:root {
    --navy: #050e1f;
    --blue-dark: #0a1a35;
    --blue-mid: #0d2b5e;
    --blue-tech: #0f6fff;
    --cyan: #00d4ff;
    --cyan-soft: rgba(0,212,255,0.15);
    --white: #ffffff;
    --gray-light: #e8ecf4;
    --gray-soft: #a8b4cc;
    --card-bg: rgba(13,43,94,0.45);
    --border: rgba(0,212,255,0.18);
    --glow: 0 0 40px rgba(0,212,255,0.12);
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: 'DM Sans', sans-serif;
    background: var(--navy);
    color: var(--white);
    line-height: 1.65;
    overflow-x: hidden;
  }

  /* ── Utility ── */
  .container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
  .section { padding: 96px 0; }
  .section-sm { padding: 72px 0; }

  h1,h2,h3,h4 { font-family: 'Syne', sans-serif; line-height: 1.2; }

  .label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--cyan);
    margin-bottom: 16px;
    padding: 4px 14px;
    border: 1px solid var(--border);
    border-radius: 40px;
    background: var(--cyan-soft);
  }

  .btn {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: 'Syne', sans-serif; font-weight: 600; font-size: 14px;
    padding: 14px 32px; border-radius: 6px; text-decoration: none;
    cursor: pointer; border: none; transition: all .3s ease;
  }
  .btn-primary {
    background: linear-gradient(135deg, var(--blue-tech), var(--cyan));
    color: var(--white);
    box-shadow: 0 0 30px rgba(15,111,255,0.35);
  }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 50px rgba(0,212,255,0.45); }
  .btn-outline {
    border: 1.5px solid var(--border);
    color: var(--cyan);
    background: transparent;
  }
  .btn-outline:hover { background: var(--cyan-soft); border-color: var(--cyan); }

  /* ── Decorative background ── */
  .grid-bg {
    position: absolute; inset: 0; pointer-events: none; z-index: 0;
    background-image:
      linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
  }

  .orb {
    position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none;
  }

  /* ── NAV ── */
  nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 18px 0;
    background: rgba(5,14,31,0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: all .3s;
  }
  .nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    max-width: 1180px; margin: 0 auto; padding: 0 24px;
  }
  .logo {
    font-family: 'Syne', sans-serif; font-size: 20px; font-weight: 800;
    color: var(--white); text-decoration: none; display: flex; align-items: center; gap: 10px;
  }
  .logo-icon {
    width: 36px; height: 36px; border-radius: 8px;
    background: linear-gradient(135deg, var(--blue-tech), var(--cyan));
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
  }
  .logo span { color: var(--cyan); }
  .nav-links { display: flex; align-items: center; gap: 32px; }
  .nav-links a {
    font-size: 14px; font-weight: 500; color: var(--gray-soft);
    text-decoration: none; transition: color .25s;
  }
  .nav-links a:hover { color: var(--white); }
  .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
  .hamburger span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; }

  /* ── HERO ── */
  #hero {
    min-height: 100vh; display: flex; align-items: center;
    position: relative; overflow: hidden; padding-top: 90px;
  }
  .hero-orb-1 { width: 600px; height: 600px; background: rgba(15,111,255,0.15); top: -100px; right: -150px; }
  .hero-orb-2 { width: 400px; height: 400px; background: rgba(0,212,255,0.08); bottom: -50px; left: -100px; }
  .hero-content { position: relative; z-index: 1; max-width: 680px; }
  .hero-content h1 { font-size: clamp(36px, 5vw, 60px); font-weight: 800; margin-bottom: 24px; }
  .hero-content h1 em { font-style: normal; color: var(--cyan); }
  .hero-content p { font-size: 17px; color: var(--gray-soft); margin-bottom: 40px; max-width: 540px; line-height: 1.75; }
  .hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

  .hero-visual {
    position: absolute; right: -20px; top: 50%; transform: translateY(-50%);
    width: min(520px, 45vw); z-index: 1;
  }
  .hero-visual svg { width: 100%; height: auto; }

  /* Floating nodes animation */
  .node { animation: float 4s ease-in-out infinite; }
  .node:nth-child(2) { animation-delay: .8s; }
  .node:nth-child(3) { animation-delay: 1.6s; }
  .node:nth-child(4) { animation-delay: 2.4s; }
  @keyframes float {
    0%,100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
  }
  .pulse-ring { animation: pulse 2.5s ease-out infinite; }
  @keyframes pulse {
    0% { r: 12; opacity: .8; }
    100% { r: 28; opacity: 0; }
  }
  .data-line { stroke-dasharray: 200; stroke-dashoffset: 200; animation: drawLine 2s ease forwards; }
  @keyframes drawLine { to { stroke-dashoffset: 0; } }

  /* ── ABOUT ── */
  #sobre { background: var(--blue-dark); position: relative; overflow: hidden; }
  .sobre-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
  .sobre-visual {
    position: relative; height: 420px;
    background: linear-gradient(135deg, var(--blue-mid), var(--navy));
    border-radius: 16px; border: 1px solid var(--border);
    overflow: hidden; display: flex; align-items: center; justify-content: center;
  }
  .sobre-visual svg { width: 75%; opacity: .9; }
  .sobre-text h2 { font-size: clamp(28px, 3.5vw, 42px); font-weight: 800; margin-bottom: 24px; }
  .sobre-text h2 em { font-style: normal; color: var(--cyan); }
  .sobre-text p { color: var(--gray-soft); margin-bottom: 20px; font-size: 16px; line-height: 1.8; }

  /* ── SERVICES / SOLUTIONS ── */
  #solucoes { position: relative; overflow: hidden; }
  .section-header { text-align: center; margin-bottom: 64px; }
  .section-header h2 { font-size: clamp(28px, 3.5vw, 44px); font-weight: 800; margin-bottom: 16px; }
  .section-header h2 em { font-style: normal; color: var(--cyan); }
  .section-header p { color: var(--gray-soft); font-size: 16px; max-width: 520px; margin: 0 auto; }

  .solutions-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px;
  }
  .card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px; padding: 32px;
    transition: all .35s ease;
    backdrop-filter: blur(10px);
    position: relative; overflow: hidden;
  }
  .card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    transform: scaleX(0); transition: transform .4s ease;
  }
  .card:hover { transform: translateY(-6px); border-color: rgba(0,212,255,0.4); box-shadow: var(--glow); }
  .card:hover::before { transform: scaleX(1); }
  .card-icon {
    width: 52px; height: 52px; border-radius: 12px; margin-bottom: 20px;
    background: linear-gradient(135deg, rgba(15,111,255,0.25), rgba(0,212,255,0.15));
    border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    color: var(--cyan); font-size: 22px;
  }
  .card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
  .card p { font-size: 14px; color: var(--gray-soft); line-height: 1.7; }

  /* ── DIFERENCIAIS ── */
  #diferenciais { background: var(--blue-dark); }
  .diff-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
  .diff-item {
    display: flex; align-items: flex-start; gap: 18px;
    padding: 28px; border: 1px solid var(--border); border-radius: 12px;
    background: rgba(15,111,255,0.05);
    transition: all .3s;
  }
  .diff-item:hover { background: rgba(0,212,255,0.07); border-color: rgba(0,212,255,0.3); }
  .diff-icon {
    flex-shrink: 0; width: 44px; height: 44px; border-radius: 10px;
    background: linear-gradient(135deg, var(--blue-tech), var(--cyan));
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
  }
  .diff-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
  .diff-item p { font-size: 13px; color: var(--gray-soft); }

  /* ── COMO TRABALHAMOS ── */
  #processo { position: relative; overflow: hidden; }
  .steps { display: flex; flex-direction: column; gap: 0; max-width: 720px; margin: 0 auto; }
  .step {
    display: flex; gap: 32px; align-items: flex-start;
    position: relative; padding-bottom: 48px;
  }
  .step:last-child { padding-bottom: 0; }
  .step:not(:last-child)::after {
    content: ''; position: absolute; left: 26px; top: 56px;
    width: 2px; height: calc(100% - 56px);
    background: linear-gradient(to bottom, var(--cyan), transparent);
  }
  .step-num {
    flex-shrink: 0; width: 52px; height: 52px; border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-tech), var(--cyan));
    display: flex; align-items: center; justify-content: center;
    font-family: 'Syne', sans-serif; font-weight: 800; font-size: 18px;
    box-shadow: 0 0 20px rgba(0,212,255,0.3);
  }
  .step-content h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; padding-top: 12px; }
  .step-content p { color: var(--gray-soft); font-size: 15px; }

  /* ── CTA ── */
  #cta {
    background: linear-gradient(135deg, var(--blue-mid) 0%, var(--navy) 100%);
    position: relative; overflow: hidden; text-align: center;
  }
  .cta-orb { width: 500px; height: 500px; background: rgba(0,212,255,0.07); top: -100px; left: 50%; transform: translateX(-50%); }
  #cta .container { position: relative; z-index: 1; }
  #cta h2 { font-size: clamp(30px, 4vw, 50px); font-weight: 800; margin-bottom: 24px; }
  #cta h2 em { font-style: normal; color: var(--cyan); }
  #cta p { color: var(--gray-soft); font-size: 16px; max-width: 480px; margin: 0 auto 40px; }

  /* ── CONTATO ── */
  #contato { background: var(--blue-dark); }
  .contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 72px; align-items: start; }
  .contact-info h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; margin-bottom: 16px; }
  .contact-info h2 em { font-style: normal; color: var(--cyan); }
  .contact-info p { color: var(--gray-soft); margin-bottom: 40px; line-height: 1.8; }
  .contact-channels { display: flex; flex-direction: column; gap: 16px; }
  .channel {
    display: flex; align-items: center; gap: 14px;
    padding: 16px 20px; border: 1px solid var(--border); border-radius: 10px;
    text-decoration: none; color: var(--white); transition: all .3s;
    background: rgba(15,111,255,0.05);
  }
  .channel:hover { border-color: var(--cyan); background: var(--cyan-soft); }
  .channel-icon { font-size: 20px; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: 8px; background: var(--cyan-soft); }
  .channel-text { font-size: 14px; }
  .channel-text strong { display: block; font-weight: 600; margin-bottom: 2px; }
  .channel-text span { color: var(--gray-soft); font-size: 13px; }

  /* Form */
  .form-card {
    background: var(--card-bg); border: 1px solid var(--border);
    border-radius: 16px; padding: 40px; backdrop-filter: blur(10px);
  }
  .form-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
  .form-card p { color: var(--gray-soft); font-size: 14px; margin-bottom: 28px; }
  .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
  .form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
  label { font-size: 13px; font-weight: 500; color: var(--gray-light); }
  input, textarea, select {
    background: rgba(255,255,255,0.05); border: 1px solid var(--border);
    border-radius: 8px; padding: 12px 16px; color: var(--white); font-family: inherit;
    font-size: 14px; width: 100%; outline: none; transition: border .25s;
  }
  input:focus, textarea:focus { border-color: var(--cyan); background: rgba(0,212,255,0.05); }
  input::placeholder, textarea::placeholder { color: var(--gray-soft); }
  textarea { resize: vertical; min-height: 120px; }
  .btn-submit {
    width: 100%; padding: 15px; border-radius: 8px; border: none; cursor: pointer;
    background: linear-gradient(135deg, var(--blue-tech), var(--cyan));
    color: var(--white); font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 700;
    transition: all .3s; box-shadow: 0 0 30px rgba(15,111,255,0.3);
  }
  .btn-submit:hover { transform: translateY(-2px); box-shadow: 0 0 50px rgba(0,212,255,0.4); }

  /* ── FOOTER ── */
  footer {
    background: var(--navy); border-top: 1px solid var(--border); padding: 48px 0 32px;
  }
  .footer-inner { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 40px; }
  .footer-brand .logo { margin-bottom: 12px; }
  .footer-brand p { color: var(--gray-soft); font-size: 13px; max-width: 240px; line-height: 1.7; }
  .footer-links h4 { font-size: 14px; font-weight: 700; margin-bottom: 16px; color: var(--white); }
  .footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
  .footer-links a { font-size: 13px; color: var(--gray-soft); text-decoration: none; transition: color .25s; }
  .footer-links a:hover { color: var(--cyan); }
  .footer-social { display: flex; gap: 12px; margin-top: 8px; }
  .social-btn {
    width: 38px; height: 38px; border-radius: 8px; border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center; text-decoration: none;
    color: var(--gray-soft); font-size: 15px; transition: all .25s;
  }
  .social-btn:hover { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-soft); }
  .footer-bottom { border-top: 1px solid var(--border); margin-top: 40px; padding-top: 24px; text-align: center; color: var(--gray-soft); font-size: 13px; }

  /* Scroll reveal */
  .reveal { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s ease; }
  .reveal.visible { opacity: 1; transform: none; }

  /* ── RESPONSIVE ── */
  @media (max-width: 900px) {
    .hero-visual { display: none; }
    .sobre-grid, .contact-grid { grid-template-columns: 1fr; }
    .hero-content { max-width: 100%; }
    .form-row { grid-template-columns: 1fr; }
  }
  @media (max-width: 640px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .solutions-grid { grid-template-columns: 1fr; }
    .diff-grid { grid-template-columns: 1fr; }
    .section { padding: 64px 0; }
    .hero-btns { flex-direction: column; }
    .btn { justify-content: center; }
  }
  @media (max-width: 900px) {
    .nav-links a.nav-cta { display: none; }
  }