/* ==========================================================================
   Tipografias servidas desde el propio dominio.
   Antes venian de fonts.googleapis.com / fonts.gstatic.com, lo que enviaba la
   IP de cada visitante a Google sin consentimiento previo. Para un sitio que
   es, precisamente, la web del desarrollador que Google Play exige y que lleva
   su propia politica de privacidad, esa dependencia sobraba.
   Ficheros de @fontsource (los mismos de Google Fonts, licencia SIL OFL 1.1).
   ========================================================================== */
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/inter-latin-400-normal.woff2") format("woff2");}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url("../fonts/inter-latin-500-normal.woff2") format("woff2");}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/inter-latin-600-normal.woff2") format("woff2");}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;src:url("../fonts/inter-latin-700-normal.woff2") format("woff2");}
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/plus-jakarta-sans-latin-600-normal.woff2") format("woff2");}
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:700;font-display:swap;src:url("../fonts/plus-jakarta-sans-latin-700-normal.woff2") format("woff2");}
@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:800;font-display:swap;src:url("../fonts/plus-jakarta-sans-latin-800-normal.woff2") format("woff2");}

/* ==========================================================================
   Digital Action Software Services LLC - Global Stylesheet
   Shared across all pages: index, servicios, quizs-and-games,
   imperium-trivia, ftt-quiz, nosotros, contacto, privacidad, aviso-legal, terminos
   ========================================================================== */

:root {
  /* ===== MARCA OFICIAL — Isotipo "A Embebida en D", Variante 42 ===== */
  --marca-navy:    #0F172A;  /* Navy Grafito  · fuste de la D */
  --marca-cobalto: #2563EB;  /* Azul Cobalto  · arco exterior de la D */
  --marca-titanio: #64748B;  /* Gris Titanio  · travesano de la A */

  /* Color Palette - Premium Tech Slate & Vibrant Accents */
  --bg-main: var(--marca-navy);
  --bg-surface: #111a2e;
  --bg-surface-alt: #17233d;
  --bg-surface-elevated: #1e2c4f;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(59, 130, 246, 0.4);
  --border-highlight: rgba(96, 165, 250, 0.2);

  --primary: var(--marca-cobalto);
  --primary-hover: #1d4ed8;
  --primary-light: rgba(37, 99, 235, 0.15);
  --primary-gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  
  --secondary: #0ea5e9;
  /* Fuera el dorado: venia de Imperium Trivia, no de la marca. Decision de
     Alvaro, 14-9-2026. Los nombres de token se conservan para no tocar 40
     sitios; lo que cambia es el color, que ahora es el Cobalto de la casa. */
  --accent-gold: #60a5fa;
  --accent-gold-bg: rgba(37, 99, 235, 0.14);
  --accent-emerald: #10b981;
  --accent-emerald-bg: rgba(16, 185, 129, 0.12);
  --accent-purple: #8b5cf6;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  /* AUDITORIA 14-9-2026. El Gris Titanio de marca (#64748B) da 3,28-4,13:1
     sobre los fondos de este sitio y WCAG AA pide 4,5:1 en texto pequeno: eran
     62 elementos en las diez paginas. Se aclara SOLO el token de texto; la
     marca --marca-titanio no se toca, porque es el travesano de la A del logo. */
  --text-dim: #8494AA;   /* 5,06:1 en el peor fondo */
  --text-inverse: #0b1120;

  /* Typography */
  --font-display: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Spacing & Layout */
  --container-max: 1200px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px rgba(37, 99, 235, 0.25);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-main);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-main);
  color: var(--text-main);
}

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

a {
  color: var(--secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #7dd3fc;
}

p {
  margin-bottom: 1rem;
  color: var(--text-muted);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4vw + 1rem, 3.25rem); }
h2 { font-size: clamp(1.5rem, 2.5vw + 0.5rem, 2.25rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.15rem; }
.process-title { font-size: 1.15rem; }

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-muted);
}

li {
  margin-bottom: 0.35rem;
}

/* --------------------------------------------------------------------------
   Containers & Grid System
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.container-narrow {
  max-width: 860px;
}

.section {
  padding: 4.5rem 0;
  position: relative;
}

.section-sm {
  padding: 2.5rem 0;
}

.section-alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(11, 17, 32, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-normal);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-main);
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: #ffffff;
  border-radius: var(--radius-sm);
  padding: 3px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.brand-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.35rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: #ffffff;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--primary);
  border-radius: var(--radius-full);
}

.nav-cta {
  display: none;
}

.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(11, 17, 32, 0.98);
  backdrop-filter: blur(16px);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  z-index: 99;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  border-bottom: 1px solid var(--border-subtle);
  overflow-y: auto;
}

.mobile-drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-link.active,
.mobile-nav-link:hover {
  color: #ffffff;
  padding-left: 0.5rem;
}

@media (min-width: 900px) {
  .nav-desktop { display: flex; }
  .nav-cta { display: inline-flex; }
  .mobile-toggle { display: none; }
  .mobile-drawer { display: none; }
}

/* --------------------------------------------------------------------------
   Buttons & Badges
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
  line-height: 1.2;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background: #1d4ed8;
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.45);
}

.btn-secondary {
  background-color: var(--bg-surface-alt);
  color: var(--text-main);
  border-color: var(--border-subtle);
}

.btn-secondary:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-active);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-subtle);
  color: var(--text-main);
}

.btn-outline:hover {
  border-color: var(--primary);
  background-color: var(--primary-light);
  color: #ffffff;
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.85rem 1.85rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-play-store {
  background-color: #050811;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-play-store:hover {
  border-color: var(--primary);
  background-color: #0e1628;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: #ffffff;
}

.btn-play-store-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.1;
}

.btn-play-store-text span:first-child {
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.btn-play-store-text span:last-child {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-primary {
  background-color: var(--primary-light);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-gold {
  background-color: var(--accent-gold-bg);
  color: #93c5fd;
  border: 1px solid rgba(37, 99, 235, 0.35);
}

.badge-emerald {
  background-color: var(--accent-emerald-bg);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* --------------------------------------------------------------------------
   Hero Sections
   -------------------------------------------------------------------------- */
.hero {
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.18) 0%, rgba(11, 17, 32, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.hero-content.text-left {
  text-align: left;
  margin: 0;
  max-width: 100%;
}

.hero-eyebrow {
  margin-bottom: 1.25rem;
}

.hero-title {
  margin-bottom: 1.25rem;
  font-weight: 800;
}

.hero-subtitle {
  font-size: 1.18rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero-content.text-left .hero-subtitle {
  margin-left: 0;
  margin-right: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-content.text-left .hero-actions {
  justify-content: flex-start;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  max-width: 650px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Cards, Surfaces & Features
   -------------------------------------------------------------------------- */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: var(--border-active);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--primary-light);
  border: 1px solid rgba(59, 130, 246, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: #60a5fa;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 0.65rem;
  color: #ffffff;
}

.card-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  flex-grow: 1;
}

.card-footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --------------------------------------------------------------------------
   Game Division Showcase
   -------------------------------------------------------------------------- */
.game-card {
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-surface-alt) 100%);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.game-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(37, 99, 235, 0.2);
}

.game-card-banner {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}

.game-card-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 17, 32, 0.2) 0%, rgba(17, 26, 46, 0.95) 100%);
}

.game-banner-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.game-app-icon {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.35rem;
  color: #ffffff;
}

.icon-imperium {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
}

.icon-ftt {
  background: linear-gradient(135deg, #047857 0%, #10b981 100%);
}

.game-card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.game-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.82rem;
}

.rating-stars {
  color: var(--accent-gold);
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-weight: 700;
}

.game-features-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
}

.game-features-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.game-features-list svg {
  color: var(--accent-emerald);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   App Detail Page Styles (imperium-trivia, ftt-quiz)
   -------------------------------------------------------------------------- */
.app-header-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 860px) {
  .app-header-grid {
    grid-template-columns: auto 1fr auto;
  }
}

.app-hero-icon {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 800;
  color: #ffffff;
}

.app-specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.app-specs-table th,
.app-specs-table td {
  padding: 0.85rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.92rem;
}

.app-specs-table th {
  color: var(--text-muted);
  font-weight: 500;
  width: 40%;
  background-color: rgba(255, 255, 255, 0.02);
}

.app-specs-table td {
  color: var(--text-main);
  font-weight: 600;
}

.app-specs-table tr:last-child th,
.app-specs-table tr:last-child td {
  border-bottom: none;
}

.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 2rem 0;
}

@media (min-width: 768px) {
  .screenshot-gallery {
    grid-template-columns: repeat(4, 1fr);
  }
}

.screenshot-item {
  background-color: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.screenshot-item:hover {
  transform: scale(1.02);
  border-color: var(--border-active);
}

.screen-mock {
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-sm);
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  position: relative;
  overflow: hidden;
}

.screen-mock-header {
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  display: flex;
  justify-content: space-between;
  font-size: 0.65rem;
  color: var(--text-dim);
}

.screen-mock-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-top: 1rem;
  margin-bottom: 0.25rem;
}

.screen-mock-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Process & Methodology Timeline
   -------------------------------------------------------------------------- */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  position: relative;
}

@media (min-width: 768px) {
  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.process-step {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  position: relative;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: var(--primary-light);
  color: #60a5fa;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

/* --------------------------------------------------------------------------
   Forms & Interactive Inputs
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
  background-color: var(--bg-surface-elevated);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 0.3rem;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  margin-top: 0.2rem;
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

.form-alert {
  padding: 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  display: none;
}

/* FALLO DE ESPECIFICIDAD, corregido el 14-9-2026.
   .form-alert llevaba display:none, pero .form-alert.success y .form-alert.error
   traian display:block y, al ser mas especificos, ganaban siempre. Resultado:
   quien abria la pagina de contacto leia "tu correo deberia estar abierto con el
   mensaje listo" y "revisa los campos obligatorios" ANTES de tocar nada.
   El display lo pone el JavaScript cuando toca; aqui solo va el color. */
.form-alert.success {
  background-color: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.form-alert.error {
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

/* --------------------------------------------------------------------------
   Tabs Navigation
   -------------------------------------------------------------------------- */
.tabs-nav {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 2rem;
  overflow-x: auto;
}

.tab-btn {
  padding: 0.75rem 1.25rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-main);
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* --------------------------------------------------------------------------
   Accordions (FAQ)
   -------------------------------------------------------------------------- */
.accordion-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
  margin-bottom: 1rem;
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  text-align: left;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.accordion-trigger:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.accordion-icon {
  transition: transform var(--transition-fast);
  color: var(--text-muted);
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  padding: 0 1.5rem;
}

.accordion-item.is-open .accordion-content {
  max-height: 500px;
  padding-bottom: 1.25rem;
}

/* --------------------------------------------------------------------------
   Legal Pages (privacidad, aviso-legal, terminos)
   -------------------------------------------------------------------------- */
.legal-layout {
  padding: 3rem 0 5rem;
}

.legal-article {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2.5rem;
}

@media (max-width: 640px) {
  .legal-article {
    padding: 1.5rem;
  }
}

.legal-article h2 {
  font-size: 1.4rem;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-subtle);
  color: #ffffff;
}

.legal-article h2:first-of-type {
  border-top: none;
  margin-top: 1rem;
  padding-top: 0;
}

.legal-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.88rem;
  color: var(--text-dim);
}

.legal-callout {
  background-color: rgba(37, 99, 235, 0.08);
  border-left: 4px solid var(--primary);
  padding: 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
}

.legal-callout p {
  margin-bottom: 0;
  color: #bfdbfe;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #070b15;
  border-top: 1px solid var(--border-subtle);
  padding: 4.5rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
  }
}

.footer-col h2,
.footer-col h3,
.footer-col h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: #ffffff;
  padding-left: 0.25rem;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-dim);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-legal-links a {
  color: var(--text-dim);
}

.footer-legal-links a:hover {
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--secondary); }
.text-gold { color: var(--accent-gold); }
.text-emerald { color: var(--accent-emerald); }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}


/* ===== Tipografia de marca: Plus Jakarta Sans en titulares, Inter en cuerpo ===== */
h1, h2, h3, h4, h5, h6,
.logo-text, .stat-number, .hero-title, .section-title {
  font-family: var(--font-display);
  letter-spacing: -0.015em;
}

/* --------------------------------------------------------------------------
   Real app artwork — iconos, capturas y sello de division
   Anadido el 14 de septiembre de 2026, al entrar los recursos reales de las
   carpetas RECURSOS IMPERIUM TRIVIA y FOOTBALL QUIZ.
   -------------------------------------------------------------------------- */

/* Los contenedores de icono dejan de pintar un degradado con dos letras
   dentro y pasan a enmarcar la imagen real. La clase de degradado se
   conserva como color de respaldo si la imagen no carga. */
.game-app-icon.has-art,
.app-hero-icon.has-art {
  overflow: hidden;
  padding: 0;
}

.game-app-icon.has-art img,
.app-hero-icon.has-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Capturas de verdad, en el mismo hueco 9/16 que ocupaban las maquetas. */
.shot-real {
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: #0f172a;
}

.shot-real img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.shot-caption {
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-top: 0.65rem;
  line-height: 1.35;
}

/* Sello de DA Quizs and Games. Va sobre fondo oscuro y no lleva caja:
   el propio sello ya es una forma cerrada. */
.division-seal {
  width: clamp(120px, 18vw, 170px);
  height: auto;
  display: block;
  margin: 0 auto 1.5rem;
  filter: drop-shadow(0 10px 28px rgba(37, 99, 235, 0.28));
}

/* Composicion de las dos apps: los dos iconos reales, juntos y a la misma
   altura, con el sello detras. Una sola fila que se apila en movil. */
.apps-lockup {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.25rem, 4vw, 2.75rem);
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

.apps-lockup figure {
  margin: 0;
  text-align: center;
  max-width: 190px;
}

.apps-lockup img {
  width: clamp(88px, 14vw, 128px);
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: block;
  margin: 0 auto 0.85rem;
}

.apps-lockup figcaption {
  font-family: var(--font-display, inherit);
  font-weight: 700;
  color: var(--text-main);
  font-size: 1rem;
  line-height: 1.3;
}

.apps-lockup .lockup-note {
  display: block;
  font-family: var(--font-sans, inherit);
  font-weight: 400;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.apps-lockup .divider-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
}

@media (max-width: 560px) {
  .apps-lockup .divider-dot { display: none; }
}

/* Laminas del modo historia de FTT Quiz: apaisadas 16/9, no 9/16 como una
   captura de movil. Se muestran como arte en produccion, no como capturas. */
.art-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.art-plate {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #0f172a;
  aspect-ratio: 16 / 9;
  max-width: 100%;
}

.art-plate img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-fast, 0.2s ease);
}

.art-plate:hover img { transform: scale(1.03); }

/* --------------------------------------------------------------------------
   Marca de la division · DA Quizs and Games
   El logo entregado por Alvaro el 14 de septiembre de 2026. Comparte paleta
   con la marca matriz —Titanio #64748B y Cobalto #2563EB— asi que no necesita
   caja ni marco: se apoya en el fondo de la pagina.
   -------------------------------------------------------------------------- */
.division-logo {
  width: clamp(104px, 16vw, 148px);
  height: auto;
  display: block;
  margin: 0 auto 1.75rem;
  border-radius: 22%;
  box-shadow: 0 18px 44px rgba(2, 6, 23, 0.65);
}

/* El sello SPQR es de Imperium, no de la division. Vive al pie de su ficha,
   junto a la linea de autoria. */
.game-seal {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border-subtle);
}

.game-seal img {
  width: clamp(88px, 12vw, 116px);
  height: auto;
  filter: drop-shadow(0 8px 22px rgba(100, 116, 139, 0.28));
}

.game-seal p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
  letter-spacing: 0.02em;
}


/* ==========================================================================
   ARREGLOS DE LA AUDITORIA TECNICA · 14 de septiembre de 2026
   ========================================================================== */

/* --- Desborde horizontal a 360 px -----------------------------------------
   Un item de grid lleva min-width:auto, asi que su contenido podia empujar la
   columna mas alla del contenedor: la retícula media 320 px y la columna salia
   a 353,2 px. Medido en index.html, que se iba 13 px a la derecha. */
.grid > * { min-width: 0; }

/* El resplandor decorativo de las tarjetas esta en position:absolute con
   right:-50px y sobresalia del borde. */
.card { overflow: hidden; }

/* La tabla de ficha tecnica medía 400 px en un movil de 360 y arrastraba la
   pagina entera. Ahora hace scroll ella sola. */
.app-specs-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.app-specs-table tbody { display: table; width: 100%; min-width: 320px; }

/* --- Enlaces dentro de un parrafo -----------------------------------------
   Se distinguian solo por color, y el contraste con el texto que los rodea era
   de 1,08:1 cuando WCAG pide 3:1. Se subrayan. */
/* Cualquier enlace dentro del contenido se subraya, salvo los que son botones
   o los que envuelven una imagen. Antes se distinguian solo por el color y el
   contraste con el texto de alrededor era de 1,08:1, cuando WCAG pide 3:1. */
main a:not(.btn):not(.btn-play-store):not(:has(img)):not(:has(svg)) {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}
.checkbox-label a { text-decoration: underline; text-underline-offset: 0.18em; }

/* --- Foco de teclado ------------------------------------------------------
   La hoja no definia ninguno: dependia del anillo por defecto del navegador,
   que en un fondo oscuro no esta garantizado. */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid #93c5fd;
  outline-offset: 3px;
  border-radius: 3px;
}

/* --- Objetivos tactiles del pie -------------------------------------------
   Los enlaces medían 16 px de alto; WCAG 2.2 pide 24. */
.footer-links a,
.footer-legal-links a { display: inline-block; padding-block: 0.3rem; }

/* --- Movimiento ----------------------------------------------------------
   No habia ninguna regla que respetara la preferencia del sistema. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* El correo de contacto de la empresa, en el pie de las once paginas.
   Antes solo estaba en cinco, y no en la portada. */
.footer-contact {
  margin: 1.25rem 0 0;
  font-size: 0.9rem;
}

.footer-contact a {
  color: #93c5fd;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  font-weight: 600;
}

.footer-contact a:hover { color: #bfdbfe; }