/* ═══════════════════════════════════════════════════════════════════════════
   CODING AGENT BATTLES — Benchmark Briefing Room
   Design: clean editorial, executive-clean, high-signal, no glow soup
   No external dependencies. System font stack only.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Design tokens ─────────────────────────────────────────────────────── */
:root {
  /* Palette — refined slate/indigo, not generic neon */
  --bg:          #09101f;
  --surface:     #0f1829;
  --surface-2:   #141f35;
  --surface-3:   #1a2640;
  --border:      rgba(99, 130, 190, 0.18);
  --border-hi:   rgba(99, 130, 190, 0.38);

  /* Text */
  --ink:         #e8edf8;
  --ink-muted:   #8a9ab8;
  --ink-dim:     #5a6a88;

  /* Signal accents */
  --accent:      #4f8ef7;         /* primary blue */
  --accent-soft: rgba(79,142,247, 0.12);
  --pass:        #34d17a;         /* green for PASS */
  --pass-soft:   rgba(52, 209, 122, 0.10);
  --warn:        #f5a623;         /* amber for caution */
  --warn-soft:   rgba(245, 166, 35, 0.10);
  --cost:        #a78bfa;         /* purple for cost */
  --cost-soft:   rgba(167, 139, 250, 0.10);

  /* Layout */
  --shell:       min(1200px, calc(100% - 48px));
  --radius-sm:   10px;
  --radius-md:   16px;
  --radius-lg:   22px;
  --radius-xl:   28px;

  /* Shadows */
  --shadow-sm:   0 2px 8px rgba(0,0,0,.35);
  --shadow-md:   0 8px 32px rgba(0,0,0,.45);
  --shadow-lg:   0 20px 60px rgba(0,0,0,.55);

  /* Typography */
  --font-sans:   "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono:   "JetBrains Mono", ui-monospace, "Cascadia Code", "Fira Code", monospace;
}

/* ── Reset & base ────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* Subtle grid texture — one layer, tasteful */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.4) 0%, transparent 65%);
  z-index: 0;
}

/* ── Typography scale ───────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.1;
  letter-spacing: -.03em;
  font-weight: 800;
}
p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; }
li { list-style: none; }
code, pre, .mono { font-family: var(--font-mono); }
button { cursor: pointer; border: none; background: none; font: inherit; }
[hidden] { display: none !important; }

/* ── Label overline ────────────────────────────────────────────────────── */
.label-overline {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ── Shell / max-width wrapper ─────────────────────────────────────────── */
.nav-shell, .kpi-shell, .atf-shell, .content-section {
  width: var(--shell);
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

/* ══════════════════════════════════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(9, 16, 31, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 15px;
  color: var(--ink);
  flex-shrink: 0;
}

.brand-badge {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--accent-soft);
  border: 1px solid var(--border-hi);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .04em;
  color: var(--accent);
}

.brand-name { color: var(--ink); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-muted);
  transition: color .15s, background .15s;
}

.nav-links a:hover, .nav-links a:focus {
  color: var(--ink);
  background: var(--surface-2);
}

.nav-gh {
  color: var(--ink) !important;
  background: var(--surface-2) !important;
  border: 1px solid var(--border) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 34px;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink-muted);
  border-radius: 2px;
  transition: background .15s;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  padding: 12px 0 16px;
  border-top: 1px solid var(--border);
  background: rgba(9,16,31,.96);
}

.mobile-nav a {
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-muted);
  transition: color .12s;
}

.mobile-nav a:hover { color: var(--ink); }

/* ══════════════════════════════════════════════════════════════════════════
   ABOVE THE FOLD
   ══════════════════════════════════════════════════════════════════════════ */
.atf-shell {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 40px;
  align-items: center;
  padding: 72px 0 64px;
}

.atf-left {}

.atf-headline {
  font-size: clamp(38px, 5.5vw, 72px);
  letter-spacing: -.045em;
  line-height: 1.02;
  margin: 0 0 20px;
  color: var(--ink);
}

.atf-body {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-muted);
  max-width: 560px;
  margin-bottom: 32px;
}

.inline-link {
  color: var(--accent);
  border-bottom: 1px solid rgba(79,142,247,.4);
  transition: border-color .15s;
}
.inline-link:hover { border-color: var(--accent); }

.atf-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  transition: opacity .15s, transform .15s;
}
.btn-primary:hover { opacity: .88; transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: 999px;
  border: 1px solid var(--border-hi);
  color: var(--ink);
  font-weight: 700;
  font-size: 14px;
  transition: background .15s, transform .15s;
}
.btn-ghost:hover { background: var(--surface-2); transform: translateY(-1px); }

/* Verdict card */
.verdict-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

.verdict-headline {
  font-size: 52px;
  font-weight: 900;
  letter-spacing: -.06em;
  line-height: 1;
  margin: 12px 0 8px;
  color: var(--pass);
}

.verdict-sub {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.5;
  margin-bottom: 24px;
}

.verdict-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.verdict-stat {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.verdict-stat-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-dim);
  margin-bottom: 4px;
}

.verdict-stat-value {
  display: block;
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
}

/* ══════════════════════════════════════════════════════════════════════════
   KPI STRIP
   ══════════════════════════════════════════════════════════════════════════ */
.kpi-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  padding: 0;
}

.kpi-shell {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.kpi-card {
  display: flex;
  flex-direction: column;
  padding: 24px 28px;
  border-right: 1px solid var(--border);
  transition: background .15s;
}
.kpi-card:last-child { border-right: none; }
.kpi-card:hover { background: var(--surface-2); }

.kpi-value {
  font-size: 32px;
  font-weight: 900;
  letter-spacing: -.04em;
  line-height: 1;
  color: var(--ink);
  margin-bottom: 4px;
}

.kpi-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 2px;
}

.kpi-sub {
  font-size: 12px;
  color: var(--ink-dim);
}

/* ══════════════════════════════════════════════════════════════════════════
   CONTENT SECTIONS
   ══════════════════════════════════════════════════════════════════════════ */
.content-section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
.content-section:last-child { border-bottom: none; }

.section-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: end;
  margin-bottom: 36px;
}

.section-title {
  font-size: clamp(24px, 3.5vw, 42px);
  letter-spacing: -.04em;
  color: var(--ink);
  margin-top: 4px;
}

.section-desc {
  font-size: 15px;
  color: var(--ink-muted);
  line-height: 1.7;
}

/* ══════════════════════════════════════════════════════════════════════════
   SCENARIO TABS + PANEL
   ══════════════════════════════════════════════════════════════════════════ */
.tab-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab-btn {
  padding: 10px 20px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-muted);
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  cursor: pointer;
  transition: color .15s, background .15s;
  position: relative;
  bottom: -1px;
}

.tab-btn:hover {
  color: var(--ink);
  background: var(--surface-2);
}

.tab-btn[aria-selected="true"] {
  color: var(--ink);
  background: var(--surface);
  border-color: var(--border);
  border-bottom-color: var(--surface);
}

.scenario-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0 var(--radius-lg) var(--radius-lg) var(--radius-lg);
  padding: 28px 32px;
  box-shadow: var(--shadow-sm);
}

.scenario-switcher {
  display: grid;
  grid-template-columns: minmax(118px, 150px) minmax(0, 1fr) minmax(118px, 150px);
  gap: 12px;
  align-items: stretch;
  margin: -8px 0 26px;
  padding: 12px;
  border: 1px solid rgba(79,142,247,.24);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 14% 0%, rgba(79,142,247,.16), transparent 34%),
    linear-gradient(180deg, rgba(15,24,41,.86), rgba(11,18,32,.62));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}

.scenario-step {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(20,31,53,.72);
  color: var(--ink);
  transition: transform .15s, border-color .15s, background .15s;
}
.scenario-step:hover {
  transform: translateY(-1px);
  border-color: rgba(79,142,247,.55);
  background: rgba(31,50,83,.82);
}
.scenario-step-next { text-align: right; align-items: flex-end; }
.scenario-step-kicker {
  color: var(--ink-dim);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.scenario-step strong { font-size: 15px; letter-spacing: -.02em; }

.scenario-rail-wrap { min-width: 0; }
.scenario-rail-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--ink-dim);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.scenario-rail {
  display: grid;
  grid-template-columns: repeat(12, minmax(42px, 1fr));
  gap: 5px;
}
.scenario-rail-chip {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 7px 4px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(15,24,41,.68);
  color: var(--ink-muted);
  transition: transform .15s, border-color .15s, color .15s, background .15s;
}
.scenario-rail-chip:hover {
  transform: translateY(-1px);
  color: var(--ink);
  border-color: rgba(79,142,247,.55);
}
.scenario-rail-chip.is-active {
  color: var(--ink);
  border-color: rgba(79,142,247,.78);
  background: linear-gradient(180deg, rgba(79,142,247,.24), rgba(79,142,247,.09));
  box-shadow: 0 0 0 1px rgba(79,142,247,.18) inset;
}
.scenario-rail-index { font-size: 9px; color: var(--ink-dim); font-family: var(--font-mono); }
.scenario-rail-id { font-size: 11px; font-weight: 900; letter-spacing: -.02em; }

.scenario-map {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
  padding-top: 10px;
}
.scenario-map summary {
  cursor: pointer;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.scenario-map-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 10px;
}
.scenario-map-card {
  display: grid;
  gap: 6px;
  padding: 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(15,24,41,.74);
  color: var(--ink-muted);
}
.scenario-map-card:hover,
.scenario-map-card.is-active {
  color: var(--ink);
  border-color: rgba(79,142,247,.58);
  background: rgba(31,50,83,.74);
}
.scenario-map-top {
  display: flex;
  justify-content: space-between;
  color: var(--accent);
  font: 11px/1 var(--font-mono);
}
.scenario-map-card strong { font-size: 13px; color: inherit; }
.scenario-map-card p { margin: 0; font-size: 11px; color: var(--ink-dim); }

.scenario-warnings {
  display: grid;
  gap: 8px;
  margin: -8px 0 22px;
}
.scenario-warning {
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(245,166,35,.28);
  background: rgba(245,166,35,.08);
  color: var(--ink-muted);
  font-size: 12px;
}
.scenario-warning strong {
  color: var(--warn);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .1em;
}

/* Scenario header inside panel */
.sp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.sp-meta { flex: 1; min-width: 200px; }
.sp-id {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.sp-name {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--ink);
  margin-bottom: 6px;
}
.sp-summary { font-size: 14px; color: var(--ink-muted); line-height: 1.6; }
.sp-method-note {
  margin-top: 8px;
  font-size: 11px;
  line-height: 1.45;
  color: var(--ink-dim);
}

.sp-winners {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.winner-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  text-align: center;
  min-width: 90px;
}

.winner-badge-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-dim);
}

.winner-badge-value {
  font-size: 15px;
  font-weight: 800;
  color: var(--ink);
}

.winner-badge-note {
  margin-top: 2px;
  padding: 2px 6px;
  border-radius: 999px;
  border: 1px solid rgba(245, 158, 11, .38);
  background: rgba(245, 158, 11, .10);
  color: #b45309;
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* Scenario agent grid */
.sp-agents {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}

.sp-agent-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.spa-name {
  font-size: 14px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 2px;
}

.spa-model {
  font-size: 11px;
  color: var(--ink-dim);
  font-family: var(--font-mono);
  margin-bottom: 10px;
}

.spa-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.spa-metric {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.spa-metric-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-dim);
}

.spa-metric-value {
  font-size: 13px;
  font-weight: 800;
  color: var(--ink);
  font-family: var(--font-mono);
}
.spa-metric-sub {
  display: block;
  margin-top: 2px;
  font: 10px/1.2 var(--font-sans);
  color: var(--ink-dim);
  letter-spacing: .02em;
}

.spa-pills {
  display: flex;
  gap: 4px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
}

.pill-pass   { background: var(--pass-soft);   color: var(--pass); }
.pill-fail   { background: rgba(239,68,68,.12); color: #f87171; }
.pill-red    { background: var(--accent-soft);  color: var(--accent); }
.pill-smoke  { background: var(--warn-soft);    color: var(--warn); }

.badge-legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
  padding: 10px 0 18px;
  color: var(--ink-dim);
  font-size: 12px;
}

.badge-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sp-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.sp-link {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--border-hi);
  padding: 6px 14px;
  border-radius: 999px;
  transition: background .15s, border-color .15s, color .15s;
}
.sp-link:hover { background: var(--accent-soft); }
.sp-link-button {
  cursor: pointer;
  background: transparent;
}
.sp-link-button[aria-pressed="true"] {
  background: var(--accent-soft);
  border-color: rgba(79,142,247,.64);
  color: var(--ink);
}

.artifact-viewer {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(20,31,53,.58);
  overflow: hidden;
}
.artifact-viewer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(15,24,41,.72);
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
}
.artifact-viewer-body {
  max-height: 360px;
  overflow: auto;
  padding: 16px;
}
.artifact-markdown {
  display: grid;
  gap: 10px;
  color: var(--ink-muted);
  font-size: 13px;
  line-height: 1.55;
}
.artifact-markdown h3,
.artifact-markdown h4,
.artifact-markdown h5 {
  color: var(--ink);
  margin-top: 8px;
}
.artifact-markdown ul { padding-left: 18px; }
.artifact-markdown li { list-style: disc; }
.artifact-table-wrap { overflow: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.artifact-table { min-width: 560px; font-size: 12px; }
.artifact-table th,
.artifact-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); }
.artifact-table th { color: var(--ink); background: var(--surface-2); }
.artifact-code {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink-muted);
  font: 12px/1.5 var(--font-mono);
}

/* ══════════════════════════════════════════════════════════════════════════
   AGENT TABLE
   ══════════════════════════════════════════════════════════════════════════ */
.agent-table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: auto;
  box-shadow: var(--shadow-sm);
}

.agent-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.agent-table th {
  padding: 12px 18px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.agent-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  vertical-align: middle;
}

.agent-table tbody tr:last-child td { border-bottom: none; }

.agent-table tbody tr:hover { background: var(--surface-2); }

.at-name { font-weight: 800; font-size: 15px; }
.at-model { font-size: 11px; font-family: var(--font-mono); color: var(--ink-dim); margin-top: 2px; }

.bar-mini-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar-mini-track {
  flex: 1;
  height: 6px;
  background: var(--surface-3);
  border-radius: 999px;
  overflow: hidden;
  min-width: 60px;
  max-width: 120px;
}

.bar-mini-fill {
  height: 100%;
  border-radius: 999px;
  transition: width .4s ease;
}

.bar-fill-speed   { background: var(--accent); }
.bar-fill-process { background: var(--pass); }
.bar-fill-cost    { background: var(--cost); }
.bar-fill-tokens  { background: var(--warn); }

.bar-mini-value {
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--ink-muted);
  white-space: nowrap;
}

.coverage-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}

.coverage-full    { background: var(--pass-soft);   color: var(--pass); }
.coverage-partial { background: var(--warn-soft);   color: var(--warn); }
.coverage-none    { background: rgba(100,100,130,.12); color: var(--ink-dim); }

/* ══════════════════════════════════════════════════════════════════════════
   PARETO / CHART CARDS
   ══════════════════════════════════════════════════════════════════════════ */
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

#paretoChart {
  display: block;
  width: 100%;
  height: 360px;
}

/* ══════════════════════════════════════════════════════════════════════════
   LATEST DETAIL SECTION
   ══════════════════════════════════════════════════════════════════════════ */
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 20px;
  align-items: stretch;
  margin-bottom: 20px;
}

.detail-chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
}

.detail-chart-card.wide {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.chart-label {
  font-size: 13px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 16px;
  letter-spacing: -.01em;
}

.chart-unit {
  font-weight: 600;
  color: var(--ink-muted);
  font-size: 12px;
}

.detail-bars-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#frontierChart {
  display: block;
  width: 100%;
  flex: 1;
  min-height: 520px;
}

.viz-empty {
  min-height: 142px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 22px;
  border: 1px dashed rgba(138, 154, 184, .28);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, rgba(79,142,247,.06), rgba(167,139,250,.04)),
    rgba(20,31,53,.42);
}

.viz-empty-title {
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.viz-empty-body,
.viz-empty-meta {
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.55;
}

.viz-empty-meta {
  color: var(--ink-dim);
}

.bar-note {
  margin-top: 4px;
  padding: 10px 12px;
  border: 1px solid rgba(52,209,122,.16);
  border-radius: var(--radius-sm);
  background: rgba(52,209,122,.06);
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.45;
}

/* Bar list (horizontal bar rows) */
.bar-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bar-row {
  display: grid;
  grid-template-columns: 70px 1fr 70px;
  gap: 10px;
  align-items: center;
}

.bar-row-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-muted);
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bar-track {
  height: 10px;
  background: var(--surface-3);
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
}

.bar-fill-time    { background: var(--accent); }
.bar-fill-quality { background: var(--pass); }
.bar-fill-cost-d  { background: var(--cost); }

.bar-row-value {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--ink-muted);
  text-align: right;
}

/* ══════════════════════════════════════════════════════════════════════════
   SCORE TABLE (under details)
   ══════════════════════════════════════════════════════════════════════════ */
.table-wrap {
  overflow: auto;
  border-radius: var(--radius-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

table {
  border-collapse: collapse;
  width: 100%;
  min-width: 720px;
}

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-dim);
  background: var(--surface-3);
}

tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: rgba(79,142,247,.04); }

/* ══════════════════════════════════════════════════════════════════════════
   EVIDENCE DETAILS / ACCORDION
   ══════════════════════════════════════════════════════════════════════════ */
.evidence-details {
  margin-top: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.evidence-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 24px;
  background: var(--surface);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background .15s;
}
.evidence-summary::-webkit-details-marker { display: none; }
.evidence-summary::before {
  content: "▶";
  font-size: 10px;
  color: var(--ink-muted);
  transition: transform .2s;
}
details[open] > .evidence-summary::before { transform: rotate(90deg); }
.evidence-summary:hover { background: var(--surface-2); }

/* ══════════════════════════════════════════════════════════════════════════
   METHOD SECTION
   ══════════════════════════════════════════════════════════════════════════ */
.method-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.method-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.method-card.accent {
  background: linear-gradient(135deg, rgba(79,142,247,.12) 0%, rgba(52,209,122,.06) 100%), var(--surface);
  border-color: rgba(79,142,247,.35);
}

.method-card-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.3;
}

.method-card p {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.7;
}

.check-list, .dash-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.check-list li, .dash-list li {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.55;
  padding-left: 22px;
  position: relative;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--pass);
  font-weight: 900;
}

.dash-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--warn);
  font-weight: 700;
}

/* Method body (ccusage detail) */
.method-body {
  padding: 24px;
  background: var(--surface-2);
}

.method-formula {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--ink-muted);
  margin: 12px 0;
  overflow-x: auto;
  white-space: pre;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.pricing-card {
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.pricing-card-name {
  font-size: 13px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--accent);
  margin-bottom: 8px;
}

.pricing-card dl {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
}

.pricing-card dt {
  font-size: 12px;
  color: var(--ink-dim);
}

.pricing-card dd {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--ink-muted);
  margin: 0;
  text-align: right;
}

.method-limitations {
  margin-top: 12px;
}

.method-limitations p {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-muted);
  margin-bottom: 6px;
}

.limitations-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.limitations-list li {
  font-size: 13px;
  color: var(--ink-dim);
  line-height: 1.55;
  padding-left: 16px;
  position: relative;
}

.limitations-list li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--ink-dim);
}

/* ══════════════════════════════════════════════════════════════════════════
   ARTIFACT EVIDENCE GRID
   ══════════════════════════════════════════════════════════════════════════ */
.artifact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.artifact-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--ink);
  text-decoration: none;
  transition: border-color .15s, transform .15s, background .15s;
}

.artifact-link:hover {
  border-color: var(--accent);
  background: var(--surface-2);
  transform: translateY(-2px);
}

.artifact-link-id {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent);
}

.artifact-link-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.artifact-link-sub {
  font-size: 12px;
  color: var(--ink-dim);
}

/* ══════════════════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════════════════ */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 28px 0;
  width: var(--shell);
  margin: 0 auto;
  color: var(--ink-dim);
  font-size: 13px;
  border-top: 1px solid var(--border);
}

.site-footer a {
  color: var(--accent);
  transition: opacity .15s;
}
.site-footer a:hover { opacity: .75; }

/* ══════════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 1000px) {
  .atf-shell {
    grid-template-columns: 1fr;
    padding: 48px 0 40px;
  }
  .verdict-card { max-width: 480px; }
  .kpi-shell { grid-template-columns: repeat(2, 1fr); }
  .kpi-card:nth-child(2) { border-right: none; }
  .kpi-card:nth-child(n+3) { border-top: 1px solid var(--border); }
  .method-grid { grid-template-columns: 1fr; }
  .artifact-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-switcher {
    grid-template-columns: 1fr 1fr;
  }
  .scenario-rail-wrap,
  .scenario-map { grid-column: 1 / -1; }
  .scenario-rail { grid-template-columns: repeat(6, minmax(44px, 1fr)); }
  .scenario-map-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-grid { grid-template-columns: 1fr; }
  #frontierChart { min-height: 420px; }
}

@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .section-header { grid-template-columns: 1fr; }
  .sp-agents { grid-template-columns: 1fr 1fr; }
  .scenario-switcher { grid-template-columns: 1fr; }
  .scenario-step-next { text-align: left; align-items: flex-start; }
  .scenario-rail { grid-template-columns: repeat(4, minmax(50px, 1fr)); }
  .scenario-map-grid { grid-template-columns: 1fr; }
  .artifact-grid { grid-template-columns: 1fr; }
  #frontierChart { min-height: 360px; }
  .kpi-shell { grid-template-columns: 1fr 1fr; }
  .atf-headline { font-size: 36px; }
}

@media (max-width: 480px) {
  .sp-agents { grid-template-columns: 1fr; }
  .kpi-shell { grid-template-columns: 1fr; }
  .kpi-card { border-right: none; border-bottom: 1px solid var(--border); }
  .kpi-card:last-child { border-bottom: none; }
  .verdict-stats { grid-template-columns: 1fr; }
  .atf-ctas { flex-direction: column; align-items: flex-start; }
}

/* ── Active Nav Link ── */
.nav-links a.active {
  color: var(--ink);
  background: var(--surface-3);
}

/* ── Scenario Cards Grid ── */
.scenario-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.scenario-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
}

.scenario-card-link:hover {
  transform: translateY(-2px);
}

.scenario-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}

.scenario-card-link:hover .scenario-card {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.scenario-card .sp-meta {
  flex-grow: 1;
}

.scenario-card-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  justify-content: flex-end;
}