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

    html { scroll-behavior: smooth; }

    body {
      background: var(--bg);
      font-family: 'DM Sans', sans-serif;
      color: var(--white);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    /* ─── NAV ─── */
    nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 200;
      height: 64px;
      display: flex; align-items: center; justify-content: center;
      background: rgba(9,9,11,0.88);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border);
    }

    .nav-inner {
      width: 100%; max-width: 1280px;
      padding: 0 48px;
      display: flex; align-items: center; justify-content: space-between;
    }

    .nav-back {
      display: inline-flex; align-items: center; gap: 8px;
      font-size: 12px; color: var(--muted); text-decoration: none;
      letter-spacing: 0.06em;
      transition: color 0.2s;
    }

    .nav-back:hover { color: var(--blue-light); }

    .nav-logo {
      font-family: 'Syne', sans-serif;
      font-size: 15px; font-weight: 700;
      color: var(--white); text-decoration: none;
      letter-spacing: -0.01em;
    }

    .nav-cta {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 8px 20px;
      background: var(--blue); color: white;
      font-size: 12px; font-weight: 500; letter-spacing: 0.06em;
      border-radius: 6px; text-decoration: none;
      transition: filter 0.2s, transform 0.2s;
      box-shadow: 0 0 24px var(--blue-glow);
    }

    .nav-cta:hover { filter: brightness(1.12); transform: translateY(-1px); }

    /* ─── HERO ─── */
    .hero {
      padding: 140px 48px 80px;
      max-width: 1280px;
      margin: 0 auto;
      position: relative;
    }

    .hero-orb {
      position: absolute;
      top: 0; left: 50%;
      transform: translateX(-30%);
      width: 800px; height: 600px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(79,126,255,0.08) 0%, transparent 70%);
      pointer-events: none;
    }

    .hero-eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      background: rgba(79,126,255,0.12);
      border: 1px solid rgba(79,126,255,0.25);
      border-radius: 99px; padding: 5px 16px;
      font-size: 10px; font-weight: 500;
      color: var(--blue-light); letter-spacing: 0.1em;
      text-transform: uppercase;
      margin-bottom: 24px;
    }

    .hero-eyebrow-dot {
      width: 6px; height: 6px; border-radius: 50%;
      background: var(--blue);
      box-shadow: 0 0 8px var(--blue);
      animation: pulse 2s ease-in-out infinite;
    }

    @keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }

    .hero-title {
      font-family: 'Syne', sans-serif;
      font-size: clamp(48px, 6vw, 80px);
      font-weight: 800; line-height: 0.96;
      letter-spacing: -0.04em; color: var(--white);
      margin-bottom: 24px;
    }

    .hero-title .gradient {
      background: linear-gradient(135deg, var(--blue-light) 0%, var(--blue) 50%, var(--orange) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-desc {
      font-size: 16px; font-weight: 300; font-style: italic;
      color: var(--muted); line-height: 1.75;
      max-width: 600px; margin-bottom: 48px;
    }

    .hero-stats {
      display: flex; gap: 40px;
      padding-top: 40px;
      border-top: 1px solid var(--border);
    }

    .stat-num {
      font-family: 'Syne', sans-serif;
      font-size: 32px; font-weight: 800;
      color: var(--white); letter-spacing: -0.03em; line-height: 1;
    }

    .stat-num span { color: var(--blue); }
    .stat-label { font-size: 11px; color: var(--muted); margin-top: 4px; }

    /* ─── SISTEMAS GRID ─── */
    .sistemas-section {
      padding: 80px 48px 120px;
      max-width: 1280px;
      margin: 0 auto;
    }

    .sistemas-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 80px;
    }

    .sistema-card {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 20px;
      overflow: hidden;
      display: flex; flex-direction: column;
      position: relative;
      transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
      text-decoration: none;
      min-width: 0;
    }

    .sistema-card:hover {
      border-color: var(--blue);
      transform: translateY(-8px);
      box-shadow: 0 24px 64px rgba(79,126,255,0.12);
    }

    .sistema-card::after {
      content: '';
      position: absolute; inset: 0;
      background: radial-gradient(ellipse at 50% 0%, rgba(79,126,255,0.09) 0%, transparent 55%);
      opacity: 0; transition: opacity 0.3s; pointer-events: none;
    }

    .sistema-card:hover::after { opacity: 1; }

    /* Mockup window */
    .sistema-mockup {
      width: 100%;
      aspect-ratio: 16/9;
      overflow: hidden; position: relative;
      border-bottom: 1px solid var(--border);
    }

    .sistema-mockup img {
      width: 100%; height: 100%; object-fit: cover;
      object-position: top center;
      transition: transform 0.5s ease;
    }

    .sistema-card:hover .sistema-mockup img { transform: scale(1.05); }

    .mockup-chrome {
      position: absolute; top: 0; left: 0; right: 0;
      height: 30px;
      background: rgba(9,9,11,0.82);
      backdrop-filter: blur(8px);
      display: flex; align-items: center; gap: 5px;
      padding: 0 14px;
      border-bottom: 1px solid rgba(255,255,255,0.05);
      z-index: 2;
    }

    .dot { width: 8px; height: 8px; border-radius: 50%; }
    .dot.r { background: #FF5F57; }
    .dot.y { background: #FEBC2E; }
    .dot.g { background: #28C840; }

    .chrome-url {
      flex: 1; margin-left: 10px;
      height: 16px;
      background: rgba(255,255,255,0.05);
      border-radius: 4px;
      display: flex; align-items: center; padding: 0 10px;
      font-size: 8px; color: var(--muted);
      overflow: hidden; white-space: nowrap; letter-spacing: 0.03em;
    }

    /* Card body */
    .sistema-body {
      padding: 18px 18px 22px;
      display: flex; flex-direction: column; flex: 1;
      position: relative; z-index: 1;
      min-width: 0;
    }

    .sistema-seg {
      display: inline-flex; align-items: center; gap: 7px;
      font-size: 9px; font-weight: 500; letter-spacing: 0.12em;
      text-transform: uppercase; color: var(--blue-light);
      margin-bottom: 12px;
    }

    .sistema-name {
      font-family: 'Syne', sans-serif;
      font-size: 15px; font-weight: 800;
      letter-spacing: -0.01em; line-height: 1.2;
      color: var(--white); margin-bottom: 12px;
    }

    .sistema-name em {
      display: block;
      font-style: normal;
      background: linear-gradient(135deg, var(--blue-light), var(--blue));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      white-space: nowrap;
    }


    .sistema-desc {
      font-size: 13px; font-weight: 300; font-style: italic;
      color: var(--muted); line-height: 1.7; flex: 1;
      margin-bottom: 20px;
    }

    .sistema-features {
      display: flex; flex-wrap: wrap; gap: 6px;
      margin-bottom: 24px;
    }

    .feat-tag {
      font-size: 9px; font-weight: 500; letter-spacing: 0.07em;
      padding: 4px 10px; border-radius: 5px;
      background: rgba(79,126,255,0.07);
      border: 1px solid rgba(79,126,255,0.15);
      color: var(--muted);
    }

    .sistema-cta {
      display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
    }

    .btn-sistema-primary {
      display: inline-flex; align-items: center; gap: 7px;
      padding: 11px 20px;
      background: var(--blue); color: white;
      font-size: 11px; font-weight: 500; letter-spacing: 0.05em;
      border-radius: 8px; text-decoration: none;
      transition: filter 0.2s, transform 0.2s;
      box-shadow: 0 0 20px var(--blue-glow);
    }

    .btn-sistema-primary:hover { filter: brightness(1.12); transform: translateY(-1px); }

    .btn-sistema-ghost {
      display: inline-flex; align-items: center; gap: 7px;
      padding: 11px 18px;
      border: 1px solid var(--border-hi); color: var(--white);
      font-size: 11px; font-weight: 400; letter-spacing: 0.04em;
      border-radius: 8px; text-decoration: none;
      transition: border-color 0.2s, color 0.2s;
    }

    .btn-sistema-ghost:hover { border-color: var(--blue); color: var(--blue-light); }

    /* Trial badge */
    .trial-badge {
      display: inline-flex; align-items: center; gap: 5px;
      background: rgba(79,255,150,0.08);
      border: 1px solid rgba(79,255,150,0.2);
      color: #7FFFA8;
      font-size: 9px; font-weight: 500; letter-spacing: 0.1em;
      padding: 3px 10px; border-radius: 99px;
      margin-bottom: 12px; width: fit-content;
    }

    .trial-dot {
      width: 5px; height: 5px; border-radius: 50%;
      background: #7FFFA8;
      animation: pulse 2s ease-in-out infinite;
    }

    /* ─── BOTTOM CTA BANNER ─── */
    .cta-banner {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 56px 64px;
      display: flex; align-items: center; justify-content: space-between; gap: 40px;
      position: relative; overflow: hidden;
    }

    .cta-banner::before {
      content: '';
      position: absolute; top: -100px; left: -100px;
      width: 400px; height: 400px; border-radius: 50%;
      background: radial-gradient(circle, rgba(79,126,255,0.1) 0%, transparent 70%);
      pointer-events: none;
    }

    .cta-banner-left { position: relative; z-index: 1; }

    .cta-banner-eyebrow {
      font-size: 10px; font-weight: 500; letter-spacing: 0.2em;
      text-transform: uppercase; color: var(--blue);
      display: flex; align-items: center; gap: 12px;
      margin-bottom: 12px;
    }

    .cta-banner-eyebrow::before { content: ''; display: block; width: 24px; height: 1px; background: var(--blue); }

    .cta-banner-title {
      font-family: 'Syne', sans-serif;
      font-size: clamp(28px, 3vw, 40px);
      font-weight: 800; letter-spacing: -0.03em;
      color: var(--white); line-height: 1.1;
    }

    .cta-banner-sub {
      font-size: 14px; font-weight: 300; font-style: italic;
      color: var(--muted); margin-top: 10px; line-height: 1.6;
    }

    .cta-banner-actions {
      display: flex; gap: 12px; flex-shrink: 0;
      position: relative; z-index: 1;
    }

    .btn-primary-lg {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 14px 28px;
      background: var(--blue); color: white;
      font-size: 13px; font-weight: 500; letter-spacing: 0.04em;
      border-radius: 10px; text-decoration: none;
      transition: filter 0.2s, transform 0.2s;
      box-shadow: 0 0 32px var(--blue-glow);
    }

    .btn-primary-lg:hover { filter: brightness(1.12); transform: translateY(-2px); }

    .btn-ghost-lg {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 14px 24px;
      border: 1px solid var(--border-hi); color: var(--white);
      font-size: 13px; font-weight: 400; letter-spacing: 0.04em;
      border-radius: 10px; text-decoration: none;
      transition: border-color 0.2s, color 0.2s;
    }

    .btn-ghost-lg:hover { border-color: var(--blue); color: var(--blue-light); }

    /* ─────────────── FOOTER ─────────────── */
    footer {
      background: #06060A;
      padding: 56px 64px 32px;
      border-top: 1px solid var(--border);
    }

    .footer-top {
      display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr;
      gap: 48px; margin-bottom: 48px;
    }

    .footer-brand img { height: 28px; width: auto; margin-bottom: 16px; filter: brightness(1.1); }

    .footer-brand-desc { font-size: 13px; font-weight: 300; font-style: italic; color: var(--muted); line-height: 1.7; max-width: 220px; }

    .footer-col-title {
      font-family: 'Syne', sans-serif;
      font-size: 12px; font-weight: 700;
      color: var(--white); letter-spacing: 0.04em;
      margin-bottom: 16px;
    }

    .footer-links { display: flex; flex-direction: column; gap: 10px; list-style: none; }

    .footer-links a {
      font-size: 12px; font-weight: 300; font-style: italic;
      color: var(--muted); text-decoration: none;
      transition: color 0.2s;
    }

    .footer-links a:hover { color: var(--blue-light); }

    .footer-bottom {
      display: flex; justify-content: space-between; align-items: center;
      padding-top: 24px; padding-bottom: 8px; border-top: 1px solid var(--border);
    }

    footer { padding-bottom: 72px !important; }

    .footer-copy { font-size: 11px; color: var(--muted); font-style: italic; }
    .footer-social { display: flex; gap: 14px; }

    .social-link {
      width: 34px; height: 34px; border-radius: 8px;
      background: var(--card); border: 1px solid var(--border);
      display: flex; align-items: center; justify-content: center;
      font-size: 15px; color: var(--muted); text-decoration: none;
      transition: border-color 0.2s, color 0.2s;
    }

    .social-link:hover { border-color: var(--blue); color: var(--blue-light); }

    /* ─── REVEAL ─── */
    .reveal {
      opacity: 0; transform: translateY(28px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal.visible { opacity: 1; transform: translateY(0); }
    .delay-1 { transition-delay: 0.1s; }
    .delay-2 { transition-delay: 0.2s; }

    /* ─── MOBILE ─── */
    @media (max-width: 1200px) {
      .sistemas-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 900px) {
      .sistemas-grid { grid-template-columns: 1fr; }
      .hero { padding: 120px 24px 60px; }
      .sistemas-section { padding: 40px 24px 80px; }
      .cta-banner { flex-direction: column; padding: 40px 28px; }
      .cta-banner-actions { flex-direction: column; width: 100%; }
      .btn-primary-lg, .btn-ghost-lg { justify-content: center; }
      .hero-stats { flex-wrap: wrap; gap: 24px; }
      .nav-inner { padding: 0 20px; }
      .footer-mini { padding: 24px; flex-direction: column; gap: 12px; text-align: center; }
    }