/* Channel CAC Ledger: shared styles for index.html and budget.html. */

:root {
  --bg: #f6f6f3;
  --surface: #ffffff;
  --surface-2: #f0f1ee;
  --fg: #1b1e23;
  --muted: #5b616c;
  --line: #e1e3e6;
  --line-strong: #c9ccd2;
  --accent: #2153c0;
  --accent-soft: #e7edfb;
  --scale: #17703f;
  --scale-soft: #e1f3e8;
  --stop: #b0261b;
  --stop-soft: #fbe9e7;
  --keep: #8a5a00;
  --keep-soft: #fbf0d6;
  --few: #4f5664;
  --few-soft: #eaecef;
  --warn: #9a4b00;
  --warn-soft: #fdeedd;
  --shadow: 0 1px 2px rgba(20, 24, 31, 0.06), 0 1px 1px rgba(20, 24, 31, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111317;
    --surface: #191c22;
    --surface-2: #20242b;
    --fg: #e7e9ec;
    --muted: #a1a7b2;
    --line: #2b2f37;
    --line-strong: #3b404a;
    --accent: #86a8ff;
    --accent-soft: #1d2a47;
    --scale: #6fd49a;
    --scale-soft: #16301f;
    --stop: #ff9a8f;
    --stop-soft: #3b1b19;
    --keep: #f0c46a;
    --keep-soft: #33290f;
    --few: #b9bfc9;
    --few-soft: #272b32;
    --warn: #f3b26b;
    --warn-soft: #34240f;
    --shadow: none;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #111317;
  --surface: #191c22;
  --surface-2: #20242b;
  --fg: #e7e9ec;
  --muted: #a1a7b2;
  --line: #2b2f37;
  --line-strong: #3b404a;
  --accent: #86a8ff;
  --accent-soft: #1d2a47;
  --scale: #6fd49a;
  --scale-soft: #16301f;
  --stop: #ff9a8f;
  --stop-soft: #3b1b19;
  --keep: #f0c46a;
  --keep-soft: #33290f;
  --few: #b9bfc9;
  --few-soft: #272b32;
  --warn: #f3b26b;
  --warn-soft: #34240f;
  --shadow: none;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  padding-inline: 16px;
  padding-block: 0;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
}

a { color: var(--accent); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

h1, h2, h3 { line-height: 1.25; margin: 0; }
h1 { font-size: 1.9rem; letter-spacing: -0.01em; }
h2 { font-size: 1.25rem; margin-bottom: 0.35rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 0.6rem; }

/* ------------------------------------------------------------ header */

.top { padding-block: 2rem 1.25rem; }
.eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
}
.pill {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  background: var(--warn-soft);
  color: var(--warn);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.result {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0.9rem 0 0.4rem;
  max-width: 54rem;
}
.sub { color: var(--muted); }
.back { display: inline-block; margin-bottom: 1rem; font-size: 0.95rem; }

/* ------------------------------------------------------------ sections */

section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1rem;
  min-width: 0;
}
.lede { color: var(--muted); max-width: 52rem; }
.check { font-size: 0.92rem; color: var(--muted); margin: 0.75rem 0 0; }
.check.ok::before { content: "Checks out: "; color: var(--scale); font-weight: 600; }
.check.bad { color: var(--stop); font-weight: 600; }
.note { font-size: 0.92rem; color: var(--muted); }
.error-banner {
  background: var(--stop-soft);
  color: var(--stop);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

/* ------------------------------------------------------------ controls */

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem 1.5rem;
  align-items: start;
}
.controls fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
.controls legend, .field-label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  padding: 0;
}
.controls .hint { font-size: 0.85rem; color: var(--muted); margin: 0.4rem 0 0; }

.segmented {
  display: inline-flex;
  flex-wrap: wrap;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
  max-width: 100%;
}
.segmented label { position: relative; }
.segmented input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}
.segmented span {
  display: block;
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
  cursor: pointer;
  border-right: 1px solid var(--line-strong);
  background: var(--surface);
  white-space: nowrap;
}
.segmented label:last-child span { border-right: 0; }
.segmented input:checked + span { background: var(--accent); color: var(--surface); font-weight: 600; }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: -3px; }

.inline { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.money-input { display: inline-flex; align-items: center; gap: 0.25rem; white-space: nowrap; }
input[type="text"], input[type="number"] {
  font: inherit;
  color: var(--fg);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 0.3rem 0.5rem;
  width: 7.5rem;
  max-width: 100%;
}
input[type="text"]:disabled { opacity: 0.55; }
input[aria-invalid="true"] { border-color: var(--stop); }
.field-error { color: var(--stop); font-size: 0.85rem; margin: 0.3rem 0 0; }
input[type="checkbox"] { width: 1rem; height: 1rem; accent-color: var(--accent); }

/* ------------------------------------------------------------ tables */

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-top: 0.75rem;
}
table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
th, td {
  text-align: right;
  padding: 0.55rem 0.6rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  white-space: nowrap;
}
th:first-child, td:first-child { text-align: left; }
thead th {
  white-space: normal;
  vertical-align: bottom;
  min-width: 4.5rem;
  background: var(--surface-2);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
tbody th { text-align: left; font-weight: 600; }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
tr.unknown td, tr.unknown th { color: var(--muted); font-weight: 500; }
tr.total th { background: var(--surface-2); border-top: 1px solid var(--line-strong); }
tr.total td { font-weight: 600; background: var(--surface-2); border-top: 1px solid var(--line-strong); }
tr.group-row td { background: var(--surface-2); font-weight: 600; }
tr.top-cell td { background: var(--accent-soft); }
td.wrap-cell { white-space: normal; text-align: left; min-width: 16rem; max-width: 26rem; }
.cell-sub { display: block; font-size: 0.78rem; color: var(--muted); font-weight: 400; }
.of { color: var(--muted); font-size: 0.82rem; margin-left: 0.25rem; }
.focus { background: var(--accent-soft); }
thead th.focus { color: var(--accent); }
.none-yet { color: var(--muted); font-style: italic; white-space: normal; }
.indent { padding-left: 1.6rem; }

/* ------------------------------------------------------------ badges */

.badge {
  display: inline-block;
  padding: 0.08rem 0.5rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  vertical-align: 0.05em;
}
.badge.scale { background: var(--scale-soft); color: var(--scale); }
.badge.stop { background: var(--stop-soft); color: var(--stop); }
.badge.keep { background: var(--keep-soft); color: var(--keep); }
.badge.few { background: var(--few-soft); color: var(--few); }
.badge.base { background: var(--accent-soft); color: var(--accent); }

/* ------------------------------------------------------------ experiments */

.tally { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.5rem 0 1rem; }
.exp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 30rem), 1fr));
  gap: 0.85rem;
}
.exp {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.exp-head { display: flex; align-items: baseline; gap: 0.5rem; flex-wrap: wrap; }
.exp-id { font-weight: 700; color: var(--muted); font-variant-numeric: tabular-nums; }
.exp-head h3 { flex: 1 1 12rem; min-width: 0; }
.exp-meta { font-size: 0.85rem; color: var(--muted); margin: 0; }
.hyp { margin: 0; font-style: italic; }
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr));
  gap: 0.4rem 1rem;
  margin: 0;
}
.facts div { min-width: 0; }
.facts .wide { grid-column: 1 / -1; }
.facts dt { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }
.facts dd { margin: 0; font-variant-numeric: tabular-nums; }
.rules { margin: 0; padding-left: 1.1rem; font-size: 0.88rem; color: var(--muted); }
.rules li { margin-bottom: 0.15rem; }
.reason {
  margin: 0;
  padding: 0.55rem 0.6rem;
  border-radius: 8px;
  background: var(--surface-2);
  font-size: 0.92rem;
}
.reason.scale { background: var(--scale-soft); }
.reason.stop { background: var(--stop-soft); }
.reason.keep { background: var(--keep-soft); }
.reason.few { background: var(--few-soft); }

/* ------------------------------------------------------------ lists */

.exceptions { list-style: none; margin: 0.5rem 0 0; padding: 0; display: grid; gap: 0.6rem; }
.exceptions li {
  border: 1px solid var(--line);
  border-left: 3px solid var(--warn);
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
  min-width: 0;
}
.exceptions .chip {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--warn);
  margin-right: 0.4rem;
}
.exceptions p { margin: 0.25rem 0 0; }

.plain-list { margin: 0.4rem 0 0; padding-left: 1.2rem; }
.plain-list li { margin-bottom: 0.4rem; max-width: 56rem; }

.next-link {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem 1rem;
  text-decoration: none;
  color: var(--fg);
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.next-link strong { color: var(--accent); font-size: 1.05rem; }

/* ------------------------------------------------------------ budget stats */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 0.75rem;
  margin: 0.75rem 0;
}
.stat { border: 1px solid var(--line); border-radius: 10px; padding: 0.8rem 1rem; min-width: 0; }
.stat .label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); }
.stat .value { font-size: 1.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .detail { font-size: 0.85rem; color: var(--muted); }

/* ------------------------------------------------------------ footer */

footer {
  color: var(--muted);
  font-size: 0.88rem;
  padding-block: 1rem 2.5rem;
  text-align: center;
}

@media (max-width: 520px) {
  h1 { font-size: 1.55rem; }
  .result { font-size: 1.08rem; }
  section { padding: 1rem; }
  .top { padding-block: 1.25rem 1rem; }
}
th.left { text-align: left; }
#founder-rate { width: 4.5rem; }
thead th:first-child { min-width: 9rem; }

/* Channel table: let labels wrap so every column fits at desktop width. */
#channel-table tbody th { white-space: normal; min-width: 9rem; max-width: 12.5rem; }
#channel-table .cell-sub { white-space: normal; }
#channel-table td.cost-col { min-width: 7rem; white-space: normal; }
.badge.stack { display: block; width: max-content; margin: 0.25rem 0 0 auto; }
tr.group-row th { background: var(--surface-2); text-align: left; }
.field-label { display: block; }
#alloc-table td.indent, #alloc-table tbody th { white-space: normal; min-width: 8rem; max-width: 12rem; }