/* ---------- tokens ---------- */
:root {
  --bg: #0d0c0b;
  --surface: rgba(22, 20, 18, 0.82);
  --surface-solid: #161412;
  --line: #2a2622;
  --line-strong: #36312c;
  --text: #efe9e1;
  --text-strong: #f6f1ea;
  --text-body: #cbc4bb;
  --text-soft: #d8d1c8;
  --muted: #a39b92;
  --accent: #ff8a3d;
  --accent-soft: #ffad6b;
  --accent-hi: #ffc08a;
  --cream: #f3dcc2;
  --skill: #6e655d;
  --status: #e8b27e;
  --radius: 18px;
  --font: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "DM Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--accent-soft); text-decoration: none; }
a:hover { color: #ffd0a6; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 50;
  background: var(--accent); color: #1a0f07; padding: 10px 14px; border-radius: 10px; font-weight: 600;
}
.skip:focus { top: 12px; }

/* ---------- background canvas ---------- */
#bg {
  position: fixed; inset: 0; width: 100%; height: 100%;
  z-index: 0; pointer-events: none;
  filter: blur(2px);
  opacity: 0.6;
}

.wrap { position: relative; z-index: 1; max-width: 1200px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } }

/* ---------- top bar ---------- */
.topbar { position: relative; z-index: 2; }
.topbar-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding-top: 18px; padding-bottom: 18px; }
.brand { display: flex; align-items: center; gap: 10px; min-height: 44px; font-size: 18px; font-weight: 700; color: var(--text-strong); }
.brand svg { color: var(--accent); }
.brand:hover { color: #fff; }
.nav { display: flex; flex-wrap: wrap; gap: 2px; margin-left: auto; }
.nav a { font-size: 15px; color: #bdb5ab; padding: 12px; }
.nav a:hover { color: #fff; }
@media (max-width: 640px) { .nav { margin-left: -12px; width: 100%; } .nav a { padding: 10px 12px; } }

/* ---------- hero ---------- */
.hero {
  display: flex; flex-wrap: wrap; align-items: center; gap: 40px;
  padding: 72px 0 88px;
}
.hero-text { flex: 1 1 440px; min-width: 0; }
.hero h1 {
  font-size: clamp(44px, 6vw, 64px); line-height: 1.05; font-weight: 700;
  margin: 0; color: var(--text-strong); letter-spacing: -0.02em;
}
.hero h1 .dot { color: var(--accent); }
.lede { font-size: clamp(18px, 1.6vw, 21px); line-height: 1.6; color: var(--text-soft); margin: 24px 0 0; max-width: 620px; }
.hero-sub { font-size: 18px; line-height: 1.6; color: var(--muted); margin: 14px 0 0; max-width: 620px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 30px; }
@media (max-width: 640px) { .hero { padding: 40px 0 64px; gap: 32px; } }

/* ---------- buttons + menu ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; min-height: 46px; padding: 0 18px;
  border-radius: 12px; border: 1px solid var(--line-strong); background: rgba(24, 22, 20, 0.85);
  color: var(--text); font: 500 15.5px var(--font); cursor: pointer;
}
.btn:hover { border-color: var(--accent); color: #fff; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #1a0f07; font-weight: 600; }
.btn.primary:hover { background: #ffa263; color: #1a0f07; }

.dd { position: relative; }
.dd summary { list-style: none; }
.dd summary::-webkit-details-marker { display: none; }
.dd[open] summary svg { transform: rotate(180deg); }
.menu {
  position: absolute; left: 0; top: 54px; width: 290px; z-index: 20;
  background: var(--surface-solid); border: 1px solid var(--line-strong); border-radius: 14px; padding: 6px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
}
.menu a { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border-radius: 10px; color: var(--text); font-size: 15px; }
.menu a span { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.menu a:hover, .menu a:focus-visible { background: #221f1c; color: #fff; }

/* ---------- hero graph card ---------- */
.hg-card {
  position: relative; flex: 1 1 420px; min-width: 0; height: 460px;
  border: 1px solid var(--line); border-radius: 22px;
  background: radial-gradient(ellipse at 50% 45%, rgba(255, 138, 61, 0.07), transparent 65%), rgba(17, 15, 14, 0.78);
  backdrop-filter: blur(3px);
  overflow: hidden;
}
.hg-card canvas { display: block; width: 100%; height: 100%; cursor: pointer; touch-action: none; }
.hg-card.manual canvas { cursor: grab; }
.hg-card.manual.dragging canvas { cursor: grabbing; }
.hg-card canvas:focus-visible { outline: none; }
.hg-card:has(canvas:focus-visible) { outline: 2px solid var(--accent); outline-offset: 3px; }

.hg-tools {
  position: absolute; right: 12px; top: 10px; display: flex; gap: 6px;
  opacity: 0; transform: translateY(-4px); pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.hg-tools button {
  display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 12px;
  border-radius: 10px; border: 1px solid var(--line-strong); background: rgba(13, 12, 11, 0.85);
  color: var(--text); font: 500 13.5px var(--font); cursor: pointer;
}
.hg-tools button:hover:not(:disabled) { border-color: var(--accent); color: #fff; }
.hg-tools button:disabled { opacity: 0.4; cursor: default; }
.hg-hint {
  position: absolute; left: 0; right: 0; bottom: 10px; margin: 0; text-align: center;
  font-family: var(--mono); font-size: 11.5px; color: var(--muted);
  opacity: 0; transition: opacity 0.18s ease; pointer-events: none;
}
.hg-card:hover .hg-tools, .hg-card:focus-within .hg-tools { opacity: 1; transform: none; pointer-events: auto; }
.hg-card:hover .hg-hint, .hg-card:focus-within .hg-hint { opacity: 1; }
@media (hover: none) {
  .hg-tools { opacity: 1; transform: none; pointer-events: auto; }
  .hg-hint { display: none; }
}
@media (max-width: 640px) { .hg-card { height: 360px; flex-basis: 100%; } }

/* ---------- sections + cards ---------- */
main { display: flex; flex-direction: column; gap: 96px; }
.section { display: flex; flex-direction: column; gap: 20px; }
.sec-head { display: flex; flex-direction: column; gap: 8px; }
.sec-title { font-size: 34px; font-weight: 700; color: var(--text-strong); margin: 0; letter-spacing: -0.01em; }
.sec-title.small { font-size: 26px; }
.label { font-family: var(--mono); font-size: 13px; color: var(--muted); margin: 0; }
.label.status { color: var(--status); margin-top: 16px; }

.card {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 32px 36px; backdrop-filter: blur(4px);
}
.card.compact { padding: 28px 36px; }
@media (max-width: 640px) { .card, .card.compact { padding: 24px 20px; } }

.h2 { font-size: 23px; font-weight: 600; color: var(--text-strong); margin: 6px 0 0; line-height: 1.3; }
.h3 { font-size: 17px; font-weight: 600; color: var(--text); margin: 0; }
.h3 .label { font-weight: 400; margin-left: 6px; font-size: 12.5px; }
.desc { font-size: 17px; line-height: 1.6; color: var(--text-soft); margin: 12px 0 0; max-width: 800px; }
.desc.muted { color: var(--muted); font-size: 15.5px; margin-top: 16px; }
.accent { color: var(--accent); font-weight: 500; }

.pills { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-wrap: wrap; gap: 8px 6px; }
.pills li {
  font-size: 13.5px; color: #f3d2b5; background: rgba(255, 138, 61, 0.09);
  border: 1px solid rgba(255, 138, 61, 0.24); border-radius: 999px; padding: 4px 12px;
}
.pills.n li { color: var(--text-soft); background: rgba(255, 255, 255, 0.04); border-color: var(--line-strong); }

ul.b { margin: 16px 0 0; padding-left: 20px; color: var(--text-body); font-size: 16px; line-height: 1.65; }
ul.b li { margin: 0 0 8px; }
ul.b li::marker { color: var(--accent); }
ul.b.cols { columns: 2 320px; column-gap: 40px; }
ul.b.cols li { break-inside: avoid; }

details.sub { display: block; width: 100%; border-top: 1px solid var(--line); }
details.sub:first-of-type { margin-top: 24px; }
details.sub summary {
  cursor: pointer; list-style: none; padding: 15px 0; display: flex; align-items: center; gap: 12px;
  font-weight: 600; font-size: 16px; color: var(--text); min-height: 22px;
}
details.sub summary::-webkit-details-marker { display: none; }
details.sub summary:hover { color: #fff; }
details.sub .chev { color: var(--accent); font-size: 18px; transition: transform 0.2s; }
details.sub[open] .chev { transform: rotate(90deg); }
details.sub ul.b { margin: 0 0 16px 26px; }

.more { display: inline-flex; align-items: center; min-height: 44px; margin-top: 6px; font-weight: 600; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 20px; }

.roles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 12px 40px; margin-top: 18px; }
.roles ul.b { margin-top: 10px; }

.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); gap: 28px; }
.skills .h3 { font-size: 15px; }
.skills .pills { margin-top: 12px; }

.course { font-size: 15.5px; line-height: 1.65; color: var(--text-body); margin: 14px 0 0; }
.course strong { color: var(--text); font-weight: 600; }
#education .h2 { font-size: 20px; margin-top: 14px; }
#education .label { margin-top: 6px; }

/* ---------- index graph ---------- */
.index-card { padding: 28px 28px 20px; }
.index-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 12px; padding: 0 8px; }
.index-head .label { margin-top: 6px; }
.legend { list-style: none; display: flex; flex-wrap: wrap; gap: 16px; padding: 0; }
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.sw-work { background: var(--accent); }
.sw-project { background: var(--cream); }
.sw-group { border: 1.5px solid var(--accent); }
.sw-skill { background: var(--skill); width: 8px; height: 8px; }
.index-body { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 18px; align-items: stretch; }
.index-graph { position: relative; flex: 999 1 560px; min-width: 0; min-height: 480px; border: 1px solid var(--line); border-radius: 14px; background: #110f0e; overflow: hidden; }
.index-graph svg { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }
.index-graph line { stroke: #3d342d; stroke-width: 1.3; transition: stroke 0.15s, opacity 0.15s; }
.index-graph text { font-family: var(--mono); font-size: 12px; fill: #bdb5ab; transition: fill 0.15s, opacity 0.15s; pointer-events: none; }
.index-graph .node { transition: opacity 0.15s; touch-action: none; cursor: grab; }
.index-graph .node.link text { fill: var(--text-strong); font-weight: 500; }
.index-graph .node.link { cursor: pointer; }
.index-graph .node.dragging, .index-graph svg.dragging { cursor: grabbing; }
.index-graph svg.focus .node, .index-graph svg.focus line { opacity: 0.22; }
.index-graph svg.focus .node.on, .index-graph svg.focus line.on { opacity: 1; }
.index-graph svg.focus line.on { stroke: var(--accent); stroke-width: 1.8; }
.index-graph .node.on.hot circle { stroke: #fff; stroke-width: 2; }
.index-graph a:focus-visible { outline: none; }
.index-graph a:focus-visible circle { stroke: #fff; stroke-width: 2.5; }

@media (max-width: 640px) {
  .index-card { padding: 20px 14px 12px; }
  .index-head { padding: 0 6px; }
  .index-graph { min-height: 440px; }
  .index-graph text { font-size: 13px; }
}
.idx { flex: 1 1 240px; display: flex; flex-direction: column; gap: 2px; }
.idx a {
  display: flex; justify-content: space-between; gap: 12px; align-items: center;
  padding: 12px 14px; border-radius: 10px; color: var(--text); font-size: 15.5px; border: 1px solid transparent;
}
.idx a:hover { background: #1d1a17; border-color: var(--line-strong); color: #fff; }
.idx a span { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }

/* ---------- footer ---------- */
.footer {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  margin: 56px 0 0; padding: 20px 0 40px; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 12.5px; color: #8a827a;
}