/* =============================================================================
   TENSOR Med — Legacy shared.css
   =============================================================================
   Retained for pages still using pre-Phase-5 class names. Typography and
   palette are rebound here to the Phase 5 tokens (IBM Plex Sans, #1e4d8b
   brand, white surface) so legacy pages visually match new ones.
   New pages should link tokens.css + components.css and stop depending on
   this file.
   ============================================================================= */

:root {
  /* Legacy aliases retained for pages that still reference them, now
     re-bound to Phase 5 values so the visual system stays consistent. */
  --ink: #0a0f1a;
  --ink-hover: #1e4d8b;
  --ink-secondary: #475569;
  --ink-muted: #64748b;
  --surface: #ffffff;
  --surface-raised: #ffffff;
  --surface-sunken: #f8fafc;
  --border: #e5e7eb;
  --border-strong: #cbd5e1;
  --accent-teal: #1e4d8b;
  --accent-teal-light: #e8eef7;
  --accent-amber: #d97706;
  --accent-amber-light: #fffbeb;
  --accent-red: #991b1b;
  --accent-red-light: #fef2f2;
  --accent-blue: #1e4d8b;
  --accent-blue-light: #e8eef7;
  --accent-green: #166534;
  --accent-green-light: #ecfdf5;
  --fresh: #166534;
  --aging: #d97706;
  --stale: #991b1b;
  --unknown: #64748b;
  --font-display: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body:    'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --radius: 4px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(10, 15, 26, 0.06);
  --shadow-md: 0 4px 12px rgba(10, 15, 26, 0.08);
  --shadow-lg: 0 8px 24px rgba(10, 15, 26, 0.10);
}

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

body {
  font-family: var(--font-body);
  background: var(--surface);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ── Navigation Bar ── */
/* Matches TENSOR Debate Room: OCR-B, 1.5rem logo, 0.70rem tabs */
.nav-bar {
  background: #fff;
  padding: 0 4rem;
  display: flex;
  align-items: center;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-family: var(--font-display);
  color: var(--ink);
  font-size: 1.50rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0;
}

.nav-brand-box {
  background: var(--ink);
  color: #fff;
  padding: 2px 8px 3px;
  margin-left: 6px;
  font-size: 1.50rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  gap: 0.3rem;
  list-style: none;
  margin-left: auto;
  margin-right: 1rem;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.70rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.5rem 1.2rem;
  border: none;
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.nav-links a:hover { color: var(--ink); }
.nav-links a.active { background: var(--ink); color: #fff; }

.nav-spacer { flex: 1; }

.nav-user {
  color: var(--ink-muted);
  font-size: 0.65rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* ── Page Shell ── */
.page-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 32px 64px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-title {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink);
}

.page-subtitle {
  font-size: 13px;
  color: var(--ink-muted);
  margin-top: 2px;
}

/* ── Cards ── */
.card {
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.card-header {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* ── Tables ── */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-align: left;
  padding: 10px 12px;
  border-bottom: 2px solid var(--border-strong);
  font-weight: normal;
}

.data-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

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

.data-table tr:hover td { background: var(--surface-sunken); }

.data-table a { color: var(--ink); text-decoration: none; font-weight: 500; }
.data-table a:hover { color: var(--accent-teal); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface-raised);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}

.btn:hover { background: var(--surface-sunken); border-color: var(--ink-muted); }

.btn-primary {
  background: var(--accent-teal);
  color: #fff;
  border-color: var(--accent-teal);
}
.btn-primary:hover { background: #0a5f62; }

.btn-sm { padding: 5px 10px; font-size: 12px; }

/* ── Badges ── */
.badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 3px;
  line-height: 1.4;
}

.badge-inactive { background: var(--accent-green-light); color: var(--accent-green); }
.badge-low { background: var(--accent-blue-light); color: var(--accent-blue); }
.badge-high { background: var(--accent-amber-light); color: var(--accent-amber); }
.badge-very-high { background: var(--accent-red-light); color: var(--accent-red); }
.badge-active { background: var(--accent-teal-light); color: var(--accent-teal); }
.badge-stopped { background: var(--surface-sunken); color: var(--ink-muted); }

/* ── Tabs ── */
.tab-bar {
  display: flex;
  gap: 2px;
  border-bottom: 2px solid var(--border);
  margin-bottom: 20px;
}

.tab-btn {
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink-muted);
  background: none;
  border: none;
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
}

.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--accent-teal); border-bottom-color: var(--accent-teal); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Forms ── */
.form-group { margin-bottom: 14px; }

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-secondary);
  margin-bottom: 4px;
}

.form-input {
  width: 100%;
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-raised);
  color: var(--ink);
  transition: border-color 0.15s;
}

.form-input:focus { outline: none; border-color: var(--accent-teal); box-shadow: 0 0 0 3px var(--accent-teal-light); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 12px 20px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s;
  z-index: 1000;
}

.toast.show { opacity: 1; transform: translateY(0); }
.toast-error { background: var(--accent-red); }
.toast-success { background: var(--accent-green); }

/* ── Search ── */
.search-box {
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 10px 14px 10px 36px;
  font-family: var(--font-body);
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-raised);
  color: var(--ink);
}

.search-box input:focus { outline: none; border-color: var(--accent-teal); }

.search-box::before {
  content: '\u2315';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-muted);
  font-size: 16px;
}

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--ink-muted);
}

.empty-state-icon {
  font-size: 36px;
  margin-bottom: 12px;
  opacity: 0.4;
}

.empty-state-text {
  font-size: 14px;
  margin-bottom: 16px;
}

/* ── Loading ──
   Legacy .loading-spinner uses the TENSOR ring motif so every pre-Phase-7
   call site (report generation status bar, paper viewer, corpus loader,
   demo inject button) gets the brand spinner without needing markup changes. */
.loading-spinner,
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 0;
  vertical-align: middle;
  background-image: image-set(
    url("ring.png") 1x,
    url("ring@3x.png") 3x
  );
  background-image: -webkit-image-set(
    url("ring.png") 1x,
    url("ring@3x.png") 3x
  );
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  animation: spin 1.2s linear infinite;
}

/* When a spinner sits on a dark/brand-coloured background (e.g. the
   primary Inject button), drop the interior tint and swap the ring
   ink to white via CSS filter so the mark remains legible. */
.button.demo-inject-btn .loading-spinner,
.button.demo-inject-btn .spinner,
.demo-inject-btn .loading-spinner,
.demo-inject-btn .spinner,
[data-variant="primary"] .loading-spinner,
[data-variant="primary"] .spinner {
  background-image: image-set(
    url("ring-outline.png") 1x,
    url("ring-outline@3x.png") 3x
  );
  background-image: -webkit-image-set(
    url("ring-outline.png") 1x,
    url("ring-outline@3x.png") 3x
  );
  filter: brightness(0) invert(1);
}

@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .loading-spinner, .spinner { animation: none; opacity: 0.6; }
}

/* ── Stagger animation ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.stagger { animation: fadeUp 0.35s ease-out both; }
.stagger:nth-child(1) { animation-delay: 0.03s; }
.stagger:nth-child(2) { animation-delay: 0.06s; }
.stagger:nth-child(3) { animation-delay: 0.09s; }
.stagger:nth-child(4) { animation-delay: 0.12s; }
.stagger:nth-child(5) { animation-delay: 0.15s; }
.stagger:nth-child(6) { animation-delay: 0.18s; }
.stagger:nth-child(7) { animation-delay: 0.21s; }
.stagger:nth-child(8) { animation-delay: 0.24s; }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,26,46,0.4);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--surface-raised);
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 90%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.25s ease-out;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ── Sign Out link in nav ── */
.nav-logout {
  font-family: var(--font-display);
  font-size: 0.60rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-decoration: none;
  cursor: pointer;
  padding: 0.4rem 0.8rem;
  transition: color 0.2s;
}
.nav-logout:hover { color: var(--accent-red); }

/* ── Practice name badge in nav ── */
.nav-practice {
  font-family: var(--font-display);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-right: 8px;
}

/* ── Stat Grid ── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

/* ── Table scroll wrapper ── */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* =============================================================================
   RESPONSIVE — Tablet landscape
   ============================================================================= */
@media (max-width: 1024px) {
  .page-shell { padding: 20px 2rem 48px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

/* =============================================================================
   RESPONSIVE — Tablet portrait / large phone
   ============================================================================= */
@media (max-width: 768px) {
  .nav-bar {
    padding: 0 1rem;
    height: 52px;
  }
  .nav-brand { font-size: 1.2rem; }
  .nav-brand-box { font-size: 1.2rem; }
  .nav-links {
    gap: 0.15rem;
    margin-right: 0.5rem;
  }
  .nav-links a {
    font-size: 0.60rem;
    padding: 0.4rem 0.8rem;
  }
  .nav-user { font-size: 0.55rem; }
  .nav-logout { font-size: 0.55rem; padding: 0.3rem 0.5rem; }
  .nav-practice { display: none; }

  .page-shell { padding: 16px 1rem 48px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }

  .tab-bar { flex-wrap: wrap; gap: 0; }
  .tab-btn { padding: 8px 12px; font-size: 10px; }

  .toast {
    bottom: 12px;
    right: 12px;
    left: 12px;
    max-width: none;
  }

  .modal { width: 95%; padding: 20px; }
}

/* =============================================================================
   RESPONSIVE — Small phone
   ============================================================================= */
@media (max-width: 480px) {
  .nav-bar { padding: 0 0.75rem; height: 48px; }
  .nav-brand { font-size: 1.0rem; }
  .nav-brand-box { font-size: 1.0rem; padding: 1px 6px 2px; margin-left: 4px; }
  .nav-links a {
    padding: 0.4rem 0.6rem;
    font-size: 0.55rem;
    letter-spacing: 0.05em;
  }
  .nav-user { display: none; }

  .page-shell { padding: 12px 0.75rem 40px; }
  body { font-size: 13px; }

  .stat-grid { grid-template-columns: 1fr; }
  .card { padding: 14px; }
  .card-header { font-size: 10px; margin-bottom: 8px; }

  .page-title { font-size: 16px; letter-spacing: 1px; }

  .btn { width: 100%; justify-content: center; }
  .btn-sm { width: auto; }

  .data-table th { font-size: 9px; padding: 8px; }
  .data-table td { padding: 10px 8px; font-size: 12px; }

  .search-box input { font-size: 12px; }

  .modal { width: 100%; border-radius: 0; max-height: 100vh; }
}