/* RSSPipe - High-Precision Metallic Settings Styles */

.settings-container {
  display: flex;
  height: calc(100vh - var(--header-height));
  width: 100vw;
  background: var(--bg-app);
  overflow: hidden;
}

.settings-sidebar {
  width: 240px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  padding: 1.25rem 0.75rem;
  gap: 4px;
  flex-shrink: 0;
}

.settings-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: var(--transition-fast);
}

.settings-nav-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.settings-nav-btn.active {
  background: var(--bg-card-active);
  color: var(--text-primary);
  font-weight: 600;
}

/* Fluid Full-Width Settings Content Pane */
.settings-content-pane {
  flex: 1;
  overflow-y: auto;
  padding: 2.25rem 3.5rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.settings-header-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.settings-section-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-xs);
}

.settings-section-title {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.settings-section-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.settings-form-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.15rem;
}

.settings-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.settings-input, .settings-select, .settings-textarea {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition-fast);
}

.settings-input:focus, .settings-select:focus, .settings-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(24, 24, 27, 0.08);
}

/* Feed Management List */
.settings-feed-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-light);
  gap: 1rem;
}

.settings-feed-item:last-child {
  border-bottom: none;
}

/* Prompt Template Card */
.prompt-template-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
  background: var(--bg-card);
  margin-bottom: 0.75rem;
  transition: var(--transition-fast);
}

.prompt-template-card:hover {
  border-color: var(--border-strong);
}

/* Stats Metric Grid */
.stats-grid-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stats-metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow-xs);
}

.stats-metric-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

.stats-metric-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Mobile adaptation for settings */
@media (max-width: 768px) {
  .settings-container {
    flex-direction: column;
    padding-bottom: var(--bottom-nav-height);
  }
  .settings-sidebar {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.5rem;
  }
  .settings-nav-btn {
    white-space: nowrap;
    width: auto;
  }
  .settings-content-pane {
    padding: 1.25rem 1rem;
  }
}