:root {
  --bg: #07111f;
  --bg-2: #0a1528;
  --panel: rgba(12, 22, 38, 0.78);
  --panel-strong: rgba(10, 18, 32, 0.92);
  --text: #e7eefc;
  --muted: #9cafcf;
  --line: rgba(255,255,255,0.10);
  --line-strong: rgba(255,255,255,0.18);
  --accent: #4f46e5;
  --accent-2: #06b6d4;
  --accent-3: #22c55e;
  --shadow: 0 24px 80px rgba(0,0,0,0.45);
  --radius: 24px;
  --radius-sm: 18px;
  --max: 1180px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(79,70,229,0.26), transparent 32%),
    radial-gradient(circle at 85% 15%, rgba(6,182,212,0.18), transparent 24%),
    radial-gradient(circle at 50% 100%, rgba(34,197,94,0.12), transparent 28%),
    linear-gradient(180deg, #06101d 0%, #091120 48%, #040810 100%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.85), rgba(0,0,0,0.28));
  pointer-events: none;
  z-index: 0;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 0.12rem 0.38rem;
  border-radius: 8px;
}
.container {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.progress-bar {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform-origin: left center;
  transform: scaleX(0);
  z-index: 60;
}
.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 12, 22, 0.62);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 1rem;
}
.brand { display: flex; flex-direction: column; gap: 0.1rem; }
.brand strong { font-size: 1.05rem; letter-spacing: 0.04em; }
.brand span { color: var(--muted); font-size: 0.88rem; }
.nav-links { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.nav-links a {
  color: var(--muted);
  font-size: 0.96rem;
  transition: color 0.2s ease, transform 0.2s ease;
}
.nav-links a:hover, .nav-links a:focus-visible {
  color: var(--text);
  transform: translateY(-1px);
}
.button, .button-ghost, .button-inline, .slide-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.95rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.96rem;
  border: 1px solid transparent;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}
.button {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  box-shadow: 0 18px 50px rgba(79,70,229,0.30);
}
.button-ghost, .button-inline, .slide-button {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
  color: var(--text);
}
.button:hover, .button-ghost:hover, .button-inline:hover, .slide-button:hover {
  transform: translateY(-2px);
}
.hero {
  padding: 5.5rem 0 3rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  color: #c7d8f7;
  font-size: 0.84rem;
  margin-bottom: 1.15rem;
}
.eyebrow::before {
  content: "";
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  box-shadow: 0 0 18px rgba(6,182,212,0.7);
}
.hero h1 {
  font-size: clamp(2.9rem, 7vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.05em;
  margin-bottom: 1.2rem;
}
.gradient {
  background: linear-gradient(135deg, #ffffff 0%, #bcc4ff 38%, #8ce4f7 72%, #dbffea 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p { max-width: 64ch; font-size: 1.06rem; color: var(--muted); }
.hero-actions { margin-top: 1.8rem; display: flex; gap: 0.9rem; flex-wrap: wrap; }
.hero-metrics, .grid-2, .grid-3, .gallery-grid {
  display: grid;
  gap: 1rem;
}
.hero-metrics { margin-top: 2.3rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3, .gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.metric, .card, .project-card, .skill-card, .timeline-item, .contact-card, .edu-card,
.panel, .gallery-card, .summary-card, .protocol-card, .timeline-card, .viewer-shell {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(12px);
}
.metric, .card, .skill-card, .edu-card, .panel, .gallery-card, .summary-card, .protocol-card, .timeline-card {
  padding: 1.2rem;
}
.metric strong { display: block; font-size: 1.45rem; margin-bottom: 0.25rem; }
.metric span, .card p, .skill-card p, .timeline-content p, .edu-card p, .panel p, .gallery-card p,
.summary-card p, .protocol-card p, .timeline-card p, .kv div, li {
  color: var(--muted);
}
.hero-card {
  position: relative;
  padding: 1.2rem;
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: calc(var(--radius) + 6px);
  box-shadow: var(--shadow);
}
.section { padding: 2rem 0; }
.section-head { margin-bottom: 1.4rem; }
.section-head h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 0.3rem;
}
.section-head p { color: var(--muted); max-width: 64ch; }
.projects-grid, .education-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1rem;
}
.project-card, .timeline-item, .contact-card { padding: 1.2rem; }
.project-card {
  grid-column: span 4;
  min-height: 100%;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
}
.project-card.featured {
  grid-column: span 8;
  background: linear-gradient(180deg, rgba(79,70,229,0.18), rgba(15,23,42,0.84)), var(--panel-strong);
}
.project-card h3, .skill-card h3, .timeline-content h3, .edu-card h3, .panel h3,
.gallery-card h3, .summary-card h3, .protocol-card h3, .timeline-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.65rem;
}
.tag-row, .skill-tags, .project-links, .slide-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.tag {
  display: inline-flex;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: #dbe8ff;
  font-size: 0.82rem;
}
.project-links { margin-top: 1rem; }
.project-links a { font-size: 0.92rem; font-weight: 700; color: #d8e5ff; }
.skills-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.timeline { display: grid; gap: 1rem; }
.timeline-item { display: grid; grid-template-columns: 190px 1fr; gap: 1rem; }
.timeline-date { color: #b8c7e6; font-size: 0.92rem; font-weight: 700; }
.timeline-content ul, .list { margin-top: 0.75rem; padding-left: 1.1rem; display: grid; gap: 0.45rem; }
.edu-card { grid-column: span 4; }
.contact-card {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1rem;
  background: linear-gradient(180deg, rgba(6,182,212,0.12), rgba(10,18,32,0.85)), var(--panel-strong);
}
.contact-copy h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); line-height: 1; letter-spacing: -0.04em; margin-bottom: 0.7rem; }
.contact-meta { display: grid; gap: 0.9rem; }
.meta-box {
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}
.meta-box span { display: block; color: var(--muted); font-size: 0.82rem; margin-bottom: 0.35rem; }
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.viewer-shell { overflow: hidden; padding: 0; }
.viewer-top {
  padding: 0.95rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.dots { display: flex; gap: 0.38rem; }
.dots span { width: 0.68rem; height: 0.68rem; border-radius: 50%; background: rgba(255,255,255,0.22); }
.viewer-label { color: var(--muted); font-size: 0.88rem; }
.viewer-stage { min-height: 520px; background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01)); }
#openseadragon1 { width: 100%; height: 520px; background: #050a14; }
.viewer-controls {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: 1rem; border-top: 1px solid rgba(255,255,255,0.06);
}
.control-group { display: flex; gap: 0.55rem; flex-wrap: wrap; }
.control-pill {
  padding: 0.5rem 0.82rem;
  border-radius: 999px;
  font-size: 0.84rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: #dbe8ff;
}
.slide-button.is-active {
  background: linear-gradient(135deg, rgba(79,70,229,0.25), rgba(6,182,212,0.16));
  border-color: rgba(255,255,255,0.18);
}
.kv {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 0.65rem 1rem;
}
.kv strong { color: var(--text); }
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(4,8,16,0.9);
  display: none;
  place-items: center;
  padding: 2rem;
  z-index: 100;
}
.lightbox.is-open { display: grid; }
.lightbox img {
  max-width: min(100%, 1200px);
  max-height: 88vh;
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.lightbox-close { position: absolute; top: 1rem; right: 1rem; }
footer { padding: 1.6rem 0 3rem; color: var(--muted); font-size: 0.92rem; }
.footer-line {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.2rem;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.cf-analytics-note { margin-top: 0.8rem; font-size: 0.84rem; color: var(--muted); }
@media (max-width: 1080px) {
  .hero, .contact-card, .skills-grid, .grid-2, .grid-3, .gallery-grid { grid-template-columns: 1fr; }
  .project-card, .project-card.featured, .edu-card { grid-column: span 12; }
}
@media (max-width: 760px) {
  .nav { padding: 0.9rem 0; align-items: start; flex-direction: column; }
  .hero { padding-top: 3.6rem; grid-template-columns: 1fr; }
  .hero-metrics { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; }
  #openseadragon1, .viewer-stage { height: 360px; min-height: 360px; }
  .kv { grid-template-columns: 1fr; }
}