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

:root {
  --bg: #0a0c14;
  --bg-soft: #111520;
  --surface: rgba(129, 140, 248, 0.05);
  --border: rgba(148, 163, 255, 0.12);
  --border-hover: rgba(148, 163, 255, 0.28);
  --text: #e8eaf4;
  --muted: #9299b4;
  --faint: #5c637a;
  --a1: #818cf8;
  --a2: #22d3ee;
  --grad: linear-gradient(120deg, #a5b4fc 0%, #818cf8 45%, #22d3ee 100%);
  --accent-glow: rgba(129, 140, 248, 0.35);
  --nav-scrolled-bg: rgba(10, 12, 20, 0.78);
  --on-accent: #0a0c14;
  --max-w: 760px;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;
  --display: 'Space Grotesk', system-ui, sans-serif;
  --sans: 'Inter', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--a1); color: var(--on-accent); }

a { color: inherit; text-decoration: none; }

.spotlight {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(
    600px circle at var(--mx, 50%) var(--my, 0%),
    rgba(129, 140, 248, 0.14),
    transparent 60%
  );
  transition: background 0.2s ease-out;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

main, nav, footer { position: relative; z-index: 2; }

nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.25rem, 5vw, 3rem);
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}

nav.scrolled {
  background: var(--nav-scrolled-bg);
  backdrop-filter: blur(14px) saturate(140%);
  border-color: var(--border);
}

.nav-name {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.nav-name span { color: var(--a2); }

nav ul { list-style: none; display: flex; gap: 2.25rem; }

nav ul a {
  font-size: 0.875rem;
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s;
}
nav ul a:hover, nav ul a.active { color: var(--a1); }

main { max-width: var(--max-w); margin: 0 auto; padding: 0 clamp(1.25rem, 5vw, 2rem); }

section { padding: 7rem 0; }

.section-head {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--display);
  font-size: clamp(1.4rem, 4vw, 1.9rem);
  font-weight: 600;
  margin-bottom: 3rem;
  white-space: nowrap;
}
.section-head::after {
  display: none;
}

#hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: 8rem 0 4rem;
}

#projects { padding: 5rem 0 2rem; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
}
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--a2);
  box-shadow: 0 0 0 0 var(--accent-glow);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 var(--accent-glow); }
  70%  { box-shadow: 0 0 0 9px rgba(129, 140, 248, 0); }
  100% { box-shadow: 0 0 0 0 rgba(129, 140, 248, 0); }
}

#hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.8rem, 12vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 1.35rem;
}
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--muted);
  max-width: 34ch;
  line-height: 1.6;
  margin-bottom: 2.75rem;
}
.tagline em { color: var(--text); font-style: normal; }

.hero-meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.35rem;
  margin-bottom: 1.35rem;
}
.hero-meta li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: var(--muted);
}
.hero-meta svg { color: var(--a1); flex: none; }
.hero-meta strong { color: var(--text); font-weight: 600; }

.hero-bio {
  max-width: 52ch;
  margin-bottom: 1.5rem;
}
.hero-bio p {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.7;
}
.hero-bio p + p { margin-top: 1rem; }
.hero-bio em { color: var(--text); font-style: normal; }

.hero-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.8rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.btn:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.btn svg { transition: transform 0.2s; }
.btn:hover svg { transform: translateY(3px); }

.btn-primary {
  position: relative;
  border-color: transparent;
  background: var(--grad);
  color: var(--on-accent);
  font-weight: 500;
}
.btn-primary:hover { box-shadow: 0 8px 30px -8px rgba(129, 140, 248, 0.45); }

.btn-lg { padding: 1rem 2rem; font-size: 0.95rem; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 3.5rem;
  align-items: start;
}
.about-text p { color: var(--muted); }
.about-text p + p { margin-top: 1.1rem; }
.about-text strong, .about-text em { color: var(--text); font-style: normal; }

.skills h3 {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--faint);
  margin-bottom: 1.1rem;
}
.skill-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem 1rem;
}
.skill-list li {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text);
  padding-left: 1.1rem;
  position: relative;
}
.skill-list li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--a2);
}

.edu-card {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  transition: border-color 0.25s, transform 0.25s, background 0.25s;
}
.edu-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  background: var(--bg-soft);
}
.edu-icon {
  flex: none;
  width: 56px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  overflow: hidden;
}
.edu-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 7px;
}
.edu-main { flex: 1; min-width: 0; }
.edu-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.edu-head h3 {
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 600;
}
.edu-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--a2);
  white-space: nowrap;
}
.edu-degree {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0.45rem 0 1.2rem;
}
.edu-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}
.edu-tags li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.4rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text);
}
.edu-tags li span {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--a2);
}

.project-grid { display: flex; flex-direction: column; gap: 4.5rem; }

.project {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 2.75rem;
  align-items: center;
}
.project:nth-child(even) .project-body { order: -1; }

.project-media {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.project:hover .project-media {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.6);
}
.project-media video,
.project-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.5s, transform 0.4s;
}
.project-media.has-media video,
.project-media.has-media img { opacity: 1; }
.project:hover .project-media.has-media img,
.project:hover .project-media.has-media video { transform: scale(1.03); }

.media-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--muted);
  transition: opacity 0.4s;
  background:
    radial-gradient(120% 90% at 30% 20%, rgba(129, 140, 248, 0.22), transparent 60%),
    radial-gradient(120% 90% at 80% 90%, rgba(34, 211, 238, 0.12), transparent 60%),
    var(--bg-soft);
}
.media-placeholder[data-hue="1"] { background:
  radial-gradient(120% 90% at 25% 25%, rgba(129, 140, 248, 0.24), transparent 60%),
  radial-gradient(120% 90% at 85% 85%, rgba(165, 180, 252, 0.1), transparent 60%), var(--bg-soft); }
.media-placeholder[data-hue="2"] { background:
  radial-gradient(120% 90% at 75% 20%, rgba(34, 211, 238, 0.22), transparent 60%),
  radial-gradient(120% 90% at 20% 90%, rgba(129, 140, 248, 0.1), transparent 60%), var(--bg-soft); }
.media-placeholder[data-hue="3"] { background:
  radial-gradient(120% 90% at 30% 80%, rgba(192, 132, 252, 0.22), transparent 60%),
  radial-gradient(120% 90% at 80% 20%, rgba(34, 211, 238, 0.08), transparent 60%), var(--bg-soft); }
.media-placeholder[data-hue="4"] { background:
  radial-gradient(120% 90% at 50% 15%, rgba(45, 212, 191, 0.2), transparent 60%),
  radial-gradient(120% 90% at 50% 95%, rgba(129, 140, 248, 0.12), transparent 60%), var(--bg-soft); }
.media-placeholder span {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.project-media.has-media .media-placeholder { opacity: 0; }

.project-media .video-btn {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  color: var(--on-accent);
  background: radial-gradient(120% 120% at 50% 45%, rgba(0, 0, 0, 0.18), rgba(0, 0, 0, 0.02));
  transition: opacity 0.25s;
}
.project-media .video-btn::before {
  content: '';
  position: absolute;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 12px 34px -8px rgba(129, 140, 248, 0.4);
  transition: transform 0.2s;
}
.project-media .video-btn svg { position: relative; z-index: 1; margin-left: 3px; }
.project-media .video-btn:hover::before { transform: scale(1.08); }
.project-media.playing .video-btn { opacity: 0; pointer-events: none; }

.project-media.gallery { background: #eef0f8; }
.project-media.gallery .gallery-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 5%;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s ease;
}
.project-media.gallery .gallery-img.active {
  opacity: 1;
  pointer-events: auto;
  cursor: zoom-in;
}

.gallery-expand {
  position: absolute;
  top: 10px; right: 10px;
  z-index: 3;
  width: 30px; height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--text);
  background: rgba(10, 12, 20, 0.55);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.project:hover .project-media.gallery.has-media .gallery-expand { opacity: 1; }

.gallery-dots {
  position: absolute;
  left: 0; right: 0; bottom: 12px;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.25s;
}
.project-media.has-media .gallery-dots { opacity: 1; }
.gallery-dot {
  width: 6px; height: 6px;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: rgba(10, 12, 20, 0.32);
  cursor: pointer;
  transition: width 0.25s, background 0.25s;
}
.gallery-dot.active { width: 18px; background: var(--a1); }

.pnum {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--a2);
  margin-bottom: 0.7rem;
}
.project-body h3 {
  font-family: var(--display);
  font-size: clamp(1.3rem, 3.5vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.9rem;
  transition: color 0.2s;
}
.project:hover .project-body h3 {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.pdesc {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.35rem;
}
.pdesc strong { color: var(--text); font-weight: 600; }

.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.tag-list li {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
}

.project-links { display: flex; gap: 1.5rem; }
.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--muted);
  transition: color 0.2s, transform 0.2s;
}
.project-links a:hover { color: var(--a2); transform: translateY(-1px); }
.project-links svg { transition: transform 0.2s; }
.project-links a:hover svg { transform: scale(1.1); }

#contact { text-align: center; padding: 5rem 0 2.5rem; }
.contact-inner { max-width: 480px; margin: 0 auto; }
#contact .section-num-lg,
#contact h2:first-child {
  display: none;
}
#contact .social-links {
  display: none !important;
}

footer {
  text-align: center;
  padding: 1rem 2.5rem 2.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--faint);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4vmin;
  background: rgba(10, 12, 20, 0.88);
  backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.25s;
}
.lightbox.open { opacity: 1; }
.lightbox[hidden] { display: none; }

.lb-stage {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  max-width: 100%;
  max-height: 100%;
}
.lb-img {
  max-width: min(1100px, 92vw);
  max-height: 82vh;
  object-fit: contain;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.7);
  transform: scale(0.98);
  transition: transform 0.25s;
}
.lightbox.open .lb-img { transform: scale(1); }
.lb-counter {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.lb-btn {
  position: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px; height: 46px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.lb-btn:hover { background: rgba(255, 255, 255, 0.12); border-color: var(--border-hover); }
.lb-close { top: 4vmin; right: 4vmin; }
.lb-prev { left: 4vmin; top: 50%; transform: translateY(-50%); }
.lb-next { right: 4vmin; top: 50%; transform: translateY(-50%); }

@media (max-width: 560px) {
  .lb-prev { left: 2vmin; }
  .lb-next { right: 2vmin; }
  .lb-btn { width: 40px; height: 40px; }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .dot { animation: none; }
  html { scroll-behavior: auto; }
}

@media (max-width: 760px) {
  .project { grid-template-columns: 1fr; gap: 1.5rem; }
  .project:nth-child(even) .project-body { order: 0; }
  .project-grid { gap: 3.5rem; }
}

@media (max-width: 640px) {
  nav ul { gap: 0.85rem; }
  section { padding: 5rem 0; }
  #hero { min-height: 100svh; padding: 6.5rem 0 3rem; }
  #projects { padding-top: 4rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .skill-list { max-width: 260px; }
  .section-head::after { display: none; }
}