/* ═══════════════════════════════════════════════════════════════
   系统设置页面样式 - 紧凑布局版
   高空间利用率设计
═══════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────────────────────────
   页面容器与头部
───────────────────────────────────────────────────────────────── */
.settings-page {
  padding: 1.5rem;
  max-width: 1400px;
}

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

.settings-header .page-title {
  margin: 0;
  font-size: 1.4rem;
}

.settings-header .page-actions {
  display: flex;
  gap: 0.5rem;
}

/* ─────────────────────────────────────────────────────────────────
   状态概览栏
───────────────────────────────────────────────────────────────── */
.settings-current-status {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.875rem 1.25rem;
  margin-bottom: 1.25rem;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-label {
  font-size: 0.78rem;
  color: var(--muted);
}

.status-value {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
}

/* ─────────────────────────────────────────────────────────────────
   设置内容区域
───────────────────────────────────────────────────────────────── */
.settings-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.settings-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.settings-card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.875rem 1.25rem;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
}

.settings-card-icon {
  font-size: 1.1rem;
}

.settings-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.settings-card-body {
  padding: 1rem 1.25rem;
}

/* ─────────────────────────────────────────────────────────────────
   紧凑主题网格 - 高空间利用率
───────────────────────────────────────────────────────────────── */
.theme-compact-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.625rem;
  margin-bottom: 0.75rem;
}

.theme-card-compact {
  position: relative;
  height: 72px;
  border-radius: 8px;
  padding: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.theme-card-compact:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.theme-card-compact.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}

.theme-card-name {
  font-size: 0.7rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.theme-card-mode {
  font-size: 0.8rem;
  opacity: 0.7;
}

.theme-card-indicator {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  opacity: 0.6;
}

.theme-current-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.theme-current-name {
  color: var(--accent);
  font-weight: 500;
}

/* ─────────────────────────────────────────────────────────────────
   微调设置行 - 水平紧凑布局
───────────────────────────────────────────────────────────────── */
.tweak-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 1rem;
}

.tweak-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tweak-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
}

.tweak-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tweak-slider {
  flex: 1;
  height: 4px;
  accent-color: var(--accent);
}

.tweak-value {
  font-size: 0.75rem;
  font-family: monospace;
  color: var(--text);
  min-width: 32px;
}

.color-picker-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex: 1;
}

.color-swatch {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  border: 1px solid var(--border);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.color-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.tweak-input {
  flex: 1;
  min-width: 0;
  font-family: monospace;
  font-size: 0.78rem;
  padding: 0.35rem 0.5rem;
}

.tweak-toggles {
  display: flex;
  gap: 1.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.toggle-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.toggle-text {
  font-size: 0.82rem;
  color: var(--text);
}

/* ─────────────────────────────────────────────────────────────────
   语言设置
───────────────────────────────────────────────────────────────── */
.lang-buttons {
  display: flex;
  gap: 0.5rem;
}

.lang-btn {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface2);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-btn:hover {
  border-color: var(--accent);
  background: rgba(var(--accent-rgb), 0.1);
}

.lang-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ─────────────────────────────────────────────────────────────────
   配置网格 - 紧凑表单布局
───────────────────────────────────────────────────────────────── */
.config-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.875rem;
}

.config-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.config-item-sm {
  flex: 0 0 auto;
  width: auto;
}

.config-item-full {
  grid-column: 1 / -1;
}

.config-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
}

.config-actions {
  margin-top: 1rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-start;
}

/* ─────────────────────────────────────────────────────────────────
   响应式适配
───────────────────────────────────────────────────────────────── */
@media (max-width: 1200px) {
  .theme-compact-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .tweak-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .config-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .settings-current-status {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .theme-compact-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .tweak-row {
    grid-template-columns: 1fr;
  }

  .config-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .settings-page {
    padding: 1rem;
  }

  .settings-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .theme-compact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .config-grid {
    grid-template-columns: 1fr;
  }

  .tweak-toggles {
    flex-direction: column;
    gap: 0.75rem;
  }
}