/* ============================================================
   MOST-App - Hoja de estilos
   ============================================================ */

:root {
  --primary: #1e40af;
  --primary-light: #3b82f6;
  --primary-dark: #1e3a8a;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --success: #16a34a;
  --danger: #dc2626;
  --warning: #ca8a04;
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --bg-soft: #f1f5f9;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-soft: #475569;
  --text-mute: #94a3b8;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --radius: 8px;
  --radius-sm: 6px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Layout principal ---------- */
.app {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 24px 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar .brand {
  padding: 0 24px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  margin-bottom: 16px;
}
.sidebar .brand h1 {
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.5px;
}
.sidebar .brand .sub {
  font-size: 12px;
  opacity: 0.75;
  margin-top: 4px;
}

.nav {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-size: 14.5px;
  transition: background 0.15s, color 0.15s;
  border-left: 3px solid transparent;
}
.nav li a:hover {
  background: rgba(255,255,255,0.06);
  color: #fff;
}
.nav li a.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-left-color: var(--accent);
  font-weight: 600;
}
.nav .icon {
  width: 18px;
  display: inline-block;
  text-align: center;
}

.sidebar .footer {
  padding: 20px 24px 0;
  font-size: 11px;
  opacity: 0.6;
  border-top: 1px solid rgba(255,255,255,0.15);
  margin-top: 30px;
}

/* ---------- Main ---------- */
.main {
  padding: 32px 40px 80px;
  max-width: 1200px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.page-header h2 {
  margin: 0 0 4px;
  font-size: 26px;
  color: var(--text);
}
.page-header p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}
.card h3 {
  margin: 0 0 12px;
  font-size: 16px;
  color: var(--text);
}
.card p { margin: 0 0 10px; color: var(--text-soft); }
.card .meta {
  font-size: 12px;
  color: var(--text-mute);
}

.grid {
  display: grid;
  gap: 16px;
}
.grid.cols-2 { grid-template-columns: 1fr 1fr; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) {
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
  .app { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .main { padding: 20px; }
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
}
.btn:hover { background: var(--bg-soft); border-color: #cbd5e1; }
.btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn.primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn.accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn.accent:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn.danger {
  background: var(--bg-card);
  color: var(--danger);
  border-color: #fecaca;
}
.btn.danger:hover { background: #fef2f2; }
.btn.sm { padding: 5px 10px; font-size: 12.5px; }
.btn.ghost { border: none; background: transparent; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Formularios ---------- */
label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-soft);
  margin-bottom: 6px;
}
input[type="text"], input[type="number"], input[type="date"], textarea, select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  background: var(--bg-card);
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
textarea { resize: vertical; min-height: 60px; font-family: "SF Mono", "Consolas", monospace; }

.form-row {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 14px;
}
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 700px) { .form-row, .form-row.cols-3 { grid-template-columns: 1fr; } }

/* ---------- Badges / Chips ---------- */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 12px;
  font-size: 11.5px;
  font-weight: 600;
  background: var(--bg-soft);
  color: var(--text-soft);
}
.badge.blue   { background: #dbeafe; color: #1e40af; }
.badge.green  { background: #dcfce7; color: #166534; }
.badge.amber  { background: #fef3c7; color: #92400e; }
.badge.red    { background: #fee2e2; color: #991b1b; }
.badge.purple { background: #ede9fe; color: #5b21b6; }

/* ---------- Tablas ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
th {
  background: var(--bg-soft);
  font-weight: 600;
  color: var(--text-soft);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
tbody tr:hover { background: #fafbfc; }

.mono { font-family: "SF Mono", "Consolas", "Courier New", monospace; font-size: 13.5px; }

/* ---------- Toast / Notificaciones ---------- */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--text);
  color: #fff;
  padding: 12px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 9999;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
  max-width: 400px;
}
.toast.success { background: var(--success); }
.toast.error   { background: var(--danger); }
.toast.warn    { background: var(--warning); }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 20px;
}
.modal {
  background: var(--bg-card);
  border-radius: var(--radius);
  max-width: 720px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { margin: 0; font-size: 18px; }
.modal-body { padding: 22px; }
.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: var(--bg-soft);
  border-radius: 0 0 var(--radius) var(--radius);
}

/* ---------- Vista del Manual ---------- */
.manual-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
}
@media (max-width: 900px) { .manual-layout { grid-template-columns: 1fr; } }

.toc {
  position: sticky;
  top: 20px;
  align-self: start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}
.toc h4 {
  margin: 0 0 10px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-mute);
}
.toc ul { list-style: none; padding: 0; margin: 0; }
.toc li a {
  display: block;
  padding: 7px 10px;
  color: var(--text-soft);
  text-decoration: none;
  font-size: 13.5px;
  border-radius: 5px;
  margin-bottom: 2px;
}
.toc li a:hover, .toc li a.active {
  background: var(--bg-soft);
  color: var(--primary);
  font-weight: 500;
}
.toc li.level-3 a { padding-left: 24px; font-size: 13px; }

.manual-content section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  scroll-margin-top: 20px;
}
.manual-content h2 {
  font-size: 22px;
  margin: 0 0 16px;
  color: var(--primary-dark);
  border-bottom: 2px solid var(--border);
  padding-bottom: 10px;
}
.manual-content h3 {
  font-size: 17px;
  margin: 24px 0 10px;
  color: var(--text);
}
.manual-content h4 {
  font-size: 15px;
  margin: 18px 0 8px;
  color: var(--text-soft);
}
.manual-content p, .manual-content li { color: #334155; }
.manual-content ul, .manual-content ol { padding-left: 22px; }
.manual-content li { margin-bottom: 4px; }

.callout {
  background: #eff6ff;
  border-left: 4px solid var(--primary-light);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin: 14px 0;
  font-size: 14px;
}
.callout.warn { background: #fffbeb; border-color: var(--accent); }
.callout.success { background: #f0fdf4; border-color: var(--success); }
.callout strong { color: var(--primary-dark); }

.table-card {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 13.5px;
  background: #fafbfc;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.table-card th, .table-card td {
  padding: 8px 10px;
  border: 1px solid var(--border);
}
.table-card th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

/* ---------- Activity / Steps Builder ---------- */
.builder-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
}
@media (max-width: 1000px) { .builder-grid { grid-template-columns: 1fr; } }

.steps-list {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 12px;
  min-height: 200px;
  max-height: 400px;
  overflow-y: auto;
}
.step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  border: 1px solid var(--border);
}
.step-item .num {
  width: 24px;
  height: 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}
.step-item .code { font-family: "SF Mono", monospace; font-weight: 600; color: var(--primary-dark); }
.step-item .desc { font-size: 12.5px; color: var(--text-soft); flex: 1; }
.step-item .tmu  { font-weight: 600; color: var(--accent-dark); }

.param-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 5px 10px;
  font-size: 13px;
  cursor: pointer;
  font-family: "SF Mono", monospace;
  transition: all 0.15s;
}
.pill:hover { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }
.pill.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Index dropdown */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 6px;
  margin-top: 10px;
}
.value-grid .vopt {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  cursor: pointer;
  text-align: center;
  font-size: 13px;
  font-family: "SF Mono", monospace;
}
.value-grid .vopt:hover { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }
.value-grid .vopt.selected { background: var(--primary); color: #fff; border-color: var(--primary); }

.suggest {
  font-size: 12.5px;
  color: var(--text-soft);
  margin-top: 6px;
  background: #fff;
  padding: 8px 10px;
  border-radius: 5px;
  border-left: 3px solid var(--accent);
}

/* Calculadora */
.calc-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin-top: 12px;
}
.calc-summary .stat {
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  text-align: center;
}
.calc-summary .stat .v {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-dark);
}
.calc-summary .stat .l {
  font-size: 11.5px;
  text-transform: uppercase;
  color: var(--text-mute);
  letter-spacing: 0.4px;
}

.timeline {
  margin-top: 14px;
  border-left: 3px solid var(--primary);
  padding-left: 16px;
}
.timeline .tl-item {
  margin-bottom: 8px;
  font-size: 14px;
}
.timeline .tl-item .code {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: monospace;
  font-weight: 600;
  margin-right: 8px;
  font-size: 13px;
}
.timeline .tl-item .tmu {
  color: var(--accent-dark);
  font-weight: 600;
  margin-left: 8px;
}

/* Tarjetas de datos / Reference */
.ref-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 16px;
}
.ref-card h3 {
  margin: 0 0 4px;
  color: var(--primary-dark);
  font-size: 17px;
}
.ref-card .ref-desc { font-size: 13.5px; color: var(--text-soft); margin-bottom: 12px; }

/* Empty state */
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-mute);
}
.empty .em-icon { font-size: 48px; opacity: 0.4; }
.empty h3 { margin: 12px 0 6px; color: var(--text-soft); }
.empty p { font-size: 14px; }

/* Print */
@media print {
  .sidebar, .no-print, .page-header .actions, .btn { display: none !important; }
  .app { display: block; }
  .main { max-width: 100%; padding: 20px; }
  .card, .ref-card { box-shadow: none; border: 1px solid #ccc; page-break-inside: avoid; }
  body { background: #fff; }
  .timeline { page-break-inside: avoid; }
}

/* Wizard / ayuda */
.wizard-tip {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-bottom: 12px;
}
.wizard-tip strong { color: #0369a1; }

.kbd {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  padding: 1px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 12.5px;
  color: var(--text);
}

/* Buscador del manual */
.search-box {
  position: relative;
  margin-bottom: 16px;
}
.search-box input { padding-left: 36px; }
.search-box::before {
  content: "🔎";
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 15px;
  opacity: 0.6;
}
.search-results {
  position: absolute;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-height: 300px;
  overflow-y: auto;
  z-index: 50;
  box-shadow: var(--shadow-lg);
  display: none;
}
.search-results.show { display: block; }
.search-results a {
  display: block;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  font-size: 13.5px;
}
.search-results a:hover { background: var(--bg-soft); }
.search-results a .hit { color: var(--primary); font-weight: 600; }

/* Switch de tema */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 50;
}