/* btcmode.com — v3 signal landing page */

:root {
  --bg: #0a0a0a;
  --bg-elev: #111111;
  --border: #1f1f1f;
  --border-strong: #2a2a2a;
  --fg: #e8e8e8;
  --fg-dim: #9a9a9a;
  --fg-faint: #6b6b6b;
  --accent: #f7931a;       /* bitcoin orange */
  --accent-dim: #b86a13;
  --green: #4ade80;
  --red: #f87171;
  --yellow: #fbbf24;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent-dim);
}
a:hover { color: #ffb04a; }

code, pre, .mono { font-family: var(--mono); }

/* ── layout ─────────────────────────────────────────────────── */

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 72px 0;
  border-top: 1px solid var(--border);
}
section:first-of-type { border-top: none; }

h1, h2, h3 { font-family: var(--mono); font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: clamp(32px, 6vw, 56px); line-height: 1.1; margin: 0 0 16px; }
h2 { font-size: 28px; margin: 0 0 24px; color: var(--fg); }
h2::before { content: "// "; color: var(--accent); }
h3 { font-size: 18px; margin: 32px 0 12px; color: var(--fg-dim); text-transform: uppercase; letter-spacing: 0.08em; }

p { margin: 0 0 16px; color: var(--fg); }
.lead { font-size: 18px; color: var(--fg-dim); max-width: 720px; }

ul { padding-left: 20px; margin: 0 0 16px; }
li { margin-bottom: 6px; color: var(--fg); }

hr { border: 0; border-top: 1px solid var(--border); margin: 32px 0; }

/* ── hero ───────────────────────────────────────────────────── */

.hero {
  padding: 96px 0 64px;
  border-top: none;
}
.hero .tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  background: rgba(247, 147, 26, 0.08);
  border: 1px solid rgba(247, 147, 26, 0.25);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 .accent { color: var(--accent); }

/* ── KPI tiles ──────────────────────────────────────────────── */

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 40px 0 0;
}
.kpi {
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 20px;
}
.kpi .label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.kpi .value {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 600;
  color: var(--fg);
}
.kpi .value.pos { color: var(--green); }

/* ── env tiles (the box style from the screenshot) ──────────── */

.env-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 24px;
}
.env-tile {
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 16px 20px;
  background: var(--bg-elev);
  font-family: var(--mono);
  font-size: 14px;
  color: var(--fg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.env-tile .k { color: var(--fg-dim); }
.env-tile .v { color: var(--accent); font-weight: 600; }

/* ── tables ─────────────────────────────────────────────────── */

.table-wrap { overflow-x: auto; margin: 16px 0 32px; }

table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 14px;
}
th, td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
th {
  font-weight: 600;
  color: var(--fg-faint);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border-strong);
}
.num { text-align: right; font-variant-numeric: tabular-nums; }
th.num { padding-right: 14px; }
/* numeric columns shrink to content so headers + values stay close together */
table th.num, table td.num { width: 1%; white-space: nowrap; }
tr.total { background: rgba(247, 147, 26, 0.04); }
tr.total td { font-weight: 600; color: var(--fg); }
tr:hover td { background: rgba(255, 255, 255, 0.02); }

.pos { color: var(--green); }
.neg { color: var(--red); }
.warn { color: var(--yellow); }

/* ── signal table specifics ────────────────────────────────── */

.signal-name { color: var(--fg); font-weight: 600; }
.signal-name.long { color: var(--green); }
.signal-name.short { color: var(--red); }
.signal-name.wait { color: var(--fg-dim); }
.signal-name.gated { color: var(--fg-faint); text-decoration: line-through; }
.cond { color: var(--fg-dim); white-space: normal; font-size: 13px; }

/* ── symbol chips ───────────────────────────────────────────── */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 24px;
}
.chip {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--fg);
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  padding: 6px 12px;
  border-radius: 4px;
}
.chip.loser { color: var(--red); border-color: rgba(248, 113, 113, 0.3); }
.chip.winner { color: var(--green); border-color: rgba(74, 222, 128, 0.25); }

/* ── callout ────────────────────────────────────────────────── */

.callout {
  border-left: 3px solid var(--accent);
  background: rgba(247, 147, 26, 0.04);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 6px 6px 0;
}
.callout.warn {
  border-left-color: var(--yellow);
  background: rgba(251, 191, 36, 0.04);
}
.callout p { margin: 0; color: var(--fg-dim); }
.callout strong { color: var(--fg); }

/* ── caveats list ───────────────────────────────────────────── */

.caveats {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}
.caveats li {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 18px;
  margin-bottom: 8px;
  background: var(--bg-elev);
  color: var(--fg-dim);
  font-size: 14px;
}
.caveats li::before {
  content: "⚠ ";
  color: var(--yellow);
  margin-right: 4px;
}

/* ── footer ─────────────────────────────────────────────────── */

footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--fg-faint);
  font-family: var(--mono);
  font-size: 13px;
}
footer .sep { margin: 0 12px; color: var(--border-strong); }

/* ── status bar (sticky liveness heartbeat) ────────────────── */

.status-bar {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 24px;
  background: rgba(10, 10, 10, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fg-faint);
  flex-shrink: 0;
}
.status-dot.live  {
  background: var(--green);
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.6);
  animation: status-pulse 2s ease-in-out infinite;
}
.status-dot.stale { background: var(--yellow); box-shadow: 0 0 6px rgba(251, 191, 36, 0.5); }
.status-dot.down  { background: var(--red); }
.status-label {
  color: var(--fg);
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 11px;
}
.status-meta { color: var(--fg-faint); }
@keyframes status-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.45; }
}

/* ── TOC sidebar ────────────────────────────────────────────── */

section[id], header.hero { scroll-margin-top: 56px; }

.toc {
  position: fixed;
  top: 72px;
  left: 24px;
  width: 200px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding: 16px 12px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 12px;
  z-index: 50;
}
.toc-title {
  color: var(--fg-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 10px;
  padding: 0 10px 8px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.toc-link {
  display: block;
  padding: 6px 10px;
  color: var(--fg-dim);
  border-left: 2px solid transparent;
  border-bottom: none;
  border-radius: 0 4px 4px 0;
  text-decoration: none;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
}
.toc-link:hover { color: var(--fg); background: rgba(255, 255, 255, 0.03); }
.toc-link.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(247, 147, 26, 0.06);
}

.toc-toggle { display: none; }

@media (max-width: 1320px) {
  .toc { display: none; }
  .toc.open {
    display: block;
    top: 90px;
    left: 50%;
    transform: translateX(-50%);
    width: min(280px, calc(100vw - 32px));
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  }
  .toc-toggle {
    display: block;
    position: fixed;
    top: 46px;
    left: 16px;
    z-index: 51;
    background: var(--bg-elev);
    color: var(--fg);
    border: 1px solid var(--border-strong);
    padding: 8px 12px;
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 13px;
    cursor: pointer;
  }
  .toc-toggle:hover { border-color: var(--accent); color: var(--accent); }
}

/* ── filter chips ──────────────────────────────────────────── */

.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 8px 0 16px;
}
.filter-btn {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg-elev);
  color: var(--fg-dim);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
}
.filter-btn:hover { color: var(--fg); border-color: var(--fg-faint); }
.filter-btn[aria-pressed="true"] {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}
.filter-btn .count {
  opacity: 0.7;
  margin-left: 4px;
  font-variant-numeric: tabular-nums;
}

/* ── category badges ───────────────────────────────────────── */

.cat-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.cat-badge.large {
  color: var(--green);
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.25);
}
.cat-badge.small {
  color: var(--yellow);
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.25);
}

/* ── pagination ────────────────────────────────────────────── */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 8px 0 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}
.page-btn {
  font-family: var(--mono);
  font-size: 14px;
  background: var(--bg-elev);
  color: var(--fg);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 4px 12px;
  cursor: pointer;
  min-width: 40px;
}
.page-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.page-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.row-hidden { display: none; }
.num.dim    { color: var(--fg-faint); }

/* Clickable rows */
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: rgba(247, 147, 26, 0.04); }
tr.clickable:focus { outline: 1px solid var(--accent); outline-offset: -1px; }
tr.clickable td:first-child::after {
  content: " ›";
  color: var(--fg-faint);
  font-weight: 700;
  margin-left: 4px;
  opacity: 0;
  transition: opacity 0.12s;
}
tr.clickable:hover td:first-child::after,
tr.clickable:focus td:first-child::after { opacity: 1; color: var(--accent); }

/* ── modal ─────────────────────────────────────────────────── */

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal[hidden] { display: none; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.modal-card {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  width: min(720px, 100%);
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7);
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--fg-dim);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-family: var(--mono);
  line-height: 1;
}
.modal-close:hover { color: var(--accent); border-color: var(--accent); }
.modal-header {
  padding: 24px 56px 12px 28px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 {
  margin: 0;
  font-family: var(--mono);
  font-size: 20px;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.modal-header h3::before { content: ""; }
.modal-body { padding: 20px 28px 28px; }
.modal-loading,
.modal-error {
  padding: 32px 0;
  text-align: center;
  color: var(--fg-dim);
  font-family: var(--mono);
  font-size: 14px;
}
.modal-error p { margin: 0; }

/* Stats grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}
.stat {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.stat-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fg-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.stat-value {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}
.stat-value.pos  { color: var(--green); }
.stat-value.neg  { color: var(--red); }
.stat-value.warn { color: var(--yellow); }

/* Chart */
.chart-wrap {
  margin-top: 16px;
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.chart-title {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.chart-window {
  color: var(--fg-faint);
  text-transform: none;
  letter-spacing: 0;
  margin-left: 8px;
}
#modal-chart svg {
  width: 100%;
  height: auto;
  display: block;
  font-family: var(--mono);
}
#modal-chart .grid     { stroke: var(--border); stroke-width: 1; stroke-dasharray: 2 4; }
#modal-chart .baseline { stroke: var(--fg-faint); stroke-width: 1; stroke-dasharray: 4 4; opacity: 0.5; }
#modal-chart .axis     { stroke: var(--border-strong); stroke-width: 1; }
#modal-chart .axis-label { fill: var(--fg-faint); font-size: 10px; }
#modal-chart .line     { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linejoin: round; }
#modal-chart .area     { fill: var(--accent); opacity: 0.08; }

.modal-note {
  margin-top: 16px;
  padding: 12px 14px;
  background: rgba(251, 191, 36, 0.06);
  border-left: 3px solid var(--yellow);
  border-radius: 0 6px 6px 0;
  font-size: 12px;
  color: var(--fg-dim);
}
.modal-note strong { color: var(--yellow); }

@media (max-width: 640px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .modal-header { padding: 20px 48px 10px 18px; }
  .modal-body   { padding: 16px 18px 22px; }
  .modal-header h3 { font-size: 18px; }
}

.footnote {
  font-size: 12px;
  color: var(--fg-faint);
  margin-top: 12px;
  line-height: 1.5;
}
.footnote code { color: var(--fg-dim); }
.footnote strong { color: var(--fg-dim); }

/* coverage banner under the results h2 */
.coverage-line {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
  background: rgba(247, 147, 26, 0.04);
  border-left: 3px solid var(--accent);
  padding: 8px 14px;
  margin: 8px 0 16px;
  border-radius: 0 6px 6px 0;
}

/* Window column states */
.window-cell        { font-variant-numeric: tabular-nums; }
.window-cell.warn   { color: var(--yellow); }
.window-cell.neg    { color: var(--red); }

/* ── responsive ─────────────────────────────────────────────── */

@media (max-width: 720px) {
  section { padding: 56px 0; }
  .container { padding: 0 18px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .env-grid { grid-template-columns: 1fr; }
  .kpi .value { font-size: 22px; }
  .hero { padding: 64px 0 32px; }
  h2 { font-size: 22px; }
  th, td { padding: 8px 10px; font-size: 12px; }
}