/* UniVis gallery v2 — wafer compute lattice aesthetic, dual theme */

:root, :root[data-theme="dark"] {
  --bg: #08090d;
  --bg2: #0d1017;
  --bg3: #12161f;
  --line: rgba(255, 255, 255, 0.08);
  --line2: rgba(255, 255, 255, 0.16);
  --txt: #e8eaf0;
  --dim: #98a1b3;
  --lede: #c3c9d6;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
  --card-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
  --nav-bg: rgba(8, 9, 13, 0.82);
  --chip-bg: rgba(255, 255, 255, 0.04);
  /* background lattice */
  --lat-line: rgba(255, 255, 255, 0.05);
  --lat-line2: rgba(255, 255, 255, 0.10);
  --lat-trace: rgba(204, 71, 120, 0.16);
  --lat-via: rgba(240, 249, 33, 0.22);
  --pl-violet: #7e03a8;
  --pl-magenta: #cc4778;
  --pl-orange: #f89441;
  --pl-yellow: #f0f921;
  /* chart canvas internal (drawn in JS) */
  --chart-bg: #0d1017;
  --chart-grid: rgba(255, 255, 255, 0.10);
  --chart-label: rgba(152, 161, 179, 0.85);
  --mono: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  --sans: 'DM Sans', -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}

:root[data-theme="light"] {
  --bg: #f5f3ee;
  --bg2: #fdfcf9;
  --bg3: #ecebe4;
  --line: rgba(30, 27, 38, 0.13);
  --line2: rgba(30, 27, 38, 0.22);
  --txt: #232030;
  --dim: #6d6879;
  --lede: #444052;
  --shadow: 0 24px 70px rgba(60, 50, 80, 0.16);
  --card-shadow: 0 14px 36px rgba(60, 50, 80, 0.14);
  --nav-bg: rgba(245, 243, 238, 0.85);
  --chip-bg: rgba(30, 27, 38, 0.04);
  --lat-line: rgba(30, 27, 38, 0.06);
  --lat-line2: rgba(30, 27, 38, 0.12);
  --lat-trace: rgba(126, 3, 168, 0.20);
  --lat-via: rgba(204, 71, 120, 0.35);
  --chart-bg: #ffffff;
  --chart-grid: rgba(30, 27, 38, 0.10);
  --chart-label: rgba(90, 85, 105, 0.95);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--txt);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  transition: background 0.35s, color 0.35s;
}
::selection { background: rgba(204, 71, 120, 0.35); }
a { color: inherit; }
img { max-width: 100%; display: block; }
.mono { font-family: var(--mono); }
.dim { color: var(--dim); }
.lede { color: var(--lede); }

/* ---------- background lattice canvas ---------- */
#bgCanvas {
  position: fixed; inset: 0; z-index: 0; width: 100vw; height: 100vh;
  pointer-events: none;
}
.nav, .hero, main, .footer { position: relative; z-index: 1; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px clamp(20px, 5vw, 64px);
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand {
  font-weight: 700; letter-spacing: 0.02em; text-decoration: none;
  display: flex; align-items: center; gap: 10px;
}
.brand-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--pl-yellow), var(--pl-magenta) 60%, var(--pl-violet));
  box-shadow: 0 0 12px rgba(204, 71, 120, 0.8);
}
.brand-sub { font-family: var(--mono); font-weight: 400; font-size: 12px; color: var(--dim); }
.nav-links { display: flex; gap: clamp(8px, 1.6vw, 22px); flex-wrap: wrap; align-items: center; }
.nav-links a {
  font-size: 14px; color: var(--dim); text-decoration: none;
  padding: 4px 2px; border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--txt); border-color: var(--pl-magenta); }
.theme-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 8px;
  border: 1px solid var(--line2); background: var(--chip-bg); color: var(--dim);
  cursor: pointer; transition: color 0.2s, border-color 0.2s, transform 0.15s;
}
.theme-btn:hover, .theme-btn:focus-visible { color: var(--txt); border-color: var(--pl-magenta); transform: translateY(-1px); }
:root[data-theme="dark"] .ic-sun { display: none; }
:root[data-theme="light"] .ic-moon { display: none; }

/* ---------- hero ---------- */
.hero { padding: clamp(70px, 10vh, 120px) clamp(20px, 6vw, 84px) 80px; }
.hero-inner { position: relative; max-width: 1120px; margin: 0 auto; }
.kicker {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--pl-magenta);
  margin-bottom: 22px;
}
h1 {
  font-size: clamp(34px, 5.6vw, 62px); font-weight: 700;
  line-height: 1.14; letter-spacing: -0.015em; margin-bottom: 26px;
}
h1 em {
  font-style: normal;
  background: linear-gradient(94deg, var(--pl-violet), var(--pl-magenta) 45%, var(--pl-orange));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { max-width: 760px; font-size: clamp(15px, 1.6vw, 17.5px); margin-bottom: 40px; }
.lede b { color: var(--txt); font-weight: 500; }
.hint { color: var(--pl-orange); font-size: 0.86em; }

/* hero canvas keeps the dark instrument chassis in BOTH themes */
.hero-canvas-wrap {
  position: relative; border: 1px solid var(--line2); border-radius: 10px;
  background: #0d1017; overflow: hidden;
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(255, 255, 255, 0.02);
  margin-bottom: 34px;
}
#heroCanvas { width: 100%; height: auto; display: block; cursor: crosshair; }
.hero-readout {
  position: absolute; top: 12px; right: 14px; display: flex; gap: 16px;
  font-size: 12px; color: var(--pl-yellow); text-shadow: 0 0 8px rgba(0, 0, 0, 0.9);
}
#roState { color: var(--pl-orange); }
.hero-cap { font-size: 11px; color: #98a1b3; padding: 10px 14px; border-top: 1px solid rgba(255, 255, 255, 0.08); }

.cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 6px;
  font-size: 15px; font-weight: 500; text-decoration: none;
  border: 1px solid var(--line2); color: var(--txt);
  background: var(--bg3); cursor: pointer;
  transition: transform 0.15s, border-color 0.2s, box-shadow 0.2s;
}
.btn:hover, .btn:focus-visible { transform: translateY(-2px); border-color: var(--pl-magenta); box-shadow: 0 8px 24px rgba(204, 71, 120, 0.22); }
.btn.primary {
  background: linear-gradient(94deg, var(--pl-violet), var(--pl-magenta));
  border-color: transparent; color: #fff;
}
.btn.ghost { background: transparent; font-size: 14px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
}
.hero-stats > div { background: var(--bg2); padding: 18px 22px; }
.hero-stats dt { font-size: 12.5px; color: var(--dim); margin-bottom: 4px; }
.hero-stats dd { font-family: var(--mono); font-size: 20px; color: var(--pl-orange); }

/* ---------- sections ---------- */
.section { padding: clamp(64px, 9vh, 110px) clamp(20px, 6vw, 84px); max-width: 1180px; margin: 0 auto; }
.section.alt { max-width: none; background: var(--bg2); }
.section.alt > * { max-width: 1180px; margin-left: auto; margin-right: auto; }
.section-head { margin-bottom: 44px; }
h2 { font-size: clamp(24px, 3.4vw, 36px); font-weight: 700; line-height: 1.25; margin-bottom: 16px; }

/* report gallery */
.report-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px; margin-bottom: 22px;
}
.rcard {
  position: relative; display: flex; flex-direction: column; gap: 10px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg3);
  padding: 20px 22px; text-decoration: none;
  transition: transform 0.18s, border-color 0.2s, box-shadow 0.2s;
}
.rcard:hover, .rcard:focus-visible {
  transform: translateY(-3px); border-color: rgba(204, 71, 120, 0.55);
  box-shadow: var(--card-shadow);
}
.rcard .tag {
  align-self: flex-start; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em;
  padding: 3px 9px; border-radius: 99px; border: 1px solid;
}
.tag.c500 { color: var(--pl-orange); border-color: rgba(248, 148, 65, 0.45); background: rgba(248, 148, 65, 0.08); }
.tag.l20 { color: #58a15c; border-color: rgba(88, 161, 92, 0.45); background: rgba(88, 161, 92, 0.08); }
:root[data-theme="dark"] .tag.l20 { color: #7fb069; }
.rcard h3 { font-size: 17px; font-weight: 700; }
.rcard p { font-family: var(--mono); font-size: 12px; color: var(--dim); line-height: 1.7; }
.rcard .open { margin-top: auto; font-family: var(--mono); font-size: 12.5px; color: var(--pl-magenta); }
.rcard .spark { height: 4px; border-radius: 2px; overflow: hidden; background: var(--bg); }
.rcard .spark i { display: block; height: 100%; }

/* hover preview */
.thumb-preview {
  position: fixed; z-index: 90; width: 340px; pointer-events: none;
  border: 1px solid var(--line2); border-radius: 10px; overflow: hidden;
  background: #0d1017; box-shadow: var(--card-shadow);
  opacity: 0; transform: translateY(6px) scale(0.98);
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.thumb-preview.show { opacity: 1; transform: none; }
.thumb-preview img { width: 100%; display: block; }
.thumb-preview .tp-cap {
  display: block; font-size: 10.5px; color: #98a1b3; padding: 7px 10px;
  background: #0d1017; border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* tables */
.rtable, .honest-table { overflow-x: auto; margin-bottom: 34px; border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 520px; }
th, td { padding: 12px 18px; text-align: left; border-bottom: 1px solid var(--line); }
th { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; color: var(--dim); font-weight: 400; }
tbody tr:last-child td { border-bottom: none; }
td:not(:first-child) { font-family: var(--mono); }
tr.hl td { color: var(--pl-orange); }
:root[data-theme="dark"] tr.hl td { color: var(--pl-yellow); }
tr.bad td { color: #e05545; }
:root[data-theme="dark"] tr.bad td { color: #ff7a6b; }

/* charts */
.chart-pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.chart-pair figure, .bigfig { border: 1px solid var(--line); border-radius: 10px; background: var(--bg2); padding: 14px; }
.chart-pair figcaption { font-family: var(--mono); font-size: 12px; color: var(--dim); padding-top: 10px; text-align: center; }
.chart-pair img, .bigfig img { border-radius: 6px; }

/* timeline */
.tl { list-style: none; position: relative; max-width: 860px; }
.tl::before {
  content: ''; position: absolute; left: 64px; top: 8px; bottom: 8px; width: 1px;
  background: linear-gradient(180deg, var(--pl-violet), var(--pl-magenta) 55%, var(--pl-orange));
  opacity: 0.55;
}
.tl li { position: relative; display: flex; gap: 28px; padding: 0 0 42px 0; }
.tl-time { flex: 0 0 52px; text-align: right; font-size: 13px; color: var(--pl-orange); padding-top: 3px; }
.tl li::after {
  content: ''; position: absolute; left: 60px; top: 7px; width: 9px; height: 9px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--pl-magenta); box-shadow: 0 0 10px rgba(204, 71, 120, 0.5);
}
.tl h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.tl p { font-size: 15px; color: var(--lede); max-width: 640px; }
.tl b { color: var(--txt); font-weight: 500; }

/* early-exit */
.ee-wrap { border: 1px solid var(--line); border-radius: 10px; background: var(--bg2); padding: 22px; }
.ee-controls { display: flex; gap: 10px; margin-bottom: 14px; }
.pill {
  font-family: var(--mono); font-size: 13px; padding: 7px 16px; border-radius: 99px;
  border: 1px solid var(--line2); background: transparent; color: var(--dim); cursor: pointer;
  transition: all 0.2s;
}
.pill.active { color: var(--txt); border-color: var(--pl-magenta); background: rgba(204, 71, 120, 0.14); }
#eeChart { width: 100%; height: auto; border-radius: 6px; }
#eeTip { font-size: 12px; color: var(--pl-orange); margin-top: 10px; min-height: 1.4em; }
:root[data-theme="dark"] #eeTip { color: var(--pl-yellow); }

/* contract */
.contract-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
.contract-grid h3 { font-size: 16px; margin-bottom: 14px; color: var(--pl-orange); }
.mono-list li {
  list-style: none; font-family: var(--mono); font-size: 13px; color: var(--lede);
  padding: 8px 0 8px 18px; position: relative; border-bottom: 1px dashed var(--line);
}
.mono-list li::before { content: '▸'; position: absolute; left: 0; color: var(--pl-magenta); }
details { border-bottom: 1px solid var(--line); padding: 12px 0; }
summary { cursor: pointer; font-weight: 500; font-size: 15px; }
summary:hover { color: var(--pl-orange); }
:root[data-theme="dark"] summary:hover { color: var(--pl-yellow); }
details p { font-size: 14.5px; color: var(--lede); padding-top: 8px; }

/* ack */
.ack-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 22px; }
.ack-card {
  border: 1px solid var(--line); border-radius: 10px; background: var(--bg3);
  padding: 26px 28px; position: relative; overflow: hidden;
}
.ack-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--pl-violet), var(--pl-magenta), var(--pl-orange));
}
.ack-card h3 { font-size: 17px; margin-bottom: 12px; color: var(--txt); }
.ack-card p { font-size: 14.5px; color: var(--lede); margin-bottom: 12px; }
.ack-card b { color: var(--txt); font-weight: 500; }

/* footer */
.footer {
  border-top: 1px solid var(--line); padding: 34px clamp(20px, 6vw, 84px);
  text-align: center; font-size: 13.5px;
}
.footer a { color: var(--pl-magenta); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footnote { font-size: 12.5px; color: var(--dim); max-width: 900px; }

/* scroll reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover { transform: none; }
}

/* mobile */
@media (max-width: 640px) {
  .nav { flex-direction: column; gap: 10px; }
  .tl::before { left: 20px; }
  .tl li { flex-direction: column; gap: 4px; padding-left: 44px; }
  .tl-time { text-align: left; flex: none; }
  .tl li::after { left: 16px; }
  .hero-readout { top: 8px; right: 8px; gap: 8px; font-size: 10px; }
  .thumb-preview { display: none; }
}

/* focus visibility */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--pl-orange); outline-offset: 3px; border-radius: 4px;
}