:root {
    --ink: #0F0F14;
    --paper: #F7F6F2;
    --accent: #7C3AED;
    --accent-light: #A78BFA;
    --gold: #F59E0B;
    --soft: #EDE9FE;
    --muted: #9896A8;
    --border-dark: rgba(255,255,255,0.08);
    --border-light: rgba(15,15,20,0.1);
  }

  html { scroll-behavior: smooth; }
  body { font-family: 'DM Sans', sans-serif; background: var(--ink); color: var(--paper); overflow-x: hidden; }

  /* ── TIPOGRAFÍA ── */
  .font-syne { font-family: 'Syne', sans-serif; }
  .font-mono { font-family: 'Fira Code', monospace; }
  .text-accent { color: var(--accent-light) !important; }
  .text-gold { color: var(--gold) !important; }
  .text-muted-custom { color: var(--muted) !important; }

  /* ── NAV ── */
  .navbar {
    background: rgba(15,15,20,0.85) !important;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-dark);
  }
  .navbar-brand { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 22px; letter-spacing: -0.03em; color: var(--paper) !important; }
  .navbar-brand span { color: var(--accent-light); }
  .nav-link { color: var(--muted) !important; font-size: 13px; transition: color 0.2s; }
  .nav-link:hover { color: var(--paper) !important; }
  .btn-nav-cta { background: var(--accent); color: white !important; border-radius: 8px; padding: 8px 20px; font-size: 13px; font-weight: 500; transition: opacity 0.2s; }
  .btn-nav-cta:hover { opacity: 0.85; }
  .navbar-toggler { border-color: rgba(255,255,255,0.2); }
  .navbar-toggler-icon { filter: invert(1); }

  /* ── HERO ── */
  .hero-section {
    background: var(--ink); min-height: 100vh;
    padding-top: 100px; padding-bottom: 60px;
    position: relative; overflow: hidden;
  }
  .hero-bg {
    position: absolute; inset: 0; pointer-events: none;
    background: radial-gradient(ellipse 60% 50% at 70% 50%, rgba(124,58,237,0.15) 0%, transparent 70%);
  }
  .hero-grid {
    position: absolute; inset: 0; pointer-events: none; opacity: 0.04;
    background-image: linear-gradient(var(--paper) 1px, transparent 1px), linear-gradient(90deg, var(--paper) 1px, transparent 1px);
    background-size: 48px 48px;
  }
  .hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(124,58,237,0.15); border: 1px solid rgba(124,58,237,0.3);
    padding: 6px 14px; border-radius: 100px; margin-bottom: 28px;
  }
  .hero-badge-quote {
    display: inline-flex;
    align-items: center;
    background: rgba(245,158,11,0.1);
    border: 1px solid rgba(245,158,11,0.25);
    padding: 6px 14px;
    border-radius: 100px;
    color: var(--gold-light);
    width: fit-content;
  }

  .hero-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); animation: pulse 2s infinite; flex-shrink: 0; }
  @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(0.8)} }
  .hero-title { font-family: 'Syne', sans-serif; font-weight: 800; font-size: clamp(40px, 5.5vw, 68px); letter-spacing: -0.03em; line-height: 1.05; }
  .hero-sub { font-size: 17px; font-weight: 300; line-height: 1.65; color: var(--muted); }

  .btn-primary-custom {
    background: var(--accent); color: white; padding: 13px 26px;
    border-radius: 10px; font-size: 15px; font-weight: 500;
    text-decoration: none; transition: all 0.2s; display: inline-flex;
    align-items: center; gap: 8px; border: none;
  }
  .btn-primary-custom:hover { background: #6D28D9; color: white; transform: translateY(-1px); }
  .btn-outline-custom {
    background: transparent; color: var(--paper); padding: 13px 26px;
    border-radius: 10px; font-size: 15px; font-weight: 400;
    text-decoration: none; transition: all 0.2s;
    border: 1px solid rgba(255,255,255,0.15);
  }
  .btn-outline-custom:hover { border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.05); color: var(--paper); }

  .hero-stat-num { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 26px; }
  .hero-stat-label { font-size: 12px; color: var(--muted); }
  .hero-stats-divider { border-top: 1px solid var(--border-dark); }

  /* ── MOCK WINDOW ── */
  .mock-window {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 14px; overflow: hidden;
    box-shadow: 0 32px 64px rgba(0,0,0,0.4);
    max-width: 400px; width: 100%;
  }
  .mock-bar {
    background: rgba(255,255,255,0.06); padding: 10px 14px;
    display: flex; align-items: center; gap: 6px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .mock-dot { width: 10px; height: 10px; border-radius: 50%; }
  .mock-stat-card {
    background: rgba(255,255,255,0.05); border-radius: 8px;
    padding: 10px 8px; text-align: center;
    border: 1px solid rgba(255,255,255,0.06);
  }
  .mock-stat-label { font-size: 9px; color: rgba(255,255,255,0.35); margin-bottom: 3px; }
  .mock-stat-val { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 13px; }
  .mock-row {
    display: flex; align-items: center; gap: 8px; padding: 8px 10px;
    border-radius: 8px; background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.04); margin-bottom: 6px;
  }
  .mock-row-active { background: rgba(124,58,237,0.15); border-color: rgba(124,58,237,0.25); }
  .mock-row-name { flex: 1; font-size: 11px; color: rgba(255,255,255,0.65); }
  .mock-row-price { font-family: 'Fira Code', monospace; font-size: 11px; color: var(--gold); font-weight: 500; }
  .mock-footer-bar {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 12px; border-radius: 8px;
    background: rgba(124,58,237,0.1); border: 1px solid rgba(124,58,237,0.2);
  }
  .mock-btn-cobrar {
    background: var(--accent); color: white; padding: 6px 16px;
    border-radius: 6px; font-size: 11px; font-weight: 600; font-family: 'Syne', sans-serif;
  }
  .hero-glow {
    position: absolute; inset: -60px; border-radius: 50%;
    background: radial-gradient(circle, rgba(124,58,237,0.18) 0%, transparent 70%);
    pointer-events: none;
  }

  /* ── DIVIDERS ── */
  .divider-dark-to-light { height: 70px; background: var(--paper); clip-path: polygon(0 100%, 100% 0, 100% 100%); margin-top: -1px; }
  .divider-light-to-dark { height: 70px; background: var(--ink); clip-path: polygon(0 0, 100% 100%, 0 100%); margin-top: -1px; }

  /* ── WHY SECTION ── */
  .why-section { background: var(--paper); color: var(--ink); }
  .section-tag { font-family: 'Fira Code', monospace; font-size: 11px; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); display: block; }
  .section-title { font-family: 'Syne', sans-serif; font-weight: 800; font-size: clamp(26px, 3.5vw, 42px); letter-spacing: -0.02em; line-height: 1.15; }
  .why-card {
    background: white; border: 1px solid rgba(15,15,20,0.08);
    border-radius: 16px; padding: 28px 24px; height: 100%;
    transition: transform 0.2s, box-shadow 0.2s;
  }
  .why-card:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(124,58,237,0.1); }
  .why-icon {
    width: 44px; height: 44px; border-radius: 10px;
    background: var(--soft); display: flex; align-items: center; justify-content: center;
  }
  .why-card h3 { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 15px; color: var(--ink); }
  .why-card p { font-size: 13px; color: #6B6880; line-height: 1.6; font-weight: 300; }

  /* ── SYSTEMS SECTION ── */
  .systems-section { background: var(--ink); }
  .systems-section .section-title { color: var(--paper); }
  .system-card {
    background: rgba(255,255,255,0.04); border: 1px solid var(--border-dark);
    border-radius: 16px; padding: 28px 24px; height: 100%;
    transition: border-color 0.2s, background 0.2s; position: relative; overflow: hidden;
  }
  .system-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: var(--accent); opacity: 0; transition: opacity 0.2s;
  }
  .system-card:hover { border-color: rgba(124,58,237,0.3); background: rgba(124,58,237,0.05); }
  .system-card:hover::before { opacity: 1; }
  .system-card.featured { border-color: rgba(124,58,237,0.4); background: rgba(124,58,237,0.06); }
  .system-card.featured::before { opacity: 1; }
  .system-name { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 19px; color: var(--paper); }
  .system-tag {
    display: inline-block; font-family: 'Fira Code', monospace; font-size: 10px;
    letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 10px; border-radius: 100px;
    background: rgba(124,58,237,0.2); color: var(--accent-light); border: 1px solid rgba(124,58,237,0.2);
  }
  .system-desc { font-size: 13px; color: var(--muted); line-height: 1.65; font-weight: 300; }
  .system-features { list-style: none; padding: 0; }
  .system-features li { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 8px; padding: 4px 0; }
  .system-features li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); flex-shrink: 0; }
  .system-divider { border-top: 1px solid var(--border-dark); }
  .price-num { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 28px; color: var(--gold); }
  .price-period { font-size: 12px; color: var(--muted); }
  .featured-badge {
    font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
    background: rgba(245,158,11,0.15); color: var(--gold);
    border: 1px solid rgba(245,158,11,0.2); padding: 3px 10px; border-radius: 100px;
  }

  /* ── CONTACT SECTION ── */
  .contact-section { background: var(--paper); color: var(--ink); }
  .contact-section .section-title { color: var(--ink); }
  .contact-info-card {
    background: white; border: 1px solid var(--border-light);
    border-radius: 16px; padding: 28px;
  }
  .contact-item { border-bottom: 1px solid var(--border-light); padding: 14px 0; }
  .contact-item:last-child { border-bottom: none; }
  .contact-icon { width: 36px; height: 36px; border-radius: 8px; background: var(--soft); display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
  .contact-item-text { font-size: 12px; color: #6B6880; }
  .contact-item-val { font-size: 14px; font-weight: 500; color: var(--ink); }
  .form-card { background: white; border: 1px solid var(--border-light); border-radius: 16px; padding: 28px; }
  .form-label-custom { font-size: 11px; font-weight: 500; color: #6B6880; letter-spacing: 0.06em; text-transform: uppercase; }
  .form-control-custom {
    padding: 11px 15px; border-radius: 10px;
    border: 1px solid rgba(15,15,20,0.12);
    font-size: 14px; color: var(--ink);
    font-family: 'DM Sans', sans-serif; font-weight: 300;
    transition: border-color 0.2s; outline: none; width: 100%;
  }
  .form-control-custom:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(124,58,237,0.1); }
  .btn-wa {
    background: #25D366; color: white; padding: 13px 24px; border-radius: 10px;
    font-size: 15px; font-weight: 500; text-decoration: none;
    display: flex; align-items: center; justify-content: center; gap: 10px;
    border: none; cursor: pointer; width: 100%; transition: all 0.2s;
    font-family: 'DM Sans', sans-serif;
  }
  .btn-wa:hover { background: #1dbe57; color: white; transform: translateY(-1px); }

  /* ── FOOTER ── */
  .footer-custom {
    background: var(--ink); color: var(--muted);
    border-top: 1px solid var(--border-dark);
  }
  .footer-logo { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 18px; letter-spacing: -0.02em; color: var(--paper); text-decoration: none; }
  .footer-logo span { color: var(--accent-light); }

  /* ── ANIMACIONES ── */
  .fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.55s ease, transform 0.55s ease; }
  .fade-in.visible { opacity: 1; transform: translateY(0); }