*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { overflow-x: hidden; }

:root {
  --bg: #0c0b0f;
  --bg-elevated: #15141a;
  --bg-card: #1a1920;
  --text: #e8e4dd;
  --text-muted: #8a8690;
  --accent: #d4a574;
  --accent-bright: #e8c4a0;
  --border: #2a2830;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'DM Sans', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* --- Grain overlay --- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* --- Nav --- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(12, 11, 15, 0.7);
  border-bottom: 1px solid var(--border);
  transition: transform 0.4s ease;
}

nav .logo {
  font-family: var(--serif);
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

nav ul {
  list-style: none;
  display: flex;
  gap: 2.5rem;
}

nav ul a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.3s;
  position: relative;
}

nav ul a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s;
}

nav ul a:hover { color: var(--text); }
nav ul a:hover::after { width: 100%; }

/* --- Language Switcher --- */
nav ul .lang-switch {
  color: var(--accent);
  font-weight: 500;
  border: 1px solid rgba(212, 165, 116, 0.3);
  padding: 0.15rem 0.6rem;
}

nav ul .lang-switch:hover {
  border-color: var(--accent);
}

nav ul .lang-switch::after {
  display: none;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 3rem 4rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 165, 116, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-text { z-index: 1; }

.hero-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 440px;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: var(--bg);
  padding: 0.85rem 2rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-primary:hover {
  background: var(--accent-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212, 165, 116, 0.2);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  padding: 0.85rem 1.5rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  opacity: 0;
  animation: fadeIn 1s 0.6s forwards;
}

.hero-photo-wrap {
  position: relative;
  width: 340px;
  height: 420px;
}

.hero-photo-wrap::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 1px solid var(--border);
  transform: rotate(3deg);
  transition: transform 0.5s;
}

.hero-photo-wrap:hover::before { transform: rotate(0deg); }

.hero-photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(30%) contrast(1.05);
  transition: filter 0.5s;
}

.hero-photo-wrap:hover img { filter: grayscale(0%) contrast(1); }

.hero-photo-accent {
  position: absolute;
  bottom: -20px;
  right: -30px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 4rem;
  color: var(--accent);
  opacity: 0.15;
  line-height: 1;
  user-select: none;
}

/* --- Sections --- */
section {
  padding: 6rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

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

.section-number {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

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

/* --- About --- */
.about-prose {
  max-width: 720px;
  font-size: 1.08rem;
  color: var(--text-muted);
  line-height: 2;
}

.about-prose p { margin-bottom: 1.5rem; }
.about-prose p:last-child { margin-bottom: 0; }

.about-prose strong { color: var(--text); font-weight: 500; }

.about-prose a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 165, 116, 0.3);
  transition: border-color 0.3s, color 0.3s;
}

.about-prose a:hover {
  color: var(--accent-bright);
  border-bottom-color: var(--accent);
}

/* --- Experience --- */
.timeline { position: relative; }

.timeline::before {
  content: '';
  position: absolute;
  left: 120px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.timeline-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 3rem;
  padding: 2.5rem 0;
  position: relative;
  transition: opacity 0.3s;
}

.timeline-item + .timeline-item { border-top: none; }

.timeline-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-top: 0.3rem;
  text-align: right;
  letter-spacing: 0.02em;
}

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

.timeline-content::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 10px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--accent);
  background: var(--bg);
  border-radius: 50%;
  transition: background 0.3s;
}

.timeline-item:hover .timeline-content::before {
  background: var(--accent);
}

.timeline-role {
  font-family: var(--serif);
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

.timeline-company {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.timeline-location {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 1rem;
}

.timeline-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.8;
  max-width: 560px;
}

.timeline-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.tech-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-card);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--border);
  letter-spacing: 0.03em;
  transition: all 0.3s;
}

.tech-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Education --- */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.4s;
}

.edu-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.edu-card:hover { border-color: rgba(212, 165, 116, 0.3); transform: translateY(-4px); }
.edu-card:hover::before { opacity: 1; }

.edu-degree {
  font-family: var(--serif);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.edu-school {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.edu-year {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.edu-detail {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

.award-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: rgba(212, 165, 116, 0.08);
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(212, 165, 116, 0.2);
  letter-spacing: 0.05em;
}

/* --- Skills --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.skill-group h3 {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.skill-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  transition: color 0.3s;
}

.skill-item:hover { color: var(--text); }

.skill-dot {
  display: flex;
  gap: 4px;
}

.skill-dot span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
}

.skill-dot span.active { background: var(--accent); }

/* --- Featured / Media --- */
.featured-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
  display: block;
}

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

.video-embed .play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.35);
  transition: background 0.3s;
}

.video-embed:hover .play-btn {
  background: rgba(0,0,0,0.15);
}

.video-embed .play-btn svg {
  width: 64px;
  height: 64px;
  fill: #fff;
  opacity: 0.85;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5));
  transition: opacity 0.3s, transform 0.3s;
}

.video-embed:hover .play-btn svg {
  opacity: 1;
  transform: scale(1.1);
}

.featured-text h3 {
  font-family: var(--serif);
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.featured-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.featured-badges {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: rgba(212, 165, 116, 0.08);
  padding: 0.4rem 0.85rem;
  border: 1px solid rgba(212, 165, 116, 0.2);
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: all 0.3s;
}

.badge:hover {
  background: rgba(212, 165, 116, 0.15);
  border-color: var(--accent);
}

.badge svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

@media (max-width: 900px) {
  .featured-grid { grid-template-columns: 1fr; }
}

/* --- Contact --- */
.contact-section {
  text-align: center;
  padding: 8rem 3rem;
  max-width: 700px;
  margin: 0 auto;
}

.contact-section .section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 1.5rem;
}

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

.contact-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 3rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.3s;
  padding: 0.5rem 0;
  border-bottom: 1px solid transparent;
}

.contact-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.contact-link svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

/* --- Footer --- */
footer {
  text-align: center;
  padding: 3rem;
  border-top: 1px solid var(--border);
}

footer p {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* --- Animations --- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- Mobile nav toggle --- */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text);
  margin: 6px 0;
  transition: all 0.3s;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  nav { padding: 1rem 1.5rem; }

  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem;
    gap: 1rem;
  }

  nav ul.active { display: flex; }

  .nav-toggle { display: block; }

  .hero { padding: 7rem 1.5rem 3rem; }
  .hero-inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { order: -1; }
  .hero-photo-wrap { width: 250px; height: 310px; }

  section { padding: 4rem 1.5rem; }

  .about-prose { font-size: 1rem; line-height: 1.9; }
  .edu-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }

  .timeline::before { left: 0; }
  .timeline-item { grid-template-columns: 1fr; gap: 0.5rem; }
  .timeline-date { text-align: left; padding-left: 1.5rem; }
  .timeline-content { padding-left: 1.5rem; }
  .timeline-content::before { left: -7px; }
}

@media (max-width: 500px) {
  .hero h1 { font-size: 2.4rem; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .contact-links { flex-direction: column; align-items: center; }
}