:root {
  --bg: #0b0d10;
  --bg-2: #12151a;
  --line: #1f242c;
  --text: #e6e8eb;
  --muted: #8b939e;
  --accent: #ff8a3d;
  --accent-2: #4fd1c5;
  --radius: 12px;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
h1, h2, h3 { line-height: 1.2; margin: 0; }
ul { margin: 0; }
.mono { font-family: var(--mono); }
.wrap { width: min(1080px, 100% - 32px); margin-inline: auto; }

/* Nav */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px max(16px, (100% - 1080px) / 2);
  background: rgba(11, 13, 16, 0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav__brand { font: 700 18px var(--mono); text-decoration: none; }
.nav__brand span { color: var(--accent); }
.nav__links { display: flex; gap: 24px; }
.nav__links a { color: var(--muted); text-decoration: none; font-size: 14px; transition: color .15s; }
.nav__links a:hover { color: var(--text); }

/* Hero */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
}
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero__shade {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(11,13,16,.78) 0%, rgba(11,13,16,.45) 45%, rgba(11,13,16,0) 75%),
              linear-gradient(0deg, var(--bg) 0%, rgba(11,13,16,0) 25%);
}
.hero__content { position: relative; padding-top: 80px; }
.eyebrow { font: 14px var(--mono); color: var(--accent-2); margin: 0 0 16px; }
.hero h1 { font-size: clamp(40px, 7vw, 76px); font-weight: 700; letter-spacing: -0.02em; }
.hero__lede { max-width: 560px; font-size: clamp(17px, 2vw, 19px); color: #c3c8cf; margin: 20px 0 32px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__meta {
  list-style: none; padding: 0; margin-top: 32px;
  display: flex; flex-wrap: wrap; gap: 8px 24px;
  font: 13px var(--mono); color: var(--muted);
}
.hero__caption {
  position: absolute; right: 16px; bottom: 16px; margin: 0;
  font: 11px var(--mono); color: rgba(230,232,235,.45);
}

.btn {
  display: inline-block; padding: 11px 20px; border-radius: 8px;
  border: 1px solid var(--line); background: rgba(18,21,26,.7);
  text-decoration: none; font-weight: 500; font-size: 15px;
  transition: border-color .15s, transform .15s, background .15s;
}
.btn:hover { border-color: #3a414c; transform: translateY(-1px); }
.btn--primary { background: var(--accent); border-color: var(--accent); color: #1a0e05; }
.btn--primary:hover { background: #ff9d5c; border-color: #ff9d5c; }

/* Sections */
.section { padding: 96px 0 24px; }
.section__title {
  display: flex; align-items: baseline; gap: 14px;
  font-size: 28px; margin-bottom: 40px;
}
.section__title span { font: 14px var(--mono); color: var(--accent); }
.section__title::after { content: ""; flex: 1; height: 1px; background: var(--line); transform: translateY(-6px); }

/* Experience */
.timeline { list-style: none; padding: 0; margin: 0; }
.job {
  position: relative; padding: 0 0 48px 28px;
  border-left: 1px solid var(--line);
}
.job:last-child { padding-bottom: 0; }
.job::before {
  content: ""; position: absolute; left: -5px; top: 8px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
}
.job__head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; align-items: baseline; }
.job h3 { font-size: 20px; }
.at { color: var(--accent); font-weight: 500; }
.job__date { font: 13px var(--mono); color: var(--muted); white-space: nowrap; }
.job__sub { margin: 4px 0 12px; color: var(--muted); font-size: 14px; }
.job p { margin: 0 0 10px; }
.job > ul:not(.tags), .card > ul:not(.tags) { padding-left: 18px; color: #c3c8cf; }
.job > ul:not(.tags) li, .card > ul:not(.tags) li { margin-bottom: 6px; }

.tags { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tags li {
  font: 12px var(--mono); color: var(--accent-2);
  padding: 4px 10px; border-radius: 999px;
  background: rgba(79, 209, 197, .08); border: 1px solid rgba(79, 209, 197, .2);
}

/* Projects */
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  display: flex; flex-direction: column;
  padding: 24px; border-radius: var(--radius);
  background: var(--bg-2); border: 1px solid var(--line);
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: #343b46; transform: translateY(-2px); }
.card__top { display: flex; justify-content: space-between; gap: 8px; font: 12px var(--mono); color: var(--muted); margin-bottom: 14px; }
.card__api { color: var(--accent); }
.card h3 { font-size: 20px; margin-bottom: 8px; }
.card p { margin: 0 0 12px; color: #c3c8cf; }
.card > ul:not(.tags) { font-size: 15px; }
.card .tags { margin-top: auto; padding-top: 14px; }
.card strong { color: var(--text); }
.card--link { text-decoration: none; padding-top: 0; overflow: hidden; }
.card--link:hover h3 { color: var(--accent); }
.card--link:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.card__thumb {
  margin: 0 -24px 18px; aspect-ratio: 16 / 9; overflow: hidden;
  background: #0f1216; border-bottom: 1px solid var(--line);
}
.card__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
.card--link:hover .card__thumb img { transform: scale(1.04); }
.card__thumb--empty {
  display: grid; place-items: center;
  background:
    linear-gradient(rgba(79,209,197,.06) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, rgba(79,209,197,.06) 1px, transparent 1px) 0 0 / 24px 24px,
    radial-gradient(circle at 70% 40%, rgba(255,138,61,.25), transparent 60%), #0f1216;
}
.card__thumb--empty span { font: 500 14px var(--mono); color: var(--muted); }
.group__title {
  font: 500 13px var(--mono); color: var(--muted); text-transform: uppercase; letter-spacing: .08em;
  margin: 0 0 16px;
}
.grid + .group__title { margin-top: 48px; }

/* Project detail page */
.project { padding: 104px 0 64px; max-width: 880px; }
.back { display: inline-block; font: 13px var(--mono); color: var(--muted); text-decoration: none; margin-bottom: 32px; }
.back:hover { color: var(--accent); }
.project__head h1 { font-size: clamp(32px, 5vw, 48px); letter-spacing: -0.01em; }
.project__summary { font-size: 19px; color: #c3c8cf; margin: 16px 0 0; }
.project__links { margin-top: 24px; }
.project__body { margin-top: 48px; }
.project__body h2 { font-size: 20px; margin: 40px 0 16px; }
.project__body p { color: #c3c8cf; margin: 0 0 16px; }
.project__list { padding-left: 20px; color: #c3c8cf; margin: 0 0 24px; }
.project__list li { margin-bottom: 8px; }
.project__note { font-size: 14px; color: var(--muted) !important; border-left: 2px solid var(--line); padding-left: 14px; }
.figures { display: grid; gap: 16px; margin: 0 0 24px; }
.figures--2 { grid-template-columns: repeat(2, 1fr); }
.figures--3 { grid-template-columns: repeat(3, 1fr); }
.figures figure, .video { margin: 0; }
.figures img {
  width: 100%; display: block; border-radius: 8px; border: 1px solid var(--line);
  background: #0f1216; transition: border-color .2s;
}
.figures a:hover img { border-color: var(--accent); }
figcaption { font: 12px var(--mono); color: var(--muted); margin-top: 8px; }
.video { margin-bottom: 24px; }
.video__poster, .video iframe {
  display: block; width: 100%; aspect-ratio: 16 / 9; border: 1px solid var(--line); border-radius: 8px;
  overflow: hidden; background: #000;
}
.video__poster { position: relative; padding: 0; cursor: pointer; }
.video__poster img { width: 100%; height: 100%; object-fit: cover; opacity: .8; transition: opacity .2s; }
.video__poster:hover img { opacity: 1; }
.video__play {
  position: absolute; left: 50%; top: 50%; width: 68px; height: 48px; transform: translate(-50%, -50%);
  border-radius: 12px; background: var(--accent);
}
.video__play::after {
  content: ""; position: absolute; left: 27px; top: 14px;
  border-style: solid; border-width: 10px 0 10px 17px; border-color: transparent transparent transparent #1a0e05;
}
.project__table { border-collapse: collapse; font: 14px var(--mono); margin: 0 0 20px; min-width: 280px; }
.project__table th, .project__table td { text-align: left; padding: 8px 24px 8px 0; border-bottom: 1px solid var(--line); }
.project__table th { color: var(--muted); font-weight: 500; }
.project__table td:last-child { color: var(--accent-2); }
.project__missing { color: var(--muted); }
.project__pager {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 64px;
  padding-top: 24px; border-top: 1px solid var(--line);
}
.project__pager a {
  display: flex; flex-direction: column; gap: 4px; padding: 16px 20px; border-radius: var(--radius);
  border: 1px solid var(--line); text-decoration: none; font-weight: 600; transition: border-color .2s;
}
.project__pager a:last-child { text-align: right; }
.project__pager a:hover { border-color: var(--accent); }
.project__pager span { font: 12px var(--mono); color: var(--muted); font-weight: 400; }

/* Skills */
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.skill { padding: 20px 24px; border-radius: var(--radius); border: 1px solid var(--line); }
.skill h3 { font-size: 15px; font-weight: 600; color: var(--muted); }
.skill .tags { margin-top: 12px; }

/* Education */
.edu { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.edu__item { padding: 24px; border-radius: var(--radius); background: var(--bg-2); border: 1px solid var(--line); }
.edu__item h3 { font-size: 18px; margin-bottom: 6px; }
.edu__item p { margin: 0 0 10px; color: var(--muted); }

/* Contact */
.contact { padding-bottom: 96px; }
.contact__lede { font-size: 18px; color: #c3c8cf; margin: 0 0 24px; max-width: 560px; }

.footer {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
  padding: 24px 0 40px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: 13px;
}

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 720px) {
  .nav__links { display: none; }
  .hero__shade { background: linear-gradient(0deg, rgba(11,13,16,.95) 15%, rgba(11,13,16,.55) 100%); }
  .hero__caption { display: none; }
  .section { padding-top: 72px; }
  .grid, .skills, .edu { grid-template-columns: 1fr; }
  .job { padding-left: 20px; }
  .figures--2, .figures--3 { grid-template-columns: 1fr; }
  .project { padding-top: 88px; }
  .project__pager { grid-template-columns: 1fr; }
  .project__pager a:last-child { text-align: left; }
}

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