/* Mosaic Design System — see DESIGN.md for rationale */

:root {
  --bg: #11100D;
  --surface: #1A1814;
  --surface-2: #24211C;
  --surface-3: #2E2A24;
  --text: #F0E6D6;
  --text-muted: #8C8378;
  --text-dim: #5C554D;
  --accent: #D94A2F;
  --accent-hover: #E5593E;
  --accent-soft: #A63B27;
  --line: #3A342C;
  --success: #4A9E6D;
  --warning: #D4A843;
  --error: #D94A2F;
  --info: #5B8AB5;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;
  --font-display: 'Fraunces', serif;
  --font-body: 'Instrument Sans', sans-serif;
  --font-mono: 'Geist Mono', monospace;
}

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

html, body { height: 100%; }

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

/* Subtle grain texture */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── Homepage / Canvas ─────────────────────────────────── */

.canvas-page {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.canvas-container {
  width: 100%;
  height: 100%;
}

.canvas-overlay {
  position: absolute;
  top: 24px;
  left: 24px;
  z-index: 10;
  pointer-events: none;
}

.canvas-overlay h1 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  line-height: 1.1;
}

.canvas-overlay .stats {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 8px;
}

.canvas-overlay .stats .accent { color: var(--accent); font-weight: 500; }

.canvas-activity {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 280px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.activity-item {
  font-size: 12px;
  padding: 8px 12px;
  background: rgba(26, 24, 20, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
  color: var(--text-muted);
}

.activity-item .coord {
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 500;
}

.activity-item .price {
  font-family: var(--font-mono);
  color: var(--text);
}

.activity-item .time { color: var(--text-dim); font-size: 11px; }

.canvas-cta {
  position: absolute;
  bottom: 24px;
  right: 24px;
  z-index: 10;
}

.canvas-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 8px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(26, 24, 20, 0.9);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  z-index: 10;
  backdrop-filter: blur(8px);
}

.canvas-footer .accent { color: var(--accent); }

/* ── Buttons ───────────────────────────────────────────── */

.btn {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s ease-out;
  letter-spacing: 0.02em;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }

.btn-secondary {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-secondary:hover { background: var(--surface-3); }

.btn-large {
  font-size: 15px;
  padding: 12px 28px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Forms ─────────────────────────────────────────────── */

.input-group { display: flex; flex-direction: column; gap: 6px; }

.input-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.input-group input,
.input-group textarea {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

.input-group input:focus,
.input-group textarea:focus {
  border-color: var(--accent);
}

.input-group textarea { resize: vertical; min-height: 80px; }

/* ── Tile Page ─────────────────────────────────────────── */

.tile-page {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 24px;
}

.tile-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

@media (max-width: 640px) {
  .tile-detail { grid-template-columns: 1fr; }
}

.tile-image {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface);
}

.tile-image img { width: 100%; height: 100%; object-fit: cover; }

.tile-info { display: flex; flex-direction: column; gap: 20px; }

.tile-info h1 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
}

.tile-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tile-meta strong { color: var(--text); }

.tile-prompt {
  font-size: 14px;
  color: var(--text-muted);
  font-style: italic;
  padding: 16px;
  background: var(--surface);
  border-left: 2px solid var(--accent);
  border-radius: var(--radius-sm);
}

.tile-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}

/* ── Purchase Modal ────────────────────────────────────── */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(17, 16, 13, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 32px;
  width: 420px;
  max-width: 90vw;
}

.modal h2 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 4px;
}

.modal .coords {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.price-block {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.price-block .price {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
}

.price-block .phase {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.finality {
  font-size: 11px;
  color: var(--text-dim);
  text-align: center;
  margin-top: 16px;
  letter-spacing: 0.03em;
}

/* ── Status Page ───────────────────────────────────────── */

.status-page {
  max-width: 480px;
  margin: 120px auto;
  padding: 24px;
  text-align: center;
}

.status-page h1 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
}

.status-page .generating-indicator {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 24px;
}

/* ── Admin ─────────────────────────────────────────────── */

.admin-page {
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 24px;
}

.admin-page h1 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.admin-table th, .admin-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.admin-table th {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Alerts ────────────────────────────────────────────── */

.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  border-left: 3px solid;
  background: var(--surface);
  margin-bottom: 16px;
}
.alert-success { border-color: var(--success); }
.alert-warning { border-color: var(--warning); }
.alert-error { border-color: var(--error); }
.alert-info { border-color: var(--info); }

/* ── Utility ───────────────────────────────────────────── */

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.font-mono { font-family: var(--font-mono); }
.font-display { font-family: var(--font-display); }