/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 5px 12px;
  font-size: var(--font-size-sm);
  font-family: inherit;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover:not(:disabled) { background: var(--color-surface-hover); border-color: #c9cdd4; }

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) { background: var(--color-surface-hover); color: var(--color-text); }

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}
.btn-danger:hover:not(:disabled) { opacity: 0.9; }

.btn-sm { padding: 3px 8px; font-size: var(--font-size-xs); }
.btn-icon { padding: 4px; width: 28px; height: 28px; }

/* Inputs */
.input, .select, .textarea {
  padding: 5px 10px;
  font-size: var(--font-size-sm);
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition);
  outline: none;
  line-height: 1.4;
}

.input:focus, .select:focus, .textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

.input::placeholder { color: var(--color-text-muted); }
.input-sm { padding: 3px 8px; font-size: var(--font-size-xs); }
.select { cursor: pointer; }
.textarea { resize: vertical; min-height: 60px; }

.form-hint {
  font-size: var(--font-size-xs);
  line-height: 1.4;
}

.field-note {
  margin: 0 0 8px;
  font-size: var(--font-size-xs);
  line-height: 1.5;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--spacing-sm);
}

.form-row-2 { grid-template-columns: 1fr 1fr; }

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
  min-height: 36px;
}

.card-header__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.card-body { padding: var(--spacing-md); }
.card-body--compact { padding: var(--spacing-sm) var(--spacing-md); }

/* Stat cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--spacing-sm);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-card__label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.stat-card__value {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}

.stat-card__sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

/* Table */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.data-table th {
  text-align: left;
  padding: 7px 10px;
  background: #fafbfc;
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: var(--font-size-xs);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  position: sticky;
  top: 0;
}

.data-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text);
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--color-surface-hover); }

.data-table .cell-mono {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: var(--font-size-xs);
}

.data-table .cell-actions {
  display: flex;
  gap: 4px;
  flex-wrap: nowrap;
}

.data-table .empty-row td {
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--spacing-xl);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: 10px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  line-height: 1.6;
}

.badge-success { background: var(--color-success-light); color: var(--color-success); }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger); }
.badge-info { background: var(--color-primary-light); color: var(--color-primary); }
.badge-neutral { background: #f2f3f5; color: var(--color-text-secondary); }

/* Progress bar */
.progress-bar {
  height: 4px;
  background: var(--color-border-light);
  border-radius: 2px;
  overflow: hidden;
  min-width: 60px;
}

.progress-bar__fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s ease;
}

.progress-bar__fill--success { background: var(--color-success); }
.progress-bar__fill--warning { background: var(--color-warning); }
.progress-bar__fill--danger { background: var(--color-danger); }

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.toolbar__spacer { flex: 1; }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.15s ease;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.2s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.modal-header h3 {
  margin: 0;
  font-size: var(--font-size-md);
  font-weight: 600;
}

.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-border-light);
}

/* Toast */
.toast-container {
  position: fixed;
  top: 56px;
  right: 16px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  font-size: var(--font-size-sm);
  animation: slideIn 0.2s ease;
  max-width: 360px;
}

.toast--success { border-left: 3px solid var(--color-success); }
.toast--error { border-left: 3px solid var(--color-danger); }
.toast--info { border-left: 3px solid var(--color-primary); }

/* Loading */
.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  color: var(--color-text-secondary);
  gap: var(--spacing-sm);
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  color: var(--color-text-secondary);
}

.empty-state__icon {
  font-size: 32px;
  margin-bottom: var(--spacing-sm);
  opacity: 0.4;
}

.empty-state__title {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 4px;
}

.empty-state__desc {
  font-size: var(--font-size-sm);
  margin: 0;
}

/* Provider chat (体验 tab) */
.page-viewport-fill .tabs {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.page-viewport-fill .tabs__panels {
  flex: 1;
  min-height: 0;
}

.page-viewport-fill .tabs__panel[data-tab="try"] {
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.provider-chat-tab {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.chat-toolbar { margin-bottom: var(--spacing-sm); }

.chat-panel {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  height: 520px;
  overflow: hidden;
}

.page-viewport-fill .chat-panel {
  flex: 1;
  min-height: 0;
  height: auto;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  background: #fafbfc;
}

.chat-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-text-secondary);
  padding: var(--spacing-xl);
}

.chat-empty__icon { font-size: 36px; opacity: 0.35; margin-bottom: var(--spacing-sm); }
.chat-empty__title { font-size: var(--font-size-md); font-weight: 500; color: var(--color-text); margin: 0 0 4px; }
.chat-empty__desc { font-size: var(--font-size-sm); margin: 0; }

.chat-msg {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.chat-msg--user {
  align-self: flex-end;
  background: var(--color-primary);
  color: #fff;
  border-bottom-right-radius: 2px;
}

.chat-msg--assistant {
  align-self: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-bottom-left-radius: 2px;
}

.chat-msg--error {
  align-self: flex-start;
  background: #fff2f0;
  border: 1px solid #ffccc7;
  color: var(--color-danger);
}

.chat-msg--loading .chat-msg__content { opacity: 0.6; }

.chat-msg__role {
  font-size: var(--font-size-xs);
  font-weight: 500;
  margin-bottom: 2px;
  opacity: 0.75;
}

.chat-msg--user .chat-msg__role { color: rgba(255, 255, 255, 0.85); }

.chat-msg__content {
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-msg__meta {
  margin-top: 4px;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.chat-input-bar {
  display: flex;
  flex-shrink: 0;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  align-items: flex-end;
}

.chat-input {
  flex: 1;
  min-height: 40px;
  max-height: 120px;
  resize: none;
}

/* Test result panel */
.test-result {
  background: #fafbfc;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  font-size: var(--font-size-sm);
}

.test-result__row {
  display: flex;
  justify-content: space-between;
  padding: 3px 0;
}

.test-result__label { color: var(--color-text-secondary); }

/* Token reveal */
.token-reveal {
  background: #1d2129;
  color: #e5e6eb;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: var(--font-size-sm);
  word-break: break-all;
  position: relative;
}

.token-reveal__hint {
  font-size: var(--font-size-xs);
  color: var(--color-warning);
  margin-top: var(--spacing-sm);
}

/* Animations */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* Utility */
.text-secondary { color: var(--color-text-secondary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-mono { font-family: "SF Mono", "Fira Code", monospace; font-size: var(--font-size-xs); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 180px; }
.flex-center { display: flex; align-items: center; gap: var(--spacing-sm); }
.mt-sm { margin-top: var(--spacing-sm); }
.hidden { display: none !important; }

/* Tabs */
.tabs__bar {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-md);
}

.tabs__btn {
  padding: 6px 14px;
  font-size: var(--font-size-sm);
  font-family: inherit;
  border: none;
  background: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition);
}

.tabs__btn:hover { color: var(--color-text); }
.tabs__btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 500; }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  font-size: var(--font-size-sm);
}

.pagination__info { color: var(--color-text-secondary); }
.pagination__controls { display: flex; gap: var(--spacing-sm); }

/* Charts */
.bar-chart { display: flex; flex-direction: column; gap: 6px; }
.bar-chart__row { display: flex; align-items: center; gap: 8px; }
.bar-chart__label { width: 100px; font-size: var(--font-size-xs); color: var(--color-text-secondary); }
.bar-chart__track { flex: 1; height: 6px; background: var(--color-border-light); border-radius: 3px; overflow: hidden; }
.bar-chart__fill { height: 100%; background: var(--color-primary); border-radius: 3px; }
.bar-chart__value { width: 48px; text-align: right; font-size: var(--font-size-xs); color: var(--color-text-secondary); }

.time-chart__bars { display: flex; align-items: flex-end; gap: 3px; height: 100px; padding: 8px 0; overflow-x: auto; }
.time-chart__col { display: flex; flex-direction: column; align-items: center; gap: 4px; min-width: 28px; flex: 1; }
.time-chart__bar { width: 100%; max-width: 20px; background: var(--color-primary); border-radius: 2px 2px 0 0; min-height: 4px; opacity: 0.85; }
.time-chart__tick { font-size: 9px; color: var(--color-text-muted); transform: rotate(-30deg); white-space: nowrap; }

/* Alerts */
.alerts-list { display: flex; flex-direction: column; gap: 6px; }
.alert {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}
.alert--success { background: var(--color-success-light); border-color: #aff0b5; }
.alert--warning { background: var(--color-warning-light); border-color: #ffe4ba; }
.alert--danger { background: var(--color-danger-light); border-color: #fdcdc5; }
.alert__title { font-weight: 600; color: var(--color-text); }
.alert__desc { font-size: var(--font-size-xs); color: var(--color-text-secondary); }

/* Detail panel */
.detail-grid {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 6px 12px;
  font-size: var(--font-size-sm);
}
.detail-grid dt { color: var(--color-text-secondary); }
.detail-grid dd { margin: 0; word-break: break-all; }

.payload-viewer {
  background: #fafbfc;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 10px;
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 11px;
  max-height: 240px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* API endpoints page */
.endpoint-card { margin-bottom: 12px; }
.endpoint-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  flex-wrap: wrap;
}
.endpoint-url {
  display: block;
  padding: 6px 10px;
  background: #fafbfc;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 12px;
  word-break: break-all;
}
.endpoint-field {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 12px;
  align-items: start;
}
.endpoint-field__label { color: var(--color-text-secondary); }
.endpoint-example { margin-top: 10px; }
.endpoint-example__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.endpoint-example__code {
  margin: 0;
  padding: 10px;
  background: #1e1e2e;
  color: #cdd6f4;
  border-radius: var(--radius-md);
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 11px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.endpoint-section-header {
  margin: 20px 0 10px;
}
.endpoint-section-header__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}
.endpoint-section-header__desc {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--color-text-secondary);
}

.endpoint-path-table {
  display: grid;
  gap: 8px;
}
.endpoint-path-table__row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 8px;
  align-items: start;
}
@media (min-width: 900px) {
  .endpoint-path-table__row {
    grid-template-columns: 88px 1fr 1fr;
  }
}
.endpoint-path-table__label {
  font-size: 12px;
  color: var(--color-text-secondary);
  padding-top: 6px;
}

.endpoint-provider-hint { margin-bottom: 12px; }
.endpoint-provider-list {
  display: grid;
  gap: 8px;
}
.endpoint-provider-list__item {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.endpoint-provider-list__item .endpoint-url {
  flex: 1;
  min-width: 200px;
}