/* obyw.one — compact brand-theme panel
   Single fixed footer button opens a slide-in panel with:
     · Palette (obyw-classic | emerald-hairline)
     · Mode (dark | light)
   No "stage" surface — obyw.one's bg is just var(--bg).
   Mirrors obyw.dev's panel chrome at smaller scale. */

.theme-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(340px, 92vw);
  z-index: 500;
  background: var(--card-bg);
  border-left: 1px solid var(--card-border);
  box-shadow: -12px 0 32px rgba(0, 0, 0, 0.32);
  transform: translateX(100%);
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.theme-panel.open { transform: translateX(0); }
[data-theme="light"] .theme-panel { box-shadow: -12px 0 32px rgba(0, 0, 0, 0.12); }

.panel-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.1rem 1.4rem;
  padding-top: calc(1.1rem + env(safe-area-inset-top, 0));
  border-bottom: 1px solid var(--card-border);
  flex-shrink: 0;
}
.panel-head h2 {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}
.panel-close {
  background: none; border: none;
  font-size: 1.7rem; line-height: 1;
  color: var(--dim); cursor: pointer;
  padding: 0 0.4rem;
  transition: color 0.2s;
}
.panel-close:hover { color: var(--fg); }

.panel-body {
  padding: 1.2rem 1.4rem 2rem;
  padding-bottom: calc(2rem + env(safe-area-inset-bottom, 0));
  overflow-y: auto;
  flex: 1;
}
.panel-group { margin-bottom: 1.8rem; }
.panel-group h3 {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  margin: 0 0 0.7rem;
}
.panel-hint {
  font-size: 0.78rem;
  color: var(--dim);
  margin-bottom: 0.8rem;
  line-height: 1.5;
}

/* Palette swatches */
.theme-swatches {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}
.theme-swatch {
  background: none;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 0.55rem 0.5rem;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, background-color 0.2s;
}
.theme-swatch:hover { border-color: var(--accent); }
.theme-swatch.active {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.04);
}
[data-theme="light"] .theme-swatch.active { background: rgba(0, 0, 0, 0.03); }

.theme-swatch-colors {
  display: flex; gap: 0.3rem;
  margin-bottom: 0.45rem;
}
.theme-swatch-color {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.theme-swatch-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg);
  letter-spacing: 0.04em;
}

/* Mode toggle */
.mode-toggle {
  display: inline-flex;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 3px;
  gap: 2px;
}
.mode-btn {
  background: none; border: none;
  padding: 0.4rem 1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--dim);
  cursor: pointer;
  border-radius: 4px;
  transition: color 0.2s, background-color 0.2s;
}
.mode-btn:hover { color: var(--fg); }
.mode-btn.active {
  background: var(--accent);
  color: var(--bg);
}

/* Backdrop */
.panel-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 450;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.32s ease;
}
.panel-backdrop.visible { opacity: 1; pointer-events: auto; }