/* ==========================================================================
   SuperCerebro Official Website - Stylesheet
   Palette & Design System derived from SuperCerebro Android App
   ========================================================================== */

:root {
  --primary-purple: #6852d4;
  --dark-purple: #4c1d95;
  --deep-indigo: #2e1065;
  --dark-bg: #0e0720;
  --dark-card: rgba(255, 255, 255, 0.06);
  --dark-card-hover: rgba(255, 255, 255, 0.11);
  --border-subtle: rgba(255, 255, 255, 0.14);
  --border-glow: rgba(168, 85, 247, 0.4);

  /* Brand Accents */
  --green-correct: #4ea187;
  --blue-hint: #3877ba;
  --red-wrong: #b63659;
  --slate-pass: #686e92;
  --gold-winner: #f59e0b;
  --gold-gradient: linear-gradient(135deg, #f59e0b, #fbbf24);

  --text-white: #fdfbf7;
  --text-muted: rgba(253, 251, 247, 0.76);
  --text-dim: rgba(253, 251, 247, 0.5);

  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --shadow-card: 0 12px 36px -8px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 50px rgba(104, 82, 212, 0.35);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--dark-bg);
  color: var(--text-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  background-color: var(--dark-bg);
  /* Capas de Textura Suave y Profundidad */
  background-image:
    /* 1. Malla de micro-puntos sutiles */
    radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    /* 2. Textura sutil de líneas diagonales */
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.012) 0, rgba(255, 255, 255, 0.012) 1px, transparent 0, transparent 48px),
    /* 3. Luces ambientales orgánicas (Glows) */
    radial-gradient(circle at 15% 15%, rgba(104, 82, 212, 0.35) 0%, transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(236, 72, 153, 0.18) 0%, transparent 42%),
    radial-gradient(circle at 50% 60%, rgba(78, 161, 135, 0.14) 0%, transparent 48%),
    radial-gradient(circle at 20% 88%, rgba(168, 85, 247, 0.22) 0%, transparent 45%),
    /* 4. Gradiente base profundo */
    radial-gradient(circle at 50% 0%, #2e1065 0%, #120928 65%, #0a0418 100%);
  background-size:
    36px 36px,
    auto,
    auto,
    auto,
    auto,
    auto,
    auto;
  background-attachment: fixed;
}

/* Grano orgánico táctil (Noise Overlay) */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Typography Helpers */
h1, h2, h3, h4 {
  color: var(--text-white);
  font-weight: 800;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ==========================================================================
   Header & Navbar
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 24px;
  transition: var(--transition-smooth);
}

.header.scrolled {
  background: rgba(14, 7, 32, 0.90);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 24px;
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  font-size: 1.4rem;
  letter-spacing: -0.5px;
}

.brand-logo {
  width: 170px;
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  list-style: none;
}

nav {
  margin-left: auto;
  margin-right: 30px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-white);
}

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

.mobile-nav-actions {
  display: none;
}

.lang-switch {
  display: flex;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 3px;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 16px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lang-btn.active {
  background: var(--text-white);
  color: var(--dark-purple);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.btn-cta-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #fdfbf7, #f3e8ff);
  color: #581c87;
  font-weight: 800;
  font-size: 0.9rem;
  padding: 10px 20px;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(253, 251, 247, 0.25);
  transition: var(--transition-smooth);
}

.btn-cta-nav:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(253, 251, 247, 0.4);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  padding: 140px 24px 80px;
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  min-height: 85vh;
}

.hero-tagline {
  display: none;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  color: #fbbf24;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.12;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-title span.highlight {
  background: linear-gradient(135deg, #a855f7, #ec4899, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 540px;
  line-height: 1.6;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 40px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #fdfbf7, #e9d5ff);
  color: #4c1d95;
  font-size: 1.05rem;
  font-weight: 800;
  padding: 16px 32px;
  border-radius: 50px;
  box-shadow: 0 8px 25px rgba(253, 251, 247, 0.3);
  transition: var(--transition-smooth);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 30px rgba(253, 251, 247, 0.45);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid var(--border-subtle);
  color: var(--text-white);
  font-size: 1rem;
  font-weight: 700;
  padding: 15px 28px;
  border-radius: 50px;
  transition: var(--transition-smooth);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: var(--text-white);
  transform: translateY(-2px);
}

.hero-badges-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.badge-item svg {
  color: #10b981;
}

/* Hero Visual Box */
.hero-visual {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--shadow-glow);
  border: 1.5px solid var(--border-subtle);
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s ease;
}

.hero-image-wrapper:hover img {
  transform: scale(1.03);
}

.floating-pill {
  position: absolute;
  padding: 12px 18px;
  border-radius: 50px;
  background: rgba(14, 7, 32, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  animation: float 4s ease-in-out infinite alternate;
}

.floating-pill.pill-top {
  top: -15px;
  right: -15px;
  border-color: rgba(78, 161, 135, 0.6);
}

.floating-pill.pill-bottom {
  bottom: -20px;
  left: -20px;
  animation-delay: -2s;
  border-color: rgba(245, 158, 11, 0.6);
}

@keyframes float {
  0% { transform: translateY(0); }
  100% { transform: translateY(-10px); }
}

/* ==========================================================================
   Manifesto / Philosophy Section
   ========================================================================== */
.section {
  padding: 100px 24px;
  max-width: 1240px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.section-tag {
  color: #c084fc;
  text-transform: uppercase;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  display: inline-block;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
}

.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.manifesto-card {
  background: var(--dark-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.manifesto-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--card-accent, #a855f7), transparent);
  opacity: 0;
  transition: var(--transition-fast);
}

.manifesto-card:hover {
  background: var(--dark-card-hover);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.manifesto-card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
  box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.05);
}

.manifesto-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.manifesto-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   How To Play (Experience Flow)
   ========================================================================== */
.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.step-card {
  background: var(--dark-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  position: relative;
}

.step-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: rgba(168, 85, 247, 0.4);
  margin-bottom: 12px;
  line-height: 1;
}

.step-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.step-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Scoring Formula Box */
.scoring-box {
  background: linear-gradient(135deg, rgba(104, 82, 212, 0.28), rgba(76, 29, 149, 0.45));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid rgba(168, 85, 247, 0.38);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.score-item {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
}

.score-val {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 4px;
}

.score-val.green { color: var(--green-correct); }
.score-val.blue { color: var(--blue-hint); }
.score-val.red { color: var(--red-wrong); }
.score-val.gold { color: var(--gold-winner); }

.score-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ==========================================================================
   Real Life Moments (Photo Grid)
   ========================================================================== */
.moments-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 32px;
}

.moment-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--dark-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
}

.moment-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.moment-img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

.moment-body {
  padding: 24px 28px;
}

.moment-body h3 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.moment-body p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Categories Grid
   ========================================================================== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.category-card {
  position: relative;
  height: 220px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.category-card:hover {
  transform: translateY(-5px) scale(1.02);
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.category-card:hover img {
  transform: scale(1.08);
}

.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 5, 25, 0.95) 0%, rgba(10, 5, 25, 0.4) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 18px;
}

.category-badge {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 6px;
  text-transform: uppercase;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.category-badge.free {
  background: #10b981;
  color: #064e3b;
}

.category-badge.pro {
  background: #f59e0b;
  color: #78350f;
}

.category-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-white);
}

/* ==========================================================================
   Pricing Table: Free vs PRO
   ========================================================================== */
.pricing-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  max-width: 960px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--dark-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.pricing-card.featured {
  background: linear-gradient(145deg, rgba(104, 82, 212, 0.35), rgba(46, 16, 101, 0.55));
  border: 2px solid #a855f7;
  box-shadow: 0 15px 40px rgba(104, 82, 212, 0.38);
  transform: scale(1.03);
}

.pricing-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold-gradient);
  color: #451a03;
  font-weight: 900;
  font-size: 0.78rem;
  padding: 6px 16px;
  border-radius: 50px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.plan-name {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.plan-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.plan-price {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 8px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.plan-price span.old-price {
  font-size: 1.3rem;
  color: var(--text-dim);
  text-decoration: line-through;
}

.plan-price span.period {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 600;
}

.plan-features {
  list-style: none;
  margin: 28px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-white);
}

.plan-feature-item.disabled {
  color: var(--text-dim);
  text-decoration: line-through;
}

.plan-feature-item svg {
  flex-shrink: 0;
}

.plan-feature-item svg.check { color: #10b981; }
.plan-feature-item svg.cross { color: #ef4444; }

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--dark-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-fast);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-white);
  font-size: 1.1rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  font-size: 1.4rem;
  transition: transform var(--transition-fast);
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

.faq-item.open .faq-answer {
  padding-bottom: 22px;
  max-height: 300px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: rgba(10, 5, 20, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
  padding: 30px 24px;
  margin-top: 60px;
}

.footer-container {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.footer-left strong {
  color: var(--text-white);
  font-weight: 800;
}

.footer-left a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 120px;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-ctas {
    justify-content: center;
  }

  .hero-badges-strip {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .brand-logo {
    display: none;
  }

  /* Hide original actions in header */
  .nav-actions .lang-switch,
  .nav-actions .btn-cta-nav {
    display: none;
  }

  /* Show and style actions inside mobile menu */
  .mobile-nav-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-subtle);
    width: 100%;
  }

  .mobile-nav-actions .lang-switch {
    width: fit-content;
  }

  .mobile-nav-actions .btn-cta-nav {
    width: 100%;
    justify-content: center;
  }

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

  .footer-container {
    justify-content: center;
    text-align: center;
  }

  .floating-pill {
    display: none;
  }
}