/* ==========================================================================
   ComprarBitcoin.net - Sistema de Diseño Institucional Financiero (Core AI)
   Enfocado a inversores y ahorradores tradicionales (35-55 años)
   Cero jerga "crypto-bro", máxima legibilidad, contraste AAA, estética bancaria/patrimonial
   ========================================================================== */

:root {
  /* Paleta Base Institucional */
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-surface-raised: #f5f5f5;
  --color-surface-hover: #ebebeb;
  --color-border: #d4d4d4;
  --color-border-subtle: #e5e5e5;
  --color-highlight-bg: #fffbeb;

  /* Azules Financieros / Nave */
  --color-brand-primary: #171717;       /* Slate 900 profundo */
  --color-brand-navy: #262626;          /* Slate 800 */
  --color-brand-accent: #f7931a; /* Bitcoin Orange */        /* Naranja Bitcoin */
  --color-brand-accent-hover: #e07f0e;  /* Naranja Bitcoin Hover */
  --color-brand-soft: #fff7ed; /* Soft Orange */          /* Naranja suave de fondo */

  /* Tipografía y Textos */
  --color-text-main: #171717;           /* Contraste máximo */
  --color-text-muted: #404040;          /* Gris oscuro legible */
  --color-text-light: #525252;          /* Secundario suave */

  /* Alertas de Seguridad, Riesgo y Cumplimiento */
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;
  --color-warning-text: #92400e;

  --color-danger-bg: #fef2f2;
  --color-danger-border: #fecaca;
  --color-danger-text: #991b1b;

  --color-success-bg: #f0fdf4;
  --color-success-border: #bbf7d0;
  --color-success-text: #166534;

  --color-info-bg: #eff6ff;
  --color-info-border: #bfdbfe;
  --color-info-text: #1e40af;

  /* Espaciado Modular Core AI */
  --esp-1: 4px;
  --esp-2: 8px;
  --esp-3: 16px;
  --esp-4: 24px;
  --esp-5: 32px;
  --esp-6: 48px;
  --esp-7: 64px;

  /* Bordes y Sombras Sutiles */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);

  /* Layout */
  --container-max: 1140px;
  --container-text: 760px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Tema Oscuro (Dark Theme) */
html.dark-theme {
  --color-bg: #111111;
  --color-surface: #1a1a1a;
  --color-surface-raised: #2a2a2a;
  --color-surface-hover: #333333;
  --color-border: #333333;
  --color-border-subtle: #222222;
  --color-highlight-bg: rgba(247, 147, 26, 0.05);

  --color-brand-primary: #f8fafc;
  --color-brand-navy: #f5f5f5;
  --color-brand-accent: #f7931a;
  --color-brand-accent-hover: #fbbf24;
  --color-brand-soft: rgba(247, 147, 26, 0.15);

  --color-text-main: #f8fafc;
  --color-text-muted: #a3a3a3;
  --color-text-light: #737373;
}

/* Botón Toggle Tema */
.theme-toggle {
  background: none;
  border: none;
  color: var(--color-text-main);
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color 0.2s, color 0.2s;
  margin-left: 10px;
  flex-shrink: 0; /* Evita que el flexbox lo aplaste */
}
.theme-toggle:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-brand-accent);
}
.theme-toggle svg {
  width: 20px;
  height: 20px;
}
.dark-icon { display: none; }
html.dark-theme .dark-icon { display: block; }
html.dark-theme .light-icon { display: none; }

/* Reset y Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.65;
  font-size: 1.0625rem; /* 17px para lectura cómoda de 35-55 años */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-brand-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-brand-accent-hover);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--esp-4);
  padding-right: var(--esp-4);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-text);
  margin-left: auto;
  margin-right: auto;
}

/* ==========================================================================
   Cabecera y Barra de Transparencia de Afiliados
   ========================================================================== */

.affiliate-notice-bar {
  background-color: var(--color-surface-raised);
  border-bottom: 1px solid var(--color-border-subtle);
  padding: var(--esp-2) 0;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.affiliate-notice-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--esp-2);
  flex-wrap: wrap;
}

.affiliate-notice-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.affiliate-notice-badge svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-text-light);
}

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  max-width: 1400px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--esp-2);
  text-decoration: none;
  color: var(--color-brand-primary);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-logo-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #f7931a 0%, #d97706 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.125rem;
  border: 1px solid #334155;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-brand-primary);
  cursor: pointer;
  padding: 8px;
  align-items: center;
  justify-content: center;
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
}


/* Dropdown Nav */
.nav-dropdown {
  position: relative;
  display: inline-block;
}
.nav-dropdown .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-surface);
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  z-index: 200;
  padding: 8px 0;
}
.nav-dropdown:hover .dropdown-menu {
  display: flex;
  flex-direction: column;
}
.dropdown-item {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background-color 0.2s;
}
.dropdown-item:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-brand-primary);
}
.dropdown-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-brand-accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  margin-left: 8px;
  flex-shrink: 0;
  white-space: nowrap;
}

.lang-selector a {
  text-decoration: none;
  color: var(--color-text-light);
}

.lang-selector a.active {
  color: var(--color-brand-accent);
  font-weight: bold;
}

.lang-selector .separator {
  color: var(--color-border);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  padding: var(--esp-1) 8px;
  border-bottom: 2px solid transparent;
  border-radius: 6px;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.main-nav-icon {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.8;
}

.nav-link.active {
  background: var(--color-surface-hover);
  color: var(--color-brand-primary);
  border-bottom-color: transparent;
  font-weight: 600;
}
.nav-link.active .main-nav-icon {
  opacity: 1;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-brand-primary);
  border-bottom-color: var(--color-brand-accent);
}

.btn-header-cta {
  background-color: var(--color-brand-primary);
  color: var(--color-bg); /* En dark mode, bg es slate-900 (oscuro), así contrasta bien */
  padding: 8px 16px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid var(--color-brand-primary);
  transition: background-color 0.15s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-header-cta:hover {
  background-color: var(--color-brand-navy);
  color: var(--color-bg);
}

/* ==========================================================================
   Hero Section - Portada
   ========================================================================== */

.hero-section {
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
  padding: var(--esp-6) 0 var(--esp-5);
  border-bottom: 1px solid var(--color-border-subtle);
}

.hero-trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-brand-soft);
  color: var(--color-brand-accent-hover);
  border: 1px solid #bae6fd;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: var(--esp-3);
}

.hero-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--color-brand-primary);
  margin-bottom: var(--esp-3);
}

.hero-subtitle {
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: var(--esp-4);
  max-width: 720px;
}

.hero-guarantees {
  display: flex;
  flex-wrap: wrap;
  gap: var(--esp-4);
  padding: var(--esp-3) 0;
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
  margin-bottom: var(--esp-5);
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.guarantee-item svg {
  width: 18px;
  height: 18px;
  color: #059669;
  flex-shrink: 0;
}

/* ==========================================================================
   PASO 2: TABLA DE AFILIACIÓN Y CARDS MÓVILES (CRO OPTIMIZADO)
   ========================================================================== */

.comparison-wrapper {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--esp-4);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--esp-6);
}

.comparison-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--esp-3);
  margin-bottom: var(--esp-4);
  padding-bottom: var(--esp-3);
  border-bottom: 1px solid var(--color-border-subtle);
  flex-wrap: wrap;
}

.comparison-header h2 {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-brand-primary);
}

.comparison-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-audit {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
}

/* Tabs de Filtro Rápido */
.affiliate-tabs {
  display: flex;
  gap: var(--esp-2);
  margin-bottom: var(--esp-4);
  overflow-x: auto;
  padding-bottom: 4px;
}

.tab-btn {
  background-color: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.tab-btn:hover,
.tab-btn.active {
  background-color: var(--color-brand-primary);
  color: var(--color-bg);
  border-color: var(--color-brand-primary);
}

/* Tabla Desktop */
.desktop-table-container {
  display: block;
  overflow-x: auto;
}

.affiliate-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
}

.affiliate-table th {
  background-color: var(--color-surface-raised);
  padding: 12px 14px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  font-weight: 700;
  border-bottom: 1px solid var(--color-border);
}

.affiliate-table td {
  padding: 16px 14px;
  border-bottom: 1px solid var(--color-border-subtle);
  font-size: 0.9375rem;
  vertical-align: middle;
}

.affiliate-table tr:hover td {
  background-color: var(--color-surface-hover);
}

.affiliate-table tr.highlight-winner td {
  background-color: var(--color-highlight-bg);
}

.exchange-identity {
  display: flex;
  align-items: center;
  gap: 12px;
}

.exchange-rank {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--color-text-light);
  width: 20px;
}

.exchange-logo-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: #0f172a;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.exchange-name-block strong {
  display: block;
  color: var(--color-brand-primary);
  font-size: 1rem;
}

.badge-tag {
  display: inline-block;
  font-size: 0.6875rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-transform: uppercase;
  margin-top: 2px;
}

.badge-tag-winner {
  background-color: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.badge-tag-security {
  background-color: #eff6ff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

.badge-tag-selfcustody {
  background-color: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.rating-stars {
  color: #f7931a;
  font-size: 0.8125rem;
  letter-spacing: 1px;
}

.btn-cta-affiliate {
  display: inline-block;
  background-color: var(--color-brand-primary);
  color: var(--color-bg);
  padding: 9px 18px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.875rem;
  text-align: center;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-cta-affiliate:hover {
  background-color: var(--color-brand-accent-hover);
  color: var(--color-bg);
  transform: translateY(-1px);
}

.btn-cta-winner {
  background-color: #0284c7;
  color: #ffffff;
}

.btn-cta-winner:hover {
  background-color: #0369a1;
  color: #ffffff;
}

/* ==========================================================================
   Alertas y Cajas de Información
   ========================================================================== */

.alert-box {
  padding: var(--esp-3) var(--esp-4);
  border-radius: var(--radius-md);
  margin: var(--esp-4) 0;
  background-color: var(--color-surface-raised);
  border-left: 4px solid var(--color-text-light);
  color: var(--color-text-main);
}

.alert-warning {
  background-color: var(--color-warning-bg);
  border-left-color: var(--color-warning-text);
  color: var(--color-warning-text);
}

.alert-warning strong {
  color: var(--color-warning-text);
}

/* Tarjetas Móviles (Se activan en < 768px) */
.mobile-cards-container {
  display: none;
}

.mobile-exchange-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--esp-4);
  margin-bottom: var(--esp-3);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.mobile-exchange-card.card-winner {
  border-color: #38bdf8;
  box-shadow: 0 0 0 1px #38bdf8, var(--shadow-md);
}

.mobile-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--esp-3);
}

.mobile-card-identity {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-metrics-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
  margin: var(--esp-3) 0;
  padding: var(--esp-2) 0;
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.mobile-metric-item {
  font-size: 0.8125rem;
}

.mobile-metric-label {
  display: block;
  font-size: 0.6875rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  font-weight: 600;
}

.mobile-metric-value {
  font-weight: 700;
  color: var(--color-brand-primary);
}

.mobile-bullet-points {
  list-style: none;
  margin-bottom: var(--esp-3);
  font-size: 0.8125rem;
}

.mobile-bullet-points li {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.mobile-bullet-points svg {
  width: 14px;
  height: 14px;
  color: #059669;
  flex-shrink: 0;
}

.btn-mobile-full {
  display: block;
  width: 100%;
  padding: 12px;
  font-size: 0.9375rem;
}

/* ==========================================================================
   Banner de Lead Magnet (Guía Anti-Estafas)
   ========================================================================== */

.lead-magnet-section {
  margin-top: var(--esp-6);
  margin-bottom: var(--esp-6);
}

.lead-magnet-card {
  background: linear-gradient(135deg, #171717 0%, #262626 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: var(--esp-5);
  border: 1px solid #334155;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--esp-5);
  align-items: center;
}

.lead-magnet-badge {
  display: inline-block;
  background-color: rgba(245, 158, 11, 0.15);
  color: #f7931a;
  border: 1px solid rgba(245, 158, 11, 0.3);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--esp-2);
}

.lead-magnet-title {
  font-size: 1.625rem;
  font-weight: 700;
  line-height: 1.25;
  color: #ffffff;
  margin-bottom: var(--esp-2);
}

.lead-magnet-desc {
  color: #94a3b8;
  font-size: 0.9375rem;
  margin-bottom: var(--esp-4);
  line-height: 1.55;
}

.lead-magnet-list {
  list-style: none;
  margin-bottom: var(--esp-4);
}

.lead-magnet-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #e2e8f0;
  font-size: 0.875rem;
  margin-bottom: 6px;
}

.lead-magnet-list svg {
  color: #38bdf8;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.lead-form-box {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--esp-4);
}

.lead-form-box h3 {
  color: #ffffff;
  font-size: 1.125rem;
  margin-bottom: var(--esp-2);
  font-weight: 600;
}

.lead-form-box p {
  color: #94a3b8;
  font-size: 0.8125rem;
  margin-bottom: var(--esp-3);
}

.form-group {
  margin-bottom: var(--esp-3);
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid #475569;
  background-color: #0f172a;
  color: #ffffff;
  font-size: 0.9375rem;
}

.form-input:focus {
  outline: none;
  border-color: #38bdf8;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.btn-form-submit {
  width: 100%;
  background-color: #0284c7;
  color: #ffffff;
  padding: 11px;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

.btn-form-submit:hover {
  background-color: #0369a1;
}

.form-privacy-note {
  font-size: 0.6875rem;
  color: #64748b;
  margin-top: var(--esp-2);
  text-align: center;
}

/* ==========================================================================
   Estructura de Silos / Guías Temáticas
   ========================================================================== */

.silos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--esp-4);
  margin: var(--esp-5) 0 var(--esp-7);
}

.silo-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--esp-4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.silo-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.silo-tag {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-brand-accent);
  letter-spacing: 0.05em;
  margin-bottom: var(--esp-1);
}

.silo-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--esp-2);
  color: var(--color-brand-primary);
}

.silo-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--esp-3);
  line-height: 1.5;
}

.silo-links {
  list-style: none;
}

.silo-links li {
  margin-bottom: 6px;
  font-size: 0.875rem;
}

.silo-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--color-brand-primary);
  font-weight: 500;
  text-decoration: none;
}

.silo-links a:hover {
  color: var(--color-brand-accent);
  text-decoration: underline;
}

/* ==========================================================================
   PASOS 3, 4 Y 5: COMPONENTES EDITORIALES, ARTÍCULOS Y CRO
   ========================================================================== */

.article-header {
  padding: var(--esp-5) 0 var(--esp-4);
  border-bottom: 1px solid var(--color-border-subtle);
  margin-bottom: var(--esp-5);
}

.breadcrumbs {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: var(--esp-3);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--color-brand-accent);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--esp-3);
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: var(--esp-2);
}

.editorial-content {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-text-main);
}

.editorial-content h2 {
  font-size: 1.625rem;
  font-weight: 800;
  color: var(--color-brand-primary);
  margin-top: var(--esp-6);
  margin-bottom: var(--esp-3);
  line-height: 1.25;
}

.editorial-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-brand-navy);
  margin-top: var(--esp-5);
  margin-bottom: var(--esp-2);
}

.editorial-content p {
  margin-bottom: var(--esp-4);
  color: var(--color-text-muted);
}

.editorial-content ul,
.editorial-content ol {
  margin-bottom: var(--esp-4);
  padding-left: var(--esp-4);
  color: var(--color-text-muted);
}

.editorial-content li {
  margin-bottom: var(--esp-2);
}

/* Cajas de Aviso / Callouts */
.callout-box {
  border-radius: var(--radius-md);
  padding: var(--esp-4);
  margin: var(--esp-5) 0;
  border-left: 4px solid;
}

.callout-warning {
  background-color: var(--color-warning-bg);
  border-color: #f7931a;
  color: var(--color-warning-text);
}

.callout-danger {
  background-color: var(--color-danger-bg);
  border-color: #ef4444;
  color: var(--color-danger-text);
}

.callout-info {
  background-color: var(--color-info-bg);
  border-color: #3b82f6;
  color: var(--color-info-text);
}

/* Venta Cruzada Inteligente (Cross-selling) */
.cross-sell-box {
  background-color: #f8fafc;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--esp-4);
  margin: var(--esp-5) 0;
  display: flex;
  gap: var(--esp-4);
  align-items: flex-start;
}

.cross-sell-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-brand-primary);
}

.cross-sell-body h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-brand-primary);
  margin-bottom: 4px;
}

.cross-sell-body p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.cross-sell-link {
  font-size: 0.875rem;
  font-weight: 700;
}

/* Lista de Pros y Contras */
.pro-con-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--esp-4);
  margin: var(--esp-4) 0 var(--esp-5);
}

.pro-box {
  background-color: var(--color-success-bg);
  color: var(--color-success-text);
  border: 1px solid var(--color-success-border);
  border-radius: var(--radius-md);
  padding: var(--esp-3);
}

.pro-box h4 {
  color: var(--color-success-text);
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.con-box {
  background-color: var(--color-danger-bg);
  color: var(--color-danger-text);
  border: 1px solid var(--color-danger-border);
  border-radius: var(--radius-md);
  padding: var(--esp-3);
}

.con-box h4 {
  color: var(--color-danger-text);
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 8px;
}

/* FAQ Acordeón */
.faq-list {
  margin-top: var(--esp-4);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--esp-3) 0;
}

.faq-question {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-brand-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-answer {
  margin-top: var(--esp-2);
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Disclaimers Legales y Financieros */
.disclaimer-box {
  background-color: var(--color-warning-bg);
  color: var(--color-warning-text);
  border: 1px solid var(--color-warning-border);
  border-radius: var(--radius-md);
  padding: var(--esp-3) var(--esp-4);
  margin: var(--esp-5) 0;
}

.disclaimer-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-warning-text);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.disclaimer-text {
  font-size: 0.8125rem;
  color: var(--color-warning-text);
  line-height: 1.5;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: #0a0a0a;
  color: #94a3b8;
  padding: var(--esp-6) 0 var(--esp-4);
  font-size: 0.875rem;
  border-top: 1px solid #262626;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--esp-5);
  margin-bottom: var(--esp-6);
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--esp-3);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col a {
  color: #94a3b8;
  text-decoration: none;
}

.footer-col a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #262626;
  padding-top: var(--esp-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--esp-3);
  font-size: 0.75rem;
  color: #64748b;
}

.footer-cookie-trigger {
  background: none;
  border: none;
  color: #94a3b8;
  text-decoration: underline;
  cursor: pointer;
  font-size: 0.75rem;
  padding: 0;
}

.footer-cookie-trigger:hover {
  color: #ffffff;
}

/* ==========================================================================
   Banner de Cookies Granular (RGPD / LSSI)
   ========================================================================== */

.cookie-consent-modal {
  position: fixed;
  bottom: 20px;
  right: 20px;
  max-width: 440px;
  width: calc(100% - 40px);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.2), 0 8px 10px -6px rgba(15, 23, 42, 0.1);
  padding: var(--esp-4);
  z-index: 9999;
  display: none;
  animation: slideInUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.cookie-consent-modal.active {
  display: block;
}

@keyframes slideInUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.cookie-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--esp-2);
}

.cookie-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-brand-primary);
}

.cookie-description {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: var(--esp-3);
}

.cookie-options-box {
  background-color: var(--color-surface-raised);
  border-radius: var(--radius-md);
  padding: var(--esp-2) var(--esp-3);
  margin-bottom: var(--esp-3);
  border: 1px solid var(--color-border-subtle);
}

.cookie-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--color-border-subtle);
}

.cookie-option:last-child {
  border-bottom: none;
}

.cookie-option-label {
  display: flex;
  flex-direction: column;
}

.cookie-option-name {
  font-weight: 600;
  color: var(--color-brand-primary);
}

.cookie-option-desc {
  font-size: 0.6875rem;
  color: var(--color-text-light);
}

.cookie-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cookie-actions-primary {
  display: flex;
  gap: 6px;
}

.btn-cookie {
  padding: 7px 12px;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}

.btn-cookie-accept-all {
  background-color: var(--color-brand-primary);
  color: var(--color-bg);
  flex: 1;
}

.btn-cookie-accept-all:hover {
  background-color: var(--color-brand-navy);
}

.btn-cookie-reject {
  background-color: var(--color-surface-raised);
  color: var(--color-text-main);
  border-color: var(--color-border);
  flex: 1;
}

.btn-cookie-reject:hover {
  background-color: var(--color-surface-hover);
}

.btn-cookie-save {
  background-color: transparent;
  color: var(--color-brand-accent);
  border-color: var(--color-brand-accent);
  width: 100%;
}

.btn-cookie-save:hover {
  background-color: var(--color-brand-soft);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (min-width: 861px) and (max-width: 1350px) {
  .hide-on-tablet {
    display: none !important;
  }
}

@media (max-width: 860px) {
  .lead-magnet-card {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  
/* Dropdown Nav */
.nav-dropdown {
  position: relative;
  display: inline-block;
}
.nav-dropdown .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-surface);
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  z-index: 200;
  padding: 8px 0;
}
.nav-dropdown:hover .dropdown-menu {
  display: flex;
  flex-direction: column;
}
.dropdown-item {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background-color 0.2s;
}
.dropdown-item:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-brand-primary);
}
.dropdown-item svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-brand-accent);
}

.site-nav {
    display: none; /* Oculto por defecto en móvil */
    flex-direction: column;
    position: absolute;
    top: 72px; /* Debajo del header */
    left: 0;
    width: 100%;
    background-color: var(--color-surface);
    padding: var(--esp-4);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--color-border);
    align-items: flex-start;
    gap: var(--esp-3);
  }

  .site-nav.open {
    display: flex;
  }
  .nav-dropdown {
    width: 100%;
  }
  .nav-dropdown .dropdown-menu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 20px;
    background: transparent;
    display: none;
  }
  .nav-dropdown.open .dropdown-menu, .nav-dropdown:active .dropdown-menu, .nav-dropdown:focus-within .dropdown-menu {
    display: flex;
  }
  .nav-dropdown > button {
    width: 100%;
    justify-content: flex-start;
  }


  .nav-link {
    width: 100%;
    border-bottom: 1px solid var(--color-border-subtle);
    padding: 10px 0;
  }

  .btn-header-cta {
    width: 100%;
    text-align: center;
    margin-top: var(--esp-2);
  }

  .theme-toggle {
    margin-left: 0;
    margin-top: var(--esp-2);
  }

  .lang-selector {
    margin-left: 0;
    margin-top: var(--esp-2);
  }

  .desktop-table-container {
    display: none;
  }

  .mobile-cards-container {
    display: block;
  }

  .pro-con-grid {
    grid-template-columns: 1fr;
  }

  .cross-sell-box {
    flex-direction: column;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cookie-consent-modal {
    bottom: 0;
    right: 0;
    width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
}

/* ==========================================================================
   Floating Action Buttons (Widgets)
   ========================================================================== */
.floating-widgets {
  position: fixed;
  bottom: var(--esp-4);
  left: var(--esp-4);
  z-index: 9998;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--esp-2);
}

.fab-container {
  display: flex;
  gap: 12px;
}

.fab-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  background-color: var(--color-surface);
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
}

.fab-btn:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.fab-warning {
  background-color: var(--color-warning-bg);
  border-color: var(--color-warning-border);
}

.fab-cookie {
  background-color: var(--color-surface-raised);
}

.floating-modal {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--esp-4);
  width: 320px;
  max-width: calc(100vw - 32px);
  margin-bottom: var(--esp-2);
  color: var(--color-text-main);
  animation: slideUp 0.3s ease-out forwards;
}

.floating-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--esp-2);
  font-size: 0.9375rem;
}

.floating-modal-body p {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  margin-bottom: var(--esp-3);
}

.close-modal-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0 4px;
}
.close-modal-btn:hover { color: var(--color-text-main); }

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Error Validation Animations */
@keyframes shakeError {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  50% { transform: translateX(5px); }
  75% { transform: translateX(-5px); }
}
.input-error {
  border-color: #ef4444 !important;
  background-color: rgba(239, 68, 68, 0.05) !important;
  animation: shakeError 0.4s ease-in-out;
}