/* ============================================================
   Glyphic Design System — Convertidor PDF
   Identidad: Azul Documento (#2563EB)
   Versión: 1.0 — Julio 2026
   Basado en: reglas_ui.md (EXP v3.0), adaptado para Convertidor PDF
   ============================================================ */

/* --- Design Tokens --- */
:root {
  /* Brand Accent — Azul Documento */
  --brand-accent:       #2563EB;
  --brand-accent-700:   #1D4ED8;
  --brand-accent-soft:  rgba(37, 99, 235, 0.12);
  --brand-accent-text:  #FFFFFF;

  /* Surfaces — Mandato Light-First */
  --brand-bg:           #F8FAFC;
  --brand-surface:      #FFFFFF;
  --brand-border:       #E2E8F0;
  --brand-row-hover:    #F1F5F9;

  /* Navegación — Deep Executive Navy */
  --brand-nav:          #0A1629;

  /* Texto */
  --brand-text-primary:   #0F172A;
  --brand-text-secondary: #475569;

  /* Estados Semánticos */
  --semantic-error:    #DC2626;
  --semantic-warning:  #D97706;
  --semantic-info:     #0284C7;
  --semantic-success:  #16A34A;

  /* Overrides Bootstrap 5.3 */
  --bs-primary:          #2563EB;
  --bs-primary-rgb:      37, 99, 235;
  --bs-body-font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --bs-body-bg:          var(--brand-bg);
  --bs-body-color:       var(--brand-text-primary);
  --bs-border-color:     var(--brand-border);
  --bs-link-color:       var(--brand-accent);
  --bs-link-hover-color: var(--brand-accent-700);
}

/* --- Base --- */
body {
  font-family: var(--bs-body-font-family);
  background-color: var(--brand-bg);
  color: var(--brand-text-primary);
  -webkit-font-smoothing: antialiased;
}

/* --- Accesibilidad: Focus Ring (WCAG 2.1 AA) — No se elimina outline --- */
:focus-visible {
  outline: 2px solid var(--brand-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.25);
}

/* --- Tipografía — Jerarquía Digital --- */
h1, .h1 { font-size: 3rem;    font-weight: 700; line-height: 1.15; } /* 48px Bold */
h2, .h2 { font-size: 2.25rem; font-weight: 700; line-height: 1.2;  } /* 36px Bold */
h3, .h3 { font-size: 1.75rem; font-weight: 600; line-height: 1.25; } /* 28px SemiBold */
h4, .h4 { font-size: 1.25rem; font-weight: 600; line-height: 1.3;  } /* 20px SemiBold */

.body-text { font-size: 1rem;     font-weight: 400; } /* 16px Regular */
.text-secondary,
small, .small  { font-size: 0.875rem; font-weight: 400; color: var(--brand-text-secondary); }

label.form-label,
.badge, .tag   { font-size: 0.875rem; font-weight: 500; } /* 14px Medium */

/* REGLA OBLIGATORIA: Números tabulares en celdas numéricas y KPIs */
.tabular-nums,
td.numeric,
.kpi-value     { font-variant-numeric: tabular-nums; }

/* --- Navbar — Deep Executive Navy --- */
.navbar {
  background-color: var(--brand-nav);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.navbar .navbar-brand {
  letter-spacing: 0.2px;
}

/* Texto de navegación principal */
.nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
  border-radius: 6px;
  padding: 6px 12px !important;
  transition: color 0.15s ease, background-color 0.15s ease;
}

/* Hover de links */
.nav-link:hover {
  color: rgba(255, 255, 255, 0.95) !important;
  background-color: rgba(255, 255, 255, 0.08);
}

/* Estado activo del link */
.nav-link.active {
  color: var(--brand-accent) !important;
  background-color: var(--brand-accent-soft);
}

/* Logo de marca */
.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
  flex-shrink: 0;
}

.text-accent { color: var(--brand-accent); }

/* --- App Shell --- */
.app-shell {
  margin-top: 2rem;
  margin-bottom: 3rem;
}

/* --- Card / Surface --- */
.card.shadow-soft {
  background: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05), 0 8px 24px rgba(16, 24, 40, 0.07);
}

/* --- Botón Primario — Azul Documento --- */
.btn-brand {
  --bs-btn-color:              var(--brand-accent-text);
  --bs-btn-bg:                 var(--brand-accent);
  --bs-btn-border-color:       var(--brand-accent);
  --bs-btn-hover-color:        var(--brand-accent-text);
  --bs-btn-hover-bg:           var(--brand-accent-700);
  --bs-btn-hover-border-color: var(--brand-accent-700);
  --bs-btn-focus-shadow-rgb:   37, 99, 235;
  --bs-btn-active-color:       var(--brand-accent-text);
  --bs-btn-active-bg:          var(--brand-accent-700);
  --bs-btn-active-border-color: var(--brand-accent-700);
  font-weight: 500;
}

/* --- Botón Outline --- */
.btn-brand-outline {
  --bs-btn-color:              var(--brand-accent);
  --bs-btn-border-color:       var(--brand-accent);
  --bs-btn-hover-color:        var(--brand-accent-text);
  --bs-btn-hover-bg:           var(--brand-accent);
  --bs-btn-hover-border-color: var(--brand-accent);
  --bs-btn-focus-shadow-rgb:   37, 99, 235;
  font-weight: 500;
}

/* --- Controles de Formulario --- */
.form-control:focus,
.form-select:focus {
  border-color: var(--brand-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.20);
}

/* --- Zona de Carga de Archivos --- */
.upload-zone .form-control[type="file"] {
  padding: 10px 14px;
  border: 1.5px dashed var(--brand-border);
  border-radius: 8px;
  background: var(--brand-bg);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.upload-zone .form-control[type="file"]:hover {
  border-color: var(--brand-accent);
  background: rgba(37, 99, 235, 0.03);
}

.upload-zone .form-control[type="file"]:focus {
  border-color: var(--brand-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.20);
}

/* --- Panel de Instrucciones (collapsible) --- */
.instructions-panel {
  border: 1px solid var(--brand-border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--brand-surface);
}

.instructions-panel summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--brand-text-secondary);
  background: var(--brand-bg);
  border-radius: 12px;
  transition: background-color 0.15s ease, color 0.15s ease;
  user-select: none;
}

.instructions-panel summary::-webkit-details-marker { display: none; }

.instructions-panel summary::before {
  content: '▶';
  font-size: 0.65rem;
  color: var(--brand-text-secondary);
  transition: transform 0.2s ease;
}

.instructions-panel[open] summary::before {
  transform: rotate(90deg);
}

.instructions-panel summary:hover {
  background-color: var(--brand-row-hover);
  color: var(--brand-text-primary);
}

.instructions-panel[open] summary {
  border-radius: 12px 12px 0 0;
  border-bottom: 1px solid var(--brand-border);
}

.instructions-body {
  padding: 16px 20px;
  font-size: 0.9375rem;
  color: var(--brand-text-secondary);
  line-height: 1.6;
}

.instructions-body ol {
  padding-left: 1.25rem;
  margin-bottom: 0.75rem;
}

.instructions-body li {
  margin-bottom: 4px;
}

/* --- Alertas Semánticas --- */
.alert {
  border-radius: 10px;
  font-size: 0.9375rem;
}

.alert-danger  { border-left: 4px solid var(--semantic-error);   }
.alert-warning { border-left: 4px solid var(--semantic-warning); }
.alert-info    { border-left: 4px solid var(--semantic-info);    }
.alert-success { border-left: 4px solid var(--semantic-success); }

/* --- Etiqueta de Sección --- */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--brand-text-secondary);
  margin-bottom: 0.75rem;
}

/* --- Tabla de Resultados PDF --- */
.table-pdf {
  --bs-table-hover-bg: var(--brand-row-hover);
  margin-bottom: 0;
}

.table-pdf > thead > tr > th {
  padding: 10px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--brand-text-secondary);
  background-color: var(--brand-bg);
  border-bottom: 1px solid var(--brand-border);
  border-top: none;
}

/* Altura mínima de fila: 44px (área táctil óptima) — padding 12px v / 16px h */
.table-pdf > tbody > tr > td {
  padding: 12px 16px;
  vertical-align: middle;
  border-bottom: 1px solid var(--brand-border);
  font-variant-numeric: tabular-nums;
  font-size: 0.9375rem;
}

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

.table-pdf > tbody > tr:hover > td {
  background-color: var(--brand-row-hover);
}

/* --- Divisor de Secciones --- */
.section-divider {
  border: none;
  border-top: 1px solid var(--brand-border);
  margin: 1.5rem 0;
}

/* --- Footer — Dentro de card --- */
.app-footer {
  background-color: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: 16px;
  padding: 36px 40px;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--brand-text-secondary);
}

.footer-container {
  display: flex;
  gap: 40px;
  justify-content: space-between;
  flex-wrap: wrap;
}

.footer-column {
  flex: 1;
  min-width: 220px;
}

.footer-icon {
  font-size: 1.1rem;
  color: var(--brand-accent);
  margin-bottom: 8px;
}

.footer-column h4 {
  margin-top: 6px;
  margin-bottom: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--brand-text-primary);
}

.footer-column p {
  margin-bottom: 8px;
  line-height: 1.6;
}

.footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-column ul li {
  margin-bottom: 6px;
  line-height: 1.5;
}

.footer-column a {
  text-decoration: none;
  color: var(--brand-accent);
}

.footer-column a:hover {
  text-decoration: underline;
  color: var(--brand-accent-700);
}