/* Shared styles for Finance Calculators */

:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface-1: #fcfcfb;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --gridline: #e1e0d9;
  --baseline: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --accent: #2a78d6;
  --series-1: #2a78d6;  /* contributions */
  --series-2: #1baf7a;  /* interest */
  --series-3: #eda100;
  --series-4: #4a3aa7;
  --good: #006300;
  --crit: #d03b3b;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface-1: #1a1a19;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --gridline: #2c2c2a;
    --baseline: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --accent: #3987e5;
    --series-1: #3987e5;
    --series-2: #199e70;
    --series-3: #c98500;
    --series-4: #9085e9;
    --good: #0ca30c;
    --crit: #d03b3b;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d;
  --surface-1: #1a1a19;
  --text-primary: #ffffff;
  --text-secondary: #c3c2b7;
  --text-muted: #898781;
  --gridline: #2c2c2a;
  --baseline: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --accent: #3987e5;
  --series-1: #3987e5;
  --series-2: #199e70;
  --series-3: #c98500;
  --series-4: #9085e9;
  --good: #0ca30c;
  --crit: #d03b3b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--page);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.5;
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

/* Header / nav */
.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}
.site-header h1 {
  font-size: 1.35rem;
  margin: 0;
}
.site-header a { color: inherit; text-decoration: none; }
.site-header a:hover { text-decoration: underline; }
.header-right { display: flex; align-items: center; gap: 12px; }
.crumb { color: var(--text-muted); font-size: 0.9rem; }
.crumb a { color: var(--text-secondary); }

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface-1);
  color: var(--text-secondary);
  border-radius: 8px;
  padding: 4px 10px;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}
.theme-toggle:hover { color: var(--text-primary); }

/* Cards (landing page) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.card {
  display: block;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  color: inherit;
  text-decoration: none;
}
.card h2 { margin: 0 0 6px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--text-secondary); font-size: 0.9rem; }
a.card:hover { border-color: var(--accent); }
.card.soon { opacity: 0.55; }
.card.soon .tag {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 8px;
}

/* Panels */
.panel {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}
.panel h2 {
  margin: 0 0 14px;
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Form */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px 18px;
}
.field label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.field input, .field select {
  width: 100%;
  font: inherit;
  color: var(--text-primary);
  background: var(--page);
  border: 1px solid var(--baseline);
  border-radius: 8px;
  padding: 7px 10px;
}
.field input:focus, .field select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: transparent;
}

/* Scenario columns (A/B comparison forms) */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px 24px;
}
.scenario-col .field { margin-bottom: 12px; }
.scenario-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  margin: 0 0 12px;
  color: var(--text-secondary);
}
.scenario-title .swatch {
  width: 10px; height: 10px;
  border-radius: 3px;
  display: inline-block;
}

/* Two-column A/B results */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px 28px;
}
.result-col {
  border-top: 3px solid var(--baseline);
  padding-top: 12px;
}
.result-col.col-a { border-top-color: var(--series-1); }
.result-col.col-b { border-top-color: var(--series-2); }
.result-col .tile { margin-bottom: 16px; }
.tile.verdict .value { font-size: 2rem; }
.tile.verdict.ok .value { color: var(--good); }
.tile.verdict.bad .value { color: var(--crit); }

/* Stat tiles */
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}
.tile .label { font-size: 0.82rem; color: var(--text-secondary); }
.tile .value {
  font-size: 1.7rem;
  font-weight: 600;
  margin-top: 2px;
}
.tile .sub { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }
.tile.hero .value { font-size: 2.6rem; }

/* Chart */
.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}
.legend {
  display: flex;
  gap: 18px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.legend .key { display: flex; align-items: center; gap: 6px; }
.legend .swatch {
  width: 10px; height: 10px;
  border-radius: 3px;
  display: inline-block;
}
.chart-box { position: relative; }
.chart-box svg { display: block; width: 100%; height: auto; }

.chart-tip {
  position: absolute;
  pointer-events: none;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  padding: 8px 12px;
  font-size: 0.8rem;
  min-width: 150px;
  display: none;
  z-index: 5;
}
.chart-tip .tip-year { font-weight: 600; margin-bottom: 4px; }
.chart-tip .tip-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--text-secondary);
}
.chart-tip .tip-row .v {
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.chart-tip .tip-row .k { display: flex; align-items: center; gap: 6px; }

/* Table */
.table-scroll { overflow-x: auto; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
table.data th, table.data td {
  text-align: right;
  padding: 6px 12px;
  border-bottom: 1px solid var(--gridline);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
table.data th:first-child, table.data td:first-child { text-align: left; }
table.data th {
  color: var(--text-secondary);
  font-weight: 600;
  border-bottom: 1px solid var(--baseline);
}
table.data tr.hl td { background: color-mix(in srgb, var(--accent) 10%, transparent); }

.note { color: var(--text-muted); font-size: 0.8rem; margin-top: 10px; }