/* quench site system - a deliberate departure from the shared datasheet lane.
   Deep-water navy console over a live WebGL quench scene (ember cooling to teal).
   Same family voice: real numbers as imagery, mono evidence. */

:root {
  --bg: oklch(0.145 0.028 245);
  --bg-deep: oklch(0.115 0.024 248);
  --panel: oklch(0.175 0.028 243 / 0.82);
  --panel-solid: oklch(0.175 0.028 243);
  --inset: oklch(0.14 0.026 245 / 0.85);
  --line: oklch(0.34 0.035 240 / 0.55);
  --line-strong: oklch(0.46 0.045 235 / 0.7);

  --ink: oklch(0.96 0.008 230);
  --ink-mid: oklch(0.80 0.02 235);
  --ink-dim: oklch(0.67 0.025 238);

  --accent: oklch(0.78 0.108 215);          /* quench cyan, #4cc9f0 */
  --accent-deep: oklch(0.62 0.11 225);
  --accent-ink: oklch(0.16 0.03 235);
  --accent-tint: oklch(0.78 0.108 215 / 0.13);

  --hot: oklch(0.66 0.19 27);
  --hot-tint: oklch(0.66 0.19 27 / 0.14);
  --ok: oklch(0.80 0.16 155);
  --ok-tint: oklch(0.80 0.16 155 / 0.13);
  --warn: oklch(0.84 0.13 90);

  --sans: "Archivo", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "Martian Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --step--1: clamp(0.76rem, 0.72rem + 0.2vw, 0.83rem);
  --step-0: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  --step-1: clamp(1.2rem, 1.1rem + 0.5vw, 1.45rem);
  --step-2: clamp(1.6rem, 1.4rem + 1vw, 2.2rem);
  --step-3: clamp(2.2rem, 1.9rem + 1.8vw, 3.2rem);
  --step-4: clamp(3rem, 2.1rem + 4.2vw, 5.4rem);

  --pad: clamp(20px, 4vw, 56px);
  --measure: 68ch;
  --z-bg: -1;
  --z-nav: 10;

  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent-tint); }

h1, h2, h3 { line-height: 1.08; text-wrap: balance; margin: 0; }
p { text-wrap: pretty; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

code, pre, .mono { font-family: var(--mono); }
.num { font-variant-numeric: tabular-nums; }

.wrap { max-width: 1120px; margin: 0 auto; padding-inline: var(--pad); }
.wrap-wide { max-width: 1360px; margin: 0 auto; padding-inline: var(--pad); }

/* ── background scene ─────────────────────────────────── */

#quench-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-bg);
  background:
    radial-gradient(120% 90% at 50% 110%, oklch(0.22 0.06 30 / 0.35), transparent 55%),
    radial-gradient(140% 100% at 50% -20%, oklch(0.19 0.04 240), var(--bg-deep) 70%);
}

/* ── header ────────────────────────────────────────────── */

.top {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 16px var(--pad);
  background: oklch(0.115 0.024 248 / 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.top .mark {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}
.top .mark:hover { color: var(--accent); }
.top nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  font-family: var(--mono);
  font-size: var(--step--1);
}
.top nav a { color: var(--ink-mid); text-decoration: none; }
.top nav a:hover { color: var(--ink); }
.top .ext {
  margin-left: auto;
  display: flex;
  gap: 4px 18px;
  font-family: var(--mono);
  font-size: var(--step--1);
}
.top .ext a { color: var(--ink-dim); text-decoration: none; }
.top .ext a:hover { color: var(--accent); }
@media (max-width: 780px) {
  .top nav { display: none; }
}

/* ── hero ──────────────────────────────────────────────── */

.hero { padding: clamp(56px, 9vw, 120px) 0 clamp(28px, 4vw, 48px); text-align: center; }
.hero h1 {
  font-size: var(--step-4);
  font-weight: 800;
  letter-spacing: -0.03em;
}
.hero h1 .fix { color: var(--accent); }
.hero .what {
  max-width: 62ch;
  margin: 26px auto 0;
  color: var(--ink-mid);
  font-size: var(--step-1);
  line-height: 1.55;
  font-weight: 500;
}
.hero .what b { color: var(--ink); font-weight: 650; }

.cta-row { display: flex; justify-content: center; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 650;
  text-decoration: none;
  font-size: var(--step-0);
  transition: background-color 0.18s ease-out, border-color 0.18s ease-out, color 0.18s ease-out;
}
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: oklch(0.85 0.1 213); color: var(--accent-ink); }
.btn.ghost { border: 1px solid var(--line-strong); color: var(--ink); }
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ── console mockup ────────────────────────────────────── */

.console { padding: clamp(30px, 5vw, 60px) 0 10px; }
.console-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.12fr) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
@media (max-width: 1080px) {
  .console-grid { grid-template-columns: 1fr 1fr; }
  .panel.run { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .console-grid { grid-template-columns: 1fr; }
}

.panel {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  font-size: var(--step--1);
}
.panel.run { border-color: oklch(0.66 0.19 27 / 0.45); }
.panel.gate { border-color: oklch(0.80 0.16 155 / 0.4); }

.panel .phead {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  color: var(--ink-mid);
}
.panel .phead .spacer { margin-left: auto; }
.panel .phead .pfail { color: var(--hot); font-weight: 700; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.dot.red { background: var(--hot); }
.dot.cyan { background: var(--accent); }
.dot.green { background: var(--ok); }
.dot.pulse { animation: pulse 1.6s ease-out infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 oklch(0.78 0.108 215 / 0.5); }
  100% { box-shadow: 0 0 0 8px oklch(0.78 0.108 215 / 0); }
}
@media (prefers-reduced-motion: reduce) {
  .dot.pulse { animation: none; }
}

.pbody { padding: 14px 16px; }

/* run panel */
.run-title { font-family: var(--mono); }
.run-title .fail { color: var(--hot); font-weight: 700; }
.run-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-top: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  color: var(--ink-dim);
}
.run-meta a { color: var(--ink-dim); }
.run-meta a:hover { color: var(--accent); }

.jobs { list-style: none; margin: 12px 0 0; padding: 0; font-family: var(--mono); }
.jobs > li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 8px;
  border-radius: 6px;
}
.jobs > li .dur { margin-left: auto; color: var(--ink-dim); }
.jobs > li.failed { background: var(--hot-tint); }
.jobs > li.failed .jname { color: var(--hot); font-weight: 700; }
.mark-ok { color: var(--ok); }
.mark-fail { color: var(--hot); }
.mark-skip { color: var(--ink-dim); }

.steps { list-style: none; margin: 6px 0 0; padding: 0 0 0 14px; border-left: 1px solid var(--line); }
.steps li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 4px 8px;
  color: var(--ink-mid);
}
.steps li.failed { color: var(--hot); font-weight: 700; }
.steps li .st { margin-left: auto; color: var(--ink-dim); font-weight: 400; }
.steps li.failed .st { color: var(--hot); }

/* trajectory panel */
.traj { list-style: none; margin: 0; padding: 0; font-family: var(--mono); }
.traj li {
  position: relative;
  padding: 9px 8px 9px 26px;
  border-bottom: 1px solid oklch(0.34 0.035 240 / 0.28);
}
.traj li:last-child { border-bottom: 0; }
.traj li::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 15px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-deep);
}
.traj li.write::before { background: var(--warn); }
.traj .tool { color: var(--accent); font-weight: 700; }
.traj .out { display: block; color: var(--ink-mid); margin-top: 2px; }
.traj li.write { background: oklch(0.84 0.13 90 / 0.07); border-radius: 6px; }
.traj li.write .tool { color: var(--warn); }
.traj .wait { color: var(--warn); }
.traj .wait::after {
  content: "▍";
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .traj .wait::after { animation: none; } }

.pfoot {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding: 11px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  color: var(--ink-dim);
}
.pfoot .live { color: var(--accent); }

/* diagnosis + gate column */
.col-stack { display: grid; gap: 18px; }

.diag dl { margin: 0; display: grid; gap: 12px; }
.diag dt {
  font-family: var(--mono);
  color: var(--ink-dim);
}
.diag dd { margin: 2px 0 0; }
.diag .fclass { font-family: var(--mono); font-weight: 700; color: var(--hot); font-size: var(--step-0); }
.diag .cause { color: var(--ink-mid); }

.meter {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
}
.meter .pct { font-weight: 700; font-size: var(--step-1); color: var(--ink); }
.meter .bar {
  flex: 1;
  height: 8px;
  border-radius: 99px;
  background: var(--inset);
  border: 1px solid var(--line);
  overflow: hidden;
}
.meter .bar i {
  display: block;
  height: 100%;
  width: 85%;
  background: linear-gradient(90deg, var(--hot), var(--warn));
}

.ev { list-style: none; margin: 4px 0 0; padding: 0; font-family: var(--mono); display: grid; gap: 5px; }
.ev li { display: flex; gap: 10px; align-items: baseline; color: var(--ink-mid); }
.ev .kind { color: var(--ink-dim); flex: none; min-width: 8.5ch; }
.ev q { quotes: "\201C" "\201D"; }

.gate .gtitle { color: var(--ok); font-weight: 700; letter-spacing: 0.04em; }
.gate .proposed { margin: 0; font-family: var(--mono); color: var(--ink-mid); }
.gate .proposed .tool { color: var(--warn); font-weight: 700; }
.gate .cmdline {
  margin-top: 10px;
  padding: 10px 12px;
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-family: var(--mono);
  color: var(--ink);
  overflow-x: auto;
  white-space: nowrap;
}
.gate-btns { display: flex; gap: 10px; margin-top: 14px; }
.gate-btns .demo {
  flex: 1;
  text-align: center;
  padding: 10px 14px;
  border-radius: 8px;
  font-weight: 700;
  font-family: var(--mono);
  font-size: var(--step--1);
}
.gate-btns .approve { background: var(--ok); color: oklch(0.17 0.04 155); }
.gate-btns .reject { border: 1px solid oklch(0.66 0.19 27 / 0.6); color: var(--hot); }
.gate .fine { margin: 12px 0 0; color: var(--ink-dim); font-family: var(--mono); }

.console-caption {
  margin: 16px auto 0;
  max-width: 88ch;
  text-align: center;
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: var(--step--1);
  text-shadow: 0 1px 14px oklch(0.08 0.02 248 / 0.9), 0 0 4px oklch(0.08 0.02 248 / 0.9);
}
.console-caption a { color: var(--ink-dim); }
.console-caption a:hover { color: var(--accent); }

/* ── failure classes + evidence ────────────────────────── */

.classes { padding: clamp(30px, 5vw, 56px) 0 0; text-align: center; }
.classes .clabel {
  font-family: var(--mono);
  color: var(--ink-mid);
  font-size: var(--step--1);
  text-shadow: 0 1px 14px oklch(0.08 0.02 248 / 0.9), 0 0 4px oklch(0.08 0.02 248 / 0.9);
}
.chiprow {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
}
.chip {
  font-family: var(--mono);
  font-size: var(--step--1);
  padding: 8px 16px;
  border-radius: 99px;
  border: 1px solid var(--line);
  color: var(--ink-mid);
  background: oklch(0.175 0.028 243 / 0.6);
}
.chip.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-tint);
  font-weight: 700;
}

.evidence-strip {
  margin: 26px auto 0;
  max-width: 900px;
  padding: 0 var(--pad);
}
.evidence-strip .frame { margin: 0; }

/* ── measured band ─────────────────────────────────────── */

.measured { padding: clamp(48px, 7vw, 84px) 0 0; }
.measured .band {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.measured .cell {
  background: var(--panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 26px 24px;
}
.measured .v {
  font-weight: 800;
  font-size: var(--step-3);
  letter-spacing: -0.02em;
  color: var(--ink);
}
.measured .cell:nth-child(2) .v { color: var(--accent); }
.measured .k { margin-top: 6px; color: var(--ink-mid); }
.measured .src {
  margin: 14px 4px 0;
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--ink-dim);
}

/* ── depth scrim: reading sections sit on near-solid water ─ */

.depth {
  margin-top: clamp(48px, 7vw, 84px);
  padding-bottom: clamp(56px, 8vw, 104px);
  background: linear-gradient(
    180deg,
    oklch(0.115 0.024 248 / 0),
    oklch(0.115 0.024 248 / 0.92) 260px,
    oklch(0.115 0.024 248 / 0.92) calc(100% - 200px),
    oklch(0.115 0.024 248 / 0)
  );
}
.depth .measured { padding-top: 0; }

/* ── sections ──────────────────────────────────────────── */

section { padding: clamp(56px, 8vw, 104px) 0 0; }
section h2 { font-size: var(--step-2); font-weight: 750; letter-spacing: -0.02em; }
.lede { max-width: var(--measure); color: var(--ink-mid); margin: 16px 0 0; }

.ledger { list-style: none; counter-reset: step; margin: 36px 0 0; padding: 0; display: grid; gap: 0; }
.ledger li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 4.5ch 1fr;
  gap: 18px;
  padding: 20px 4px;
  border-top: 1px solid var(--line);
}
.ledger li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  color: var(--accent);
  font-weight: 700;
  padding-top: 2px;
}
.ledger b { font-size: var(--step-1); font-weight: 700; letter-spacing: -0.01em; }
.ledger p { margin: 6px 0 0; color: var(--ink-mid); max-width: var(--measure); }

/* evidence frame (house component) */
.frame {
  margin-top: 36px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--inset);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  overflow: hidden;
}
.frame .bar {
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--ink-dim);
}
.frame pre {
  margin: 0;
  padding: 18px;
  overflow-x: auto;
  font-size: var(--step--1);
  line-height: 1.7;
  color: var(--ink-mid);
}
.frame .hl { color: var(--accent); }
.frame .hot { color: var(--hot); }
.frame .okc { color: var(--ok); }
.frame .dim { color: var(--ink-dim); }

/* screenshots */
.shots { display: grid; gap: 28px; margin-top: 40px; }
@media (min-width: 920px) {
  .shots { grid-template-columns: 1fr 1fr; }
  .shots .full { grid-column: 1 / -1; }
}
.shot { margin: 0; }
.shot img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.shot figcaption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--ink-dim);
}


/* footer */
footer {
  margin-top: clamp(64px, 9vw, 120px);
  border-top: 1px solid var(--line);
  background: oklch(0.115 0.024 248 / 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 26px;
  padding-block: 26px;
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--ink-dim);
}
footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-left: auto; }
footer a { color: var(--ink-dim); text-decoration: none; }
footer a:hover { color: var(--accent); }

/* entrance: content is visible by default; motion only enhances */
@media (prefers-reduced-motion: no-preference) {
  .hero h1, .hero .what, .cta-row { animation: rise 0.9s cubic-bezier(0.16, 1, 0.3, 1) both; }
  .hero .what { animation-delay: 0.08s; }
  .cta-row { animation-delay: 0.16s; }
  .console-grid .panel { animation: rise 0.9s cubic-bezier(0.16, 1, 0.3, 1) both 0.22s; }
  .console-grid .panel:nth-child(2) { animation-delay: 0.3s; }
  .console-grid .panel:nth-child(3) { animation-delay: 0.38s; }
  @keyframes rise {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: none; }
  }
}