@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;700;900&family=Spectral:ital,wght@0,400;0,600;1,400&family=IBM+Plex+Mono:wght@400;600&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:      #0d0a07;
  --paper:   rgba(18,13,7,0.97);
  --panel:   rgba(26,19,10,0.95);
  --ink:     #e2cfa0;
  --muted:   #8a7a5a;
  --faint:   #5a4e38;
  --line:    rgba(180,140,60,0.18);
  --gold:    #d4a843;
  --amber:   #c8872a;
  --node-a:  #1a3a5c;
  --node-b:  #5c1a1a;
  --node-c:  #1a3d2b;
  --node-d:  #3d1a5c;
  --shadow:  0 24px 64px rgba(0,0,0,0.85);
  --radius:  10px;
}

body[data-demo-style="technical"] {
  --bg:      #071012;
  --paper:   rgba(7,16,18,0.97);
  --panel:   rgba(10,24,28,0.95);
  --ink:     #d8edf0;
  --muted:   #82a3aa;
  --faint:   #4e6970;
  --line:    rgba(99,201,216,0.2);
  --gold:    #63c9d8;
  --amber:   #4ea8b7;
  --node-a:  #245b8f;
  --node-b:  #8f3c3c;
  --node-c:  #28704e;
  --node-d:  #6a4d9c;
}

body[data-demo-style="plain"] {
  --bg:      #f4f1e9;
  --paper:   rgba(255,253,247,0.98);
  --panel:   rgba(250,247,239,0.98);
  --ink:     #202326;
  --muted:   #687078;
  --faint:   #9aa1a8;
  --line:    rgba(40,48,54,0.16);
  --gold:    #246b78;
  --amber:   #8b5b18;
  --node-a:  #316fa4;
  --node-b:  #a44c4c;
  --node-c:  #3f8a61;
  --node-d:  #7460a8;
  --shadow:  0 18px 48px rgba(40,48,54,0.18);
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Body ───────────────────────────────────────────────────── */
body {
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(ellipse at top left,    rgba(26,58,92,0.28)  0%, transparent 45%),
    radial-gradient(ellipse at bottom right,rgba(61,26,92,0.18)  0%, transparent 45%),
    linear-gradient(180deg, #0e0b07 0%, #090603 100%);
  font-family: "Spectral", Georgia, "Times New Roman", serif;
  font-size: 15px;
  line-height: 1.7;
}

body[data-demo-style="technical"] {
  background:
    linear-gradient(180deg, #071012 0%, #020608 100%);
}

body[data-demo-style="plain"] {
  background: linear-gradient(180deg, #f4f1e9 0%, #e8e3d7 100%);
}

/* ── Page shell ─────────────────────────────────────────────── */
.page {
  position: relative;
  width: min(1460px, calc(100vw - 24px));
  margin: 12px auto 28px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(212,168,67,0.28);
  background: var(--paper);
  box-shadow: var(--shadow), inset 0 0 80px rgba(212,168,67,0.025);
}

/* ── Nav ────────────────────────────────────────────────────── */
.page-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.nav-spacer {
  flex: 1 1 auto;
}

.style-control {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.style-label {
  font-family: "Cinzel", serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: rgba(212,168,67,0.04);
  color: var(--muted);
  text-decoration: none;
  font-family: "Cinzel", serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: color 0.18s, border-color 0.18s, background 0.18s;
}
.page-link:hover {
  color: var(--gold);
  border-color: rgba(212,168,67,0.5);
  background: rgba(212,168,67,0.08);
}
.page-link.active {
  color: var(--gold);
  border-color: rgba(212,168,67,0.5);
  background: rgba(212,168,67,0.12);
}

/* ── Card ───────────────────────────────────────────────────── */
.card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

/* ── Typography ─────────────────────────────────────────────── */
.page-title {
  font-family: "Cinzel", serif;
  font-size: clamp(18px, 2.2vw, 30px);
  font-weight: 900;
  color: var(--gold);
  letter-spacing: 0.05em;
  text-shadow: 0 0 24px rgba(212,168,67,0.35);
  line-height: 1.2;
  margin-bottom: 8px;
}

.page-subtitle {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
  font-style: italic;
  max-width: 64ch;
}

h2.section-title {
  font-family: "Cinzel", serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

/* ── Chips ──────────────────────────────────────────────────── */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

.chip {
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: rgba(212,168,67,0.06);
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
  cursor: help;
  position: relative;
  transition: border-color 0.15s, color 0.15s;
}
.chip:hover { border-color: rgba(212,168,67,0.4); color: var(--ink); }

/* ── Tooltip pattern (data-tech hover) ──────────────────────── */
[data-tech] { position: relative; }
[data-tech]:hover::after {
  content: attr(data-tech);
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%;
  transform: translateX(-50%);
  background: #14100a;
  border: 1px solid var(--gold);
  color: var(--gold);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-family: "IBM Plex Mono", monospace;
  font-style: normal;
  white-space: nowrap;
  pointer-events: none;
  z-index: 200;
  box-shadow: 0 4px 16px rgba(0,0,0,0.6);
}
/* nodes: tooltip below */
.node[data-tech]:hover::after {
  top: calc(100% + 7px);
  bottom: auto;
}

/* ── Metrics ────────────────────────────────────────────────── */
.metrics-row { display: flex; gap: 8px; flex-wrap: wrap; }

.metric {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: rgba(212,168,67,0.04);
}
.metric-label {
  font-family: "Cinzel", serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.metric-value {
  font-family: "Cinzel", serif;
  font-size: 22px;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: -0.02em;
}

/* ── Buttons / Controls ─────────────────────────────────────── */
.button-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; align-items: center; }

button, select {
  padding: 7px 16px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: rgba(212,168,67,0.06);
  color: var(--ink);
  font-family: "Cinzel", serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
  appearance: none;
}
button:hover, select:hover {
  background: rgba(212,168,67,0.14);
  border-color: rgba(212,168,67,0.5);
  color: var(--gold);
}
button.primary {
  background: rgba(212,168,67,0.14);
  border-color: rgba(212,168,67,0.5);
  color: var(--gold);
}
button.primary:hover { background: rgba(212,168,67,0.25); }
select option { background: #14100a; color: var(--ink); }

/* ── Speed slider ───────────────────────────────────────────── */
.pace-control {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 6px 10px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: rgba(212,168,67,0.04);
}
.pace-label {
  font-family: "Cinzel", serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.pace-ends { font-size: 10px; color: var(--faint); white-space: nowrap; }
input[type=range] {
  flex: 1;
  height: 3px;
  appearance: none;
  background: linear-gradient(90deg, var(--gold) 0%, var(--faint) 100%);
  border-radius: 2px;
  cursor: pointer;
  outline: none;
  border: none;
  padding: 0;
}
input[type=range]::-webkit-slider-thumb {
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 8px rgba(212,168,67,0.6);
  cursor: pointer;
}
input[type=range]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  border: none;
  cursor: pointer;
}

/* ── Phase strip ────────────────────────────────────────────── */
.phase-strip { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }

.phase-chip {
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--line);
  font-family: "Cinzel", serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--faint);
  cursor: help;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.phase-chip.active {
  color: var(--gold);
  border-color: rgba(212,168,67,0.5);
  background: rgba(212,168,67,0.1);
  text-shadow: 0 0 12px rgba(212,168,67,0.4);
}

/* ── Hint text ──────────────────────────────────────────────── */
.hint {
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
  line-height: 1.55;
  margin-top: 8px;
  min-height: 1.2em;
}

/* ── Status badges ──────────────────────────────────────────── */
.selected-badges { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.status-badge {
  padding: 2px 9px;
  border-radius: 3px;
  border: 1px solid var(--line);
  font-family: "Cinzel", serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.status-badge.hot { border-color: rgba(212,168,67,0.5); color: var(--gold); }

/* ── Lifecycle log ──────────────────────────────────────────── */
.lifecycle { display: flex; flex-direction: column; gap: 3px; margin-top: 8px; }
.lifecycle-item {
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
  padding: 3px 0;
  border-bottom: 1px solid rgba(212,168,67,0.07);
  line-height: 1.4;
}

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }

/* ── Two-column grids ───────────────────────────────────────── */
.grid-hero   { display: grid; grid-template-columns: 1.2fr 0.9fr; gap: 14px; margin-bottom: 14px; }
.grid-layout { display: grid; grid-template-columns: 1.3fr 0.95fr; gap: 14px; }

@media (max-width: 900px) {
  .grid-hero, .grid-layout { grid-template-columns: 1fr; }
}