:root {
      --bg:      #b7dffd;
      --surface: #ededed;
      --title:   #443030;
      --muted:   #877a7a;
      --accent:  #2196F3;
    }

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

    body {
      background: var(--bg);
      font-family: system-ui, sans-serif;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* ── Hero ── */
    .hero {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 40px 24px 32px;
      text-align: center;
    }

    .hero-logo {
      width: 160px;
      max-width: 60vw;
      margin-bottom: 12px;
    }

    .hero-tagline {
      font-size: 14px;
      color: #3d2b2b;
      font-family: "Courier New", monospace;
      margin-bottom: 40px;
      max-width: 320px;
      line-height: 1.6;
    }

    /* ── Botones principales ── */
    .btn-main {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      width: 100%;
      max-width: 340px;
      padding: 18px 24px;
      border-radius: 16px;
      font-size: 17px;
      font-weight: 700;
      text-decoration: none;
      border: none;
      cursor: pointer;
      transition: transform 0.15s, box-shadow 0.15s;
      margin-bottom: 14px;
    }

    .btn-main:active { transform: scale(0.97); }

    .btn-domicilios {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 4px 16px rgba(33,150,243,0.35);
    }

    .btn-domicilios:hover {
      box-shadow: 0 6px 20px rgba(33,150,243,0.45);
      transform: translateY(-1px);
    }

    .btn-fisico {
      background: var(--surface);
      color: var(--title);
      box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    }

    .btn-fisico:hover {
      box-shadow: 0 4px 14px rgba(0,0,0,0.12);
      transform: translateY(-1px);
    }

    .btn-rastrear {
      background: #fff;
      color: var(--title);
      box-shadow: 0 2px 10px rgba(0,0,0,0.06);
      border: 1px solid var(--border);
    }

    .btn-rastrear:hover {
      box-shadow: 0 4px 14px rgba(0,0,0,0.10);
      transform: translateY(-1px);
    }

    .btn-negocio {
      background: #25a244;
      color: #fff;
      box-shadow: 0 4px 16px rgba(37,162,68,0.35);
    }

    .btn-negocio:hover {
      box-shadow: 0 6px 20px rgba(37,162,68,0.45);
      transform: translateY(-1px);
    }

    .btn-main .btn-icon {
      font-size: 26px;
      line-height: 1;
    }

    .btn-main .btn-text {
      display: flex;
      flex-direction: column;
      text-align: left;
    }

    .btn-main .btn-label {
      font-size: 17px;
      font-weight: 700;
    }

    .btn-main .btn-sub {
      font-size: 12px;
      font-weight: 400;
      opacity: 0.8;
      margin-top: 2px;
    }

    /* ── Acceso admin ── */
    .admin-link {
      margin-top: 32px;
      font-size: 12px;
      color: #4a3838;
      font-family: "Courier New", monospace;
    }

    .admin-link a {
      color: #4a3838;
      text-decoration: underline;
    }

    /* ── Responsive ── */
    @media (max-width: 400px) {
      .btn-main { font-size: 15px; padding: 16px 20px; }
    }