    height: 40px;
  }
  .lightbox-prev { left: 0.5rem; }
  .lightbox-next { right: 0.5rem; }
}

@media (max-width: 480px) {
  .hero-name { font-size: 2.5rem; }
  .hero-cta { flex-direction: column; align-items: center; }
  .about-stats { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-expand-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.75rem;
  }
  .graduation-thumb-item { width: 62px; }
  .graduation-actions { gap: 0.6rem; }
  .graduation-action-btn { padding: 0.7rem 1.3rem; font-size: 0.8rem; }
  .graduation-nav-btn { width: 40px; height: 40px; }
  .graduation-page-indicator { min-width: 64px; font-size: 0.72rem; padding: 0.35rem 0.7rem; }
  .graduation-modal-stage { gap: 0.4rem; }
  .graduation-modal-nav { width: 42px; height: 42px; }
  .graduation-modal-page { max-width: 88vw; }
}