:root {
  --font-body: 1rem;
  --font-h1-min: 2.2rem;
  --font-h1-max: 3.2rem;
  --font-h2-min: 1.55rem;
  --font-h2-max: 2rem;
  --font-lead: 1.1rem;
  --font-topbar: 0.92rem;
  --font-badge: 0.87rem;
  --font-note: 0.85rem;

  --bg: #2b83cc;
  --surface: #ffffff;
  --section-alt-bg: #78c2ff;
  --hero-fade: #80caff;
  --ink: #1a1f26;
  --muted: #4f5d6d;
  --primary: #000000;
  --primary-dark: #084a82;
  --border: #000000;
  --whatsapp: #111111;
  --whatsapp-dark: #006ead;

  --on-dark: #ffffff;
  --topbar-border: #0b0b0b;
  --topbar-cta-bg: #ffffff;
  --topbar-cta-border: #cdddf0;
  --skip-link-bg: #ffffff;
  --skip-link-border: #000000;
  --lead-color: #203246;
  --btn-outline-color: #1f2d3d;
  --btn-outline-bg: #ffffff;
  --btn-outline-hover-bg: #f2f6fb;
  --card-border: #cfdae6;
  --field-border: #c4d4e6;
  --field-bg: #ffffff;
  --field-focus-outline: #8eb9df;
  --footer-link: #7fc4ff;
  --theme-lab-bg: #ffffff;
  --theme-lab-border: #cfd9e4;
  --theme-lab-text-muted: #425267;
  --theme-lab-btn-border: #c7d4e2;
  --theme-lab-btn-bg: #f7fafc;
  --theme-lab-btn-text: #1f2d3d;
  --theme-lab-output-bg: #0f1720;
  --theme-lab-output-text: #d4ecff;

  --hero-radial: rgba(10, 94, 168, 0.16);
  --shadow-primary: rgba(10, 94, 168, 0.28);
  --shadow-dark: rgba(0, 0, 0, 0.26);
  --shadow-card: rgba(7, 33, 63, 0.1);
  --shadow-lab: rgba(7, 33, 63, 0.18);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
  caret-color: transparent;
}

a { color: inherit; }
.container { width: min(1140px, 92%); margin: 0 auto; }
.section { padding: 68px 0; }
.section-alt { background: var(--section-alt-bg); }

.topbar {
  background: linear-gradient(90deg, var(--primary), var(--whatsapp));
  color: var(--on-dark);
  font-size: var(--font-topbar);
  border-bottom: 2px solid var(--topbar-border);
}
.topbar-wrap {
  min-height: 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.topbar-wrap p {
  margin: 0;
}
.topbar a {
  text-decoration: none;
  color: var(--on-dark);
}
.topbar-meta {
  font-weight: 600;
}
.topbar-cta a {
  background: var(--topbar-cta-bg);
  color: var(--primary);
  padding: 8px 14px;
  border-radius: 4px;
  font-weight: 700;
  border: 1px solid var(--topbar-cta-border);
}

.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 10px;
  top: 10px;
  z-index: 1000;
  background: var(--skip-link-bg);
  padding: 8px;
  border: 1px solid var(--skip-link-border);
}

.hero {
  background:
    radial-gradient(circle at 85% 15%, var(--hero-radial), transparent 32%),
    linear-gradient(180deg, var(--bg), var(--hero-fade));
  color: var(--ink);
  padding: 70px 0 64px;
  border-top: 4px solid var(--whatsapp);
  border-bottom: 1px solid var(--border);
}

.badge {
  display: block;
  margin: 0 0 14px;
  color: var(--on-dark);
  background: var(--primary);
  width: fit-content;
  padding: 7px 12px;
  border-radius: 4px;
  font-size: var(--font-badge);
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.brand-logo {
  display: block;
  width: 100%;
  max-width: 58ch;
  margin: 0 0 12px;
}
.brand-logo img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; }
h1 { font-size: clamp(var(--font-h1-min), 4.4vw, var(--font-h1-max)); letter-spacing: -0.01em; }
h2 { font-size: clamp(var(--font-h2-min), 2.4vw, var(--font-h2-max)); }
.lead { font-size: var(--font-lead); max-width: 58ch; margin-bottom: 16px; color: var(--lead-color); }

.hero-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: start;
}

.hero-copy {
  width: 100%;
  max-width: 58ch;
}

.hero-points {
  margin: 0 0 20px;
  padding-left: 0;
  list-style: none;
}
.hero-points li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
}
.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-block;
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 14px 22px;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease;
}
.btn:disabled {
  cursor: not-allowed;
  opacity: 0.7;
  transform: none;
  box-shadow: none;
}
.btn:hover,
.btn:focus {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: var(--on-dark);
  box-shadow: 0 10px 22px var(--shadow-primary);
}
.btn-primary:hover,
.btn-primary:focus { background: var(--primary-dark); }

.btn-outline {
  border-color: var(--btn-outline-color);
  color: var(--btn-outline-color);
  background: var(--btn-outline-bg);
}
.btn-outline:hover,
.btn-outline:focus {
  background: var(--btn-outline-hover-bg);
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: var(--on-dark);
  box-shadow: 0 10px 22px var(--shadow-dark);
}
.btn-whatsapp:hover,
.btn-whatsapp:focus {
  background: var(--whatsapp-dark);
}

.card {
  background: var(--surface);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 22px;
  box-shadow: 0 12px 28px var(--shadow-card);
}

.form-card {
  color: var(--ink);
  border-top: 6px solid var(--whatsapp);
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 700;
}

input, select, textarea, button {
  font: inherit;
}

input, select, textarea {
  caret-color: auto;
  width: 100%;
  border: 1px solid var(--field-border);
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 12px;
  background: var(--field-bg);
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--field-focus-outline);
  border-color: var(--primary);
}

.btn-block { width: 100%; }
.form-note { margin: 8px 0 0; font-size: var(--font-note); color: var(--muted); }
.hp { position: absolute; left: -9999px; }
.success-message {
  min-height: 22px;
  margin: 8px 0 0;
  color: var(--primary-dark);
  font-weight: 700;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.two-col {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  align-items: start;
}

.checklist {
  margin: 0;
  padding-left: 18px;
}
.checklist li { margin-bottom: 8px; }

.testimonial .small {
  color: var(--muted);
  font-size: 0.9rem;
}

.cta-band {
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  color: var(--on-dark);
}

.cta-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.footer {
  background: var(--whatsapp);
  color: var(--on-dark);
  padding: 38px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.footer a { color: var(--footer-link); }

.theme-lab {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 9999;
  width: min(320px, calc(100vw - 28px));
  max-height: calc(100vh - 28px);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--theme-lab-bg);
  border: 1px solid var(--theme-lab-border);
  border-radius: 10px;
  box-shadow: 0 14px 30px var(--shadow-lab);
  padding: 12px;
  font-size: 0.9rem;
}
.theme-lab h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}
.theme-lab p {
  margin: 0 0 10px;
  color: var(--theme-lab-text-muted);
}
.theme-lab-controls {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-bottom: 10px;
}
.theme-lab-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.theme-lab-row label {
  margin: 0;
  font-weight: 600;
  font-size: 0.82rem;
}
.theme-lab-row input[type="color"] {
  width: 44px;
  height: 30px;
  border: 0;
  padding: 0;
  margin: 0;
  background: transparent;
  cursor: pointer;
}
.theme-lab-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}
.theme-lab-actions button {
  border: 1px solid var(--theme-lab-btn-border);
  background: var(--theme-lab-btn-bg);
  color: var(--theme-lab-btn-text);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}
.theme-lab-output {
  margin: 0;
  max-height: 140px;
  overflow: auto;
  background: var(--theme-lab-output-bg);
  color: var(--theme-lab-output-text);
  padding: 8px;
  border-radius: 6px;
  font-size: 0.75rem;
}

@media (max-width: 900px) {
  .topbar-wrap {
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 10px 0;
  }

  .hero-grid,
  .grid-3,
  .two-col,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .cta-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .brand-logo {
    margin-bottom: 10px;
  }
}