/**
 * VirtuBox File Transfer Service - Component Styles
 */

/* ==========================================================================
   Header & Brand Navigation
   ========================================================================== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  padding: 4px;
}

.brand-logo-img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
}

.brand-titles {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-wordmark {
  display: inline-flex;
  align-items: baseline;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.brand-wordmark .virtu {
  color: var(--brand-virtu, var(--vb-blue));
}

.brand-wordmark .box {
  color: var(--brand-box, var(--vb-orange));
}

.brand-badge {
  font-size: 0.7rem;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  padding: 2px 7px;
  border-radius: var(--radius-full);
  color: var(--vb-green);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.brand-tagline {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-icon-secondary {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-icon-secondary:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.user-profile-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 4px 12px 4px 6px;
  border-radius: var(--radius-full);
}

.user-avatar-badge {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--vb-blue), var(--vb-green));
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.user-meta .user-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

.user-meta .user-role {
  font-size: 0.7rem;
  color: var(--vb-green);
  font-weight: 500;
}

.btn-logout {
  background: transparent;
  color: var(--text-muted);
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  margin-left: 4px;
}

.btn-logout:hover {
  color: var(--vb-orange);
}

/* ==========================================================================
   Login Screen
   ========================================================================== */
.login-container {
  min-height: calc(80vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 0;
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--vb-blue), var(--vb-green), var(--vb-yellow), var(--vb-orange));
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-header .logo-badge-lg {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px auto;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  padding: 6px;
}

.login-logo-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  display: block;
}

.login-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.login-header p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon-prefix {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
}

.input-control {
  width: 100%;
  padding: 11px 12px 11px 40px;
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.input-control:focus {
  border-color: var(--vb-green);
  background: var(--bg-surface-elevated);
  box-shadow: 0 0 0 3px rgba(0, 157, 176, 0.15);
}

.password-toggle-btn {
  position: absolute;
  right: 12px;
  color: var(--text-muted);
  padding: 4px;
  display: flex;
  align-items: center;
}

.password-toggle-btn:hover {
  color: var(--text-primary);
}

.login-error-banner {
  background: rgba(235, 96, 67, 0.12);
  border: 1px solid rgba(235, 96, 67, 0.3);
  color: #ff7d66;
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 0.82rem;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-primary-block {
  width: 100%;
  padding: 12px 20px;
  background: linear-gradient(135deg, var(--vb-blue), var(--vb-green));
  color: #ffffff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.92rem;
  box-shadow: 0 4px 14px rgba(0, 157, 176, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.btn-primary-block:hover {
  filter: brightness(1.08);
  box-shadow: 0 6px 20px rgba(0, 157, 176, 0.45);
  transform: translateY(-1px);
}

.btn-primary-block:active {
  transform: translateY(0);
}

/* ==========================================================================
   Dashboard Layout & Metrics Overview
   ========================================================================== */
#dashboard-view {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
  width: 100%;
}

@media (max-width: 1080px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.metric-card:hover {
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.metric-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
}

.metric-card.color-blue::before { background: var(--vb-blue); }
.metric-card.color-green::before { background: var(--vb-green); }
.metric-card.color-orange::before { background: var(--vb-orange); }
.metric-card.color-yellow::before { background: var(--vb-yellow); }

.metric-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.color-blue .metric-icon-box { background: rgba(43, 116, 151, 0.15); color: var(--vb-blue); }
.color-green .metric-icon-box { background: rgba(0, 157, 176, 0.15); color: var(--vb-green); }
.color-orange .metric-icon-box { background: rgba(235, 96, 67, 0.15); color: var(--vb-orange); }
.color-yellow .metric-icon-box { background: rgba(244, 188, 31, 0.15); color: var(--vb-yellow); }

.metric-info {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.metric-value {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.metric-sub {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Toolbar: Search, Filters, Sort, View Controls
   ========================================================================== */
.toolbar-container {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.toolbar-primary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 260px;
  max-width: 500px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
}

.search-input {
  width: 100%;
  padding: 10px 36px 10px 42px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.88rem;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.search-input:focus {
  border-color: var(--vb-blue);
  background: var(--bg-surface-elevated);
  box-shadow: 0 0 0 3px rgba(43, 116, 151, 0.15);
}

.search-clear-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  display: flex;
  padding: 2px;
}

.search-clear-btn:hover {
  color: var(--text-primary);
}

.toolbar-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sort-select {
  padding: 9px 32px 9px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
}

.sort-select:focus {
  border-color: var(--vb-blue);
}

.view-mode-toggle {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 3px;
}

.view-btn {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
}

.view-btn.active {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

/* Category Filter Tabs */
.category-pills {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.category-pill {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.category-pill:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.category-pill.active {
  background: linear-gradient(135deg, var(--vb-blue), var(--vb-green));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(0, 157, 176, 0.25);
}

.category-pill .pill-count {
  background: rgba(255, 255, 255, 0.18);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
}

.category-pill:not(.active) .pill-count {
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
}

/* ==========================================================================
   File Explorer: Grid View
   ========================================================================== */
.files-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 20px;
}

.file-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.file-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.file-card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 12px;
}

.file-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.file-card:hover .file-icon-box {
  transform: scale(1.05);
}

/* File type icon badge colors */
.icon-pdf { background: rgba(235, 96, 67, 0.15); color: var(--vb-orange); }
.icon-zip { background: rgba(244, 188, 31, 0.15); color: var(--vb-yellow); }
.icon-json { background: rgba(0, 157, 176, 0.15); color: var(--vb-green); }
.icon-sql { background: rgba(43, 116, 151, 0.15); color: var(--vb-blue); }
.icon-sh { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.icon-log { background: rgba(168, 85, 247, 0.15); color: #c084fc; }
.icon-md { background: rgba(20, 184, 166, 0.15); color: #2dd4bf; }
.icon-docker { background: rgba(13, 183, 237, 0.15); color: #0288b8; }
[data-theme="dark"] .icon-docker { background: rgba(13, 183, 237, 0.22); color: #38c8f8; }
.icon-generic { background: rgba(148, 163, 184, 0.15); color: var(--text-secondary); }

.file-header-meta {
  flex: 1;
  min-width: 0;
}

.file-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.file-meta-badges {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.file-path-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-input);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.file-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  color: var(--text-muted);
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  margin-bottom: 14px;
}

.file-meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.file-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-download-primary {
  flex: 1;
  padding: 8px 14px;
  background: linear-gradient(135deg, var(--vb-blue), var(--vb-green));
  color: #ffffff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.82rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow: 0 2px 8px rgba(0, 157, 176, 0.25);
  transition: all var(--transition-fast);
}

.btn-download-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 4px 12px rgba(0, 157, 176, 0.35);
}

.btn-download-primary.btn-download-disabled,
.btn-download-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  background: var(--bg-input);
  color: var(--text-muted);
  box-shadow: none;
  border: 1px solid var(--border-medium);
  filter: none !important;
  transform: none !important;
}

.btn-action-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-action-icon:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.btn-action-icon.btn-action-disabled,
.btn-action-icon:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  color: var(--text-muted) !important;
  background: var(--bg-input);
  border-color: var(--border-subtle);
  transform: none !important;
}

.btn-action-icon.btn-action-disabled:hover,
.btn-action-icon:disabled:hover {
  background: var(--bg-input);
  color: var(--text-muted) !important;
  border-color: var(--border-subtle);
}

/* ==========================================================================
   File Explorer: List / Table View
   ========================================================================== */
.table-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

.files-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.86rem;
}

.files-table th {
  padding: 12px 18px;
  background: var(--bg-input);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border-subtle);
}

.files-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  vertical-align: middle;
}

.files-table tbody tr:hover {
  background: var(--bg-surface-hover);
}

.table-file-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}

.table-file-cell .file-icon-box {
  width: 36px;
  height: 36px;
}

.table-file-info {
  display: flex;
  flex-direction: column;
}

.table-file-name {
  font-weight: 600;
  color: var(--text-primary);
}

.table-file-path {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.category-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 500;
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.category-distributions {
  background: rgba(13, 183, 237, 0.12);
  color: #0288b8;
  border-color: rgba(13, 183, 237, 0.3);
}

[data-theme="dark"] .category-distributions {
  background: rgba(13, 183, 237, 0.2);
  color: #38c8f8;
  border-color: rgba(13, 183, 237, 0.4);
}

.category-reports {
  background: rgba(235, 96, 67, 0.12);
  color: #c9442a;
  border-color: rgba(235, 96, 67, 0.3);
}
[data-theme="dark"] .category-reports {
  background: rgba(235, 96, 67, 0.2);
  color: #f87171;
  border-color: rgba(235, 96, 67, 0.4);
}

.category-deliverables {
  background: rgba(244, 188, 31, 0.12);
  color: #b58500;
  border-color: rgba(244, 188, 31, 0.3);
}
[data-theme="dark"] .category-deliverables {
  background: rgba(244, 188, 31, 0.2);
  color: #facc15;
  border-color: rgba(244, 188, 31, 0.4);
}

.category-configs {
  background: rgba(0, 157, 176, 0.12);
  color: #008191;
  border-color: rgba(0, 157, 176, 0.3);
}
[data-theme="dark"] .category-configs {
  background: rgba(0, 157, 176, 0.2);
  color: #2dd4bf;
  border-color: rgba(0, 157, 176, 0.4);
}

.category-database {
  background: rgba(43, 116, 151, 0.12);
  color: #2b7497;
  border-color: rgba(43, 116, 151, 0.3);
}
[data-theme="dark"] .category-database {
  background: rgba(43, 116, 151, 0.2);
  color: #60a5fa;
  border-color: rgba(43, 116, 151, 0.4);
}

.category-scripts {
  background: rgba(99, 102, 241, 0.12);
  color: #6366f1;
  border-color: rgba(99, 102, 241, 0.3);
}
[data-theme="dark"] .category-scripts {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  border-color: rgba(99, 102, 241, 0.4);
}

.category-logs {
  background: rgba(168, 85, 247, 0.12);
  color: #9333ea;
  border-color: rgba(168, 85, 247, 0.3);
}
[data-theme="dark"] .category-logs {
  background: rgba(168, 85, 247, 0.2);
  color: #c084fc;
  border-color: rgba(168, 85, 247, 0.4);
}

.category-docs {
  background: rgba(20, 184, 166, 0.12);
  color: #0f766e;
  border-color: rgba(20, 184, 166, 0.3);
}
[data-theme="dark"] .category-docs {
  background: rgba(20, 184, 166, 0.2);
  color: #34d399;
  border-color: rgba(20, 184, 166, 0.4);
}

.table-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: flex-end;
}

/* ==========================================================================
   Modals & Dialogs
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
  animation: modalFadeIn 200ms ease;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 800px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalSlideUp 200ms ease;
}

.modal-dialog-wide {
  max-width: 960px;
}

@keyframes modalSlideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.modal-close-btn {
  color: var(--text-muted);
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
}

.modal-close-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  background: var(--bg-surface-elevated);
}

/* Preview Code Viewer */
.code-preview-viewer {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  color: #e2e8f0;
  overflow: auto;
  max-height: 480px;
  white-space: pre-wrap;
  word-break: break-all;
}

.guide-step {
  margin-bottom: 20px;
}

.guide-step h4 {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.guide-step p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.guide-code-box {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #a5f3fc;
  overflow-x: auto;
  margin-bottom: 8px;
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 2000;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg);
  min-width: 280px;
  max-width: 420px;
  animation: toastSlideIn 250ms cubic-bezier(0.16, 1, 0.3, 1);
  color: var(--text-primary);
}

@keyframes toastSlideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.toast.toast-success { border-left: 4px solid var(--vb-green); }
.toast.toast-error { border-left: 4px solid var(--vb-orange); }
.toast.toast-info { border-left: 4px solid var(--vb-blue); }

.toast-icon {
  display: flex;
  flex-shrink: 0;
}

.toast-success .toast-icon { color: var(--vb-green); }
.toast-error .toast-icon { color: var(--vb-orange); }
.toast-info .toast-icon { color: var(--vb-blue); }

/* ==========================================================================
   Empty State & Spinner
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 64px 20px;
  background: var(--bg-surface);
  border: 1px dashed var(--border-medium);
  border-radius: var(--radius-lg);
  margin: 20px 0;
}

.empty-icon-box {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px auto;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.empty-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.empty-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  max-width: 400px;
  margin: 0 auto;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
  .toolbar-primary {
    flex-direction: column;
    align-items: stretch;
  }
  .search-box {
    max-width: 100%;
  }
}