:root {
  --bg-canvas: #f7f8f8; --bg-panel: #f3f4f5; --bg-surface: #ffffff; --bg-elevated: #ffffff;
  --surface-02: rgba(0,30,43,0.02); --surface-03: rgba(0,30,43,0.03); --surface-05: rgba(0,30,43,0.04);
  --text-1: #001e2b; --text-2: #1c3a47; --text-3: #5c6c75; --text-4: #8a8f98;
  --accent: #00684a; --accent-fn: #00684a; --accent-hover: #00a34a;
  --accent-dot: #00ed64;
  --link: #0057b7; --link-hover: #003d82;
  --success: #00684a; --error: #dc2626; --warning: #b45309; --info: #0057b7;
  --badge-success-bg: #e6faf0; --badge-error-bg: #fef2f2; --badge-warning-bg: #fffbeb; --badge-info-bg: #eff6ff;
  --border-s: rgba(0,30,43,0.06); --border: rgba(0,30,43,0.10);
  --shadow: rgba(0,30,43,0.04);
  --sans: 'Satoshi', 'SF Pro Display', -apple-system, system-ui, sans-serif;
  --mono: 'Source Code Pro', ui-monospace, 'SF Mono', Menlo, monospace;
  --data: 'JetBrains Mono', 'Source Code Pro', ui-monospace, monospace;
  --r-std: 4px; --r-btn: 6px; --r-card: 8px; --r-panel: 12px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body { font-family: var(--sans); font-size: 15px; font-weight: 400; line-height: 1.60; color: var(--text-2); background: var(--bg-canvas); }

.site-header { background: #001e2b; padding: 3rem 1.5rem 2rem; }
.header-inner { max-width: 960px; margin: 0 auto; display: flex; justify-content: space-between; align-items: flex-end; gap: 1.5rem; flex-wrap: wrap; }
.header-label { font-family: var(--mono); font-size: 14px; font-weight: 500; text-transform: uppercase; letter-spacing: 2px; color: #00ed64; display: block; margin-bottom: 0.5rem; }
.header-title { font-family: var(--sans); font-size: clamp(32px, 5vw, 48px); font-weight: 500; line-height: 1.00; letter-spacing: -1.056px; color: #f7f8f8; }
.header-meta { display: flex; align-items: center; gap: 0.75rem; font-size: 13px; font-weight: 500; color: #8a8f98; }
.header-dot { width: 3px; height: 3px; border-radius: 50%; background: #5c6c75; }

.tab-bar { position: sticky; top: 0; z-index: 100; background: var(--bg-surface); border-bottom: 1px solid var(--border); display: flex; overflow-x: auto; scrollbar-width: none; padding: 0 max(1.5rem, calc((100% - 960px) / 2)); box-shadow: rgba(0,30,43,0.04) 0px 1px 2px; }
.tab-bar::-webkit-scrollbar { display: none; }
.tab-btn { font-family: var(--sans); font-size: 13px; font-weight: 500; color: var(--text-3); background: none; border: none; padding: 0.85rem 1.1rem; cursor: pointer; white-space: nowrap; position: relative; transition: color 150ms var(--ease-out); }
.tab-btn:hover { color: var(--text-1); }
.tab-btn[aria-selected="true"] { color: var(--text-1); }
.tab-btn[aria-selected="true"]::after { content: ''; position: absolute; bottom: 0; left: 1.1rem; right: 1.1rem; height: 2px; background: #00ed64; }

.main-content { padding: 2.5rem 1.5rem 4rem; }
.content-inner { max-width: 960px; margin: 0 auto; }

.section-title { font-family: var(--sans); font-size: 32px; font-weight: 500; line-height: 1.13; letter-spacing: -0.704px; color: var(--text-1); margin-bottom: 0.35rem; }
.section-lead { color: var(--text-3); font-size: 15px; margin-bottom: 2rem; max-width: 640px; }

.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1px; background: var(--border-s); border: 1px solid var(--border); border-radius: var(--r-card); margin-bottom: 2.5rem; overflow: hidden; box-shadow: rgba(0,30,43,0.04) 0px 1px 2px; }
.stat { background: var(--bg-surface); padding: 1.15rem 1.25rem; }
.stat-value { font-family: var(--data); font-size: 24px; font-weight: 500; line-height: 1.2; letter-spacing: -0.5px; color: var(--text-1); font-variant-numeric: tabular-nums; }
.stat-label { font-family: var(--mono); font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 1px; color: var(--text-4); margin-top: 0.25rem; }

.callout { border-left: 2px solid var(--accent); padding: 1rem 1.25rem; margin-bottom: 0.75rem; background: var(--surface-02); border-radius: 0 var(--r-btn) var(--r-btn) 0; }
.callout-title { font-weight: 500; font-size: 14px; color: var(--text-1); margin-bottom: 0.2rem; }
.callout p { font-size: 14px; color: var(--text-3); margin: 0; }
.callout--red { border-left-color: var(--error); }
.callout--green { border-left-color: var(--success); }
.callout--amber { border-left-color: var(--warning); }
.callout--blue { border-left-color: var(--info); }

.badge { display: inline-block; font-family: var(--data); font-size: 11px; font-weight: 500; letter-spacing: 0.5px; padding: 2px 8px; border-radius: var(--r-std); vertical-align: middle; font-variant-numeric: tabular-nums; border: none; }
.badge--confirmed { color: var(--success); background: var(--badge-success-bg); }
.badge--partial { color: var(--warning); background: var(--badge-warning-bg); }
.badge--missing { color: var(--error); background: var(--badge-error-bg); }
.badge--info { color: var(--info); background: var(--badge-info-bg); }
.badge--dark { background: var(--accent-fn); color: #f7f8f8; }

.agent-grid { display: grid; gap: 1px; background: var(--border-s); border: 1px solid var(--border); border-radius: var(--r-card); overflow: hidden; margin-bottom: 2.5rem; box-shadow: rgba(0,30,43,0.04) 0px 1px 2px; }
.agent-card { background: var(--bg-surface); padding: 1.25rem 1.5rem; display: grid; grid-template-columns: 1fr auto; gap: 0.5rem 1rem; align-items: start; transition: background-color 150ms var(--ease-out); }
.agent-card:hover { background: var(--bg-panel); }
.agent-name { font-weight: 500; font-size: 15px; color: var(--text-1); }
.agent-desc { grid-column: 1 / -1; font-size: 14px; color: var(--text-3); }
.agent-evidence { grid-column: 1 / -1; font-family: var(--mono); font-size: 12px; color: var(--text-4); }

.table-wrap { overflow-x: auto; margin-bottom: 2rem; border: 1px solid var(--border); border-radius: var(--r-card); box-shadow: rgba(0,30,43,0.04) 0px 1px 2px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-family: var(--mono); font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-4); padding: 0.75rem 1rem; border-bottom: 1px solid var(--border-s); background: var(--bg-panel); }
td { padding: 0.65rem 1rem; border-bottom: 1px solid var(--border-s); vertical-align: top; color: var(--text-2); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--surface-02); }
td.mono { font-family: var(--data); font-size: 13px; color: var(--text-1); }
.claim-struck { text-decoration: line-through; color: var(--text-4); }

.compare-row { display: grid; grid-template-columns: 1fr 1fr auto; gap: 1rem; padding: 0.85rem 1.25rem; border-bottom: 1px solid var(--border-s); font-size: 14px; align-items: center; }
.compare-row:last-child { border-bottom: none; }
.compare-header { font-family: var(--mono); font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-4); background: var(--bg-panel); }
.compare-claim { color: var(--text-4); text-decoration: line-through; }
.compare-reality { color: var(--text-1); font-weight: 500; }

.subsection { margin-bottom: 2.5rem; }
.subsection-title { font-weight: 500; font-size: 15px; color: var(--text-1); margin-bottom: 0.75rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border-s); }
.subsection p, .subsection li { font-size: 14px; color: var(--text-3); }
.subsection ul { padding-left: 1.25rem; margin: 0.5rem 0; }
.subsection li { margin-bottom: 0.35rem; }

code { font-family: var(--data); font-size: 0.85em; background: rgba(0,30,43,0.05); padding: 0.15em 0.4em; border-radius: 2px; color: #001e2b; }
.rule { border: none; border-top: 1px solid var(--border-s); margin: 2.5rem 0; }

.q-list { list-style: none; padding: 0; counter-reset: q; }
.q-list li { counter-increment: q; padding: 0.65rem 0 0.65rem 2.5rem; border-bottom: 1px solid var(--border-s); font-size: 14px; position: relative; color: var(--text-3); }
.q-list li::before { content: counter(q, decimal-leading-zero); position: absolute; left: 0; font-family: var(--data); font-size: 11px; color: var(--text-4); font-weight: 500; }

.method { display: inline-block; font-family: var(--data); font-size: 11px; font-weight: 500; padding: 2px 6px; border-radius: var(--r-std); min-width: 3rem; text-align: center; letter-spacing: 0.5px; border: none; }
.method--get { color: var(--info); background: var(--badge-info-bg); }
.method--post { color: var(--success); background: var(--badge-success-bg); }
.method--patch { color: var(--warning); background: var(--badge-warning-bg); }
.method--del { color: var(--error); background: var(--badge-error-bg); }

.entity-block { border: 1px solid var(--border); border-radius: var(--r-card); margin-bottom: 1rem; overflow: hidden; box-shadow: rgba(0,30,43,0.04) 0px 1px 2px; }
.entity-header { display: flex; align-items: center; gap: 0.75rem; padding: 0.85rem 1.25rem; background: var(--bg-surface); border-bottom: 1px solid var(--border-s); cursor: pointer; user-select: none; transition: background-color 150ms var(--ease-out); }
.entity-header:hover { background: var(--bg-panel); }
.entity-name { font-weight: 500; font-size: 15px; color: var(--text-1); flex: 1; }
.entity-toggle { font-size: 10px; color: var(--text-4); transition: transform 200ms var(--ease-out); }
.entity-block.is-open .entity-toggle { transform: rotate(90deg); }
.entity-body { display: none; padding: 1rem 1.25rem; background: var(--surface-02); }
.entity-block.is-open .entity-body { display: block; }
.entity-rel { font-size: 13px; color: var(--text-3); margin-top: 0.75rem; padding-top: 0.75rem; border-top: 1px solid var(--border-s); }
.entity-rel strong { color: #00684a; font-weight: 500; }

.flow { display: flex; flex-direction: column; margin-bottom: 2rem; border: 1px solid var(--border); border-radius: var(--r-card); overflow: hidden; box-shadow: rgba(0,30,43,0.04) 0px 1px 2px; }
.flow-step { display: grid; grid-template-columns: 2.5rem 1fr; background: var(--bg-surface); border-bottom: 1px solid var(--border-s); font-size: 14px; color: var(--text-2); }
.flow-step:last-child { border-bottom: none; }
.flow-num { display: flex; align-items: center; justify-content: center; font-family: var(--data); font-size: 11px; color: var(--text-4); background: var(--surface-03); border-right: 1px solid var(--border-s); }
.flow-content { padding: 0.6rem 1rem; }

.ep-group-title { font-family: var(--mono); font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; color: #00684a; padding: 0.6rem 1rem; background: var(--bg-panel); border-bottom: 1px solid var(--border-s); }
.ep-row { display: grid; grid-template-columns: auto 1fr; gap: 0.75rem; padding: 0.4rem 1rem; border-bottom: 1px solid var(--border-s); font-size: 13px; align-items: center; }
.ep-row:last-child { border-bottom: none; }
.ep-row:hover { background: var(--surface-02); }
.ep-path { font-family: var(--data); font-size: 13px; color: var(--text-1); }

.fade-group > * { opacity: 0; transform: translateY(8px); animation: fadeUp 400ms var(--ease-out) forwards; }
.fade-group > *:nth-child(1) { animation-delay: 0ms; }
.fade-group > *:nth-child(2) { animation-delay: 60ms; }
.fade-group > *:nth-child(3) { animation-delay: 120ms; }
.fade-group > *:nth-child(4) { animation-delay: 180ms; }
.fade-group > *:nth-child(5) { animation-delay: 240ms; }
.fade-group > *:nth-child(n+6) { animation-delay: 300ms; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { .fade-group > * { animation: fadeOnly 150ms ease forwards; transform: none; } @keyframes fadeOnly { to { opacity: 1; } } }

.site-footer { max-width: 960px; margin: 0 auto; padding: 1.5rem; font-family: var(--mono); font-size: 11px; font-weight: 500; color: var(--text-4); text-align: center; letter-spacing: 0.5px; border-top: 1px solid var(--border-s); }

@media (max-width: 640px) {
  .site-header { padding: 2rem 1rem 1.5rem; }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .header-title { font-size: 32px; letter-spacing: -0.704px; }
  .main-content { padding: 1.5rem 1rem 3rem; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .compare-row { grid-template-columns: 1fr; gap: 0.25rem; }
  .compare-header { display: none; }
  .agent-card { grid-template-columns: 1fr; }
  .tab-bar { padding: 0 1rem; }
}