/* The Longevity Ledger — editorial actuarial styling.
   Palette + type ported from life-expectancy-estimator.jsx. */
:root {
  --ink: #1c1b18;
  --cream: #f6f2e9;
  --paper: #fdfbf5;
  --oxblood: #8a2f22;
  --line: #d8d0bd;
  --muted: #7a7466;
  --sub: #5a564c;
  --faint: #8b8577;
  --green: #3d6b35;
  --serif: 'Fraunces', Georgia, serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; }

body {
  min-height: 100vh;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--serif);
  padding: 0 0 64px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap { max-width: 880px; margin: 0 auto; padding: 48px 28px 0; }

/* Masthead */
.masthead { border-bottom: 3px double var(--ink); padding-bottom: 20px; margin-bottom: 6px; }
.kicker { font-family: var(--mono); font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--oxblood); margin-bottom: 10px; }
.title { font-size: 42px; font-weight: 600; margin: 0; line-height: 1.05; letter-spacing: -.01em; }
.dek { font-size: 15px; margin: 10px 0 0; color: var(--sub); max-width: 560px; line-height: 1.55; }

/* Layout */
.grid { display: grid; grid-template-columns: minmax(0,5fr) minmax(0,7fr); gap: 36px; margin-top: 34px; }
.section-label { font-family: var(--mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--line); padding-bottom: 8px; margin-bottom: 18px; }

/* Inputs */
.field { margin-bottom: 16px; }
.field-label { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); display: block; margin-bottom: 5px; }
.row { display: flex; gap: 14px; margin-bottom: 22px; align-items: flex-end; }
.row .grow { flex: 1; }

input[type=range] { width: 100%; accent-color: var(--oxblood); }

select {
  width: 100%; padding: 9px 10px; font-size: 14px; font-family: var(--serif);
  background: var(--paper); color: var(--ink); border: 1px solid var(--line);
  border-radius: 2px; cursor: pointer;
}
select:focus-visible { outline: 2px solid var(--oxblood); outline-offset: 1px; }

.toggle { display: flex; border: 1px solid var(--ink); border-radius: 2px; overflow: hidden; }
.toggle button {
  font-family: var(--mono); font-size: 12px; padding: 7px 12px; cursor: pointer; border: none;
  background: transparent; color: var(--ink);
}
.toggle button.active { background: var(--ink); color: var(--cream); }

/* Results */
.headline { display: flex; align-items: baseline; gap: 16px; margin-bottom: 4px; }
.big { font-size: 88px; font-weight: 600; line-height: 1; letter-spacing: -.03em; color: var(--oxblood); }
.headline-note { font-size: 15px; color: var(--sub); line-height: 1.45; padding-bottom: 8px; }
.headline-note .mono { font-family: var(--mono); font-size: 12px; }

.stats { display: grid; grid-template-columns: repeat(3,1fr); border: 1px solid var(--ink); border-radius: 2px; margin: 18px 0 26px; }
.stat { padding: 12px 14px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat-label { font-family: var(--mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.stat-val { font-size: 26px; font-weight: 600; margin-top: 2px; }
.stat-val small { font-size: 15px; }

/* Chart */
.chart { position: relative; height: 230px; }
.chart svg { display: block; width: 100%; height: 230px; }
.chart text.axis { font-family: var(--mono); font-size: 11px; fill: var(--muted); }
.chart text.axis.oxblood { fill: var(--oxblood); }
.chart-guide { position: absolute; width: 1px; background: var(--oxblood); opacity: .55; pointer-events: none; display: none; }
.chart-tip {
  position: absolute; pointer-events: none; display: none; transform: translate(-50%, 0);
  background: var(--paper); border: 1px solid var(--ink); border-radius: 2px;
  font-family: var(--mono); font-size: 12px; line-height: 1.35; padding: 5px 8px; white-space: nowrap; z-index: 2;
}

/* Ledger */
.ledger { margin-top: 26px; }
.ledger-rows { font-family: var(--mono); font-size: 12.5px; }
.ledger-row { display: flex; justify-content: space-between; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--line); }
.ledger-row.sub { border-bottom: 1px dotted var(--line); color: var(--muted); }
.ledger-row.pos { border-bottom: 1px dotted var(--line); color: var(--green); }
.ledger-row.neg { border-bottom: 1px dotted var(--line); color: var(--oxblood); }
.ledger-row span:last-child { white-space: nowrap; }
.ledger-total { display: flex; justify-content: space-between; padding: 8px 0; border-top: 2px solid var(--ink); margin-top: 4px; font-weight: 500; font-family: var(--mono); font-size: 12.5px; }

/* Footer */
.colophon { font-family: var(--mono); font-size: 11px; color: var(--faint); margin-top: 44px; border-top: 1px solid var(--line); padding-top: 14px; line-height: 1.7; }

@media (max-width: 680px) {
  .wrap { padding: 32px 18px 0; }
  .grid { grid-template-columns: 1fr; gap: 30px; }
  .title { font-size: 34px; }
  .big { font-size: 68px; }
}