:root {
  --ink: #1c1712;
  --ink-soft: #4a4036;
  --paper: #f3ead6;
  --paper-dark: #e5d8bb;
  --rule: rgba(70, 90, 140, 0.22);
  --walnut: #2a211b;
  --walnut-2: #3a2e26;
  --oxblood: #8b3a32;
  --oxblood-deep: #6d2c26;
  --sage: #3f6b58;
  --gold: #c4a574;
  --danger: #b42318;
  --ok: #2f6f4f;
  --shadow: 0 18px 50px rgba(28, 23, 18, 0.28);
  --guide-cap: #8b3a32;
  --guide-x: #3f6b58;
  --guide-base: #1c1712;
  --guide-desc: #6b5a8c;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(196, 165, 116, 0.12), transparent 50%),
    var(--walnut);
  color: var(--paper);
  font-family: "Segoe UI", "Iowan Old Style", Palatino, Georgia, serif;
}

button, input, textarea, select {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, var(--walnut-2), #221a15);
  border-right: 1px solid rgba(196, 165, 116, 0.18);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brand h1 {
  margin: 0;
  font-size: 1.55rem;
  letter-spacing: 0.02em;
  font-weight: 650;
}

.brand p {
  margin: 8px 0 0;
  color: var(--gold);
  font-size: 0.92rem;
  line-height: 1.4;
}

nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-btn {
  appearance: none;
  background: transparent;
  color: var(--paper);
  border: 1px solid transparent;
  text-align: left;
  padding: 11px 12px;
  border-radius: 10px;
  cursor: pointer;
}

.nav-btn[aria-current="page"],
.nav-btn:hover {
  background: rgba(243, 234, 214, 0.08);
  border-color: rgba(196, 165, 116, 0.28);
}

.side-actions .hint {
  margin: 0;
}

#save-status {
  color: var(--gold);
}

.main {
  padding: 28px 32px 48px;
}

.panel { display: none; }
.panel.active { display: block; }

.panel h2 {
  margin: 0 0 6px;
  font-size: 1.7rem;
}

.lede {
  margin: 0 0 22px;
  color: #d9cbb0;
  max-width: 70ch;
  line-height: 1.45;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
}

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

label, .label {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gold);
}

input[type="text"],
input[type="number"],
input[type="range"],
select,
textarea {
  background: #1a1511;
  color: var(--paper);
  border: 1px solid rgba(196, 165, 116, 0.28);
  border-radius: 8px;
  padding: 8px 10px;
}

textarea {
  width: 100%;
  min-height: 140px;
  resize: vertical;
  line-height: 1.45;
}

.btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 9px 16px;
  cursor: pointer;
  background: var(--oxblood);
  color: #fff8ee;
  font-weight: 600;
}

.btn:hover { background: var(--oxblood-deep); }

.btn.secondary {
  background: transparent;
  color: var(--paper);
  border: 1px solid rgba(196, 165, 116, 0.4);
}

.btn.ghost {
  background: rgba(243, 234, 214, 0.08);
  color: var(--paper);
}

.btn.danger { background: var(--danger); }

.paper-stage {
  margin-top: 18px;
  background: var(--paper);
  color: var(--ink);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 18px;
}

.canvas-wrap {
  position: relative;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 31px,
      var(--rule) 31px,
      var(--rule) 32px
    ),
    var(--paper);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid #d7c9a8;
}

#capture-canvas,
#compose-canvas {
  display: block;
  width: 100%;
  height: auto;
  touch-action: none;
  cursor: crosshair;
}

.guide-legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 10px 0 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: -1px;
}

.glyph-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(42px, 1fr));
  gap: 6px;
  margin-top: 14px;
}

.glyph-cell {
  aspect-ratio: 1;
  border: 1px solid rgba(196, 165, 116, 0.25);
  background: #1a1511;
  color: var(--paper);
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.05rem;
  position: relative;
}

.glyph-cell.active {
  outline: 2px solid var(--gold);
}

.glyph-cell.has-one { background: #24352c; }
.glyph-cell.has-many { background: #2f6f4f; }

.glyph-cell .count {
  position: absolute;
  right: 4px;
  bottom: 3px;
  font-size: 0.65rem;
  opacity: 0.85;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.status {
  min-height: 1.3em;
  color: var(--gold);
  margin-top: 8px;
}

.missing {
  color: #f2b8b5;
  font-size: 0.95rem;
}

.machine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.card {
  background: rgba(243, 234, 214, 0.05);
  border: 1px solid rgba(196, 165, 116, 0.18);
  border-radius: 14px;
  padding: 16px;
}

.card a {
  color: var(--gold);
}

.card ol {
  color: #d9cbb0;
}

.variant-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.variant-thumb {
  width: 72px;
  height: 88px;
  background: var(--paper);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  color: var(--ink);
}

.stamp-caption {
  font-size: 0.65rem;
  line-height: 1.2;
  padding: 2px 4px 4px;
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.variant-thumb.selected {
  outline: 2px solid var(--oxblood);
}

.hint {
  color: #cbbda4;
  font-size: 0.92rem;
  line-height: 1.4;
}

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; border-bottom: 1px solid rgba(196, 165, 116, 0.18); }
}