/* ============================================================
   KATALIST — settings.css
   Settings view: sections, cards, theme/accent pickers, plan
   ============================================================ */

.settings-section { margin-bottom: 28px; }

.settings-section-title {
  font-size: 11px; font-weight: 500; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted);
  margin-bottom: 10px; padding: 0 2px;
}

.settings-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.settings-row:last-child { border-bottom: none; }

.settings-row-label { flex: 0 0 220px; min-width: 0; }
.settings-label { font-size: 13px; color: var(--text-primary); font-weight: 500; }
.settings-hint { font-size: 11px; color: var(--text-muted); margin-top: 2px; line-height: 1.4; }

.settings-row-control {
  display: flex; align-items: center;
  flex: 1; justify-content: flex-end;
}

.settings-value {
  font-size: 12px; color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* Plan badge */
.plan-badge {
  font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 3px 10px;
  border-radius: 20px; border: 1px solid var(--border-strong);
  color: var(--text-secondary);
}
.plan-badge.basic   { color: var(--text-accent); border-color: var(--accent-glow); background: var(--accent-dim); }
.plan-badge.premium { color: var(--accent);      border-color: var(--accent-glow); background: var(--accent-dim); }

.plan-limits { display: flex; flex-direction: column; gap: 6px; }
.plan-limit-row {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--text-secondary);
}
.plan-tier {
  font-size: 10px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 2px 8px;
  border-radius: 20px; min-width: 60px; text-align: center;
}
.plan-tier.free    { background: var(--bg-elevated); color: var(--text-muted); }
.plan-tier.basic   { background: var(--accent-dim); color: var(--text-accent); }
.plan-tier.premium { background: var(--accent-dim); color: var(--accent); }

/* Theme grid */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 12px 18px 18px;
}

.theme-card {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  cursor: pointer; background: none;
  padding: 6px; border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition: border-color 0.15s ease;
}
.theme-card:hover { border-color: var(--border-strong); }
.theme-card.active { border-color: var(--accent); }

.theme-card-preview {
  width: 100%; aspect-ratio: 16/9;
  border-radius: 3px;
  background: var(--pc-bg);
  position: relative; overflow: hidden;
}
.theme-card-preview::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 28%;
  background: var(--pc-surface);
}
.theme-card-preview::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 4px;
  background: var(--pc-accent);
}

.theme-card-name {
  font-size: 10px; font-family: var(--font-mono);
  color: var(--text-muted);
  transition: color 0.15s ease;
  white-space: nowrap;
}
.theme-card:hover .theme-card-name { color: var(--text-primary); }
.theme-card.active .theme-card-name { color: var(--accent); }

@media (max-width: 900px) {
  .theme-grid { grid-template-columns: repeat(3, 1fr); }
}
/* Upgrade plan grid */
.upgrade-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 780px;
}
.upgrade-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex; flex-direction: column; gap: 20px;
  transition: border-color 0.2s;
}
.upgrade-card.current { border-color: var(--accent); }
.upgrade-card-header { display: flex; flex-direction: column; gap: 6px; }
.upgrade-card-name {
  font-size: 11px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted);
}
.upgrade-card-price {
  font-size: 2em; font-weight: 700; color: var(--text-primary);
  font-family: var(--font-display, var(--font-mono));
  line-height: 1;
}
.upgrade-card-price span { font-size: 0.45em; font-weight: 400; color: var(--text-muted); }
.upgrade-card-storage {
  font-size: 0.95em; color: var(--text-secondary);
}
.upgrade-card-badge {
  font-size: 10px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 2px 8px;
  border-radius: 20px; align-self: flex-start;
  background: var(--accent-dim); color: var(--accent);
}
.upgrade-card-btn { margin-top: auto; }

@media (max-width: 700px) {
  .upgrade-grid { grid-template-columns: 1fr; }
}

/* Advanced Settings nav row hover */
.settings-nav-row {
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.settings-nav-row:hover {
  background: var(--bg-elevated);
  border-color: var(--border-strong);
}

.btn-link-muted {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.8em;
  color: var(--text-muted);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  opacity: 0.5;
  transition: opacity 0.15s;
}
.btn-link-muted:hover { opacity: 1; }

@media (max-width: 480px) {
  .theme-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile: stack settings rows */
@media (max-width: 768px) {
  .settings-row { flex-direction: column; align-items: flex-start; gap: 10px; }
  .settings-row-label { flex: none; }
  .settings-row-control { justify-content: flex-start; }
}