/* src/styles.css — Estilos técnicos de paquetería y logística para envioschile.cl */
/* Regla de poco aire arriba (<= 32px desktop, <= 24px móvil), 0 emojis y 100% responsivo desde 320px */

:root {
  --bg: #F8F6F1;
  --bg-card: #FFFFFF;
  --bg-subtle: #F1ECE3;
  --border: #D6CFC2;
  --border-strong: #A89F91;
  --text: #18181B;
  --text-muted: #52525B;
  --text-light: #71717A;
  
  --primary: #EA580C; /* Naranja logístico de alto impacto */
  --primary-hover: #C2410C;
  --primary-light: #FFEDD5;
  --courier-blue: #0284C7; /* Azul transporte y seguimiento */
  --courier-blue-light: #E0F2FE;
  --success: #16A34A; /* Verde verificado / peso físico */
  --success-light: #DCFCE7;
  --warning: #D97706; /* Ámbar alerta peso volumétrico */
  --warning-light: #FEF3C7;
  --danger: #DC2626;
  --danger-light: #FEE2E2;

  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", var(--font-sans);
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(24, 24, 27, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(24, 24, 27, 0.07), 0 2px 4px -2px rgba(24, 24, 27, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141312;
    --bg-card: #1E1C1A;
    --bg-subtle: #292623;
    --border: #3D3934;
    --border-strong: #5E5851;
    --text: #F4F4F5;
    --text-muted: #A1A1AA;
    --text-light: #71717A;
    --primary-light: #431407;
    --courier-blue-light: #082F49;
    --success-light: #052E16;
    --warning-light: #451A03;
    --danger-light: #450A0A;
  }
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--courier-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--primary);
}

/* ==========================================================================
   Cabecera Compacta (Regla de poco aire: <= 32px desktop, <= 24px móvil)
   ========================================================================== */
.site-header {
  background: var(--bg-card);
  border-bottom: 2px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text);
  min-height: 36px;
}

.brand-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.brand-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand-tld {
  color: var(--primary);
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--text);
  background: var(--bg-subtle);
}

.nav-link.active {
  border-bottom: 2px solid var(--primary);
}

/* ==========================================================================
   Contenedor Principal y Encabezado
   ========================================================================== */
.main-container {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 14px 16px 40px;
}

.breadcrumbs {
  margin-bottom: 8px;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 6px;
  font-size: 12px;
  color: var(--text-light);
  flex-wrap: wrap;
}

.breadcrumb-list a {
  color: var(--text-light);
  text-decoration: none;
}

.breadcrumb-list a:hover {
  color: var(--text);
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--border-strong);
}

.page-header {
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border);
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.5vw, 30px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 4px;
}

.page-subheading {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 820px;
  line-height: 1.45;
}

/* ==========================================================================
   Calculadora de Peso Volumétrico (Herramienta Estrella)
   ========================================================================== */
.calculator-section {
  margin-bottom: 24px;
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 900px) {
  .calculator-grid {
    grid-template-columns: 380px 1fr;
    align-items: start;
  }
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.card-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.inputs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 14px;
}

.input-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.input-field label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}

.input-field input {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s;
}

.input-field input:focus {
  border-color: var(--primary);
  background: var(--bg-card);
  box-shadow: 0 0 0 2px var(--primary-light);
}

.field-hint {
  font-size: 12px;
  color: var(--text-light);
}

/* Presets */
.presets-block {
  margin-bottom: 14px;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
}

.presets-title {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.preset-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.preset-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}

.preset-btn:hover {
  background: var(--border);
  border-color: var(--border-strong);
}

/* Selector de Factor Divisor */
.factor-selector {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--border);
}

.factor-buttons {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.factor-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 44px;
  padding: 6px 10px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: all 0.15s;
}

.factor-btn strong {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text);
}

.factor-btn span {
  font-size: 12px;
  color: var(--text-muted);
}

.factor-btn.active {
  background: var(--primary);
  border-color: var(--primary);
}

.factor-btn.active strong {
  color: #FFFFFF;
}

.factor-btn.active span {
  color: rgba(255, 255, 255, 0.9);
}

/* Visualizador 2D / Axonométrico */
.box-preview-wrap {
  background: var(--bg-subtle);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 12px;
}

.box-svg {
  width: 100%;
  max-width: 240px;
  height: 110px;
}

.box-preview-caption {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-top: 4px;
}

/* Tarjetas de Resultados */
.results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.result-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
}

.result-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.result-value {
  font-size: 22px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text);
  line-height: 1.1;
}

.result-sub {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 2px;
}

.result-card.highlight-chargeable {
  background: var(--warning-light);
  border-color: var(--warning);
}

.result-card.highlight-chargeable .result-value {
  color: #92400E;
}

.result-card.highlight-physical {
  background: var(--success-light);
  border-color: var(--success);
}

.result-card.highlight-physical .result-value {
  color: #166534;
}

/* Veredicto Dinámico */
.verdict-banner {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid;
  margin-bottom: 12px;
}

.verdict-banner strong {
  display: block;
  font-size: 13.5px;
  margin-bottom: 4px;
}

.verdict-banner.volumetric {
  background: var(--warning-light);
  border-color: var(--warning);
  color: #78350F;
}

.verdict-banner.physical {
  background: var(--success-light);
  border-color: var(--success);
  color: #14532D;
}

.verdict-banner.equal {
  background: var(--courier-blue-light);
  border-color: var(--courier-blue);
  color: #0C4A6E;
}

.verdict-desc {
  font-size: 12.5px;
  line-height: 1.4;
}

.talla-badge-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  flex-wrap: wrap;
}

.talla-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.talla-badge {
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--bg-card);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  color: var(--text);
}

/* ==========================================================================
   Tablas de Datos Oficiales y Couriers
   ========================================================================== */
.section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.section-intro {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.5;
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 10px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  text-align: left;
}

.data-table th {
  background: var(--bg-subtle);
  color: var(--text);
  font-weight: 700;
  font-size: 12px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 8px 10px;
  border: 1px solid var(--border);
  vertical-align: middle;
}

.table-cell-sub {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 2px;
}

.table-foot-note {
  font-size: 12px;
  color: var(--text-light);
  font-style: italic;
}

.badge {
  display: inline-block;
  padding: 3px 7px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-mono);
}

.badge-vol {
  background: var(--warning-light);
  color: #92400E;
  border: 1px solid #F59E0B;
}

.badge-real {
  background: var(--success-light);
  color: #166534;
  border: 1px solid #22C55E;
}

.badge-alert {
  background: var(--danger-light);
  color: #991B1B;
  border: 1px solid #EF4444;
}

/* ==========================================================================
   Grillas de Contenido, Columnas y Tarjetas
   ========================================================================== */
.two-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 800px) {
  .two-columns {
    grid-template-columns: 1fr 1fr;
  }
}

.column-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.column-card p {
  font-size: 14px;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 10px;
}

.formula-box {
  background: var(--bg-subtle);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin: 10px 0;
}

.formula-box code {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text);
}

.tips-list {
  list-style: square;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text);
}

.tips-list li {
  margin-bottom: 8px;
}

/* FAQs */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.faq-question {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.faq-answer {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Páginas de Texto Largo (Prose Content)
   ========================================================================== */
.prose-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 20px;
}

.lead-text {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 16px;
  font-weight: 500;
}

.prose-content h2 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  margin: 20px 0 10px;
  letter-spacing: -0.02em;
}

.prose-content h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin: 16px 0 8px;
}

.prose-content p {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 12px;
}

.prose-content ul, .prose-content ol {
  padding-left: 20px;
  margin-bottom: 14px;
  font-size: 14px;
  line-height: 1.6;
}

.prose-content li {
  margin-bottom: 6px;
}

.steps-numbered {
  list-style: decimal;
}

.example-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: 16px 0;
}

.example-card h4 {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.scenarios-grid, .couriers-directory-grid, .states-grid, .variables-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 16px 0;
}

@media (min-width: 768px) {
  .scenarios-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .couriers-directory-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .states-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .variables-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.scenario-card, .courier-profile-card, .state-card, .var-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.scenario-badge {
  display: inline-block;
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.courier-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.courier-tag {
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--courier-blue-light);
  color: var(--courier-blue);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.courier-specs {
  list-style: none;
  padding: 0;
  margin: 10px 0;
  font-size: 13px;
}

.courier-specs li {
  margin-bottom: 4px;
}

.courier-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.btn-external {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  background: var(--primary);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}

.btn-external:hover {
  background: var(--primary-hover);
  color: #FFFFFF;
}

.link-subtle {
  font-size: 12.5px;
  color: var(--text-muted);
  text-align: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  background: var(--primary);
  color: #FFFFFF;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover {
  background: var(--primary-hover);
  color: #FFFFFF;
}

.cta-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin: 20px 0;
  text-align: center;
}

.cta-box h3 {
  margin-top: 0;
}

/* ==========================================================================
   Checklist de Embalaje y Mercancías Prohibidas
   ========================================================================== */
.checklist-container {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  padding: 14px;
  margin: 16px 0;
}

.checklist-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.checklist-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.check-item:hover {
  background: var(--bg-subtle);
}

.check-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
}

.check-body strong {
  display: block;
  font-size: 13.5px;
  color: var(--text);
  margin-bottom: 2px;
}

.check-body p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 0;
}

.prohibited-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 16px 0;
}

@media (min-width: 768px) {
  .prohibited-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.prohibited-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--danger);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.prohibited-card h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--danger);
  margin-bottom: 4px;
}

.prohibited-items {
  font-size: 13px;
  color: var(--text);
  margin-bottom: 4px;
}

.prohibited-reason {
  font-size: 12px;
  color: var(--text-muted);
}

.warning-callout {
  background: var(--danger-light);
  border: 1px solid var(--danger);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: #7F1D1D;
  margin: 16px 0;
}

/* ==========================================================================
   Formulario de Contacto (Turnstile v2)
   ========================================================================== */
.contact-card-wrap {
  max-width: 600px;
  margin: 16px 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 8px 10px;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  outline: none;
}

.form-group input {
  min-height: 40px;
}

.form-group textarea {
  min-height: 110px;
  resize: vertical;
}

.form-group input:focus, .form-group textarea:focus {
  border-color: var(--primary);
  background: var(--bg-card);
}

.turnstile-container {
  min-height: 65px;
}

.form-actions {
  display: flex;
}

.form-status {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  display: none;
}

.form-status.success {
  display: block;
  background: var(--success-light);
  border: 1px solid var(--success);
  color: #14532D;
}

.form-status.error {
  display: block;
  background: var(--danger-light);
  border: 1px solid var(--danger);
  color: #7F1D1D;
}

.privacy-note {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 10px;
}

/* ==========================================================================
   Error 404
   ========================================================================== */
.center-content {
  text-align: center;
  padding: 40px 20px;
}

.error-number {
  font-family: var(--font-mono);
  font-size: 72px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 12px;
}

.quick-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 24px;
  text-align: left;
}

.quick-link-card {
  display: flex;
  flex-direction: column;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
  min-height: 60px;
}

.quick-link-card strong {
  font-size: 13.5px;
  color: var(--courier-blue);
  margin-bottom: 2px;
}

.quick-link-card span {
  font-size: 12px;
  color: var(--text-muted);
}

.quick-link-card:hover {
  background: var(--bg-subtle);
  border-color: var(--border-strong);
}

/* ==========================================================================
   Pie de Página Institucional
   ========================================================================== */
.site-footer {
  background: var(--bg-card);
  border-top: 2px solid var(--border);
  margin-top: auto;
  padding: 24px 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  display: block;
}

.footer-desc {
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.footer-updated {
  font-size: 12px;
  color: var(--text-light);
  font-family: var(--font-mono);
}

.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 8px;
  display: block;
}

.footer-menu {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-menu a {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  padding: 2px 0;
}

.footer-menu a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.footer-bottom {
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-disclaimer {
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-light);
}

.footer-copy {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   Ajustes Específicos para 320px
   ========================================================================== */
@media (max-width: 480px) {
  .header-inner {
    padding: 6px 10px;
    gap: 8px;
  }
  .nav-list {
    gap: 4px;
  }
  .nav-link {
    font-size: 12px;
    padding: 5px 8px;
    min-height: 28px;
  }
  .main-container {
    padding: 10px 10px 30px;
  }
  .inputs-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .results-grid {
    grid-template-columns: 1fr;
  }
}