:root {
  color-scheme: light;
  --ink: #111219;
  --muted: #667085;
  --paper: #f3eedf;
  --panel: rgba(255, 251, 243, 0.92);
  --line: rgba(17, 18, 25, 0.12);
  --hot: #ca4a1b;
  --warn: #f2b84b;
  --blue: #2252d1;
  --green: #14795b;
  --plum: #5d376d;
  --shadow: 0 28px 80px rgba(17, 18, 25, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 18%, rgba(34, 82, 209, 0.14), transparent 26%),
    radial-gradient(circle at 82% 16%, rgba(202, 74, 27, 0.16), transparent 22%),
    linear-gradient(90deg, rgba(17,18,25,.04) 1px, transparent 1px) 0 0 / 44px 44px,
    linear-gradient(0deg, rgba(17,18,25,.03) 1px, transparent 1px) 0 0 / 44px 44px,
    var(--paper);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  line-height: 1.45;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(18px, 4vw, 44px);
  background: rgba(243, 238, 223, 0.86);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  text-transform: lowercase;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.brand img { width: 34px; height: 34px; object-fit: contain; }

nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font: 700 13px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

main { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.72fr);
  gap: clamp(24px, 5vw, 68px);
  align-items: center;
  padding: clamp(54px, 8vw, 112px) 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font: 800 12px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

h1, h2, h3 { margin: 0; line-height: 0.95; }
h1 { font-size: clamp(50px, 8vw, 108px); max-width: 980px; }
h2 { font-size: clamp(30px, 4.8vw, 64px); max-width: 720px; }
h3 { font-size: clamp(22px, 3vw, 34px); }

.lead {
  max-width: 760px;
  margin: 24px 0 0;
  color: #313746;
  font-size: clamp(18px, 2vw, 25px);
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.button,
.mode-tab,
.scenario-tab {
  border: 1px solid var(--line);
  border-radius: 999px;
  min-height: 48px;
  padding: 12px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  font: 800 14px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.03em;
  background: rgba(255, 255, 255, 0.72);
}

.button:hover,
.mode-tab:hover,
.scenario-tab:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(17, 18, 25, 0.12);
}

.button.primary,
.mode-tab.active,
.scenario-tab.active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.hero-panel,
.control-card,
.mission-card,
.scenario-shell,
.graph-section,
.timeline-section,
.next-step {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: clamp(22px, 4vw, 40px);
  position: relative;
  overflow: hidden;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(17, 18, 25, 0.08);
  pointer-events: none;
}

.meter {
  display: grid;
  place-items: center;
  width: min(100%, 280px);
  aspect-ratio: 1;
  margin: 10px auto 22px;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(255,251,243,0.92) 0 58%, transparent 59%),
    conic-gradient(var(--green) 0 34%, var(--blue) 34% 70%, var(--warn) 70% 86%, var(--hot) 86% 100%);
}

.meter span {
  display: block;
  color: var(--muted);
  font: 800 11px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.meter strong { display: block; font-size: clamp(58px, 8vw, 102px); }

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.snapshot-grid div {
  min-height: 84px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
}

.snapshot-grid span {
  display: block;
  color: var(--muted);
  font: 800 11px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.snapshot-grid b {
  display: block;
  margin-top: 8px;
  font-size: 20px;
}

.panel-note {
  margin: 16px 0 0;
  color: #343b49;
  font-size: 16px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 18px;
  padding-bottom: 22px;
}

.control-card,
.mission-card,
.scenario-shell,
.graph-section,
.timeline-section,
.next-step {
  padding: clamp(18px, 3vw, 34px);
}

.section-head { margin-bottom: 18px; }

.mode-switch,
.scenario-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.mode-summary { margin-top: 18px; }

.status-card {
  border: 1px solid var(--line);
  padding: 18px;
  background: rgba(255,255,255,0.72);
}

.status-card.safe { border-left: 6px solid var(--green); }
.status-card.blocked { border-left: 6px solid var(--hot); }

.status-card b {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.status-card p,
.status-card ul {
  margin: 0;
  color: #2f3645;
}

.status-card ul { padding-left: 18px; }

.snapshot-box {
  margin-top: 18px;
  border: 1px solid var(--line);
  background: #12141b;
  color: #e7edf8;
  padding: 16px;
}

.snapshot-label {
  margin: 0 0 12px;
  color: #aab3c6;
  font: 800 11px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font: 13px/1.55 "SFMono-Regular", ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
}

.mission-body,
.scenario-panel,
.next-body {
  display: grid;
  gap: 14px;
}

.mission-grid,
.decision-grid,
.graph-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.mission-card,
.strip-card,
.decision-card,
.graph-card,
.timeline-list li,
.next-card,
.detail-card {
  background: rgba(255,255,255,0.74);
  border: 1px solid var(--line);
}

.detail-card,
.decision-card,
.graph-card,
.next-card {
  padding: 16px;
}

.detail-card small,
.decision-card small,
.graph-card small,
.next-card small {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font: 800 11px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.detail-card p,
.decision-card p,
.graph-card p,
.next-card p,
.timeline-list p {
  margin: 0;
  color: #313847;
}

.strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 14px 0 24px;
}

.strip-card { padding: 18px; }

.strip-card span {
  display: block;
  color: var(--muted);
  font: 800 11px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.strip-card strong {
  display: block;
  margin-top: 8px;
  font-size: 24px;
}

.scenario-shell,
.graph-section,
.timeline-section,
.next-step {
  margin-top: 24px;
}

.scenario-panel {
  margin-top: 18px;
}

.headline-card {
  padding: 22px;
  background:
    linear-gradient(135deg, rgba(34, 82, 209, 0.1), rgba(93, 55, 109, 0.06)),
    rgba(255,255,255,0.78);
  border: 1px solid var(--line);
}

.headline-card .risk {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(202,74,27,0.12);
  color: var(--hot);
  font: 800 12px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.decision-card.safe { border-left: 6px solid var(--green); }
.decision-card.warn { border-left: 6px solid var(--warn); }
.decision-card.blocked { border-left: 6px solid var(--hot); }

.decision-card ul,
.next-card ul {
  margin: 0;
  padding-left: 18px;
  color: #313847;
}

.graph-card .lane {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(34, 82, 209, 0.1);
  color: var(--blue);
  font: 800 11px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.graph-path {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.graph-path span {
  padding: 8px 10px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.86);
  font: 700 12px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.timeline-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.timeline-list li {
  position: relative;
  padding: 16px 18px 16px 74px;
}

.timeline-list li::before {
  content: attr(data-minute);
  position: absolute;
  left: 18px;
  top: 16px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  font: 800 11px/1.2 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0.08em;
}

.timeline-list strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.next-card.blocked { border-left: 6px solid var(--hot); }

footer {
  padding: 28px 16px 44px;
  text-align: center;
  color: var(--muted);
  font: 700 13px/1.5 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* live system section */
.live-system-section { padding: clamp(48px, 8vw, 96px) 0; }
.section-desc { color: var(--muted); max-width: 640px; margin-top: 8px; }
.live-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; margin-top: 36px; }
.live-loading { grid-column: 1 / -1; color: var(--muted); font-style: italic; }
.live-score-card { grid-column: 1 / -1; display: flex; align-items: center; gap: 32px; padding: 28px 32px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); }
.live-score-number { font-size: 72px; font-weight: 900; line-height: 1; color: var(--green); min-width: 100px; }
.live-score-number.warn { color: var(--warn); }
.live-score-number.bad { color: var(--hot); }
.live-score-info { flex: 1; }
.live-score-label { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 6px; }
.live-score-state { font-size: 20px; font-weight: 700; text-transform: lowercase; margin-bottom: 4px; }
.live-score-meta { font-size: 13px; color: var(--muted); }
.live-metric-card { padding: 20px 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; }
.live-metric-card small { display: block; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.09em; color: var(--muted); margin-bottom: 8px; }
.live-metric-card strong { display: block; font-size: 26px; font-weight: 800; margin-bottom: 4px; }
.live-metric-card p { margin: 0; font-size: 13px; color: var(--muted); }
.live-incidents-card { grid-column: 1 / -1; padding: 24px 28px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; }
.live-incidents-card h3 { margin: 0 0 16px; font-size: 16px; font-weight: 700; }
.live-incident { display: grid; grid-template-columns: 140px 1fr; gap: 10px 16px; padding: 12px 0; border-top: 1px solid var(--line); align-items: start; font-size: 14px; }
.live-incident:first-of-type { border-top: none; }
.live-incident-class { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; padding: 3px 8px; border-radius: 6px; background: rgba(17,18,25,.08); display: inline-block; }
.live-incident-class.medium { background: rgba(242,184,75,.22); }
.live-incident-class.low { background: rgba(20,121,91,.14); }
.live-incident-class.high { background: rgba(202,74,27,.18); }
.live-incident-resolution { grid-column: 2; color: var(--green); font-size: 13px; }
.live-guardrails { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px; padding: 20px 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; }
.live-guardrails small { display: block; width: 100%; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.09em; color: var(--muted); margin-bottom: 8px; }
.guardrail-pill { font-size: 12px; padding: 4px 10px; background: rgba(20,121,91,.12); color: var(--green); border-radius: 20px; font-weight: 600; }
.live-timestamp { grid-column: 1 / -1; font-size: 12px; color: var(--muted); text-align: right; margin-top: -8px; }

@media (max-width: 960px) {
  .hero,
  .workspace,
  .mission-grid,
  .decision-grid,
  .graph-grid,
  .strip {
    grid-template-columns: 1fr;
  }

  h1 { font-size: clamp(42px, 13vw, 72px); }
  h2 { font-size: clamp(30px, 8vw, 48px); }
}

@media (max-width: 640px) {
  main { width: min(100% - 20px, 1200px); }
  .topbar { padding-inline: 12px; }
  .timeline-list li { padding-left: 18px; padding-top: 70px; }
  .timeline-list li::before { top: 18px; }
}