/*
  components.css — Reusable UI components
  ────────────────────────────────────────
  Buttons, inputs, badges, cards, tables, modals, toasts.
  Every rule here is component-scoped. No page-layout rules.
*/

/* ════════════════════════════════════════════════
   BUTTONS
   Design rationale: Two primary types — solid (primary action)
   and ghost (secondary). Danger variant for destructive actions.
   No icon-only buttons without aria-labels.
   ════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--border-radius-md);
  border: 1px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  line-height: 1.5;
  height: 30px;
}

.btn:disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Primary */
.btn-primary {
  background: var(--color-gray-900);
  color: var(--color-white);
  border-color: var(--color-gray-900);
}
.btn-primary:hover { background: var(--color-gray-700); border-color: var(--color-gray-700); }

/* Secondary / Ghost */
.btn-ghost {
  background: var(--color-white);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-ghost:hover { background: var(--color-gray-50); border-color: var(--border-color-strong); }

/* Danger */
.btn-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: var(--color-danger-border);
}
.btn-danger:hover { background: #fee2e2; }

/* Blue accent */
.btn-blue {
  background: var(--color-blue-600);
  color: white;
  border-color: var(--color-blue-600);
}
.btn-blue:hover { background: var(--color-blue-700); border-color: var(--color-blue-700); }

/* Icon-only button */
.btn-icon {
  padding: 4px 6px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  width: 28px;
  font-size: 16px;
  line-height: 1;
}
.btn-icon:hover { background: var(--color-gray-100); color: var(--text-primary); }

/* ════════════════════════════════════════════════
   FORM ELEMENTS
   ════════════════════════════════════════════════ */
.input, .select, .textarea {
  display: block;
  width: 100%;
  padding: 6px var(--space-3);
  font-size: var(--text-sm);
  color: var(--text-primary);
  background: var(--color-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  height: 32px;
  line-height: 1.5;
  outline: none;
}

.input:focus, .select:focus, .textarea:focus {
  border-color: var(--color-blue-500);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.15);
}

.input::placeholder { color: var(--text-muted); }

.textarea {
  height: auto;
  resize: vertical;
  min-height: 80px;
  line-height: var(--line-height-base);
}

.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 16px;
  padding-right: 28px;
  cursor: pointer;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

/* ════════════════════════════════════════════════
   BADGES / TAGS
   ════════════════════════════════════════════════ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
  border-radius: 99px;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-gray    { background: var(--color-gray-100); color: var(--color-gray-600); border-color: var(--color-gray-200); }
.badge-blue    { background: var(--color-blue-50);  color: var(--color-blue-700); border-color: var(--color-blue-100); }
.badge-green   { background: var(--color-success-bg); color: var(--color-success); border-color: var(--color-success-border); }
.badge-red     { background: var(--color-danger-bg); color: var(--color-danger); border-color: var(--color-danger-border); }
.badge-yellow  { background: var(--color-warning-bg); color: var(--color-warning); border-color: var(--color-warning-border); }

/* ════════════════════════════════════════════════
   AVATAR
   ════════════════════════════════════════════════ */
.avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-gray-200);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  flex-shrink: 0;
  overflow: hidden;
  user-select: none;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

[data-theme="dark"] .avatar {
  background: rgba(255, 255, 255, 0.1);
}

/* ════════════════════════════════════════════════
   CARD
   ════════════════════════════════════════════════ */
.card {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.card-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.card-body {
  padding: var(--space-5);
}

/* ════════════════════════════════════════════════
   TABLE
   ════════════════════════════════════════════════ */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
}

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

.table th {
  text-align: left;
  padding: var(--space-2) var(--space-4);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.table tr:last-child td { border-bottom: none; }

.table tr:hover td { background: var(--color-gray-50); }

/* ════════════════════════════════════════════════
   MODAL
   ════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--surface-overlay);
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
}

.modal-overlay.hidden { display: none; }

.modal {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow-md);
  z-index: var(--z-modal);
}

.modal-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
}

.modal-body { padding: var(--space-5); }

.modal-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
}

/* ════════════════════════════════════════════════
   TOAST NOTIFICATIONS
   ════════════════════════════════════════════════ */
#toast-container {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  background: var(--color-gray-900);
  color: var(--color-white);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--border-radius-md);
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-md);
  pointer-events: auto;
  animation: toastIn var(--transition-slow) ease;
  max-width: 320px;
}

.toast.toast-success { border-left: 3px solid var(--color-success); }
.toast.toast-error   { border-left: 3px solid var(--color-danger);  }
.toast.toast-info    { border-left: 3px solid var(--color-blue-500);}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0);   }
}

/* ════════════════════════════════════════════════
   TABS
   ════════════════════════════════════════════════ */
.tabs-bar {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  padding: 0 var(--space-5);
  background: var(--surface-card);
  gap: 0;
  flex-shrink: 0;
}

.tab-btn {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--color-gray-900);
}

.tab-panel { display: none; }
.tab-panel.active { display: flex; flex-direction: column; flex: 1; overflow: hidden; }

/* Container that owns one tabs-bar + its corresponding panels.
   Using this wrapper fixes the cross-panel tab-switching bug:
   apiTester.js queries `.tabs-wrap .tab-btn` and scopes all
   operations to `btn.closest('.tabs-wrap')` instead of document. */
.tabs-wrap {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* ════════════════════════════════════════════════
   CODE BLOCK
   ════════════════════════════════════════════════ */
.code-block {
  background: var(--surface-code);
  color: #e2e8f0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  padding: var(--space-4);
  border-radius: var(--border-radius-md);
  overflow: auto;
  line-height: 1.6;
  white-space: pre;
}

/* ════════════════════════════════════════════════
   EMPTY STATE
   ════════════════════════════════════════════════ */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-16);
  text-align: center;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 32px;
  color: var(--color-gray-300);
}

.empty-state-title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
}

.empty-state-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  max-width: 320px;
}

/* ════════════════════════════════════════════════
   DIVIDER
   ════════════════════════════════════════════════ */
.divider {
  height: 1px;
  background: var(--border-color);
  flex-shrink: 0;
}

/* ════════════════════════════════════════════════
   INLINE FEEDBACK / STATUS DOT
   ════════════════════════════════════════════════ */
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.status-dot.pass    { background: var(--color-success); }
.status-dot.fail    { background: var(--color-danger); }
.status-dot.pending { background: var(--color-warning); }
.status-dot.idle    { background: var(--color-gray-300); }

/* ════════════════════════════════════════════════
   INLINE VALIDATION STATES (Phase 1: Micro-features)
   WHY: Gives users immediate feedback on input correctness
   without waiting for form submission. Reduces frustration.
   ════════════════════════════════════════════════ */
.input-error {
  border-color: var(--color-danger) !important;
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.12) !important;
}

.input-valid {
  border-color: var(--color-success) !important;
  box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.10) !important;
}

.field-error {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
  animation: fieldErrorIn 200ms ease;
}

@keyframes fieldErrorIn {
  from { opacity: 0; transform: translateY(-2px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ════════════════════════════════════════════════
   SAVE INDICATOR (Phase 1: Auto-save feedback)
   WHY: Shows users their work is being saved automatically.
   Reduces anxiety about data loss.
   ════════════════════════════════════════════════ */
.save-indicator {
  font-size: var(--text-xs);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: opacity 200ms ease, color 200ms ease;
}

.save-indicator .spin {
  animation: indicatorSpin 800ms linear infinite;
}

@keyframes indicatorSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ════════════════════════════════════════════════
   TOOLTIPS (Phase 1: Guidance layer)
   WHY: Provides contextual help without cluttering the UI.
   Tooltips appear on hover/focus for interactive elements.
   ════════════════════════════════════════════════ */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) scale(0.96);
  background: var(--color-gray-900);
  color: var(--color-white);
  font-size: 11px;
  font-weight: var(--font-weight-medium);
  padding: 4px 8px;
  border-radius: var(--border-radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 150ms ease, transform 150ms ease;
  z-index: var(--z-dropdown);
  max-width: 220px;
  text-align: center;
  line-height: 1.4;
}

[data-tooltip]:hover::after,
[data-tooltip]:focus::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

/* Bottom variant */
[data-tooltip-pos="bottom"]::after {
  bottom: auto;
  top: calc(100% + 6px);
}

/* ════════════════════════════════════════════════
   LOADING STATES (Phase 1: Visual feedback)
   WHY: Tells users "something is happening" to prevent
   rage-clicking and reduce perceived wait time.
   ════════════════════════════════════════════════ */
.loading-skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-100) 25%,
    var(--color-gray-150) 50%,
    var(--color-gray-100) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease infinite;
  border-radius: var(--border-radius-sm);
  height: 16px;
}

@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.loading-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--color-blue-600);
  border-radius: 50%;
  animation: indicatorSpin 600ms linear infinite;
  display: inline-block;
}

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-raised);
  border-radius: inherit;
}

/* ════════════════════════════════════════════════
   CONFIRM DIALOG ANIMATIONS
   ════════════════════════════════════════════════ */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

/* ════════════════════════════════════════════════
   WARNING BUTTON VARIANT
   ════════════════════════════════════════════════ */
.btn-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: var(--color-warning-border);
}
.btn-warning:hover { background: #fef08a; }

/* ════════════════════════════════════════════════
   KEYBOARD SHORTCUT BADGE
   ════════════════════════════════════════════════ */
kbd {
  background: var(--color-gray-100);
  border: 1px solid var(--border-color);
  border-bottom-width: 2px;
  padding: 1px 6px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-primary);
  white-space: nowrap;
  line-height: 1.6;
}

/* ════════════════════════════════════════════════
   PROGRESS BAR (test runner progress)
   ════════════════════════════════════════════════ */
.progress-bar {
  width: 100%;
  height: 4px;
  background: var(--color-gray-100);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--color-blue-600);
  border-radius: 2px;
  transition: width 300ms ease;
}

.progress-bar-fill.pass { background: var(--color-success); }
.progress-bar-fill.fail { background: var(--color-danger); }

/* ════════════════════════════════════════════════
   SEARCH HIGHLIGHT
   ════════════════════════════════════════════════ */
mark, .search-highlight {
  background: #fef08a;
  color: inherit;
  padding: 0 2px;
  border-radius: 2px;
}

/* ════════════════════════════════════════════════
   COMMAND SURFACE (Cmd+K / Ctrl+K)
   ════════════════════════════════════════════════ */

/* Overlay backdrop */
.cmd-surface-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 9998;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: min(20vh, 160px);
  opacity: 0;
  transition: opacity 150ms ease;
}

.cmd-surface-overlay.active {
  opacity: 1;
}

.cmd-surface-overlay.closing {
  opacity: 0;
}

/* Modal container */
.cmd-surface-modal {
  width: 100%;
  max-width: 560px;
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow:
    0 20px 60px -15px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  animation: cmdScaleIn 150ms ease;
}

@keyframes cmdScaleIn {
  from { opacity: 0; transform: scale(0.97) translateY(-8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* Input area */
.cmd-surface-input-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-color);
}

.cmd-surface-search-icon {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  flex-shrink: 0;
}

.cmd-surface-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 15px;
  color: var(--text-primary);
  outline: none;
  font-family: var(--font-sans);
  font-weight: var(--font-weight-regular);
}

.cmd-surface-input::placeholder {
  color: var(--text-muted);
}

.cmd-surface-kbd {
  flex-shrink: 0;
  font-size: 10px;
  padding: 2px 6px;
  background: var(--color-gray-100);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Results area */
.cmd-surface-results {
  max-height: 340px;
  overflow-y: auto;
  padding: var(--space-2) 0;
}

.cmd-surface-results::-webkit-scrollbar {
  width: 4px;
}

.cmd-surface-results::-webkit-scrollbar-track {
  background: transparent;
}

.cmd-surface-results::-webkit-scrollbar-thumb {
  background: var(--color-gray-200);
  border-radius: 4px;
}

/* Category header */
.cmd-surface-category {
  font-size: 11px;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  padding: var(--space-2) var(--space-4);
  margin-top: var(--space-1);
}

/* Individual command item */
.cmd-surface-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 8px var(--space-4);
  cursor: pointer;
  transition: background 80ms ease;
  margin: 0 var(--space-2);
  border-radius: var(--border-radius-md);
}

.cmd-surface-item:hover,
.cmd-surface-item.active {
  background: var(--color-gray-50);
}

.cmd-surface-item.active {
  background: var(--color-blue-50);
}

.cmd-surface-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--border-radius-md);
  background: var(--color-gray-100);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.cmd-surface-item.active .cmd-surface-item-icon {
  background: var(--color-blue-100);
  color: var(--color-blue-700);
}

.cmd-surface-item-label {
  font-size: var(--text-sm);
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

/* Highlight match in search */
.cmd-highlight {
  background: rgba(250, 204, 21, 0.35);
  color: inherit;
  padding: 0 1px;
  border-radius: 2px;
}

/* Empty state */
.cmd-surface-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-8) var(--space-4);
  color: var(--text-muted);
  font-size: var(--text-sm);
}

.cmd-surface-empty-icon {
  color: var(--color-gray-300);
}

/* ── DISCOVERABILITY HINT ─────────────────────── */
.cmd-surface-hint {
  position: fixed;
  top: 12px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--color-gray-900);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  border-radius: 100px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  z-index: 9997;
  animation: hintSlideIn 400ms ease;
  transition: opacity 400ms ease, transform 400ms ease;
}

.cmd-surface-hint.fading {
  opacity: 0;
  transform: translateY(-8px);
}

@keyframes hintSlideIn {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── TRIGGER BUTTON (sidebar) ─────────────────── */
.cmd-surface-trigger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.cmd-surface-trigger-btn:hover {
  background: var(--color-gray-100);
  color: var(--text-primary);
  border-color: var(--border-color-strong);
}

/* ═══ DARK MODE OVERRIDES ═══ */
[data-theme="dark"] .cmd-surface-overlay {
  background: rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] .cmd-surface-modal {
  box-shadow:
    0 20px 60px -15px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .cmd-surface-item:hover,
[data-theme="dark"] .cmd-surface-item.active {
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .cmd-surface-item.active {
  background: rgba(59, 130, 246, 0.15);
}

[data-theme="dark"] .cmd-surface-item-icon {
  background: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .cmd-surface-item.active .cmd-surface-item-icon {
  background: rgba(59, 130, 246, 0.2);
  color: var(--color-blue-400);
}

[data-theme="dark"] .cmd-surface-hint {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
}

[data-theme="dark"] .cmd-highlight {
  background: rgba(250, 204, 21, 0.2);
}

/* ════════════════════════════════════════════════
   GLASS CAPSULE NAVIGATION (HOVER EXPAND)
   ════════════════════════════════════════════════
   Pill-shaped glassmorphic navigation bar positioned in the
   top header center. Icons-only by default, expand on hover
   to show icon + label. Active item always shows label.
*/
.capsule-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  background: rgba(243, 244, 246, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  flex-shrink: 1;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.capsule-nav::-webkit-scrollbar {
  display: none;
}

.capsule-nav-item {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 6px 8px;
  border-radius: 999px;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  white-space: nowrap;
  cursor: pointer;
  transition: all 180ms cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  border: none;
  background: transparent;
  line-height: 1.4;
  overflow: hidden;
}

/* Label hidden by default */
.capsule-nav-label {
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-width 200ms cubic-bezier(0.4, 0, 0.2, 1),
              opacity 150ms ease,
              margin-left 200ms ease;
  margin-left: 0;
}

/* On hover: show label */
.capsule-nav-item:hover .capsule-nav-label {
  max-width: 120px;
  opacity: 1;
  margin-left: 5px;
}

.capsule-nav-item:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.04);
  padding: 6px 12px;
}

/* Active: always show label */
.capsule-nav-item.active .capsule-nav-label {
  max-width: 120px;
  opacity: 1;
  margin-left: 5px;
}

.capsule-nav-item.active {
  background: var(--surface-card);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  padding: 6px 12px;
}

.capsule-nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.capsule-nav-icon svg {
  width: 14px;
  height: 14px;
}

/* Dark mode capsule */
[data-theme="dark"] .capsule-nav {
  background: rgba(30, 30, 30, 0.7);
  border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .capsule-nav-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .capsule-nav-item.active {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ════════════════════════════════════════════════
   API LAB — POSTMAN-INSPIRED 3-PANEL LAYOUT
   ════════════════════════════════════════════════
   Left: Collections tree
   Center: Request builder (URL bar + tabbed config)
   Right/Bottom: Response viewer
*/

/* Full workspace container */
.api-workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Collections panel (left sidebar) */
.api-collections-panel {
  width: 220px;
  min-width: 180px;
  border-right: 1px solid var(--border-color);
  background: var(--surface-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.api-collections-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-3);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.api-collections-title {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.api-collections-tree {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2);
}

.api-collections-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-8) var(--space-3);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--text-xs);
}

.api-collections-hint {
  font-size: 10px;
  color: var(--text-muted);
  opacity: 0.7;
}

/* Collection folder */
.api-collection-folder {
  margin-bottom: var(--space-1);
}

.api-collection-folder-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px var(--space-2);
  border-radius: var(--border-radius-sm);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  transition: background 80ms ease;
}

.api-collection-folder-header:hover {
  background: var(--color-gray-100);
}

.api-collection-chevron {
  width: 12px;
  height: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform 120ms ease;
  flex-shrink: 0;
}

.api-collection-folder.collapsed .api-collection-chevron {
  transform: rotate(-90deg);
}

.api-collection-folder.collapsed .api-collection-items {
  display: none;
}

.api-collection-items {
  padding-left: var(--space-4);
}

.api-collection-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 3px var(--space-2);
  border-radius: var(--border-radius-sm);
  font-size: var(--text-xs);
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
  transition: background 80ms ease;
  margin-bottom: 1px;
}

.api-collection-item:hover {
  background: var(--color-gray-50);
  color: var(--text-primary);
}

.api-collection-item.active {
  background: var(--color-blue-50);
  color: var(--color-blue-700);
}

[data-theme="dark"] .api-collection-item.active {
  background: rgba(59, 130, 246, 0.12);
  color: var(--color-blue-500);
}

.api-collection-method {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: var(--font-weight-semibold);
  min-width: 30px;
  text-align: center;
  flex-shrink: 0;
}

.api-collection-method.get    { color: #16a34a; }
.api-collection-method.post   { color: #ca8a04; }
.api-collection-method.put    { color: #2563eb; }
.api-collection-method.patch  { color: #7c3aed; }
.api-collection-method.delete { color: #dc2626; }

.api-collection-url {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-mono);
}

/* Main area (center + right) */
.api-main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* Split area for request + response */
.api-split-area {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Capsule nav mobile responsive */
@media (max-width: 768px) {
  .capsule-nav {
    max-width: 200px;
  }

  .capsule-nav-item {
    padding: 4px 6px;
    font-size: var(--text-xs);
  }

  /* Always show labels on mobile (no hover) */
  .capsule-nav-label {
    max-width: 80px;
    opacity: 1;
    margin-left: 4px;
  }

  .capsule-nav-icon {
    display: none;
  }

  .workspace-context {
    display: none !important;
  }

  .header-divider {
    display: none;
  }

  /* API Lab mobile: stack collections above main */
  .api-workspace {
    flex-direction: column;
  }

  .api-collections-panel {
    width: 100% !important;
    min-width: 0 !important;
    max-height: 180px;
    border-right: none !important;
    border-bottom: 1px solid var(--border-color);
  }

  .api-split-area {
    flex-direction: column;
  }
}