/* ── Settings page: toggle switch ─────────────────────────────── */
.settings-toggle-label {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
}
.settings-toggle-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}
.settings-toggle-track {
  position: relative;
  display: inline-block;
  width: 2.75rem;
  height: 1.5rem;
  border-radius: 999px;
  background: var(--surface-3);
  border: 1px solid var(--border);
  transition: background 0.2s, border-color 0.2s;
}
.settings-toggle-input:checked ~ .settings-toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}
.settings-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1.125rem;
  height: 1.125rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  transition: transform 0.2s;
}
.settings-toggle-input:checked ~ .settings-toggle-track .settings-toggle-thumb {
  transform: translateX(1.25rem);
}
.settings-toggle-label:focus-within .settings-toggle-track {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── Settings page: custom select dropdown ─────────────────────── */
.s-select {
  position: relative;
  flex-shrink: 0;
  min-width: 7rem;
}

.s-select-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  padding: 0.375rem 0.625rem;
  background: var(--surface-3);
  color: var(--text);
  border: 1px solid var(--silver-border);
  border-radius: var(--r-sm);
  font-family: var(--font-mono, monospace);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  white-space: nowrap;
}
.s-select-btn:hover { border-color: var(--gold-border); background: var(--gold-dim); }
.s-select-btn:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.s-select[aria-disabled="true"] .s-select-btn { opacity: 0.38; cursor: not-allowed; pointer-events: none; }

.s-select-chevron {
  flex-shrink: 0;
  opacity: 0.6;
  transition: transform 0.15s;
}
.s-select[aria-expanded="true"] .s-select-chevron { transform: rotate(180deg); }

.s-select-list {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  z-index: 200;
  min-width: 100%;
  margin: 0;
  padding: 0.25rem;
  list-style: none;
  background: var(--surface-raised, var(--surface-3));
  border: 1px solid var(--silver-border);
  border-radius: var(--r-sm);
  box-shadow: 0 4px 16px rgba(0,0,0,0.35);
  display: none;
}
.s-select[aria-expanded="true"] .s-select-list { display: block; }

.s-select-opt {
  padding: 0.35rem 0.625rem;
  border-radius: calc(var(--r-sm) - 2px);
  font-family: var(--font-mono, monospace);
  font-size: 0.8125rem;
  color: var(--text-label);
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
  white-space: nowrap;
}
.s-select-opt:hover { background: var(--gold-dim); color: var(--text); }
.s-select-opt[aria-selected="true"] { color: var(--accent); background: var(--accent-dim); }
.s-select-opt.s-select-focused { background: var(--gold-dim); color: var(--text); outline: none; }

[data-theme="rich"] .s-select-btn { border-color: var(--border-strong); }
[data-theme="rich"] .s-select-list { border-color: var(--border-strong); }

/* ── Challenge timer pill ─────────────────────────────────────── */
@keyframes chal-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.45); }
  50%       { box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
}

.chal-timer {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.15rem 0.55rem;
  border-radius: var(--r-sm, 3px);
  background: var(--surface-3);
  border: 1px solid var(--border);
  font-family: var(--font-mono, monospace);
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
  align-self: center;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
  pointer-events: none;
  user-select: none;
}
.chal-timer svg { flex-shrink: 0; opacity: 0.65; }

.chal-hidden { display: none !important; }

.chal-warn {
  color: #d97706;
  border-color: rgba(217, 119, 6, 0.45);
  background: rgba(217, 119, 6, 0.12);
}
.chal-danger {
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.45);
  background: rgba(239, 68, 68, 0.12);
  animation: chal-pulse 1s ease-in-out infinite;
}
.chal-success {
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.35);
  background: rgba(34, 197, 94, 0.1);
}