/* ── Travi interactive financial model ─────────────────────────────────────
   Full-width standalone page. Mono numbers, severity-coded scenarios. */

:root {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --ink: #101828;
  --navy: #0a1628;
  --slate: #4a5a6c;
  --slate-light: #8494a6;
  --border: #e1e7ee;
  --border-dark: #c9d3de;
  --accent: #0077b6;
  --mono: 'JetBrains Mono', 'IBM Plex Mono', 'Courier New', monospace;
  --sans: 'Inter', system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); }
body {
  font-family: var(--mono);
  background-image: radial-gradient(circle, #d4dce4 0.8px, transparent 0.8px);
  background-size: 22px 22px;
}
.model { max-width: 1480px; margin: 0 auto; padding: 0 clamp(16px, 3vw, 40px) 60px; }

/* masthead */
.mast { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; padding: 22px 0 18px; border-bottom: 2px solid var(--navy); margin-bottom: 20px; }
.mast-back { font-size: 10.5px; letter-spacing: .1em; color: var(--accent); text-decoration: none; border: 1px solid var(--border-dark); background: var(--surface); border-radius: 6px; padding: 8px 12px; white-space: nowrap; }
.mast-back:hover { border-color: var(--accent); }
.mast-title { flex: 1; min-width: 260px; }
.mast-title h1 { font-family: 'Playfair Display', serif; font-size: clamp(19px, 2.6vw, 27px); margin: 0 0 2px; color: var(--navy); }
.mast-title p { margin: 0; font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--slate-light); }
.mast-badge { font-size: 10px; letter-spacing: .12em; border: 1.5px solid; border-radius: 14px; padding: 5px 13px; background: var(--surface); }

/* scenario cards */
.cards { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin-bottom: 14px; }
.card { text-align: left; cursor: pointer; display: flex; flex-direction: column; gap: 7px; background: var(--surface); border: 1.5px solid var(--border); border-radius: 10px; padding: 13px 14px; font-family: var(--mono); transition: border-color .12s, transform .12s, box-shadow .12s; }
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 22px -14px rgba(10, 22, 40, .4); }
.card-active { box-shadow: 0 10px 24px -14px rgba(10, 22, 40, .45); }
.card-tag { font-size: 8.5px; font-weight: 700; letter-spacing: .16em; }
.card-name { font-family: var(--sans); font-size: 15px; font-weight: 700; color: var(--ink); }
.card-stats { display: flex; flex-wrap: wrap; gap: 4px 10px; font-size: 8.5px; letter-spacing: .05em; color: var(--slate-light); }
.card-stats b { color: var(--ink); font-weight: 600; margin-left: 2px; }
.card-blurb { font-family: var(--sans); font-size: 11px; line-height: 1.45; color: var(--slate); }

/* KPI strip */
.kpis { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 1px; background: var(--border-dark); border: 1px solid var(--border-dark); border-top: 3px solid var(--accent); border-radius: 10px; overflow: hidden; margin-bottom: 14px; }
.kpi { background: var(--surface); padding: 13px 14px; }
.kpi-label { font-size: 8.5px; letter-spacing: .12em; color: var(--slate-light); margin-bottom: 6px; }
.kpi-value { font-size: clamp(15px, 1.6vw, 21px); font-weight: 700; color: var(--navy); }

/* sliders */
.sliders { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 16px; }
.sliders summary { cursor: pointer; list-style: none; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding: 13px 16px; font-size: 10.5px; font-weight: 700; letter-spacing: .12em; color: var(--navy); }
.sliders summary::before { content: '▸'; color: var(--accent); }
.sliders[open] summary::before { content: '▾'; }
.sliders-state { font-weight: 400; letter-spacing: .04em; text-transform: uppercase; font-size: 9px; color: var(--slate-light); }
.sliders-reset { margin-left: auto; font-family: var(--mono); font-size: 9.5px; letter-spacing: .06em; color: var(--accent); background: none; border: 1px solid var(--border-dark); border-radius: 5px; padding: 5px 10px; cursor: pointer; }
.sliders-reset:hover { border-color: var(--accent); }
.sliders-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px 22px; padding: 4px 16px 18px; }
.slider { display: flex; flex-direction: column; gap: 5px; }
.slider-hd { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; font-size: 9.5px; letter-spacing: .04em; color: var(--slate); }
.slider-hd b { font-size: 11.5px; color: var(--navy); white-space: nowrap; }
.slider input[type='range'] { width: 100%; accent-color: var(--accent); height: 22px; }

/* layout grid + panels */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px 12px; min-width: 0; }
.panel-hd { font-size: 10.5px; font-weight: 700; letter-spacing: .12em; color: var(--navy); margin-bottom: 12px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.panel-sub { font-weight: 400; font-size: 9px; letter-spacing: .06em; color: var(--slate-light); text-transform: uppercase; }

/* unit economics */
.ue-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding-bottom: 6px; }
.ue-cell { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; }
.ue-label { font-size: 8.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--slate-light); margin-bottom: 6px; }
.ue-value { font-size: 21px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.ue-note { font-family: var(--sans); font-size: 10.5px; color: var(--slate); }

/* sensitivity */
.sens { width: 100%; border-collapse: collapse; font-size: 11px; }
.sens th, .sens td { border: 1px solid var(--border); padding: 9px 10px; text-align: center; }
.sens thead th { background: #f2f5f8; font-size: 9px; letter-spacing: .06em; color: var(--slate); }
.sens tbody th { background: #f2f5f8; font-size: 9px; letter-spacing: .06em; color: var(--slate); white-space: nowrap; }
.sens td { font-weight: 600; }
.sens-base { background: #fbfcfd; outline: 2px solid var(--accent); outline-offset: -2px; }
.sens-delta { display: block; font-size: 8.5px; font-weight: 400; color: var(--slate-light); margin-top: 3px; }
.sens-note { font-family: var(--sans); font-size: 10.5px; color: var(--slate); line-height: 1.5; margin: 10px 0 4px; }

.model-foot { font-family: var(--sans); font-size: 10.5px; color: var(--slate-light); text-align: center; margin-top: 26px; line-height: 1.6; }

/* responsive — must hold at 800px and below */
@media (max-width: 1150px) {
  .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 980px) {
  .grid2 { grid-template-columns: 1fr; }
}
@media (max-width: 800px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: 1fr 1fr; }
  .ue-grid { grid-template-columns: 1fr; }
  .sens { font-size: 10px; }
  .sens th, .sens td { padding: 7px 5px; }
}