    /*
      ==========================
      VARIABLES DE MARCA
      ==========================
      Reemplaza estos valores por los colores exactos del logo cuando quieras.
      Por ahora dejé una base moderna y limpia que funciona bien para Centrio.
    */
    :root {
      --brand-primary: #1f5eff;
      --brand-primary-dark: #1247cc;
      --brand-secondary: #6f7cff;
      --brand-accent: #18b37a;
      --brand-text: #152033;
      --brand-muted: #5f6b7a;
      --brand-bg: #f6f9fc;
      --brand-surface: #ffffff;
      --brand-border: #dfe7f1;
      --brand-shadow: 0 18px 45px rgba(19, 42, 86, 0.12);
      --radius-xl: 24px;
      --radius-lg: 18px;
      --radius-md: 12px;
      --container: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Segoe UI", Inter, Roboto, Arial, sans-serif;
      color: var(--brand-text);
      background: var(--brand-bg);
      line-height: 1.5;
    }

    img { max-width: 100%; display: block; }
    a { text-decoration: none; color: inherit; }

    .container {
      width: min(100% - 2rem, var(--container));
      margin: 0 auto;
    }

    .section {
      padding: 5rem 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: .5rem;
      padding: .45rem .85rem;
      border-radius: 999px;
      background: rgba(19, 99, 168, 0.20);
      color: var(--brand-primary-dark);
      font-size: .9rem;
      font-weight: 700;
      letter-spacing: .02em;
    }

    .section-title {
      margin: 1rem 0 .75rem;
      font-size: clamp(2rem, 4vw, 3rem);
      line-height: 1.08;
    }

    .section-subtitle {
      max-width: 760px;
      margin: 0;
      color: var(--brand-muted);
      font-size: 1.05rem;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.9);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(223, 231, 241, 0.8);
    }

    .nav {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: .85rem;
      font-weight: 800;
      font-size: 1.2rem;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
      display: grid;
      place-items: center;
      color: white;
      font-size: 1.05rem;
      box-shadow: 0 10px 28px rgba(31, 94, 255, 0.25);
    }

    .brand small {
      display: block;
      font-size: .75rem;
      color: var(--brand-muted);
      font-weight: 600;
      margin-top: .05rem;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 1.35rem;
      flex-wrap: wrap;
    }

    .nav-links a {
      color: var(--brand-muted);
      font-weight: 600;
      transition: color .2s ease;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--brand-primary-dark);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: .55rem;
      padding: .95rem 1.3rem;
      border-radius: 999px;
      font-weight: 700;
      border: 1px solid transparent;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
      cursor: pointer;
    }

    .btn:hover { transform: translateY(-2px); }

    .btn-primary {
      color: white;
      background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
      box-shadow: 0 16px 30px rgba(17, 74, 124, 0.22);
    }

    .btn-secondary {
      color: var(--brand-primary-dark);
      background: white;
      border-color: var(--brand-border);
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding: 5.5rem 0 4rem;
      background:
        radial-gradient(circle at top right, rgba(31,94,255,0.14), transparent 28%),
        radial-gradient(circle at left center, rgba(24,179,122,0.10), transparent 22%),
        linear-gradient(180deg, #ffffff 0%, #f6f9fc 100%);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 2.4rem;
      align-items: center;
    }

    .hero h1 {
      margin: 1rem 0 1rem;
      font-size: clamp(2.4rem, 5vw, 4.5rem);
      line-height: .98;
      letter-spacing: -0.03em;
    }

    .hero p {
      margin: 0 0 1.6rem;
      max-width: 650px;
      color: var(--brand-muted);
      font-size: 1.08rem;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: .85rem;
      margin-bottom: 1.6rem;
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: .85rem;
      margin-top: 2rem;
    }

    .hero-point {
      background: rgba(255,255,255,0.85);
      border: 1px solid rgba(223, 231, 241, 0.9);
      border-radius: 18px;
      padding: 1rem;
      box-shadow: 0 10px 26px rgba(17, 34, 68, 0.05);
    }

    .hero-point strong {
      display: block;
      margin-bottom: .3rem;
      font-size: 1.1rem;
    }

    .hero-card {
      background: white;
      border: 1px solid var(--brand-border);
      border-radius: 28px;
      padding: 1.3rem;
      box-shadow: var(--brand-shadow);
    }

    .hero-visual {
      border-radius: 24px;
      min-height: 480px;
      padding: 1.4rem;
      background:
        linear-gradient(180deg, rgba(31,94,255,0.10), rgba(31,94,255,0.02)),
        linear-gradient(135deg, #ffffff, #eff5ff);
      display: grid;
      gap: 1rem;
    }

    .visual-panel {
      background: white;
      border: 1px solid var(--brand-border);
      border-radius: 20px;
      padding: 1.2rem;
      box-shadow: 0 12px 25px rgba(19, 42, 86, 0.08);
    }

    .visual-tag {
      display: inline-block;
      padding: .4rem .75rem;
      border-radius: 999px;
      background: rgba(1,119,148,0.22);
      color: #0f7a53;
      font-weight: 700;
      font-size: .88rem;
      margin-bottom: .8rem;
    }

    .visual-list {
      display: grid;
      gap: .75rem;
      margin-top: .9rem;
    }

    .visual-item {
      display: flex;
      align-items: start;
      gap: .75rem;
      padding: .9rem;
      background: var(--brand-bg);
      border-radius: 16px;
    }

    .visual-dot {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
      margin-top: .35rem;
      flex: 0 0 auto;
    }

    .grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 2rem;
      align-items: center;
    }

    .cards {
      margin-top: 2rem;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 1rem;
    }

    .card {
      background: var(--brand-surface);
      border: 1px solid var(--brand-border);
      border-radius: 22px;
      padding: 1.4rem;
      box-shadow: 0 12px 30px rgba(17, 34, 68, 0.05);
      transition: transform .18s ease, box-shadow .18s ease;
    }

    .card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 38px rgba(19, 42, 86, 0.10);
    }

    .card-icon {
      width: 52px;
      height: 52px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      margin-bottom: 1rem;
      background: rgba(31, 94, 255, 0.10);
      color: var(--brand-primary-dark);
      font-size: 1.4rem;
    }

    .card h3 {
      margin: 0 0 .7rem;
      font-size: 1.18rem;
    }

    .card p {
      margin: 0 0 1rem;
      color: var(--brand-muted);
      font-size: .97rem;
    }

    .card a {
      color: var(--brand-primary-dark);
      font-weight: 700;
      font-size: .95rem;
    }

    .energy-banner {
      /* background: linear-gradient(135deg, #10244e 0%, #1f5eff 100%); */
      background: linear-gradient(135deg, #1870BA 0%, #019DA1 100%);
      color: white;
      border-radius: 30px;
      padding: 2rem;
      box-shadow: 0 22px 44px rgba(16, 36, 78, 0.30);
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 1.5rem;
      align-items: center;
      overflow: hidden;
      position: relative;
    }

    .energy-banner::after {
      content: "";
      position: absolute;
      right: -80px;
      top: -80px;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
    }

    .energy-banner h3 {
      margin: .8rem 0;
      font-size: clamp(1.7rem, 4vw, 2.7rem);
      line-height: 1.05;
    }

    .energy-banner p {
      margin: 0;
      color: rgba(255,255,255,0.88);
      max-width: 640px;
    }

    .energy-stats {
      display: grid;
      gap: .9rem;
      position: relative;
      z-index: 1;
    }

    .stat-box {
      background: rgba(255,255,255,0.12);
      border: 1px solid rgba(255,255,255,0.16);
      border-radius: 18px;
      padding: 1rem 1.1rem;
      backdrop-filter: blur(8px);
    }

    .stat-box strong {
      display: block;
      margin-bottom: .25rem;
      font-size: 1.25rem;
    }

    .benefits {
      margin-top: 2rem;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 1rem;
    }

    .benefit {
      display: flex;
      gap: .9rem;
      align-items: start;
      background: white;
      border: 1px solid var(--brand-border);
      border-radius: 18px;
      padding: 1rem 1.1rem;
    }

    .benefit-check {
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(24,179,122,0.14);
      color: #0f7a53;
      font-weight: 900;
    }

    .contact-box {
      background: white;
      border: 1px solid var(--brand-border);
      border-radius: 28px;
      padding: 2rem;
      box-shadow: var(--brand-shadow);
    }

    .contact-grid {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 1.5rem;
      align-items: start;
    }

    .contact-list {
      display: grid;
      gap: .9rem;
      margin-top: 1.2rem;
    }

    .contact-item {
      display: flex;
      gap: .8rem;
      align-items: start;
      color: var(--brand-muted);
    }

    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 1rem;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: .45rem;
    }

    .form-group.full { grid-column: 1 / -1; }

    label {
      font-weight: 700;
      font-size: .95rem;
    }

    input, textarea, select {
      width: 100%;
      padding: .95rem 1rem;
      border-radius: 14px;
      border: 1px solid var(--brand-border);
      background: #fbfdff;
      font: inherit;
      color: var(--brand-text);
    }

    input:focus, textarea:focus, select:focus {
      outline: none;
      border-color: rgba(31, 94, 255, 0.45);
      box-shadow: 0 0 0 4px rgba(31, 94, 255, 0.10);
    }

    textarea {
      min-height: 135px;
      resize: vertical;
    }

    .site-footer {
      padding: 2.2rem 0 3rem;
      color: var(--brand-muted);
    }

    .footer-box {
      display: flex;
      justify-content: space-between;
      gap: 1rem;
      flex-wrap: wrap;
      padding-top: 1.2rem;
      border-top: 1px solid var(--brand-border);
    }

    @media (max-width: 1080px) {
      .hero-grid,
      .grid-2,
      .energy-banner,
      .contact-grid {
        grid-template-columns: 1fr;
      }

      .cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .hero-points,
      .benefits {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 720px) {
      .nav {
        padding: .8rem 0;
        align-items: start;
        flex-direction: column;
      }

      .nav-links {
        width: 100%;
        justify-content: flex-start;
      }

      .section {
        padding: 4rem 0;
      }

      .cards,
      .form-grid {
        grid-template-columns: 1fr;
      }

      .hero {
        padding-top: 4.2rem;
      }

      .hero h1 {
        font-size: 2.45rem;
      }
    }
