:root {
  --ink: #10231d;
  --muted: #5e6f68;
  --line: #d9e1dc;
  --paper: #f5f2e9;
  --panel: #fffdf7;
  --green: #156b50;
  --green-dark: #0c4d39;
  --lime: #d5f169;
  --orange: #f08c5a;
  --red: #a74234;
  --mono: "JetBrains Mono", monospace;
  --sans: "DM Sans", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 max(20px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(16, 35, 29, .14);
  background: rgba(245, 242, 233, .9);
  backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 8px; background: var(--ink); color: var(--lime); font: 600 12px var(--mono); }
.topbar-actions, .hero-actions, .action-row { display: flex; align-items: center; gap: 12px; }
.mode-pill { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); color: var(--muted); font-size: 13px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 4px rgba(240, 140, 90, .16); }

.hero { padding: 92px 0 58px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(300px, .75fr); gap: 72px; align-items: end; }
.eyebrow, .card-kicker { margin-bottom: 18px; color: var(--green); font: 600 11px var(--mono); letter-spacing: .13em; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 820px; margin-bottom: 24px; font-size: clamp(48px, 6vw, 82px); line-height: .98; letter-spacing: -.055em; }
.hero-copy { max-width: 720px; margin-bottom: 32px; color: var(--muted); font-size: 19px; line-height: 1.55; }
.primary-button, .secondary-button, .danger-button, .text-button { border: 0; cursor: pointer; }
.primary-button, .secondary-button, .danger-button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 0 18px; border-radius: 8px; font-weight: 700; text-decoration: none; }
.primary-button { background: var(--ink); color: white; box-shadow: 0 6px 0 var(--green); }
.primary-button:hover { background: var(--green-dark); }
.primary-button:disabled { cursor: not-allowed; opacity: .45; box-shadow: none; }
.secondary-button { border: 1px solid var(--line); background: transparent; color: var(--ink); }
.danger-button { background: #f7dfd9; color: var(--red); }
.text-button { padding: 7px 0; background: transparent; color: var(--green); font-size: 13px; font-weight: 700; }
.brief-card, .run-panel, .action-card, .audit-card, .metric-card, .proof-card { border: 1px solid var(--line); background: var(--panel); }
.brief-card { padding: 28px; border-radius: 16px; box-shadow: 14px 14px 0 rgba(16, 35, 29, .08); }
.brief-label { color: var(--muted); font: 500 11px var(--mono); text-transform: uppercase; }
.brief-card h2 { margin: 8px 0 24px; font-size: 27px; }
.brief-card dl { margin: 0; }
.brief-card dl div { display: grid; grid-template-columns: 88px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); }
.brief-card dt { color: var(--muted); font-size: 13px; }
.brief-card dd { margin: 0; font-size: 14px; font-weight: 600; }
.truth-note { margin: 18px 0 0; padding: 12px; border-left: 3px solid var(--orange); background: #fff5eb; color: #694531; font-size: 12px; line-height: 1.5; }

.run-panel { padding: 36px; border-radius: 20px; }
.section-heading, .card-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; }
.section-heading .eyebrow { margin-bottom: 8px; }
.section-heading h2 { margin: 0; font-size: clamp(28px, 4vw, 42px); letter-spacing: -.035em; }
#run-id { font-family: var(--mono); font-size: .7em; letter-spacing: -.03em; }
.stage-badge { padding: 9px 14px; border-radius: 99px; background: var(--lime); color: var(--green-dark); font: 600 12px var(--mono); }
.pipeline { display: grid; grid-template-columns: repeat(8, 1fr); gap: 4px; margin: 34px 0; }
.pipeline-step { position: relative; padding-top: 17px; color: #87938e; font: 500 10px var(--mono); text-align: center; }
.pipeline-step::before { content: ""; position: absolute; inset: 0 0 auto; height: 5px; border-radius: 99px; background: var(--line); }
.pipeline-step.complete, .pipeline-step.active { color: var(--ink); }
.pipeline-step.complete::before { background: var(--green); }
.pipeline-step.active::before { background: var(--lime); box-shadow: inset 0 0 0 1px var(--green); }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.metric-card { display: flex; min-height: 142px; flex-direction: column; padding: 20px; border-radius: 12px; }
.metric-card span { color: var(--muted); font-size: 13px; }
.metric-card strong { margin: auto 0 5px; font: 600 29px var(--mono); }
.metric-card small { color: var(--muted); }
.metric-card.accent { background: var(--ink); color: white; }
.metric-card.accent span, .metric-card.accent small { color: #b9c9c2; }
.workspace-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); gap: 16px; margin-top: 16px; }
.action-card, .audit-card { min-height: 390px; padding: 26px; border-radius: 14px; }
.card-heading h3 { margin: 0; font-size: 25px; }
.card-heading.compact { align-items: center; }
.card-kicker { margin-bottom: 7px; }
.step-number { color: #b4beb9; font: 600 32px var(--mono); }
.action-card > p { max-width: 660px; margin: 32px 0; color: var(--muted); line-height: 1.65; }
.approval-box { margin: -10px 0 24px; padding: 16px; border: 1px solid #d6c74e; border-radius: 10px; background: #fffbe1; }
.approval-box label { display: block; margin-bottom: 7px; font-size: 12px; font-weight: 700; }
.approval-box input { width: 100%; padding: 11px; border: 1px solid #c9bc50; border-radius: 7px; background: white; }
.approval-box p { margin: 9px 0 0; color: #665c1d; font-size: 12px; }
.action-feedback { min-height: 22px; margin: 18px 0 0 !important; color: var(--green) !important; font: 500 12px var(--mono); }
.audit-list { max-height: 300px; margin: 22px 0 0; padding: 0; overflow: auto; list-style: none; }
.audit-list li { display: grid; grid-template-columns: 10px 1fr auto; gap: 10px; align-items: start; padding: 12px 0; border-top: 1px solid var(--line); }
.audit-pip { width: 7px; height: 7px; margin-top: 6px; border-radius: 50%; background: var(--green); }
.audit-list strong { display: block; margin-bottom: 3px; font-size: 13px; }
.audit-list span, .audit-list time { color: var(--muted); font: 400 10px var(--mono); }

.evidence-section, .architecture-section { padding: 90px 0 0; }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 32px; }
.proof-card { position: relative; min-height: 180px; padding: 22px; border-radius: 12px; }
.proof-card .proof-status { display: inline-block; margin-bottom: 28px; padding: 5px 8px; border-radius: 99px; background: #edf0ee; color: var(--muted); font: 600 9px var(--mono); }
.proof-card.passed .proof-status { background: #dff0e5; color: var(--green-dark); }
.proof-card strong { display: block; margin-bottom: 10px; font-size: 16px; }
.proof-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.architecture-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr; gap: 10px; align-items: stretch; margin-top: 32px; }
.arch-node { min-height: 145px; padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.arch-node.approval { border-color: #bfae25; background: #fffbe1; }
.arch-node span { display: block; margin-bottom: 28px; color: var(--green); font: 600 10px var(--mono); }
.arch-node strong, .arch-node small { display: block; }
.arch-node small { margin-top: 6px; color: var(--muted); line-height: 1.4; }
.arch-arrow { align-self: center; color: var(--green); font-size: 24px; }
footer { display: flex; justify-content: space-between; gap: 24px; margin-top: 100px !important; padding: 30px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer p { margin: 0; }

@media (max-width: 900px) {
  .hero-grid, .workspace-grid { grid-template-columns: 1fr; }
  .hero-grid { gap: 38px; }
  .metric-grid, .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .architecture-flow { grid-template-columns: 1fr; }
  .arch-arrow { transform: rotate(90deg); justify-self: center; }
}

@media (max-width: 600px) {
  .shell { width: min(100% - 24px, 1180px); }
  .topbar { height: 60px; padding-inline: 12px; }
  .brand > span:last-child, .mode-pill { display: none; }
  .hero { padding: 58px 0 38px; }
  h1 { font-size: 45px; }
  .hero-copy { font-size: 16px; }
  .hero-actions, .action-row { align-items: stretch; flex-direction: column; }
  .brief-card { box-shadow: 8px 8px 0 rgba(16, 35, 29, .08); }
  .run-panel { padding: 20px 14px; border-radius: 14px; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .pipeline { grid-template-columns: repeat(4, 1fr); row-gap: 16px; }
  .metric-grid, .proof-grid { grid-template-columns: 1fr 1fr; }
  .metric-card { min-height: 125px; padding: 15px; }
  .metric-card strong { font-size: 23px; }
  .action-card, .audit-card { min-height: auto; padding: 20px 16px; }
  .audit-card .card-heading { align-items: flex-start; flex-direction: column; }
  footer { flex-direction: column; }
}

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