/* Summer Camp Campanario — formulario público (mobile first) */
:root {
  --bg: #0d1b2e;
  --bg-2: #12243d;
  --card: #1c3558;
  --card-2: #173050;
  --line: #2f4d77;
  --input: #132a47;
  --text: #f1f5fb;
  --muted: #b3c1d6;
  --gold: #e8b93e;
  --gold-2: #f3cd66;
  --gold-ink: #1b1400;
  --err: #ff9a8a;
  --err-bg: #3b1d24;
  --ok: #7fd9a8;
  --radius: 14px;
  --focus: 0 0 0 3px rgba(243, 205, 102, .55);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
}
main, .hero, .pie { width: 100%; max-width: 560px; margin: 0 auto; padding: 0 16px; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--gold); color: var(--gold-ink); padding: 8px 12px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 8px; }

/* Encabezado */
.hero { text-align: center; padding-top: 28px; padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.eyebrow { margin: 0 0 6px; color: var(--gold); letter-spacing: .16em; text-transform: uppercase; font-size: .78rem; font-weight: 700; }
.hero h1 { margin: 0 0 6px; font-size: clamp(1.6rem, 6.4vw, 2rem); line-height: 1.15; }
.sub { margin: 0; color: var(--muted); }

/* Secciones */
.section { border: 0; margin: 22px 0 0; padding: 0; min-width: 0; }
.section-title {
  display: flex; align-items: center; gap: 10px; padding: 0; margin: 0 0 12px;
  color: var(--gold); font-size: .92rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
}
.num { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--gold); color: var(--gold-ink); font-size: .75rem; letter-spacing: 0; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; min-width: 0; }
.aviso { margin-top: 24px; }

/* Períodos: tarjetas radio accesibles */
.periodo { position: relative; display: flex; gap: 12px; cursor: pointer; transition: border-color .15s, background .15s; }
.periodo input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.periodo-body { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; }
.periodo-nombre { font-weight: 800; font-size: 1.08rem; }
.periodo-fechas { color: var(--text); }
.precios { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 6px; font-size: .9rem; color: var(--muted); }
.precios strong { color: var(--text); }
.cupo { margin-top: 6px; font-size: .85rem; color: var(--gold-2); }
.radio-dot { flex: none; width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--line); margin-top: 2px; }
.periodo.is-checked { border-color: var(--gold); background: #243d62; box-shadow: 0 0 0 1px var(--gold) inset; }
/* (sin :has para no invalidar la regla en navegadores antiguos; JS agrega .is-checked y .has-focus) */
.periodo.has-focus { box-shadow: var(--focus); }
.periodo input:checked ~ .radio-dot { border-color: var(--gold); background: radial-gradient(circle, var(--gold) 0 45%, transparent 50%); }

/* Campos */
.field { margin-bottom: 14px; min-width: 0; }
.field:last-child { margin-bottom: 0; }
.field > label { display: block; font-weight: 700; font-size: .92rem; margin-bottom: 6px; color: var(--text); }
.opt { font-weight: 400; color: var(--muted); }
input[type=text], input[type=tel], input[type=email], input[type=date], select, textarea {
  display: block; width: 100%; max-width: 100%; min-width: 0;
  background: var(--input); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; font: inherit; font-size: 16px; /* 16px evita zoom en iOS */
  min-height: 48px;
}
/* Fecha: sin desbordes en iOS/Android */
input[type=date] {
  -webkit-appearance: none; appearance: none;
  text-align: left; line-height: 1.3;
}
input[type=date]::-webkit-date-and-time-value { text-align: left; margin: 0; }
input[type=date]::-webkit-calendar-picker-indicator { filter: invert(.85); cursor: pointer; }
select { -webkit-appearance: none; appearance: none; padding-right: 40px;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 20px) 21px, calc(100% - 14px) 21px; background-size: 6px 6px; background-repeat: no-repeat; }
textarea { resize: vertical; min-height: 64px; }
::placeholder { color: #7f91ab; opacity: 1; }
input:focus, select:focus, textarea:focus, button:focus-visible, summary:focus-visible, a:focus-visible { outline: none; box-shadow: var(--focus); border-color: var(--gold); }
[aria-invalid=true] { border-color: var(--err) !important; }
.hint { margin: 6px 0 0; font-size: .84rem; color: var(--muted); }
.salud-nota { margin: -4px 0 12px; }
.field-error { margin: 6px 0 0; color: var(--err); font-size: .86rem; font-weight: 600; }
.error-box { background: var(--err-bg); border-color: var(--err); color: var(--text); }
.error-box ul { margin: 6px 0 0; padding-left: 20px; }
.error-box a { color: var(--err); }

.check { display: flex; gap: 10px; align-items: flex-start; margin-top: 12px; }
.check input { width: 22px; height: 22px; flex: none; margin: 2px 0 0; accent-color: var(--gold); }
.check label { font-weight: 400; font-size: .92rem; margin: 0; }

/* Alumnos */
.alumno-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.alumno-titulo { margin: 0; color: var(--gold); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; }
.btn-quitar { background: none; border: 1px solid var(--line); color: var(--muted); border-radius: 8px; padding: 6px 10px; font: inherit; font-size: .85rem; cursor: pointer; min-height: 36px; }
.btn-quitar:hover { color: var(--err); border-color: var(--err); }
.btn-dashed { width: 100%; background: transparent; color: var(--gold); border: 2px dashed var(--gold); border-radius: var(--radius); padding: 14px; font: inherit; font-weight: 800; cursor: pointer; min-height: 52px; }
.btn-dashed:disabled { opacity: .45; cursor: not-allowed; }

/* Resumen */
.resumen { border-color: var(--gold); }
.resumen-grid { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; margin: 0 0 14px; }
.resumen-grid dt { color: var(--muted); }
.resumen-grid dd { margin: 0; text-align: right; font-weight: 700; overflow-wrap: anywhere; }
.resumen-grid .destacado { color: var(--gold-2); font-weight: 800; }
.nota-pre { border: 1px solid var(--gold); border-radius: 10px; padding: 12px 14px; background: var(--bg-2); font-size: .93rem; }
.nota-pre p { margin: 0; }
.privacidad { margin-top: 14px; }
.privacidad summary { cursor: pointer; color: var(--gold-2); font-weight: 700; padding: 6px 0; }
.privacidad-texto { background: var(--bg-2); border-radius: 10px; padding: 12px; font-size: .86rem; color: var(--muted); max-height: 280px; overflow: auto; overflow-wrap: anywhere; }

/* CTA fija */
.sticky-cta {
  position: sticky; bottom: 0; z-index: 10;
  margin: 18px -16px 0; padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--bg) 70%, rgba(13, 27, 46, 0));
}
.btn-primary { width: 100%; min-height: 54px; border: 0; border-radius: 12px; background: var(--gold); color: var(--gold-ink); font: inherit; font-size: 1.08rem; font-weight: 800; cursor: pointer; }
.btn-primary:hover { background: var(--gold-2); }
.btn-primary:disabled { opacity: .7; cursor: progress; }
.btn-secondary { width: 100%; min-height: 48px; border: 1px solid var(--gold); border-radius: 12px; background: transparent; color: var(--gold); font: inherit; font-weight: 700; cursor: pointer; margin: 8px 0; }
.btn-link { display: block; text-align: center; color: var(--muted); padding: 10px; }

/* Éxito */
.exito { margin-top: 24px; text-align: center; border-color: var(--gold); }
.exito h2 { margin: 0; font-size: 1.1rem; font-weight: 600; color: var(--muted); }
.folio { font-size: clamp(1.5rem, 8vw, 2.1rem); font-weight: 900; letter-spacing: .06em; color: var(--gold-2); margin: 6px 0 10px; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.estado-pill { display: inline-block; margin: 0 0 14px; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--gold); color: var(--gold-2); font-size: .85rem; font-weight: 700; }
.exito .resumen-grid { text-align: left; }
.exito > p { text-align: left; }
.exito > p.folio, .exito > p.estado-pill { text-align: center; }

.pie { text-align: center; color: var(--muted); font-size: .8rem; padding-top: 24px; padding-bottom: 32px; }
.pie p { margin: 2px 0; }

@media (min-width: 600px) {
  .hero { padding-top: 40px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
.error-box > p:first-child { margin-top: 0; }
.error-box ul { margin-bottom: 0; }
#r-periodo small { display: block; font-weight: 400; color: var(--muted); }