/* =====================================================================
   funnel.css — embudos públicos (/f/...): landing, calculadora, formulario
   por pasos, calendario y agradecimiento. Usa las variables de base.css y
   --brand / --brand-ink de la empresa.
   ===================================================================== */

body.funnel { background: var(--bg); }
.funnel main { padding: 0 16px 40px; }

/* Encabezado y pie */
.fn-top { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 16px; background: rgba(237, 241, 247, .88); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.fn-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; }
.fn-brand img { max-height: 38px; max-width: 160px; object-fit: contain; }
.fn-brand .brand__mark { width: 36px; height: 36px; border-radius: 11px; background: var(--brand); }
.fn-foot { padding: 28px 16px 36px; color: var(--muted); font-size: .8rem; text-align: center; }
.fn-foot p { margin: 0 auto 6px; max-width: 640px; }
.fn-foot__legal { color: var(--subtle); font-size: .74rem; }
.funnel--form .fn-top .btn, .funnel--calendar .fn-top .btn { display: none; }

/* Secciones */
.fn-section { max-width: 1120px; margin: 0 auto; padding: 36px 0 0; }
.fn-section--narrow { max-width: 780px; }
.fn-section__head { max-width: 680px; margin: 0 auto 22px; text-align: center; }
.fn-section__head h2 { margin-bottom: 8px; font-size: clamp(1.5rem, 1.6vw + 1rem, 2.2rem); letter-spacing: -.03em; }
.fn-section__head p { margin: 0; color: var(--muted); font-size: 1rem; }

/* Hero */
.fn-hero { display: grid; gap: 26px; max-width: 1120px; margin: 0 auto; padding: 28px 0 8px; }
.fn-hero__title { margin: 6px 0 14px; font-size: clamp(2rem, 3.6vw + 1rem, 3.6rem); line-height: 1.08; letter-spacing: -.04em; }
.fn-hero__title .mark { background: var(--brand); }
.fn-hero__sub { max-width: 560px; margin: 0 0 22px; color: var(--muted); font-size: clamp(1rem, .4vw + .95rem, 1.15rem); }
.fn-hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; }
.fn-hero__note { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: .86rem; font-weight: 600; }
.fn-checks { display: grid; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; font-size: .92rem; font-weight: 600; }
.fn-checks li { display: flex; align-items: flex-start; gap: 8px; }
.fn-checks .ico { width: 20px; height: 20px; padding: 3px; border-radius: 50%; background: var(--brand); color: var(--ink); stroke-width: 3; }
.fn-checks--light { color: rgba(255, 255, 255, .85); }
.fn-hero__card {
  position: relative;
  isolation: isolate;
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 26px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--brand-ink);
  color: #fff;
  box-shadow: var(--shadow);
}
.fn-hero__card > *:not(.deco) { position: relative; z-index: 1; }
.fn-hero__card .eyebrow { justify-self: start; }
.fn-hero__stat { font-size: clamp(2.6rem, 3vw + 1.5rem, 3.8rem); line-height: 1; letter-spacing: -.04em; }
.fn-hero__card p { margin: 0; color: rgba(255, 255, 255, .78); }
.fn-hero__card small { color: var(--brand); font-weight: 700; }
.fn-hero__tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 14px; color: var(--ink); }

/* Problema / beneficios / casos / testimonios */
.fn-tiles { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.fn-tile { min-height: 0; gap: 8px; }
.fn-tile .tile__icon { margin: 0 0 6px; }
.fn-tile strong { font-size: 1.02rem; }
.fn-tile p { margin: 0; color: var(--muted-on-tone); font-size: .9rem; }
.fn-benefits { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.fn-benefit { position: relative; display: grid; gap: 10px; align-content: start; }
.fn-benefit .auto-card__icon { justify-self: start; }
.fn-benefit h3 { margin: 4px 0 0; font-size: 1.08rem; }
.fn-benefit p { margin: 0; color: var(--muted); font-size: .92rem; }
.fn-benefit__num { position: absolute; top: 18px; right: 22px; color: var(--line); font-size: 2rem; font-weight: 800; line-height: 1; }
.fn-cases { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }
.fn-case { min-height: 200px; gap: 8px; }
.fn-case__result { margin-top: 20px !important; font-size: 1.5rem !important; letter-spacing: -.02em; }
.fn-case p { margin: 0; opacity: .85; font-size: .9rem; }
.fn-quotes { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }
.fn-quote { margin: 0; display: grid; gap: 16px; }
.fn-quote blockquote { margin: 0; font-size: 1.05rem; font-weight: 600; line-height: 1.5; }
.fn-quote figcaption { display: flex; align-items: center; gap: 10px; }
.fn-quote figcaption span:last-child { display: grid; }
.fn-quote small { color: var(--muted); font-size: .8rem; }

.fn-guarantee { display: grid; justify-items: center; gap: 12px; padding: clamp(28px, 5vw, 48px); text-align: center; }
.fn-guarantee h2 { margin: 0; font-size: clamp(1.6rem, 2vw + 1rem, 2.4rem); line-height: 1.3; }
.fn-guarantee p { max-width: 620px; margin: 0; color: rgba(255, 255, 255, .78); }
.fn-guarantee__icon { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 18px; background: var(--brand); color: var(--ink); }
.fn-guarantee__icon .ico { width: 26px; height: 26px; }
.fn-guarantee .fn-checks { justify-content: center; grid-template-columns: repeat(auto-fit, minmax(180px, max-content)); }

.fn-faq { display: grid; gap: 10px; }
.fn-faq__item { padding: 0; }
.fn-faq__item summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 22px; font-weight: 800; cursor: pointer; list-style: none; }
.fn-faq__item summary::-webkit-details-marker { display: none; }
.fn-faq__item summary .ico { transition: transform .2s; }
.fn-faq__item[open] summary .ico { transform: rotate(180deg); }
.fn-faq__item p { margin: 0; padding: 0 22px 20px; color: var(--muted); }

.fn-cta { display: grid; justify-items: center; gap: 10px; padding: clamp(28px, 5vw, 48px) 20px; border-radius: var(--radius-xl); background: var(--brand); text-align: center; }
.fn-cta h2, .fn-cta h1 { margin: 0; font-size: clamp(1.5rem, 1.8vw + 1rem, 2.3rem); letter-spacing: -.03em; }
.fn-cta p { max-width: 560px; margin: 0 0 8px; color: var(--muted-on-tone); }

.fn-video { position: relative; overflow: hidden; border-radius: var(--radius-lg); aspect-ratio: 16 / 9; background: var(--ink); box-shadow: var(--shadow); }
.fn-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* Calculadora */
.fn-calc { display: grid; gap: 16px; padding: clamp(18px, 3vw, 28px); border-radius: var(--radius-xl); background: var(--surface); box-shadow: var(--shadow-sm); }
.fn-calc__inputs { display: grid; gap: 16px; align-content: start; }
.fn-calc__inputs h2 { margin: 0; font-size: clamp(1.4rem, 1.4vw + 1rem, 2rem); letter-spacing: -.03em; }
.fn-calc__inputs > p { margin: -6px 0 0; color: var(--muted); }
.field .fn-calc__range, .fn-calc input[type="range"] { width: 100%; min-height: 0 !important; height: 28px; padding: 0 !important; border: 0 !important; background: none !important; box-shadow: none !important; accent-color: var(--ink); -webkit-appearance: auto !important; appearance: auto !important; }
.fn-calc__result { display: grid; align-content: center; justify-items: start; gap: 6px; padding: clamp(22px, 3vw, 30px); }
.fn-calc__amount { font-size: clamp(2.2rem, 3vw + 1.2rem, 3.4rem); line-height: 1; letter-spacing: -.04em; }
.fn-calc__per { color: rgba(255, 255, 255, .6); font-weight: 700; }
.fn-calc__result p { margin: 8px 0 12px; color: rgba(255, 255, 255, .78); font-size: .9rem; }
.fn-calc__result strong { color: #fff; }

/* Formulario por pasos */
.fn-form-intro { display: grid; justify-items: center; gap: 4px; max-width: 680px; margin: 18px auto 16px; text-align: center; }
.fn-form-intro p { margin: 0; color: var(--muted); }
.fn-form-intro .eyebrow { margin-bottom: 6px; }
.fn-thanks__title { margin: 6px 0; font-size: clamp(1.6rem, 2vw + 1rem, 2.4rem); letter-spacing: -.03em; }
.fn-steps { max-width: 680px; margin: 0 auto; }
.fn-stepper { padding: clamp(20px, 4vw, 34px); }
.fn-stepper__top { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.fn-stepper__count { flex-shrink: 0; color: var(--muted); font-size: .8rem; font-weight: 800; }
.fn-progress { flex: 1; height: 8px; overflow: hidden; border-radius: 999px; background: var(--surface-3); }
.fn-progress span { display: block; height: 100%; border-radius: inherit; background: var(--brand); transition: width .35s var(--ease); }
.fn-step { margin: 0; padding: 0; border: 0; animation: fn-in .35s var(--ease); }
.fn-step__q { display: block; margin: 0 0 6px; padding: 0; font-size: clamp(1.3rem, 1.2vw + 1rem, 1.75rem); font-weight: 800; letter-spacing: -.02em; line-height: 1.25; }
.fn-step__help { margin: 0 0 14px; color: var(--muted); font-size: .9rem; }
.fn-options { display: grid; gap: 10px; margin-top: 16px; }
.fn-option { position: relative; display: block; cursor: pointer; }
.fn-option input { position: absolute; opacity: 0; pointer-events: none; }
.fn-option span {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 2px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-weight: 700;
  transition: border-color .15s, background-color .15s, transform .15s var(--ease);
}
.fn-option b { display: grid; place-items: center; flex-shrink: 0; width: 28px; height: 28px; border: 1.5px solid var(--line); border-radius: 8px; color: var(--muted); font-size: .76rem; }
.fn-option:hover span { border-color: #cdd2dc; }
.fn-option input:checked + span { border-color: var(--ink); background: color-mix(in srgb, var(--brand) 20%, #fff); }
.fn-option input:checked + span b { border-color: var(--ink); background: var(--ink); color: #fff; }
.fn-option input:focus-visible + span { box-shadow: 0 0 0 4px var(--sky); }
.fn-step .field input { font-size: 1.05rem; min-height: 52px; }
.fn-step__nav { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 20px; }
.fn-step__hint { color: var(--subtle); font-size: .8rem; }
.fn-step__hint kbd { padding: 1px 6px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface-2); font-family: inherit; font-size: .74rem; }
.fn-privacy { align-items: flex-start; font-size: .84rem; font-weight: 500; color: var(--muted); }
.fn-privacy input { margin-top: 2px; }

/* Calendario y confirmaciones */
.fn-booking-wrap { display: grid; place-items: start center; }
.fn-booking { margin: 0 auto; }
.fn-done { display: grid; justify-items: center; gap: 10px; max-width: 560px; margin: 24px auto; padding: 32px 24px; text-align: center; }
.fn-done h1, .fn-done h2 { margin: 4px 0; font-size: 1.5rem; }

@keyframes fn-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

@media (min-width: 640px) {
  .funnel main { padding: 0 24px 56px; }
  .fn-top { padding: 14px 24px; }
  .fn-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fn-benefits { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fn-quotes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fn-options:has(.fn-option:nth-child(5)) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 960px) {
  .fn-hero { grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); align-items: center; gap: 40px; padding: 48px 0 16px; }
  .fn-section { padding-top: 64px; }
  .fn-tiles { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .fn-cases { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .fn-calc { grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); gap: 28px; }
}