/* ==========================================================================
   Calculadora de nota media de expediente universitario ECTS - Fijate Tools
   Estilo Canónico Responsivo, Temas Oscuro/Claro y Vista Documental A4
   ========================================================================== */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #151c2c;
  --bg-card-hover: #1c2538;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.25);

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-purple: #8b5cf6;
  --color-info: #06b6d4;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
}

[data-theme="light"],
body.light-theme {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-focus: #2563eb;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --accent-primary: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-glow: rgba(37, 99, 235, 0.15);

  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.06);
}

/* Layout y Contenedor Principal */
body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  box-sizing: border-box;
  flex: 1 0 auto;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  max-width: 100%;
}

/* Tarjeta Principal */
.card-main {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 1.5rem;
  box-sizing: border-box;
  margin-bottom: 2rem;
}

/* Barra de Presets */
.presets-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.presets-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.presets-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.preset-chip {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 34px;
}

.preset-chip:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.preset-chip.active {
  background: var(--accent-primary);
  color: #ffffff;
  border-color: var(--accent-primary);
}

.preset-chip.chip-clear {
  color: var(--color-danger);
  border-color: rgba(239, 68, 68, 0.3);
}

.preset-chip.chip-clear:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--color-danger);
}

/* Cuadrícula de 2 columnas blindada */
.workspace-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 960px) {
  .workspace-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.workspace-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-sizing: border-box;
  min-width: 0;
}

.card-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.card-title-sub {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.card-desc-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0.25rem 0 1rem 0;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-success);
  background: rgba(16, 185, 129, 0.12);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.live-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-success);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-success);
  animation: live-pulse 2s infinite ease-in-out;
}

@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
}

/* Formularios y Controles */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.label-with-hint {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.35rem;
}

.label-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  min-height: 42px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.select-custom {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  background-color: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
}

.select-custom option {
  background-color: var(--bg-card);
  color: var(--text-primary);
  padding: 0.5rem;
}

.credits-input-row,
.grade-input-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.input-numeric-field {
  width: 90px !important;
  font-family: var(--font-mono);
  font-weight: 700;
  text-align: center;
  flex: 0 0 90px;
}

.chips-credits,
.chips-grades {
  display: flex;
  gap: 0.35rem;
  flex: 1 1 0%;
  flex-wrap: wrap;
}

.chip-credit,
.chip-grade {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: 38px;
  flex: 1 1 0%;
  min-width: 44px;
  text-align: center;
  transition: all 0.15s ease;
}

.chip-credit:hover,
.chip-grade:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
}

.chip-credit.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
}

.badge-grade-preview {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
}

.form-row-dual {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

@media (max-width: 600px) {
  .form-row-dual {
    grid-template-columns: minmax(0, 1fr);
  }
}

.custom-checkbox-container {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  gap: 0.6rem;
  min-height: 42px;
}

.custom-checkbox-container input {
  display: none;
}

.checkbox-checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  background: var(--bg-card);
  border-radius: 4px;
  display: inline-block;
  position: relative;
  transition: all 0.2s;
  flex-shrink: 0;
}

.custom-checkbox-container input:checked ~ .checkbox-checkmark {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.custom-checkbox-container input:checked ~ .checkbox-checkmark::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.btn-primary-action {
  width: 100%;
  min-height: 44px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-hover));
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--accent-glow);
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn-primary-action:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--accent-glow);
}

.btn-primary-action:active {
  transform: translateY(1px);
}

/* Configuración Global e Importación */
.global-config-box {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.config-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.85rem 0;
  color: var(--text-primary);
}

.config-fields-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.import-details {
  margin-top: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
}

.import-summary {
  padding: 0.65rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.import-summary:hover {
  color: var(--text-primary);
}

.import-body {
  padding: 0.85rem;
  border-top: 1px solid var(--border-color);
}

.import-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 0.5rem 0;
}

.textarea-import {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  min-height: 80px;
  resize: vertical;
}

.btn-secondary-action {
  width: 100%;
  min-height: 38px;
  margin-top: 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary-action:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
}

/* Columna Derecha: Tarjetas Métricas */
.scores-hero-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 480px) {
  .scores-hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.score-hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.score-hero-card.primary-score {
  border-color: rgba(59, 130, 246, 0.4);
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.08) 0%, var(--bg-card) 100%);
}

.score-caption {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.score-number-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
}

.score-number {
  font-family: var(--font-mono);
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.score-max {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
}

.score-qualitative-box {
  margin: 0.5rem 0;
}

.score-qualitative-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.score-points-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  background: rgba(139, 92, 246, 0.15);
  color: var(--color-purple);
}

.score-subtext {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Barra de progreso de titulación */
.progress-degree-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-bottom: 1.25rem;
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.progress-label-value {
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.progress-bar-track {
  width: 100%;
  height: 8px;
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--color-info));
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

/* Desglose de calificaciones */
.distribution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 600px) {
  .distribution-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.dist-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.65rem;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.dist-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.dist-val {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  margin: 0.2rem 0;
  color: var(--text-primary);
}

.dist-pct {
  font-size: 0.72rem;
  font-weight: 600;
}

.dist-ap .dist-pct { color: var(--color-info); }
.dist-nt .dist-pct { color: var(--accent-primary); }
.dist-sb .dist-pct { color: var(--color-purple); }
.dist-mh .dist-pct { color: var(--color-success); }

/* Simulador de Nota Objetivo */
.target-sim-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-bottom: 1.25rem;
}

.target-sim-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-primary);
  margin-bottom: 0.35rem;
}

.target-sim-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.target-sim-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 0.85rem 0;
}

.target-input-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.target-input-row .form-control {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  text-align: center;
}

.target-suffix {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.target-sim-result {
  margin-top: 0.75rem;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

.target-status-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.35rem;
}

.badge-achievable { background: rgba(16, 185, 129, 0.15); color: var(--color-success); }
.badge-demanding { background: rgba(245, 158, 11, 0.15); color: var(--color-warning); }
.badge-extreme { background: rgba(239, 68, 68, 0.15); color: var(--color-danger); }
.badge-neutral { background: rgba(148, 163, 184, 0.15); color: var(--text-secondary); }

.target-result-text {
  font-size: 0.85rem;
  margin: 0;
  color: var(--text-secondary);
}

.actions-hero-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

@media (max-width: 480px) {
  .actions-hero-row {
    grid-template-columns: minmax(0, 1fr);
  }
}

.btn-action-outline {
  min-height: 42px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-action-outline:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* Sección de la Tabla */
.subjects-table-section {
  margin-top: 1rem;
}

.section-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0;
  display: inline-block;
  margin-right: 0.75rem;
}

.section-badge-counter {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.12);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.table-actions-right {
  display: flex;
  gap: 0.5rem;
}

.btn-table-action {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: 34px;
}

.btn-table-action:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
}

.subjects-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.subjects-table th {
  background: var(--bg-card);
  padding: 0.75rem 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.82rem;
  white-space: nowrap;
}

.subjects-table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

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

.subjects-table tr:hover td {
  background: var(--bg-card-hover);
}

.cell-subject-name {
  font-weight: 600;
}

.cell-mono {
  font-family: var(--font-mono);
  font-weight: 700;
}

.badge-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
}

.tag-ss { background: rgba(239, 68, 68, 0.15); color: var(--color-danger); }
.tag-ap { background: rgba(6, 182, 212, 0.15); color: var(--color-info); }
.tag-nt { background: rgba(59, 130, 246, 0.15); color: var(--accent-primary); }
.tag-sb { background: rgba(139, 92, 246, 0.15); color: var(--color-purple); }
.tag-mh { background: rgba(16, 185, 129, 0.2); color: var(--color-success); border: 1px solid rgba(16, 185, 129, 0.4); }

.btn-delete-row {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  min-width: 32px;
}

.btn-delete-row:hover {
  color: var(--color-danger);
  background: rgba(239, 68, 68, 0.12);
}

/* Modal de Confirmación */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1rem;
  box-sizing: border-box;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 440px;
  width: 100%;
  padding: 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  animation: modal-pop 0.2s ease-out;
}

@keyframes modal-pop {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.modal-icon-alert {
  color: var(--color-warning);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin: 0;
  color: var(--text-primary);
}

.modal-body p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0 0 1.25rem 0;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.btn-modal-secondary {
  min-height: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 0 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-modal-danger {
  min-height: 40px;
  background: var(--color-danger);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0 1.2rem;
  font-weight: 700;
  cursor: pointer;
}

/* Guía SEO y Documentación en 2 Columnas */
.seo-guide-section {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  margin-top: 2rem;
}

.seo-guide-container {
  max-width: 100%;
}

.seo-guide-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.15);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.seo-guide-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 0.5rem 0;
}

.seo-guide-lead {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0 0 1.75rem 0;
  max-width: 900px;
}

.seo-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 800px) {
  .seo-guide-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.seo-guide-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.seo-card-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 0.75rem 0;
}

.seo-guide-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0 0 0.85rem 0;
}

.formula-box {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin: 0.85rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
}

.seo-list-checked {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
}

.seo-table-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 2rem;
}

.seo-table-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
}

.seo-guide-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.seo-guide-table th {
  background: var(--bg-card);
  padding: 0.75rem 0.85rem;
  color: var(--text-secondary);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.82rem;
}

.seo-guide-table td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.seo-faq-block {
  margin-top: 1.5rem;
}

.seo-faq-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 1rem 0;
  color: var(--text-primary);
}

.faq-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.faq-question {
  padding: 0.85rem 1rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--text-primary);
}

.faq-answer {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.faq-answer p {
  margin: 0;
}

/* ==========================================================================
   Vista Documental A4 Oficial para Impresión (.print-sheet)
   ========================================================================== */
@media print {
  body * {
    visibility: hidden !important;
  }

  .print-sheet,
  .print-sheet * {
    visibility: visible !important;
  }

  .print-sheet {
    display: block !important;
    position: absolute !important;
    left: 0 !important;
    top: 0 !important;
    width: 100% !important;
    max-width: 210mm !important;
    margin: 0 auto !important;
    padding: 15mm !important;
    background: #ffffff !important;
    color: #000000 !important;
    font-family: Arial, Helvetica, sans-serif !important;
    box-sizing: border-box !important;
  }

  .print-header {
    border-bottom: 2px solid #000000;
    padding-bottom: 10px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
  }

  .print-brand h2 {
    font-size: 16pt;
    margin: 0;
    text-transform: uppercase;
  }

  .print-sub {
    font-size: 9pt;
    color: #444;
  }

  .print-meta {
    text-align: right;
    font-size: 9pt;
  }

  .print-summary-grid {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
  }

  .print-summary-box {
    flex: 1;
    border: 1px solid #ccc;
    padding: 10px;
    text-align: center;
  }

  .print-box-title {
    font-size: 9pt;
    display: block;
    margin-bottom: 4px;
    font-weight: bold;
  }

  .print-box-val {
    font-size: 22pt;
    font-weight: bold;
    display: block;
    font-family: monospace;
  }

  .print-box-badge, .print-box-sub {
    font-size: 9pt;
    display: block;
    margin-top: 4px;
  }

  .print-table {
    width: 100% !important;
    border-collapse: collapse !important;
    margin-bottom: 20px !important;
    font-size: 9pt !important;
  }

  .print-table th,
  .print-table td {
    border: 1px solid #000000 !important;
    padding: 6px 8px !important;
    color: #000000 !important;
  }

  .print-table th {
    background-color: #f0f0f0 !important;
    font-weight: bold !important;
  }

  .print-footer {
    font-size: 8pt;
    color: #666;
    border-top: 1px solid #ccc;
    padding-top: 8px;
    margin-top: 30px;
  }
}