:root {
    /* Paleta Refinada */
    --bg: #05050A; /* Negro más profundo con tinte azulado */
    --surface: rgba(255, 255, 255, 0.03);
    --surface-hover: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.15);
    
    --text: #F1F5F9;
    --text-muted: #94A3B8;
    
    --brand: #8B5CF6;
    --brand-glow: rgba(139, 92, 246, 0.5);
    --brand2: #10B981;
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 50px -12px rgba(0, 0, 0, 0.7);
    
    --radius: 20px;
    --radius-sm: 12px;
    
    --max: 1120px;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
  }

  * { box-sizing: border-box; }
  
  html { scroll-behavior: smooth; }
  
  body {
    margin: 0;
    font-family: var(--font);
    color: var(--text);
    background-color: var(--bg);
    /* Fondo más sutil y ambiental */
    background-image: 
      radial-gradient(circle at 15% 0%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
      radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.12) 0%, transparent 40%);
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
  }

  a { color: inherit; text-decoration: none; transition: 0.2s; }
  .container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

  /* Animaciones */
  @keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .animate-in { animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; }
  .delay-1 { animation-delay: 0.1s; }
  .delay-2 { animation-delay: 0.2s; }
  .delay-3 { animation-delay: 0.3s; }

  /* Topbar */
  .topbar {
    position: sticky; top: 0; z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(5, 5, 10, 0.7);
    border-bottom: 1px solid var(--border);
  }
  .nav {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 0;
  }
  .brand {
    display: flex; align-items: center; gap: 12px;
    font-weight: 700; letter-spacing: -0.02em; font-size: 18px;
  }
  .logo {
    width: 32px; height: 32px; border-radius: 8px;
    background: linear-gradient(135deg, var(--brand), var(--brand2));
    box-shadow: 0 0 15px var(--brand-glow);
    position: relative;
  }
  
  .navlinks {
    display: flex; gap: 32px;
    font-size: 14px; font-weight: 500;
    color: var(--text-muted);
  }
  .navlinks a:hover { color: var(--text); }

  .navcta { display: flex; gap: 12px; }
  
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 18px;
    border-radius: 99px; /* Pill shape es más moderna */
    font-weight: 600; font-size: 14px;
    cursor: pointer; transition: all 0.2s ease;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.05);
    color: var(--text);
  }
  .btn:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-1px);
  }
  .btn.primary {
    border: 1px solid rgba(139, 92, 246, 0.5);
    background: linear-gradient(180deg, #9F7AEA 0%, #7C3AED 100%);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3), inset 0 1px 0 rgba(255,255,255,0.2);
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
  }
  .btn.primary:hover {
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.5), inset 0 1px 0 rgba(255,255,255,0.2);
  }

  /* Hero */
  .hero { padding: 80px 0 60px; overflow: hidden; }
  .grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: center;
  }
  
  .pill {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 12px; border-radius: 99px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    color: #C4B5FD; font-size: 13px; font-weight: 600;
    margin-bottom: 24px;
  }
  .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--brand2); box-shadow: 0 0 8px var(--brand2); }

  .h1 {
    font-size: clamp(40px, 5vw, 64px);
    line-height: 1.1; font-weight: 800; letter-spacing: -0.03em;
    margin: 0 0 20px;
    background: linear-gradient(to right, #fff, #94A3B8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .lead {
    color: var(--text-muted); font-size: 18px;
    line-height: 1.6; max-width: 90%; margin-bottom: 32px;
  }
  .hero-actions { display: flex; gap: 16px; margin-bottom: 32px; }
  
  .mini {
    display: flex; gap: 16px; flex-wrap: wrap;
    font-size: 13px; color: var(--text-muted); font-weight: 500;
  }
  .check { display: flex; align-items: center; gap: 6px; }
  .check svg { color: var(--brand2); }

  /* Hero Card Complex */
  .hero-card {
    position: relative;
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.4), rgba(15, 23, 42, 0.4));
    border: 1px solid var(--border);
    border-top: 1px solid var(--border-light);
    border-radius: 24px;
    padding: 30px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
  }
  /* Glow effect behind phone */
  .hero-card::before {
    content: ''; position: absolute;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 200px; height: 200px;
    background: var(--brand);
    filter: blur(80px); opacity: 0.25;
    pointer-events: none;
  }

  .phone {
    width: 280px; margin: 0 auto;
    border-radius: 36px;
    border: 6px solid #1e293b;
    background: #0f172a;
    padding: 10px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    transform: rotate(-3deg) translateY(0px); /* Ligera rotación para dinamismo */
    transition: transform 0.5s ease;
  }
  .hero-card:hover .phone { transform: rotate(0deg) translateY(-5px); }

  .screen {
    background: #0f172a; border-radius: 26px;
    border: 1px solid var(--border);
    padding: 20px; height: 100%;
    display: flex; flex-direction: column;
  }
  .tip-title { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
  .tip-sub { font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
  
  .chips { display: flex; gap: 8px; margin-bottom: 20px; }
  .chip {
    flex: 1; text-align: center; padding: 12px 0;
    border-radius: 12px; font-size: 14px; font-weight: 600;
    border: 1px solid var(--border);
    background: var(--surface);
    cursor: default;
  }
  .chip.best {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
    color: #34D399;
  }
  .paybtn {
    background: #009EE3; color: white;
    border-radius: 12px; padding: 14px;
    font-weight: 700; font-size: 14px;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    margin-top: auto;
    box-shadow: 0 4px 12px rgba(0, 158, 227, 0.3);
  }

  /* Cards Info */
  .info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 24px; }
  .info-card {
    background: rgba(255,255,255,0.03); border-radius: 16px; padding: 16px;
    border: 1px solid var(--border);
  }
  .info-title { font-weight: 700; font-size: 14px; color: var(--brand2); margin-bottom: 4px; }
  .info-desc { font-size: 12px; color: var(--text-muted); line-height: 1.4; }

  /* Sections */
  section { padding: 100px 0; }
  .section-title { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 12px; }
  .section-lead { font-size: 18px; color: var(--text-muted); max-width: 600px; margin-bottom: 40px; }
  
  .cards {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
  }
  .card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: all 0.3s ease;
  }
  .card:hover {
    transform: translateY(-5px);
    background: var(--surface-hover);
    border-color: var(--border-light);
    box-shadow: var(--shadow-sm);
  }
  .icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.05); margin-bottom: 16px;
    color: var(--text);
  }
  .icon.brand { background: rgba(139, 92, 246, 0.15); color: #A78BFA; }
  .icon.green { background: rgba(16, 185, 129, 0.15); color: #34D399; }
  
  .card h3 { font-size: 18px; margin: 0 0 8px; font-weight: 600; }
  .card p { font-size: 15px; color: var(--text-muted); margin: 0; line-height: 1.6; }

  /* Steps */
  .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .step {
    position: relative; padding: 30px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  }
  .badge {
    font-size: 24px; font-weight: 800; color: rgba(255,255,255,0.1);
    position: absolute; top: 20px; right: 24px;
  }
  .step h3 { font-size: 20px; margin-bottom: 10px; }

  /* Pricing */
  .pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
  .price-card {
    padding: 32px; border-radius: 24px;
    background: var(--surface); border: 1px solid var(--border);
    display: flex; flex-direction: column;
  }
  .price-card.featured {
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.08), rgba(5, 5, 10, 0));
    border: 1px solid rgba(139, 92, 246, 0.4);
    position: relative;
  }
  .price-tag {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--brand); color: white;
    font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 99px;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.4);
  }
  .price { font-size: 42px; font-weight: 800; letter-spacing: -1px; margin: 16px 0; }
  .price small { font-size: 14px; color: var(--text-muted); font-weight: 500; margin-left: 6px; }
  
  .features-list { list-style: none; padding: 0; margin: 24px 0 32px; flex-grow: 1; }
  .features-list li { display: flex; gap: 12px; margin-bottom: 16px; color: var(--text-muted); font-size: 15px; }
  .features-list svg { color: var(--brand); flex-shrink: 0; }

  /* FAQ */
  details {
    border-bottom: 1px solid var(--border); padding: 24px 0;
  }
  summary {
    font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; font-size: 18px;
  }
  summary::-webkit-details-marker { display: none; }
  details[open] summary { margin-bottom: 16px; color: var(--brand2); }
  details p { color: var(--text-muted); line-height: 1.6; margin: 0; }

  /* CTA Box */
  .cta-box {
    background: linear-gradient(120deg, #1e1b4b, #064e3b);
    border-radius: 30px; padding: 60px;
    text-align: center; border: 1px solid rgba(255,255,255,0.1);
    position: relative; overflow: hidden;
  }
  .cta-box::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at top right, rgba(255,255,255,0.1), transparent);
    pointer-events: none;
  }
  .cta-content { position: relative; z-index: 2; }

  /* Footer */
  footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 60px; color: var(--text-muted); font-size: 14px; }
  .footer-grid { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px; }
  
  @media (max-width: 900px) {
    .grid { grid-template-columns: 1fr; text-align: center; gap: 40px; }
    .hero-actions { justify-content: center; }
    .mini { justify-content: center; }
    .navlinks { display: none; }
    .phone { transform: rotate(0); }
    .steps { grid-template-columns: 1fr; }
  }