:root {
  /* Primitivos de marca */
  --blue-900: hsl(211 82% 27%);
  --blue-700: hsl(207 92% 37%);
  --cyan-600: hsl(194 85% 43%);
  --pink-600: hsl(331 78% 53%);
  --pink-50: hsl(331 100% 97%);
  --slate-950: hsl(215 35% 14%);
  --slate-700: hsl(215 18% 35%);
  --slate-500: hsl(215 14% 50%);
  --slate-300: hsl(214 22% 82%);
  --slate-100: hsl(210 30% 96%);
  --white: hsl(0 0% 100%);
  --success-700: hsl(151 66% 28%);
  --success-50: hsl(145 65% 95%);
  --warning-700: hsl(32 90% 30%);
  --warning-50: hsl(43 100% 94%);
  --danger-700: hsl(0 69% 37%);
  --danger-50: hsl(0 86% 97%);

  /* Semánticos */
  --color-primary: var(--blue-700);
  --color-primary-strong: var(--blue-900);
  --color-accent: var(--pink-600);
  --color-text: var(--slate-950);
  --color-text-muted: var(--slate-700);
  --color-border: var(--slate-300);
  --color-surface: var(--white);
  --color-background: hsl(207 45% 98%);
  --focus-ring: hsl(194 85% 43% / 35%);

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --radius-sm: .5rem;
  --radius-md: .8rem;
  --radius-lg: 1.25rem;
  --shadow-sm: 0 2px 8px hsl(211 82% 27% / 8%);
  --shadow-lg: 0 20px 55px hsl(211 82% 27% / 12%);
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 7%, hsl(194 85% 43% / 8%), transparent 25rem),
    radial-gradient(circle at 90% 20%, hsl(331 78% 53% / 7%), transparent 24rem),
    var(--color-background);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.55;
  overflow-x: hidden;
}
button, input, select { font: inherit; }
a { color: var(--color-primary-strong); text-underline-offset: .2em; }
a:hover { color: var(--color-accent); }
[hidden] { display: none !important; }

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 20;
  padding: var(--space-3) var(--space-4);
  background: var(--color-text);
  color: var(--white);
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  display: grid;
  place-items: center;
  min-height: 14rem;
  padding: var(--space-4) var(--space-4) 0;
  background: var(--white);
  border-bottom: 1px solid hsl(214 22% 82% / 60%);
}
.logo-crop {
  width: 100%;
  max-width: 50rem;
  aspect-ratio: 1600 / 908;
}
.logo-crop img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.page-shell { width: calc(100% - 2rem); max-width: 56rem; margin: 0 auto; padding: var(--space-10) 0 var(--space-12); }
.intro { max-width: 44rem; margin: 0 auto var(--space-8); text-align: center; }
.intro h1 { margin: var(--space-2) 0 var(--space-3); color: var(--color-primary-strong); font-size: clamp(1.8rem, 4vw, 2.7rem); line-height: 1.15; }
.intro p:last-child { color: var(--color-text-muted); }
.eyebrow { margin: 0; color: var(--color-accent); font-size: .8rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }

.form-card { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-5); }
.form-section {
  min-width: 0;
  padding: clamp(1.25rem, 4vw, 2rem);
  background: var(--color-surface);
  border: 1px solid hsl(214 22% 82% / 75%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.section-heading { display: flex; align-items: flex-start; gap: var(--space-4); margin-bottom: var(--space-6); }
.section-heading h2 { margin: 0; color: var(--color-primary-strong); font-size: clamp(1.2rem, 3vw, 1.5rem); line-height: 1.3; }
.section-heading p { margin: var(--space-1) 0 0; color: var(--color-text-muted); font-size: .92rem; }
.step-number { display: grid; flex: 0 0 2rem; width: 2rem; height: 2rem; place-items: center; background: var(--pink-50); color: var(--color-accent); border-radius: 50%; font-weight: 800; }

.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-5); }
.field { min-width: 0; }
.field-wide { grid-column: 1 / -1; }
.field-short { max-width: 24rem; }
.field label, .field legend { display: block; margin-bottom: var(--space-2); color: var(--color-text); font-size: .94rem; font-weight: 700; }
.field input:not([type="radio"]):not([type="checkbox"]), .field select {
  width: 100%;
  min-height: 3rem;
  padding: .7rem .85rem;
  color: var(--color-text);
  background: var(--white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 150ms, box-shadow 150ms;
}
.field input:hover, .field select:hover { border-color: var(--slate-500); }
.field input:focus, .field select:focus { border-color: var(--cyan-600); box-shadow: 0 0 0 4px var(--focus-ring); }
.field input[aria-invalid="true"], .field select[aria-invalid="true"] { border-color: var(--danger-700); }
.field select:disabled { color: var(--slate-500); background: var(--slate-100); cursor: not-allowed; }
.required { color: var(--danger-700); }
.field-error { min-height: 1.2em; margin: var(--space-1) 0 0; color: var(--danger-700); font-size: .82rem; font-weight: 650; }

.choice-field { padding: 0; border: 0; margin: 0; }
.choice-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.choice { position: relative; cursor: pointer; }
.choice input { position: absolute; opacity: 0; }
.choice span { display: block; min-width: 7rem; padding: .66rem 1rem; text-align: center; border: 1px solid var(--color-border); border-radius: 999px; transition: 150ms; }
.choice input:checked + span { color: var(--white); background: var(--color-primary); border-color: var(--color-primary); }
.choice input:focus-visible + span { box-shadow: 0 0 0 4px var(--focus-ring); }

.companions { display: grid; gap: var(--space-4); margin-top: var(--space-6); }
.companion-card { padding: var(--space-5); background: hsl(207 45% 98%); border: 1px solid hsl(207 50% 89%); border-radius: var(--radius-md); }
.companion-card h3 { margin: 0 0 var(--space-4); color: var(--color-primary-strong); font-size: 1rem; }
.child-notice { padding: var(--space-4); background: var(--white); border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.child-notice > p:first-child { margin: 0; }
.child-notice .consent { margin-top: var(--space-3); }
.child-notice .consent input { flex-shrink: 0; }

.compact-section { padding: 0; overflow: hidden; }
.network-card { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); padding: clamp(1.25rem, 4vw, 2rem); background: linear-gradient(125deg, hsl(194 85% 43% / 10%), hsl(331 78% 53% / 8%)); }
.network-card h2 { margin: var(--space-1) 0; color: var(--color-primary-strong); font-size: 1.3rem; }
.network-card p:last-child { margin: var(--space-2) 0 0; color: var(--color-text-muted); }

.privacy-details { border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; }
.privacy-details summary { padding: var(--space-4); color: var(--color-primary-strong); background: var(--slate-100); cursor: pointer; font-weight: 750; }
.privacy-copy { max-height: 20rem; overflow: auto; overflow-wrap: anywhere; padding: 0 var(--space-4) var(--space-4); color: var(--color-text-muted); font-size: .9rem; }
.consent { display: flex; align-items: flex-start; gap: var(--space-3); margin-top: var(--space-5); cursor: pointer; font-weight: 650; }
.consent input { width: 1.2rem; height: 1.2rem; margin-top: .2rem; accent-color: var(--color-primary); }

.submit-zone { display: flex; align-items: center; justify-content: space-between; gap: var(--space-5); padding: var(--space-6); background: var(--color-primary-strong); color: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.submit-zone p { margin: 0; color: hsl(0 0% 100% / 80%); font-size: .9rem; }
.button { display: inline-flex; min-height: 3rem; align-items: center; justify-content: center; gap: var(--space-2); padding: .7rem 1.25rem; border: 0; border-radius: var(--radius-sm); cursor: pointer; font-weight: 800; text-align: center; text-decoration: none; transition: transform 150ms, box-shadow 150ms, background 150ms; }
.button:hover { transform: translateY(-1px); }
.button:focus-visible { outline: 3px solid var(--cyan-600); outline-offset: 3px; }
.button:disabled { opacity: .65; cursor: wait; transform: none; }
.button-primary { flex: 0 0 auto; color: var(--color-primary-strong); background: var(--white); box-shadow: 0 6px 18px hsl(0 0% 0% / 15%); }
.button-secondary { color: var(--white); background: var(--color-primary); }
.button-accent { color: var(--white); background: var(--color-accent); }
.spinner { display: none; width: 1.1rem; height: 1.1rem; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
.is-loading .spinner { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

.alert { margin-bottom: var(--space-5); padding: var(--space-4); border-radius: var(--radius-sm); font-weight: 650; }
.alert-error { color: var(--danger-700); background: var(--danger-50); border: 1px solid hsl(0 65% 80%); }
.alert-success { color: var(--success-700); background: var(--success-50); border: 1px solid hsl(151 45% 75%); }
.alert-warning { color: var(--warning-700); background: var(--warning-50); border: 1px solid hsl(43 75% 70%); }
.honeypot { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }

/* Confirmación y escaneo */
.utility-page { min-height: 100vh; display: grid; grid-template-rows: auto 1fr auto; }
.utility-page .site-header { min-height: 9rem; }
.utility-page .logo-crop { width: min(31rem, 100%); }
.utility-main { display: grid; place-items: start center; width: calc(100% - 2rem); max-width: 42rem; margin: 0 auto; padding: var(--space-8) 0 var(--space-12); }
.result-card { width: 100%; padding: clamp(1.25rem, 5vw, 2.5rem); text-align: center; background: var(--white); border: 1px solid var(--color-border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.status-icon { display: grid; width: 4rem; height: 4rem; margin: 0 auto var(--space-4); place-items: center; color: var(--white); background: var(--success-700); border-radius: 50%; font-size: 2rem; }
.result-card h1 { margin: 0 0 var(--space-2); color: var(--color-primary-strong); font-size: clamp(1.65rem, 5vw, 2.25rem); }
.result-card > p { color: var(--color-text-muted); }
.qr-frame { display: inline-grid; place-items: center; margin: var(--space-5) auto; padding: var(--space-4); background: var(--white); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
.qr-frame img, .qr-frame canvas { display: block; max-width: 100%; height: auto; }
.summary-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: var(--space-5) 0; text-align: left; border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.summary-item { padding: var(--space-4); }
.summary-item + .summary-item { border-left: 1px solid var(--color-border); }
.summary-label { display: block; color: var(--color-text-muted); font-size: .75rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.summary-value { display: block; margin-top: var(--space-1); font-weight: 800; overflow-wrap: anywhere; }
.action-row { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-top: var(--space-5); }
.helper-note { padding: var(--space-4); color: var(--color-text-muted); background: var(--slate-100); border-radius: var(--radius-sm); font-size: .9rem; }
.scan-data { margin: var(--space-5) 0; text-align: left; }
.scan-data dl { display: grid; grid-template-columns: 1fr 1fr; margin: 0; border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.scan-data div { padding: var(--space-3) var(--space-4); }
.scan-data div:nth-child(4n + 3), .scan-data div:nth-child(4n + 4) { background: var(--slate-100); }
.scan-data dt { color: var(--color-text-muted); font-size: .8rem; font-weight: 700; }
.scan-data dd { margin: var(--space-1) 0 0; font-weight: 800; }
.password-box { max-width: 24rem; margin: var(--space-5) auto 0; text-align: left; }
.password-box .button { width: 100%; margin-top: var(--space-3); }

footer { padding: var(--space-6); color: var(--color-text-muted); text-align: center; font-size: .85rem; }

@media (max-width: 42rem) {
  .site-header { min-height: 10rem; }
  .page-shell { width: calc(100% - 1rem); padding-top: var(--space-6); }
  .field-grid { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .network-card, .submit-zone { align-items: stretch; flex-direction: column; }
  .submit-zone .button { width: 100%; }
  .summary-list { grid-template-columns: 1fr; }
  .summary-item + .summary-item { border-left: 0; border-top: 1px solid var(--color-border); }
  .scan-data dl { grid-template-columns: 1fr; }
  .scan-data div:nth-child(odd) { background: var(--slate-100); }
  .scan-data div:nth-child(even) { background: var(--white); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media print {
  body { background: var(--white); }
  .site-header, footer, .action-row, .helper-note { display: none; }
  .utility-main { padding: 0; }
  .result-card { box-shadow: none; border: 0; }
}