/* =============================================================================
   common.css — Channel Engagement Dashboard
   Color scheme matches section4 dashboard exactly.
   ============================================================================= */

/* ---------------------------------------------------------------------------
   CSS Custom Properties
   --------------------------------------------------------------------------- */
:root {
  --bg:      #0f172a;
  --card:    #1e293b;
  --border:  #334155;
  --text:    #e2e8f0;
  --muted:   #94a3b8;
  --blue:    #3b82f6;
  --green:   #10b981;
  --red:     #ef4444;
  --orange:  #f59e0b;
  --yellow:  #eab308;
}

/* ---------------------------------------------------------------------------
   Reset
   --------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ---------------------------------------------------------------------------
   Base
   --------------------------------------------------------------------------- */
body {
  background-color: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ---------------------------------------------------------------------------
   App Header
   --------------------------------------------------------------------------- */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  height: 56px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  padding: 4px 8px;
  border-radius: 4px;
  text-decoration: none;
  transition: color 0.15s;
}

.back-button:hover {
  color: var(--text);
  text-decoration: none;
}

.app-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.header-subtitle {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---------------------------------------------------------------------------
   Main Container
   --------------------------------------------------------------------------- */
.main-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

/* ---------------------------------------------------------------------------
   Buttons
   --------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255,255,255,0.05);
}

.btn-danger {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

.btn-danger:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-success {
  background: var(--green);
  color: #fff;
  border-color: var(--green);
}

.btn-success:hover:not(:disabled) {
  opacity: 0.9;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

/* ---------------------------------------------------------------------------
   Stats Grid
   --------------------------------------------------------------------------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.stat-label {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 4px;
  line-height: 1.1;
}

.stat-sub {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 4px;
}

.stat-value.green  { color: var(--green);  }
.stat-value.red    { color: var(--red);    }
.stat-value.orange { color: var(--orange); }
.stat-value.blue   { color: var(--blue);   }

/* ---------------------------------------------------------------------------
   Table Container
   --------------------------------------------------------------------------- */
.table-container {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 24px;
}

.table-container table {
  width: 100%;
  border-collapse: collapse;
}

.table-container thead {
  background: #0f172a;
  border-bottom: 2px solid var(--border);
}

.table-container th {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.table-container td {
  padding: 12px 16px;
  color: var(--text);
  border-bottom: 1px solid rgba(51,65,85,0.5);
  vertical-align: middle;
}

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

.table-container tbody tr:hover {
  background: rgba(59,130,246,0.05);
  cursor: pointer;
}

.table-container tbody tr.no-hover:hover {
  background: transparent;
  cursor: default;
}

/* ---------------------------------------------------------------------------
   Result Box
   --------------------------------------------------------------------------- */
.result-box {
  display: none;
  padding: 12px 16px;
  border-radius: 6px;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  margin-top: 12px;
  white-space: pre-wrap;
  word-break: break-word;
}

.result-box.success {
  display: block;
  background: rgba(16,185,129,0.1);
  border: 1px solid #10b981;
  color: #10b981;
}

.result-box.error {
  display: block;
  background: rgba(239,68,68,0.1);
  border: 1px solid #ef4444;
  color: #ef4444;
}

.result-box.info {
  display: block;
  background: rgba(59,130,246,0.1);
  border: 1px solid #3b82f6;
  color: #93c5fd;
}

/* ---------------------------------------------------------------------------
   State indicators
   --------------------------------------------------------------------------- */
.loading-state,
.error-state,
.empty-state {
  display: none;
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
}

.loading-state.visible,
.error-state.visible,
.empty-state.visible {
  display: block;
}

.loading-state::before {
  content: '';
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-right: 8px;
  vertical-align: middle;
}

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

/* ---------------------------------------------------------------------------
   Badges
   --------------------------------------------------------------------------- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.6;
  white-space: nowrap;
}

.badge-respond   { background: rgba(16,185,129,0.15); color: #10b981; border: 1px solid rgba(16,185,129,0.3); }
.badge-bypass    { background: rgba(59,130,246,0.15);  color: #3b82f6; border: 1px solid rgba(59,130,246,0.3); }
.badge-silent    { background: rgba(148,163,184,0.15); color: var(--muted); border: 1px solid rgba(148,163,184,0.3); }
.badge-gated     { background: rgba(239,68,68,0.15);   color: var(--red);   border: 1px solid rgba(239,68,68,0.3); }
.badge-cancel    { background: rgba(245,158,11,0.15);  color: var(--orange); border: 1px solid rgba(245,158,11,0.3); }
.badge-conditional { background: rgba(234,179,8,0.15); color: var(--yellow); border: 1px solid rgba(234,179,8,0.3); }
.badge-error     { background: rgba(239,68,68,0.15);   color: var(--red);   border: 1px solid rgba(239,68,68,0.3); }

/* ---------------------------------------------------------------------------
   Admin row
   --------------------------------------------------------------------------- */
.admin-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.admin-input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 14px;
  min-width: 160px;
}

.admin-input:focus {
  outline: none;
  border-color: var(--blue);
}

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

select.admin-input option {
  background: var(--card);
}

/* ---------------------------------------------------------------------------
   Panel
   --------------------------------------------------------------------------- */
.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.panel-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

/* ---------------------------------------------------------------------------
   SSE output
   --------------------------------------------------------------------------- */
.sse-output {
  background: #060f1e;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 0.85rem;
  min-height: 200px;
  max-height: 500px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.6;
}

.sse-line-pass   { color: #10b981; }
.sse-line-fail   { color: #ef4444; }
.sse-line-warn   { color: #f59e0b; }
.sse-line-info   { color: #94a3b8; }
.sse-line-result { color: #e2e8f0; font-weight: 600; }
.sse-line-done   { color: #3b82f6; font-weight: 600; }
.sse-line-error  { color: #ef4444; font-weight: 600; }

/* ---------------------------------------------------------------------------
   Status dot
   --------------------------------------------------------------------------- */
.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.green  { background: #10b981; }
.status-dot.red    { background: #ef4444; }
.status-dot.yellow { background: #f59e0b; }
.status-dot.gray   { background: #475569; }

/* ---------------------------------------------------------------------------
   Nav tabs
   --------------------------------------------------------------------------- */
.nav-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.nav-tab {
  padding: 8px 16px;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s, border-color 0.15s;
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  text-decoration: none;
  display: inline-block;
}

.nav-tab:hover {
  color: var(--text);
  text-decoration: none;
}

.nav-tab.active {
  color: var(--text);
  border-bottom-color: var(--blue);
}

/* ---------------------------------------------------------------------------
   Filter bar
   --------------------------------------------------------------------------- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
}

.filter-label {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

/* ---------------------------------------------------------------------------
   Pagination
   --------------------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
  border-top: 1px solid var(--border);
}

.pagination-info {
  font-size: 13px;
  color: var(--muted);
}

/* ---------------------------------------------------------------------------
   Accordion / Details
   --------------------------------------------------------------------------- */
.accordion-section {
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 12px;
  overflow: hidden;
}

.accordion-header {
  background: rgba(51,65,85,0.3);
  padding: 12px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 500;
  font-size: 0.9rem;
}

.accordion-header:hover {
  background: rgba(51,65,85,0.5);
}

.accordion-body {
  padding: 16px;
  background: var(--card);
}

/* ---------------------------------------------------------------------------
   Slider (calibration)
   --------------------------------------------------------------------------- */
.slider-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

.slider-label {
  width: 120px;
  font-size: 13px;
  color: var(--muted);
  flex-shrink: 0;
}

input[type="range"] {
  flex: 1;
  accent-color: var(--blue);
}

.slider-value {
  width: 50px;
  text-align: right;
  font-family: monospace;
  font-size: 13px;
  color: var(--text);
}

.sum-indicator {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
}

.sum-indicator.ok  { background: rgba(16,185,129,0.15); color: var(--green); }
.sum-indicator.bad { background: rgba(239,68,68,0.15);  color: var(--red);   }

/* ---------------------------------------------------------------------------
   Code / JSON
   --------------------------------------------------------------------------- */
pre.json-view {
  background: #060f1e;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 16px;
  font-family: monospace;
  font-size: 0.8rem;
  overflow-x: auto;
  white-space: pre;
  color: var(--text);
}

/* ---------------------------------------------------------------------------
   Two-column diagnostics layout
   --------------------------------------------------------------------------- */
.diag-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  align-items: start;
}

.diag-sidebar {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.diag-sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.diag-test-item {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(51,65,85,0.3);
  cursor: pointer;
  transition: background 0.1s;
}

.diag-test-item:last-child {
  border-bottom: none;
}

.diag-test-item:hover {
  background: rgba(59,130,246,0.05);
}

.diag-test-item.active {
  background: rgba(59,130,246,0.1);
  border-left: 3px solid var(--blue);
}

.diag-test-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
}

.diag-test-desc {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
}

.diag-test-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
}

.diag-main {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

/* ---------------------------------------------------------------------------
   Health cards grid
   --------------------------------------------------------------------------- */
.health-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.health-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.health-card-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.health-card-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
}

.health-card-detail {
  font-size: 11px;
  color: var(--muted);
}

/* ---------------------------------------------------------------------------
   Verdict banner (record.html)
   --------------------------------------------------------------------------- */
.verdict-banner {
  padding: 20px 24px;
  border-radius: 8px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.verdict-banner.respond     { background: rgba(16,185,129,0.1);  border: 1px solid rgba(16,185,129,0.4); }
.verdict-banner.silent      { background: rgba(148,163,184,0.1); border: 1px solid rgba(148,163,184,0.4); }
.verdict-banner.gated       { background: rgba(239,68,68,0.1);   border: 1px solid rgba(239,68,68,0.4); }
.verdict-banner.cancel      { background: rgba(245,158,11,0.1);  border: 1px solid rgba(245,158,11,0.4); }
.verdict-banner.bypass      { background: rgba(59,130,246,0.1);  border: 1px solid rgba(59,130,246,0.4); }
.verdict-banner.conditional { background: rgba(234,179,8,0.1);   border: 1px solid rgba(234,179,8,0.4); }
.verdict-banner.error       { background: rgba(239,68,68,0.1);   border: 1px solid rgba(239,68,68,0.4); }

.verdict-text {
  font-size: 1.4rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.verdict-score {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--muted);
}

.verdict-band {
  font-size: 0.9rem;
  color: var(--muted);
  background: rgba(255,255,255,0.05);
  padding: 4px 10px;
  border-radius: 4px;
}

/* ---------------------------------------------------------------------------
   Key-value table
   --------------------------------------------------------------------------- */
.kv-table {
  width: 100%;
  border-collapse: collapse;
}

.kv-table tr {
  border-bottom: 1px solid rgba(51,65,85,0.3);
}

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

.kv-table td:first-child {
  width: 40%;
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  padding: 8px 4px;
  vertical-align: top;
}

.kv-table td:last-child {
  font-family: monospace;
  font-size: 13px;
  color: var(--text);
  padding: 8px 4px;
}

/* ---------------------------------------------------------------------------
   Match indicator
   --------------------------------------------------------------------------- */
.match-yes { color: var(--green); font-weight: 700; }
.match-no  { color: var(--red);   font-weight: 700; }
.match-pending { color: var(--muted); }

/* ---------------------------------------------------------------------------
   Toggle checkbox row
   --------------------------------------------------------------------------- */
.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  user-select: none;
}

.toggle-row input[type="checkbox"] {
  accent-color: var(--blue);
  width: 16px;
  height: 16px;
}

/* ---------------------------------------------------------------------------
   Responsive
   --------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .table-container {
    overflow-x: auto;
  }

  .diag-layout {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-row {
    flex-direction: column;
    align-items: stretch;
  }

  .main-container {
    padding: 16px;
  }

  .app-header {
    padding: 12px 16px;
  }
}