/* 
========================================================================
   MODULOR.CL — ESTILOS EDITORIALES PREMIUM PARA ARQUITECTOS
   Inspirado en el diseño suizo, la retícula clásica y la legibilidad
======================================================================== 
*/

/* ---------------------------------------------------------------------
   1. VARIABLES DE DISEÑO (SISTEMA DE TOKENS)
   --------------------------------------------------------------------- */
:root {
  /* Tipografía */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Paleta de Colores (Modo Claro Warm Minimalist por defecto) */
  --bg-primary: #fdfdfc;
  --bg-secondary: #f6f5f2;
  --bg-tertiary: #eeede9;
  --text-primary: #1c1c1a;
  --text-secondary: #565551;
  --text-muted: #8c8a82;
  --accent: #b91c1c; /* Rojo Ladrillo/Carmín Premium */
  --accent-hover: #991b1b;
  --accent-light: #fef2f2;
  --border-color: #e5e3dd;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 12px rgba(28,28,26,0.04);
  --bg-header: rgba(253, 253, 252, 0.85);
  
  /* Layout y Lectura */
  --max-width-content: 72ch; /* Ancho áureo ideal de lectura */
  --header-height: 70px;
}

/* Modo Claro Forzado Manualmente */
html.light-theme {
  --bg-primary: #fdfdfc;
  --bg-secondary: #f6f5f2;
  --bg-tertiary: #eeede9;
  --text-primary: #1c1c1a;
  --text-secondary: #565551;
  --text-muted: #8c8a82;
  --accent: #b91c1c;
  --accent-hover: #991b1b;
  --accent-light: #fef2f2;
  --border-color: #e5e3dd;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 12px rgba(28,28,26,0.04);
  --bg-header: rgba(253, 253, 252, 0.85);
}

/* Modo Oscuro Forzado Manualmente */
html.dark-theme {
  --bg-primary: #121212;
  --bg-secondary: #1a1a19;
  --bg-tertiary: #242422;
  --text-primary: #f3f3f2;
  --text-secondary: #a3a29e;
  --text-muted: #6e6d69;
  --accent: #ef4444; /* Rojo Luminoso para Modo Oscuro */
  --accent-hover: #fca5a5;
  --accent-light: #3f1a1a;
  --border-color: #2c2c2a;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --bg-header: rgba(18, 18, 18, 0.85);
}

/* ---------------------------------------------------------------------
   2. REINICIO Y ESTILOS BASE
   --------------------------------------------------------------------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: calc(16px * var(--font-scale, 1));
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  transition: background-color 0.3s, color 0.3s;
}

/* ---------------------------------------------------------------------
   3. TIPOGRAFÍA EDITORIAL
   --------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-top: 1.8em;
  margin-bottom: 0.6em;
}

h1 {
  font-size: 2.25rem;
  margin-top: 0;
  font-weight: 700;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

h2 {
  font-size: 1.65rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.3rem;
}

h3 {
  font-size: 1.3rem;
  color: var(--accent);
}

p {
  margin-bottom: 1.3em;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

strong {
  color: var(--text-primary);
  font-weight: 600;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s;
  border-bottom: 1px solid transparent;
}

a:hover {
  color: var(--accent-hover);
  border-bottom: 1px solid var(--accent-hover);
}

/* ---------------------------------------------------------------------
   4. ESTRUCTURA Y LAYOUT (GRID)
   --------------------------------------------------------------------- */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background-color: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  transition: background-color 0.3s, border-color 0.3s;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.logo span {
  color: var(--accent);
}

.logo:hover {
  border: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  border-bottom: 2px solid var(--accent);
}

/* Contenido Principal Modular */
.main-wrapper {
  display: grid;
  grid-template-columns: 260px 1fr 260px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
  gap: 2.5rem;
  flex: 1;
}

/* Ajustes responsivos para las 3 columnas */
@media (max-width: 1100px) {
  .main-wrapper {
    grid-template-columns: 220px 1fr;
  }
  .sidebar-ads {
    display: none;
  }
}

@media (max-width: 800px) {
  .main-wrapper {
    grid-template-columns: 1fr;
    padding: 1rem;
  }
  .sidebar-toc {
    display: none;
  }
}

/* ---------------------------------------------------------------------
   5. NAVEGACIÓN Y MENÚ LATERAL (TOC)
   --------------------------------------------------------------------- */
.sidebar-toc {
  position: sticky;
  top: calc(var(--header-height) + 2rem);
  height: calc(100vh - var(--header-height) - 4rem);
  overflow-y: auto;
  padding-right: 0.5rem;
}

.sidebar-toc::-webkit-scrollbar {
  width: 4px;
}
.sidebar-toc::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 2px;
}

.toc-title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-weight: 700;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.toc-item a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.3;
  display: block;
  padding: 0.2rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.8rem;
}

.toc-item a:hover {
  color: var(--text-primary);
  border-left: 2px solid var(--border-color);
}

.toc-item.active a {
  color: var(--accent);
  font-weight: 500;
  border-left: 2px solid var(--accent);
}

/* ---------------------------------------------------------------------
   6. ARTÍCULO DE LECTURA (ZONA ÁUREA)
   --------------------------------------------------------------------- */
.content-article {
  max-width: var(--max-width-content);
  width: 100%;
  margin: 0 auto;
  padding-bottom: 5rem;
}

/* Listas ordenadas e inordenadas */
.content-article ul,
.content-article ol {
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.content-article li {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

/* Divisores elegantes */
.content-article hr {
  border: 0;
  height: 1px;
  background-color: var(--border-color);
  margin: 2.5rem 0;
}

/* Alertas de estilo GitHub (Markdown extension) */
.content-article blockquote {
  border-left: 4px solid var(--accent);
  padding: 1rem 1.25rem;
  background-color: var(--bg-secondary);
  border-radius: 0 6px 6px 0;
  margin: 1.8rem 0;
}

.content-article blockquote p {
  margin-bottom: 0;
  font-size: 1rem;
  font-style: italic;
}

/* Imágenes Responsivas */
.content-article img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1.5rem auto;
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
}

/* Tablas Responsivas */
.table-container {
  width: 100%;
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: var(--bg-primary);
}

.content-article table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.content-article th, 
.content-article td {
  padding: 0.8rem 1.2rem;
  border-bottom: 1px solid var(--border-color);
}

.content-article th {
  background-color: var(--bg-secondary);
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text-primary);
}

.content-article tr:last-child td {
  border-bottom: none;
}

.content-article tr:hover {
  background-color: var(--bg-secondary);
}

/* ---------------------------------------------------------------------
   7. INTEGRACIÓN ELEGANTE DE GOOGLE ADSENSE
   --------------------------------------------------------------------- */
.adsense-slot {
  margin: 2.5rem auto;
  padding: 1.5rem 1rem 1rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  display: block;
  text-align: center;
  min-height: 120px;
  position: relative;
}

.adsense-slot::before {
  content: "Publicidad";
  position: absolute;
  top: 4px;
  left: 8px;
  font-size: 0.65rem;
  font-family: var(--font-body);
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.sidebar-ads {
  position: sticky;
  top: calc(var(--header-height) + 2rem);
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-self: start;
}

.sidebar-ads-slot {
  width: 100%;
  padding-top: 1.5rem;
  min-height: 250px;
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  display: block;
  text-align: center;
  position: relative;
}

.sidebar-ads-slot::before {
  content: "Publicidad";
  position: absolute;
  top: 4px;
  left: 8px;
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ---------------------------------------------------------------------
   8. BUSCADOR INSTANTÁNEO E INTERFAZ HOME
   --------------------------------------------------------------------- */
.hero-search-section {
  max-width: 800px;
  width: 100%;
  margin: 4rem auto;
  text-align: center;
  padding: 0 1rem;
}

.hero-search-section h2 {
  font-size: 2.5rem;
  letter-spacing: -0.04em;
  margin-bottom: 0.8rem;
  border-bottom: none;
  padding: 0;
}

.hero-search-section p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.search-container {
  position: relative;
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
}

.search-input {
  width: 100%;
  padding: 1.1rem 1.5rem 1.1rem 3.5rem;
  font-size: 1.1rem;
  font-family: var(--font-body);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease-in-out;
}

.search-input:focus {
  border-color: var(--accent);
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-md);
}

.search-icon {
  position: absolute;
  left: 1.3rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Resultados de búsqueda rápidos */
.search-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  margin-top: 0.5rem;
  z-index: 10;
  max-height: 400px;
  overflow-y: auto;
  display: none;
  text-align: left;
}

.search-results::-webkit-scrollbar {
  width: 6px;
}
.search-results::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 3px;
}

.search-result-item {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background-color 0.2s;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background-color: var(--bg-secondary);
}

.search-result-item .item-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--accent);
  margin-bottom: 0.2rem;
}

.search-result-item .item-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------------------------------------------------------------------
   9. ELEMENTOS DE PIE DE PÁGINA (FOOTER)
   --------------------------------------------------------------------- */
.site-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: auto;
}

.site-footer p {
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ---------------------------------------------------------------------
   10. BARRA SUPERIOR INFORMATIVA Y DE ACCESIBILIDAD (TOP BAR)
   --------------------------------------------------------------------- */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.4rem 1.5rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  min-height: 36px;
  width: 100%;
}

.top-bar-indicators {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.indicator-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 500;
}

.indicator-item i {
  color: var(--accent);
  width: 14px;
  height: 14px;
}

.indicator-item .val {
  font-weight: 600;
  color: var(--text-primary);
}

.top-bar-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.control-group {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  overflow: hidden;
  height: 26px;
}

.control-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 0 0.5rem;
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 600;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s, color 0.2s;
}

.control-btn:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.control-btn.active {
  background-color: var(--accent);
  color: #ffffff;
}

/* Slider Dimmer de Tema */
.theme-dimmer-container {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.theme-dimmer-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 70px;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  transition: background-color 0.2s;
}

.theme-dimmer-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform 0.1s, background-color 0.2s;
}

.theme-dimmer-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  background: var(--accent-hover);
}

.theme-dimmer-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform 0.1s, background-color 0.2s;
}

.theme-dimmer-slider::-moz-range-thumb:hover {
  transform: scale(1.2);
  background: var(--accent-hover);
}

.loading-indicator {
  font-style: italic;
  color: var(--text-muted);
}

/* ---------------------------------------------------------------------
   11. ESTILOS DE LA SUITE DE HERRAMIENTAS Y CALCULADORAS PROFESIONALES
   --------------------------------------------------------------------- */
.tool-list-item:hover {
  background-color: var(--bg-tertiary) !important;
  border-color: var(--accent) !important;
  transform: translateX(3px);
}

.calc-container {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  margin: 1.5rem 0 2.5rem 0;
  transition: background-color 0.3s, border-color 0.3s;
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: left;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input, .form-select {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

.form-input:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}

.calc-btn-container {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.calc-btn {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.7rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: background-color 0.2s, border-color 0.2s, transform 0.1s;
}

.calc-btn.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}

.calc-btn.btn-primary:hover {
  background-color: var(--accent-hover);
}

.calc-btn.btn-secondary {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.calc-btn.btn-secondary:hover {
  background-color: var(--border-color);
}

.calc-btn:active {
  transform: scale(0.98);
}

/* Panel de Resultados del Cálculo */
.calc-results {
  margin-top: 2rem;
  border-top: 2px dashed var(--border-color);
  padding-top: 2rem;
  display: none; /* Se activa mediante JS */
}

.result-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.result-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.result-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--bg-secondary);
  font-size: 0.95rem;
}

.result-row:last-child {
  border-bottom: none;
}

.result-row .lbl {
  color: var(--text-secondary);
}

.result-row .val {
  font-weight: 600;
  color: var(--text-primary);
}

/* Insignias de Cumplimiento */
.badge-status {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 4px;
  text-transform: uppercase;
}

.badge-status.success {
  background-color: #d1fae5;
  color: #065f46;
}

.badge-status.error {
  background-color: #fee2e2;
  color: #991b1b;
}

.badge-status.warning {
  background-color: #fef3c7;
  color: #92400e;
}

/* Grilla del Cuadro de Superficies */
.surface-table-container {
  overflow-x: auto;
  margin-bottom: 1rem;
}

.surface-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.surface-table th, .surface-table td {
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.8rem;
  text-align: left;
}

.surface-table th {
  background-color: var(--bg-tertiary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.surface-table tbody tr:hover {
  background-color: var(--bg-primary);
}

.surface-table td input {
  width: 100%;
  border: none;
  background: none;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  outline: none;
  padding: 0.2rem 0;
}

.surface-table td input:focus {
  background-color: var(--bg-primary);
  box-shadow: 0 0 0 1px var(--accent);
  border-radius: 2px;
}

.surface-actions-cell {
  display: flex;
  gap: 0.5rem;
}

.row-delete-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  padding: 0.2rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.row-delete-btn:hover {
  background-color: var(--accent-light);
}

/* ---------------------------------------------------------------------
   12. HOJA DE ESTILOS DE IMPRESIÓN MUNICIPAL PROFESIONAL (PDF DOM)
   --------------------------------------------------------------------- */
@media print {
  /* Forzar colores de fondo de impresión y tamaño de papel */
  @page {
    size: letter;
    margin: 1.5cm;
  }
  
  html, body {
    background-color: #ffffff !important;
    color: #000000 !important;
    font-size: 11pt !important;
    line-height: 1.5 !important;
  }

  /* Asegurar fondo blanco en la vista de impresión para todos los contenedores y celdas */
  #print-report-container,
  #print-report-container table,
  #print-report-container tr,
  #print-report-container td {
    background-color: #ffffff;
    color: #000000 !important;
  }


  /* Ocultar elementos irrelevantes de navegación y controles web */
  .top-bar,
  .site-header,
  .sidebar-toc,
  .sidebar-ads,
  .site-footer,
  .prev-next-nav,
  .calc-btn-container,
  .adsense-slot,
  .theme-dimmer-container,
  .top-bar-controls,
  button,
  .row-delete-btn,
  .surface-actions-cell {
    display: none !important;
  }

  /* Expandir contenedor principal a ancho completo sin márgenes web */
  .app-container {
    display: block !important;
    min-height: 0 !important;
    width: 100% !important;
  }

  .main-wrapper {
    display: block !important;
    padding: 0 !important;
    margin: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .content-article {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .calc-container {
    background-color: #ffffff !important;
    border: 1px solid #000000 !important;
    border-radius: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  /* Mostrar la sección de resultados siempre y forzar su visibilidad */
  .calc-results {
    display: block !important;
    border-top: 1px solid #000000 !important;
    margin-top: 1.5cm !important;
    padding-top: 1cm !important;
    page-break-inside: avoid;
  }

  /* Tablas de resultados para papel */
  .surface-table, table {
    width: 100% !important;
    border-collapse: collapse !important;
    margin: 0.5cm 0 !important;
  }

  .surface-table th, table th {
    background-color: #f3f4f6 !important;
    color: #000000 !important;
    border: 1px solid #000000 !important;
    font-size: 9pt !important;
    text-transform: uppercase !important;
  }

  .surface-table td, table td {
    border: 1px solid #000000 !important;
    padding: 6pt !important;
    color: #000000 !important;
    font-size: 10pt !important;
  }

  .surface-table td input {
    border: none !important;
    box-shadow: none !important;
    color: #000000 !important;
    background: transparent !important;
  }

  /* Campos de formulario rellenados en papel */
  .form-input, .form-select {
    border: none !important;
    border-bottom: 1px solid #000000 !important;
    border-radius: 0 !important;
    padding: 2pt 0 !important;
    background: transparent !important;
    color: #000000 !important;
    -webkit-appearance: none !important;
    appearance: none !important;
  }

  /* Estilos de Insignias para Blanco y Negro */
  .badge-status {
    border: 1px solid #000000 !important;
    background: transparent !important;
    color: #000000 !important;
    font-size: 8pt !important;
    padding: 1pt 4pt !important;
  }

  /* Caja de Firmas y Timbres del Profesional DOM */
  .print-signature-section {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: 2cm;
    margin-top: 2.5cm !important;
    page-break-inside: avoid;
  }

  .print-signature-box {
    border-top: 1px solid #000000 !important;
    text-align: center !important;
    padding-top: 0.3cm !important;
    font-size: 9pt !important;
    color: #000000 !important;
  }

  /* Cabecera de Memoria Formal */
  .print-document-header {
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #000000 !important;
    padding-bottom: 0.4cm !important;
    margin-bottom: 1cm !important;
  }

  .print-document-header .logo-print {
    font-family: var(--font-heading);
    font-size: 16pt !important;
    font-weight: 700 !important;
    color: #000000 !important;
  }

  .print-document-header .meta-print {
    text-align: right !important;
    font-size: 8pt !important;
    color: #333333 !important;
  }
}

/* ---------------------------------------------------------------------
   13. ESTILOS DEL BUSCADOR GLOBAL EN CABECERA (GLOBAL HEADER SEARCH)
   --------------------------------------------------------------------- */
.header-search-container {
  position: relative;
  margin-left: 1.5rem;
  display: flex;
  align-items: center;
  z-index: 101;
}

.header-search-input {
  width: 170px;
  height: 34px;
  padding: 0.5rem 1rem 0.5rem 2.2rem;
  font-size: 0.85rem;
  font-family: var(--font-body);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-search-input:focus {
  width: 260px;
  border-color: var(--accent);
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-sm);
}

.header-search-icon {
  position: absolute;
  left: 0.8rem;
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  pointer-events: none;
  transition: color 0.2s;
}

.header-search-input:focus + .header-search-icon {
  color: var(--accent);
}

.header-search-results {
  position: absolute;
  top: 100%;
  right: 0;
  width: 380px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  margin-top: 0.6rem;
  z-index: 200;
  max-height: 380px;
  overflow-y: auto;
  display: none;
  text-align: left;
}

/* Ocultar el buscador del header cuando se imprime para limpieza */
@media print {
  .header-search-container {
    display: none !important;
  }
}

/* Responsividad del buscador en pantallas medianas y móviles */
@media (max-width: 900px) {
  .site-header {
    padding: 0 1rem;
  }
  .nav-links {
    gap: 1rem;
  }
  .nav-links a {
    font-size: 0.85rem;
  }
  .header-search-input {
    width: 110px;
  }
  .header-search-input:focus {
    width: 170px;
  }
  .header-search-results {
    width: 300px;
  }
}

@media (max-width: 650px) {
  /* En pantallas móviles angostas, permitimos scroll horizontal suave en el menú y achicamos el buscador */
  .nav-links {
    overflow-x: auto;
    white-space: nowrap;
    max-width: 50%;
    padding-bottom: 4px;
    gap: 0.8rem;
  }
  .nav-links::-webkit-scrollbar {
    display: none;
  }
  .header-search-container {
    margin-left: 0.5rem;
  }
  .header-search-input {
    width: 75px;
    padding-left: 1.8rem;
  }
  .header-search-icon {
    left: 0.6rem;
  }
  .header-search-input:focus {
    width: 115px;
  }
  .header-search-results {
    width: 250px;
  }
}

/* =====================================================================
   14. ESTILOS DE CATÁLOGOS DE SOLUCIONES CONSTRUCTIVAS (LIVE TABLES / UI)
   ===================================================================== */
.soluciones-wrapper {
  margin-top: 2rem;
}

.soluciones-filter-panel {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.soluciones-search-box {
  position: relative;
  width: 100%;
}

.soluciones-search-input {
  width: 100%;
  padding: 0.8rem 1rem 0.8rem 2.8rem;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  font-family: var(--font-body);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.soluciones-search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-light);
}

.soluciones-search-box i {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.soluciones-controls-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.soluciones-filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.soluciones-filter-group label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
}

.soluciones-select {
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  cursor: pointer;
  width: 100%;
  transition: border-color 0.2s;
}

.soluciones-select:focus {
  border-color: var(--accent);
}

.soluciones-stats-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.soluciones-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.soluciones-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}

.soluciones-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: var(--accent-light);
}

.soluciones-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.soluciones-card-title-group {
  flex: 1;
}

.soluciones-card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 0.3rem 0;
  color: var(--text-primary);
}

.soluciones-badges-group {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

.soluciones-badge-code {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: monospace;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  cursor: pointer;
  user-select: all;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.soluciones-badge-code:hover {
  background-color: var(--border-color);
  border-color: var(--text-muted);
}

.soluciones-badge-performance {
  background-color: var(--accent);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.soluciones-badge-traditional {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.soluciones-card-desc {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
}

.soluciones-card-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.8rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--bg-secondary);
  padding-top: 0.8rem;
}

.soluciones-meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.soluciones-meta-item strong {
  color: var(--text-secondary);
}

/* Thermal specific display layouts */
.soluciones-zones-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
  gap: 0.4rem;
  margin-top: 0.8rem;
  border-top: 1px solid var(--bg-secondary);
  padding-top: 0.8rem;
}

.soluciones-zone-cell {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.4rem;
  text-align: center;
  font-size: 0.8rem;
}

.soluciones-zone-name {
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.7rem;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.soluciones-zone-value {
  font-weight: 600;
  color: var(--text-primary);
}

.soluciones-options-table-container {
  margin-top: 0.8rem;
  border-top: 1px solid var(--bg-secondary);
  padding-top: 0.8rem;
}

.soluciones-options-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.soluciones-options-table th, .soluciones-options-table td {
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.6rem;
  text-align: center;
}

.soluciones-options-table th {
  background-color: var(--bg-secondary);
  font-weight: 600;
}

.soluciones-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}

.soluciones-page-btn {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.soluciones-page-btn:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
  background-color: var(--bg-secondary);
}

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

.soluciones-no-results {
  text-align: center;
  padding: 4rem 2rem;
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  border-radius: 8px;
  color: var(--text-muted);
}

.soluciones-no-results i {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.soluciones-no-results h3 {
  margin: 0 0 0.5rem 0;
  color: var(--text-secondary);
}

/* Print Styles for Solutions UI */
@media print {
  .soluciones-filter-panel,
  .soluciones-stats-bar,
  .soluciones-pagination,
  .soluciones-badge-code i {
    display: none !important;
  }
  
  .soluciones-grid {
    display: block !important;
    gap: 0 !important;
  }
  
  .soluciones-card {
    page-break-inside: avoid !important;
    border: 1px solid #000000 !important;
    box-shadow: none !important;
    margin-bottom: 0.5cm !important;
    padding: 0.4cm !important;
    background: transparent !important;
    color: #000000 !important;
  }
  
  .soluciones-card-title {
    color: #000000 !important;
    font-size: 11pt !important;
  }
  
  .soluciones-badge-code {
    border: 1px solid #000000 !important;
    color: #000000 !important;
    background: transparent !important;
  }
  
  .soluciones-badge-performance {
    border: 1px solid #000000 !important;
    color: #000000 !important;
    background: transparent !important;
  }
  
  .soluciones-card-desc {
    color: #000000 !important;
    font-size: 9.5pt !important;
  }
  
  .soluciones-card-meta {
    border-top: 1px solid #000000 !important;
    color: #000000 !important;
  }
  
  .soluciones-meta-item strong {
    color: #000000 !important;
  }
  
  .soluciones-zone-cell {
    border: 1px solid #000000 !important;
    background: transparent !important;
  }
  
  .soluciones-options-table th {
    border: 1px solid #000000 !important;
    background: #f3f4f6 !important;
  }
  
  .soluciones-options-table td {
    border: 1px solid #000000 !important;
  }
}

/* ---------------------------------------------------------------------
   12. MENÚS DESPLEGABLES (DROPDOWNS) EN CABECERA
   --------------------------------------------------------------------- */
.nav-item-dropdown {
  position: relative;
}

/* El elemento a:hover no debe romper el área de hover del contenedor */
.nav-item-dropdown .dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding-bottom: 0.5rem; /* Asegura un túnel continuo de hover sin espacios vacíos */
  margin-bottom: -0.5rem;
}

.dropdown-chevron {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
  color: var(--text-muted);
}

.nav-item-dropdown:hover .dropdown-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

/* Contenedor general del dropdown */
.dropdown-menu {
  position: absolute;
  top: 100%; /* Sin separación física para evitar pérdidas de hover */
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  padding: 1rem;
  display: none;
  z-index: 1000;
  list-style: none;
  animation: fadeInDropdown 0.2s ease-out;
}

/* Puente invisible para mantener el hover activo al deslizar el cursor hacia abajo */
.dropdown-menu::before {
  content: "";
  position: absolute;
  top: -15px;
  left: 0;
  right: 0;
  height: 15px;
  background-color: transparent;
}

/* Asegurar que el menú se quede abierto si pasamos el mouse por encima */
.nav-item-dropdown:hover .dropdown-menu {
  display: block;
}

@keyframes fadeInDropdown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* Estilos para el dropdown simple de Soluciones */
.solutions-dropdown {
  width: 250px;
  display: none; /* Se sobreescribe por hover */
  flex-direction: column;
  gap: 0.2rem;
}

.solutions-dropdown li {
  margin: 0;
  padding: 0;
}

.solutions-dropdown li a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.8rem;
  border-radius: 5px;
  color: var(--text-secondary) !important;
  font-weight: 500;
  font-size: 0.88rem !important;
  border-bottom: none !important;
  transition: background-color 0.2s, color 0.2s;
}

.solutions-dropdown li a:hover {
  background-color: var(--bg-secondary);
  color: var(--accent) !important;
}

.solutions-dropdown li a .menu-icon {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}

.solutions-dropdown li a:hover .menu-icon {
  color: var(--accent);
}

/* Estilos para el Mega Dropdown de Herramientas */
.tools-dropdown {
  width: 480px;
  display: none; /* Se sobreescribe por hover */
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  padding: 1.2rem;
}

/* Cuando hover esté activo en Herramientas, usar grid */
.nav-item-dropdown:hover .tools-dropdown {
  display: grid;
}

.mega-dropdown-col {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.mega-dropdown-col h4 {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.4rem;
  margin: 0;
}

.mega-dropdown-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin: 0 !important;
}

.mega-dropdown-col ul li {
  margin: 0;
  padding: 0;
}

.mega-dropdown-col ul li a {
  display: block;
  padding: 0.5rem 0.6rem;
  border-radius: 4px;
  font-size: 0.88rem !important;
  color: var(--text-secondary) !important;
  font-weight: 500;
  border-bottom: none !important;
  transition: background-color 0.2s, color 0.2s;
  text-align: left;
}

.mega-dropdown-col ul li a:hover {
  background-color: var(--bg-secondary);
  color: var(--accent) !important;
}

/* Fallback / Ocultar en Mobile (se maneja por media query) */
@media (max-width: 650px) {
  .dropdown-menu,
  .nav-item-dropdown:hover .dropdown-menu,
  .nav-item-dropdown:hover .tools-dropdown {
    display: none !important; /* En móviles se desactiva el hover y funciona como link directo */
  }
  .dropdown-chevron {
    display: none; /* Ocultamos la flecha en pantallas chicas para limpieza */
  }
}

/* Card de Descargas Global */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
  width: 100%;
}

.download-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  width: 100%;
  box-sizing: border-box;
}

.download-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1) !important;
  border-color: var(--accent) !important;
}