/* TROPTIONS — Institutional Overview (board-room brief) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
 --io-bg: #0a0e17;
 --io-surface: #111827;
 --io-card: #1e293b;
 --io-border: #2d3748;
 --io-text: #e2e8f0;
 --io-text-secondary: #94a3b8;
 --io-text-muted: #64748b;
 --io-green: #10b981;
 --io-gold: #c9a227;
 --io-blue: #3b82f6;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 15px; }
body { font-family: 'Inter', system-ui, sans-serif; background: var(--io-bg); color: var(--io-text); line-height: 1.6; }

.io-header { position: sticky; top: 0; z-index: 100; background: var(--io-surface); border-bottom: 1px solid var(--io-border); }
.io-header-inner { max-width: 1100px; margin: 0 auto; padding: 24px 32px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.io-logo { font-size: 28px; font-weight: 800; letter-spacing: 0.08em; color: var(--io-gold); }
.io-tagline { font-size: 13px; color: var(--io-text-muted); margin-top: 2px; }
.io-readiness-score { display: flex; align-items: center; gap: 16px; }
.io-score-label { font-size: 13px; font-weight: 600; color: var(--io-text-secondary); }
.io-score-date { font-size: 11px; color: var(--io-text-muted); }
.io-score-status { display: inline-block; margin-top: 6px; padding: 2px 10px; border-radius: 10px; font-size: 10px; font-weight: 700; letter-spacing: 0.1em; background: rgba(16,185,129,0.12); color: var(--io-green); border: 1px solid rgba(16,185,129,0.25); }
.io-nav { max-width: 1100px; margin: 0 auto; padding: 0 32px 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.io-nav a { font-size: 12px; color: var(--io-text-secondary); text-decoration: none; padding: 4px 10px; border-radius: 4px; }
.io-nav a:hover { background: var(--io-card); color: var(--io-text); }
.io-nav-full { color: var(--io-gold) !important; font-weight: 600; }

.io-main { max-width: 1100px; margin: 0 auto; padding: 32px; }
.io-section { margin-bottom: 48px; }
.io-section-title { font-size: 22px; font-weight: 700; margin-bottom: 16px; color: var(--io-text); border-bottom: 1px solid var(--io-border); padding-bottom: 8px; }
.io-lead { font-size: 16px; color: var(--io-text-secondary); line-height: 1.7; margin-bottom: 24px; }
.io-highlight-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.io-highlight { background: var(--io-card); border: 1px solid var(--io-border); border-radius: 8px; padding: 20px; text-align: center; }
.io-highlight-value { display: block; font-size: 32px; font-weight: 800; color: var(--io-gold); }
.io-highlight-label { font-size: 12px; color: var(--io-text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

.io-ic-brief { background: var(--io-card); border-left: 4px solid var(--io-gold); border-radius: 0 8px 8px 0; padding: 24px 28px; }
.io-ic-list { list-style: none; }
.io-ic-list li { padding: 10px 0; border-bottom: 1px solid var(--io-border); font-size: 14px; color: var(--io-text-secondary); }
.io-ic-list li:last-child { border-bottom: none; }
.io-ic-list strong { color: var(--io-text); }

.io-dual-box { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.io-box { background: var(--io-card); border: 1px solid var(--io-border); border-radius: 8px; padding: 20px; }
.io-box-title { font-size: 14px; font-weight: 700; color: var(--io-gold); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.io-box-list { list-style: none; }
.io-box-list li { font-size: 13px; color: var(--io-text-secondary); padding: 4px 0; padding-left: 16px; position: relative; }
.io-box-list li::before { content: "▸"; position: absolute; left: 0; color: var(--io-green); }

.io-rail-highlight { background: linear-gradient(135deg, rgba(201,162,39,0.15), rgba(59,130,246,0.1)); border: 1px solid rgba(201,162,39,0.3); border-radius: 8px; padding: 24px; margin: 24px 0; }
.io-rail-highlight h3 { color: var(--io-gold); margin-bottom: 12px; }
.io-proof-table { width: 100%; border-collapse: collapse; font-size: 12px; margin-top: 12px; }
.io-proof-table th, .io-proof-table td { padding: 8px 12px; border: 1px solid var(--io-border); text-align: left; }
.io-proof-table th { background: var(--io-surface); color: var(--io-text-muted); font-weight: 600; }
.io-proof-table code { font-size: 11px; color: var(--io-blue); }

.io-metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.io-metric { background: var(--io-card); border: 1px solid var(--io-border); border-radius: 8px; padding: 16px; }
.io-metric-value { font-size: 24px; font-weight: 800; color: var(--io-text); }
.io-metric-label { font-size: 11px; color: var(--io-text-muted); margin-top: 4px; }
.io-metric-status { font-size: 10px; font-weight: 700; margin-top: 8px; color: var(--io-green); text-transform: uppercase; }

.io-boundary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.io-can { border-left: 4px solid var(--io-green); }
.io-cannot { border-left: 4px solid #ef4444; }

@media (max-width: 768px) {
 .io-highlight-bar, .io-dual-box, .io-metrics-grid, .io-boundary-grid { grid-template-columns: 1fr; }
 .io-header-inner, .io-main { padding: 16px; }
}