/* ============================================================
   AI Chat Cloud - Settings Page Styles (settings.css)
   Dedicated settings page layout, cards, and form sections.
   ============================================================ */

.settings-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top bar */
.settings-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.settings-topbar .logo { font-size: 1.1rem; }
.topbar-right { display: flex; align-items: center; gap: var(--space-3); }

/* Layout */
.settings-wrap {
  flex: 1;
  display: flex;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-5);
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
}

.settings-nav {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: 90px;
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.settings-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px 14px;
  border-radius: var(--r-md);
  color: var(--text-2);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--dur) var(--ease);
}
.settings-nav a:hover { background: var(--surface-hover); color: var(--text); }
.settings-nav a.active { background: var(--surface-2); color: var(--text); }
.settings-nav a svg { width: 18px; height: 18px; }

.settings-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.settings-header { margin-bottom: var(--space-2); }
.settings-header h1 { font-size: 1.8rem; font-weight: 800; letter-spacing: -0.02em; }
.settings-header p { color: var(--text-2); margin-top: var(--space-2); }

/* Setting card */
.setting-card {
  padding: var(--space-6);
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--border);
}
.setting-card-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.setting-card-icon {
  width: 40px; height: 40px;
  border-radius: var(--r-md);
  background: var(--brand-gradient-soft);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}
.setting-card-icon svg { width: 20px; height: 20px; }
.setting-card-head h2 { font-size: 1.1rem; font-weight: 700; }
.setting-card-head p { font-size: 0.85rem; color: var(--text-3); }

/* Form grid */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
.form-grid .full { grid-column: 1 / -1; }

/* Model row with refresh */
.model-row { display: flex; gap: var(--space-2); }
.model-row .select { flex: 1; }
.refresh-models-btn {
  flex-shrink: 0;
  width: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: all var(--dur) var(--ease);
}
.refresh-models-btn:hover { background: var(--surface-hover); color: var(--text); border-color: var(--border-strong); }
.refresh-models-btn svg { width: 18px; height: 18px; }
.refresh-models-btn:disabled svg { animation: spin 0.7s linear infinite; }

/* Settings actions */
.settings-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

/* Danger zone */
.danger-zone {
  border-color: rgba(239, 68, 68, 0.3);
}
.danger-zone .setting-card-icon { color: var(--danger); background: rgba(239, 68, 68, 0.1); }

/* About section */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
}
.about-stat {
  padding: var(--space-4);
  border-radius: var(--r-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.about-stat .label { font-size: 0.78rem; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.05em; }
.about-stat .value { font-size: 1.4rem; font-weight: 700; margin-top: 4px; }

/* Responsive */
@media (max-width: 768px) {
  .settings-wrap { flex-direction: column; padding: var(--space-4); }
  .settings-nav {
    width: 100%;
    position: static;
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: var(--space-3);
  }
  .settings-nav a { white-space: nowrap; }
  .form-grid { grid-template-columns: 1fr; }
  .settings-topbar { padding: var(--space-3) var(--space-4); }
}