/*
 * /demo — rediseño F (maqueta `F-demo.dc.html`). Prefijo `f-demo-*`.
 * Sólo tokens del sistema; movimiento sólo transform/opacity y con su
 * estado base legible (lo apaga `prefers-reduced-motion` desde `f.css`).
 */

/* ------------------------------------------------------------------ Cabecera */
.f-demo-hero { padding-block: clamp(56px, 7vw, 88px) clamp(40px, 5vw, 56px); border-bottom: 1px solid var(--f-line); }
.f-demo-hero__grid { align-items: end; }
.f-demo-hero__lead { max-width: 540px; }
.f-demo-ok { color: var(--f-ok); }
.f-demo-ok .f-sq { background: var(--f-ok); }

/* ------------------------------------------------------------------ Cuerpo */
.f-demo-body { display: grid; grid-template-columns: minmax(0, 1fr); gap: 48px; align-items: start; }
@media (min-width: 1024px) {
  .f-demo-body { grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); gap: 56px; }
  .f-demo-side { position: sticky; top: calc(var(--f-nav-h) + 20px); }
}
.f-demo-main { display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.f-demo-form { display: flex; flex-direction: column; gap: 24px; }
.f-demo-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); gap: 18px; }
.f-demo-grid__wide { grid-column: 1 / -1; }
.f-demo-input { width: 100%; flex: none; height: 48px; }
.f-demo-input[aria-invalid='true'] { border-color: var(--f-bad); }
.f-demo-error { margin-top: 6px; font-size: 13px; color: var(--f-bad); }

.f-demo-alert { padding: 14px 16px; border: 1px solid var(--f-line2); border-inline-start: 3px solid var(--f-bad); font-size: 14.5px; line-height: 1.5; }
.f-demo-alert__t { margin-bottom: 4px; }
.f-demo-alert ul { padding-inline-start: 18px; list-style: square; }
.f-demo-alert a { color: var(--f-ink); border-bottom: 1px solid var(--f-line2); }

/* Trampa anti-bot: fuera de pantalla, no `display:none`. */
.f-demo-hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }

/* Casillas como celdas con filete. */
.f-demo-set { margin: 0; padding: 0; border: 0; min-width: 0; }
.f-demo-set > .f-label { padding: 0; margin-bottom: 10px; }
.f-demo-checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(190px, 100%), 1fr)); gap: 8px; }
.f-demo-checks--l { grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr)); }
.f-demo-chk {
  display: flex; align-items: center; gap: 10px; min-height: 44px; padding: 8px 14px;
  border: 1px solid var(--f-line); font-size: 14.5px; line-height: 1.35; cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.f-demo-chk:hover { border-color: var(--f-line2); }
.f-demo-chk:has(input:checked) { border-color: var(--f-sig); background: var(--f-sigsoft); }
.f-demo-chk input { flex: none; width: 16px; height: 16px; margin: 0; accent-color: var(--f-sig); }

/* Preferencia horaria con aspecto de huecos de agenda (radios reales). */
.f-demo-slots { margin: 0; padding: 0; border: 1px solid var(--f-line2); background: var(--f-bg); min-width: 0; }
.f-demo-slots__head {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 12px; width: 100%;
  float: inline-start; padding: 12px 16px; border-bottom: 1px solid var(--f-line); font-size: 13.5px;
}
.f-demo-slots__grid { clear: both; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(140px, 100%), 1fr)); gap: 8px; padding: 12px; }
.f-demo-slot__radio { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.f-demo-slot {
  display: flex; flex-direction: column; gap: 2px; justify-content: center; min-height: 56px; padding: 8px 12px;
  border: 1px solid var(--f-line); cursor: pointer; transition: border-color 0.2s ease, background-color 0.2s ease;
}
.f-demo-slot:hover { border-color: var(--f-line2); }
.f-demo-slot__t { font-size: 15px; }
.f-demo-slot__h { color: var(--f-grey); }
.f-demo-slot__radio:checked + .f-demo-slot { border-color: var(--f-sig); background: var(--f-sigsoft); }
.f-demo-slot__radio:focus-visible + .f-demo-slot { outline: 2px solid var(--f-sig); outline-offset: 2px; }
.f-demo-slots__foot { padding: 10px 16px; border-top: 1px solid var(--f-line); font-family: var(--f-font-mono); text-transform: uppercase; letter-spacing: 0.06em; font-size: 10.5px; color: var(--f-grey); }

.f-demo-consent { display: flex; align-items: flex-start; gap: 12px; min-height: 44px; font-size: 14.5px; line-height: 1.5; color: var(--f-ink2); cursor: pointer; }
.f-demo-consent input { flex: none; width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--f-sig); }
.f-demo-consent a { color: var(--f-ink); border-bottom: 1px solid var(--f-line2); }

.f-demo-submit { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; padding-top: 22px; border-top: 1px solid var(--f-line); }
.f-demo-submit__note { flex: 1 1 260px; font-size: 13px; line-height: 1.5; color: var(--f-grey); }
@media (max-width: 479px) {
  .f-demo-submit .f-btn { width: 100%; justify-content: space-between; }
}

/* ------------------------------------------------------------------ Columna derecha */
.f-demo-side { display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.f-demo-agenda { border: 1px solid var(--f-line2); background: var(--f-bg); }
.f-demo-agenda__head {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--f-line);
  font-family: var(--f-font-mono); text-transform: uppercase; letter-spacing: 0.06em; font-size: 10.5px; font-weight: 400; color: var(--f-grey);
}
.f-demo-agenda__item { position: relative; display: grid; grid-template-columns: 88px minmax(0, 1fr); border-bottom: 1px solid var(--f-line); }
.f-demo-agenda__item:last-child { border-bottom: 0; }
.f-demo-agenda__k { padding: 16px; white-space: nowrap; border-inline-end: 1px solid var(--f-line); color: var(--f-grey); font-size: 11px; }
.f-demo-agenda__c { display: flex; flex-direction: column; gap: 4px; padding: 16px; }
.f-demo-agenda__t { font-size: 16px; }
.f-demo-agenda__d { font-size: 14px; line-height: 1.45; color: var(--f-grey); }
.f-demo-agenda__bar { position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--f-sig); }

/* ------------------------------------------------------------------ Confirmación */
.f-demo-sent { display: flex; flex-direction: column; gap: 24px; }