/* ==========================================================================
   Think Home & GeoVigilantes - Official Master Typography (Opción 3 Elegida)
   Palette: Cartografía Táctica & Diseño Suizo
   1. Bold Sans: 'Space Grotesk' (700 / 800) - Títulos de Impacto & Precisión
   2. Editorial Serif: 'Fraunces' (600 / 700 / Italic) - Confianza, Calidez y Autoridad
   3. Tall Thin: 'Teko' (400 / 600) - Metadatos, Kickers y Telemetría
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,600;0,9..144,700;0,9..144,800;1,9..144,400;1,9..144,600;1,9..144,700&family=Space+Grotesk:wght@500;600;700&family=Teko:wght@400;500;600;700&display=swap');

:root {
  /* Opción 3 Oficial Elegida por el Usuario */
  --font-sans: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-serif: 'Fraunces', Georgia, serif;
  --font-tall: 'Teko', sans-serif;
  
  --color-bg-base: #FFFFFF;
  --color-bg-subtle: #F8FAFC;
  --color-card-border: #E2E8F0;
  
  --color-navy: #0F172A;
  --color-navy-light: #1E293B;
  --color-text-main: #1E293B;
  --color-text-muted: #475569;
  
  --color-cyan: #0284C7;
  --color-emerald: #059669;
  --color-amber: #D97706;
}

html {
  font-size: 18px; /* Base 18px para máxima legibilidad en adultos de 35+ */
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
}

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

body {
  background-color: var(--color-bg-subtle);
  color: var(--color-text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
  position: relative;
}

/* ==========================================================================
   Typography Hierarchy Helper Classes
   ========================================================================== */

.font-bold-sans {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-navy);
}

.font-serif-title {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-navy);
}

.font-serif-italic {
  font-family: var(--font-serif);
  font-style: italic;
}

.font-tall-thin {
  font-family: var(--font-tall);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 1.1em;
}

.font-tall-bold {
  font-family: var(--font-tall);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 1.15em;
}

/* ==========================================================================
   Light Map & Cartographic Backgrounds
   ========================================================================== */

.bg-light-map {
  background-color: #F8FAFC;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(2, 132, 199, 0.06) 0%, transparent 60%),
    radial-gradient(circle at 100% 100%, rgba(5, 150, 105, 0.04) 0%, transparent 50%),
    linear-gradient(#E2E8F0 1px, transparent 1px),
    linear-gradient(90deg, #E2E8F0 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
}

/* UI Panels */
.light-panel {
  background: #FFFFFF;
  border: 1px solid var(--color-card-border);
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05);
}

.light-panel-hover {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.light-panel-hover:hover {
  transform: translateY(-3px);
  border-color: #0284C7;
  box-shadow: 0 20px 35px -10px rgba(2, 132, 199, 0.15);
}

.gradient-text-security {
  background: linear-gradient(135deg, #0284C7 0%, #059669 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Video Facade */
.video-facade {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: #0F172A;
  border-radius: 1.25rem;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid #CBD5E1;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.1);
}

.video-facade img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
  transition: opacity 0.3s ease;
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  background: #0284C7;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 25px rgba(2, 132, 199, 0.5);
}

.video-play-btn::after {
  content: '';
  border-style: solid;
  border-width: 12px 0 12px 20px;
  border-color: transparent transparent transparent #FFFFFF;
  margin-left: 4px;
}

/* Floating WhatsApp Button */
.floating-whatsapp {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.4rem;
  background: linear-gradient(135deg, #059669, #047857);
  color: #FFFFFF;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 15px 30px rgba(5, 150, 105, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

article p {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.85;
  color: #334155;
  margin-bottom: 1.4rem;
}

article h2 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 700;
  color: #0F172A;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

article h3 {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 700;
  color: #0F172A;
  margin-top: 1.8rem;
  margin-bottom: 0.75rem;
}

article code {
  font-family: monospace;
  background: #F1F5F9;
  color: #0369A1;
  padding: 0.2rem 0.5rem;
  border-radius: 0.375rem;
  border: 1px solid #CBD5E1;
  font-size: 0.9em;
  font-weight: 600;
}