/* ═══════════════════════════════════════════════════════════════
   PLAYBOOK PRESENCIA DIGITAL 360 — Design System
   Think TIC S.A.S. © 2026
   ═══════════════════════════════════════════════════════════════ */

/* ── Google Fonts ───────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@600;700;800;900&display=swap');

/* ── CSS Custom Properties ──────────────────────────────────── */
:root {
  /* Brand Colors */
  --blue-primary: #4F8EF7;
  --blue-dark: #1a3a6e;
  --blue-glow: #6aa3ff;
  --orange-primary: #FF6B35;
  --orange-light: #ff8a5c;
  --orange-glow: #ff9e7a;

  /* Neutrals */
  --bg-dark: #0b0f1a;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --bg-surface: #151c2c;
  --bg-glass: rgba(17, 24, 39, 0.7);
  --text-primary: #f0f4ff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-subtle: rgba(79, 142, 247, 0.15);
  --border-glass: rgba(255, 255, 255, 0.08);

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #0b0f1a 0%, #1a2744 50%, #0b0f1a 100%);
  --gradient-blue: linear-gradient(135deg, var(--blue-primary), var(--blue-glow));
  --gradient-orange: linear-gradient(135deg, var(--orange-primary), var(--orange-light));
  --gradient-card: linear-gradient(145deg, rgba(79, 142, 247, 0.08), rgba(255, 107, 53, 0.04));

  /* Typography */
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), 0 0 0 1px var(--border-glass);
  --shadow-glow-blue: 0 0 30px rgba(79, 142, 247, 0.2);
  --shadow-glow-orange: 0 0 30px rgba(255, 107, 53, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-smooth: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --max-width: 1200px;
  --sidebar-width: 280px;
  --header-height: 64px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--blue-glow); }

/* ── Reading Progress Bar ───────────────────────────────────── */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--gradient-blue);
  z-index: 1000;
  transition: width 50ms linear;
  box-shadow: 0 0 10px rgba(79, 142, 247, 0.5);
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(11, 15, 26, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-glass);
  z-index: 900;
  display: flex;
  align-items: center;
  padding: 0 var(--space-lg);
}

.header-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
  white-space: nowrap;
}

.header-brand .brand-icon {
  width: 32px;
  height: 32px;
  background: var(--gradient-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.header-nav {
  display: none;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--gradient-orange);
  color: white;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.header-cta:hover {
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow-orange);
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1.25rem;
}

/* ── Sidebar Navigation ─────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  background: var(--bg-surface);
  border-right: 1px solid var(--border-glass);
  overflow-y: auto;
  z-index: 800;
  padding: var(--space-lg) 0;
  transform: translateX(-100%);
  transition: transform var(--transition-smooth);
}

.sidebar.is-open {
  transform: translateX(0);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 799;
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.sidebar-overlay.is-visible {
  display: block;
  opacity: 1;
}

.sidebar-nav {
  list-style: none;
}

.sidebar-nav li {
  border-left: 3px solid transparent;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.sidebar-nav li.is-active {
  border-left-color: var(--blue-primary);
  background: rgba(79, 142, 247, 0.06);
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.sidebar-nav a:hover,
.sidebar-nav li.is-active a {
  color: var(--text-primary);
}

.sidebar-nav .nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: var(--gradient-blue);
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.sidebar-nav .nav-badge.intro { background: var(--gradient-orange); }
.sidebar-nav .nav-badge.cierre { background: linear-gradient(135deg, #10b981, #34d399); }

/* ── Main Content ───────────────────────────────────────────── */
.main-content {
  margin-top: var(--header-height);
  padding: var(--space-2xl) var(--space-lg);
  min-height: calc(100vh - var(--header-height));
}

.content-container {
  max-width: 800px;
  margin: 0 auto;
}

/* ── Hero Section ───────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 30% 20%, rgba(79, 142, 247, 0.12), transparent),
    radial-gradient(ellipse 500px 350px at 70% 70%, rgba(255, 107, 53, 0.08), transparent);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(79, 142, 247, 0.1);
  border: 1px solid rgba(79, 142, 247, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--blue-glow);
  margin-bottom: var(--space-xl);
  animation: fadeInDown 0.6s ease;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--blue-glow) 50%, var(--orange-light) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
  width: 100%;
  max-width: var(--max-width);
  margin-top: var(--space-3xl);
  animation: fadeInUp 0.8s ease 0.8s both;
}

/* ── Module Card (Home Grid) ────────────────────────────────── */
.module-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
  text-decoration: none;
  color: var(--text-primary);
}

.module-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-blue);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.module-card .card-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--gradient-blue);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  color: white;
  flex-shrink: 0;
}

.module-card .card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: var(--space-xs);
}

.module-card .card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--gradient-blue);
  color: white;
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow-blue);
  color: white;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--blue-primary);
  color: var(--blue-primary);
}

.btn-secondary:hover {
  background: rgba(79, 142, 247, 0.1);
  color: var(--blue-glow);
}

.btn-whatsapp {
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: white;
}

.btn-whatsapp:hover {
  box-shadow: 0 0 20px rgba(37, 211, 102, 0.3);
  color: white;
}

/* ── Module Page ────────────────────────────────────────────── */
.module-header {
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border-glass);
}

.module-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: rgba(79, 142, 247, 0.12);
  border: 1px solid rgba(79, 142, 247, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--blue-glow);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.module-badge.intro-badge { 
  background: rgba(255, 107, 53, 0.12); 
  border-color: rgba(255, 107, 53, 0.2); 
  color: var(--orange-light); 
}

.module-badge.cierre-badge { 
  background: rgba(16, 185, 129, 0.12); 
  border-color: rgba(16, 185, 129, 0.2); 
  color: #34d399; 
}

.module-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.module-header .module-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

/* ── Content Typography ─────────────────────────────────────── */
.module-content h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin: var(--space-3xl) 0 var(--space-lg);
  color: var(--text-primary);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--border-subtle);
}

.module-content h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  margin: var(--space-2xl) 0 var(--space-md);
  color: var(--blue-glow);
}

.module-content h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  margin: var(--space-xl) 0 var(--space-md);
  color: var(--text-primary);
}

.module-content p {
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
  font-size: 1.02rem;
}

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

.module-content em {
  color: var(--text-secondary);
  font-style: italic;
}

.module-content ul, .module-content ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
  color: var(--text-secondary);
}

.module-content li {
  margin-bottom: var(--space-sm);
  padding-left: var(--space-xs);
}

.module-content li::marker {
  color: var(--blue-primary);
}

/* ── AEO Summary Block ──────────────────────────────────────── */
.aeo-summary {
  position: relative;
  padding: var(--space-xl);
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-2xl);
}

.aeo-summary::before {
  content: '🤖 Resumen AEO';
  display: block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-glow);
  margin-bottom: var(--space-md);
}

.aeo-summary p {
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 0;
}

/* ── Case Study Block ───────────────────────────────────────── */
.case-study {
  position: relative;
  padding: var(--space-xl);
  background: var(--bg-card);
  border-left: 4px solid var(--orange-primary);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin: var(--space-2xl) 0;
  box-shadow: var(--shadow-card);
}

.case-study::before {
  content: '📖 Historia Real';
  display: block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange-light);
  margin-bottom: var(--space-md);
}

.case-study p {
  color: var(--text-secondary);
  font-size: 0.98rem;
}

/* ── Key Points / Pillar Block ──────────────────────────────── */
.pillar-block {
  margin: var(--space-2xl) 0;
}

.pillar-item {
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  transition: border-color var(--transition-smooth);
}

.pillar-item:hover {
  border-color: var(--border-subtle);
}

.pillar-item .pillar-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--gradient-blue);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.85rem;
  color: white;
  margin-bottom: var(--space-sm);
}

.pillar-item h4 {
  margin-top: var(--space-sm) !important;
  margin-bottom: var(--space-sm) !important;
}

/* ── FAQ Accordion ──────────────────────────────────────────── */
.faq-section {
  margin: var(--space-2xl) 0;
}

.faq-item {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item:hover, .faq-item.is-open {
  border-color: var(--border-subtle);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
  padding: var(--space-lg);
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: rgba(79, 142, 247, 0.04);
}

.faq-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: rgba(79, 142, 247, 0.1);
  color: var(--blue-primary);
  font-size: 1rem;
  flex-shrink: 0;
  transition: transform var(--transition-smooth);
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth);
}

.faq-answer-inner {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ── Action Plan Block ──────────────────────────────────────── */
.action-plan {
  padding: var(--space-xl);
  background: linear-gradient(145deg, rgba(16, 185, 129, 0.08), rgba(79, 142, 247, 0.04));
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-lg);
  margin: var(--space-2xl) 0;
}

.action-plan::before {
  content: '🚀 Plan de Acción';
  display: block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #34d399;
  margin-bottom: var(--space-md);
}

.action-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  cursor: pointer;
}

.action-check {
  width: 22px;
  height: 22px;
  border: 2px solid var(--text-muted);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  font-size: 0.7rem;
  color: transparent;
}

.action-item.is-done .action-check {
  background: linear-gradient(135deg, #10b981, #34d399);
  border-color: #10b981;
  color: white;
}

.action-item.is-done .action-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

.action-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Navigation Between Modules ─────────────────────────────── */
.module-nav {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-4xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-glass);
}

.nav-link {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-smooth), transform var(--transition-fast);
  text-decoration: none;
}

.nav-link:hover {
  border-color: var(--border-subtle);
  transform: translateY(-2px);
}

.nav-link .nav-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
}

.nav-link .nav-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-link.nav-next { text-align: right; }

/* ── WhatsApp Float Button ──────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 950;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 20px;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: white;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  animation: pulse-wa 2s infinite;
}

.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
  color: white;
}

.whatsapp-float .wa-icon {
  width: 24px;
  height: 24px;
}

.whatsapp-float .wa-text {
  display: none;
}

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6); }
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  border-top: 1px solid var(--border-glass);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer a {
  color: var(--blue-primary);
}

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (min-width: 768px) {
  .whatsapp-float .wa-text { display: inline; }

  .hero-modules-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .mobile-menu-btn { display: none; }

  .sidebar {
    transform: translateX(0);
  }

  .main-content {
    margin-left: var(--sidebar-width);
  }

  .header-nav {
    display: flex;
    gap: var(--space-md);
  }

  .header-nav a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
  }

  .header-nav a:hover {
    color: var(--text-primary);
  }

  .hero-modules-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .hero-modules-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ── Print ──────────────────────────────────────────────────── */
@media print {
  .site-header, .sidebar, .whatsapp-float, .reading-progress { display: none !important; }
  .main-content { margin-left: 0 !important; }
  body { background: white; color: #111; }
}