/* ==========================================================================
   Jorge Rodríguez Sánchez | Quiropráctico y osteópata
   Sistema de diseño "Noche clínica": azul índigo de la marca + azul cielo.
   Mobile first. Un solo tema (oscuro) y un solo color de acento.

   Reglas del sistema
   - Radios: botones y chips = pill, tarjetas = 28px, campos = 16px.
   - Acento único: --sky. El índigo solo se usa como profundidad de fondo.
   - Animaciones solo con transform y opacity (salvo clip-path puntual).
   - Todo movimiento respeta prefers-reduced-motion.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --ink-950: #04061a;
  --ink-900: #070a26;
  --ink-850: #0a0f33;
  --ink-800: #0e1442;
  --ink-700: #161d5a;
  --indigo: #2b2d8f;      /* color del logotipo */
  --indigo-hi: #3a3fc0;
  --sky: #4db4f6;         /* único acento */
  --sky-hi: #76c7fa;
  --text: #eaf1ff;
  --dim: #a9b5de;
  --faint: #7684b8;
  --line: rgba(166, 219, 252, .14);
  --line-2: rgba(166, 219, 252, .28);

  --r-card: 28px;
  --r-field: 16px;
  --r-pill: 999px;

  --gutter: clamp(1rem, 4vw, 2rem);
  --header-h: 64px;

  --ease: cubic-bezier(.16, 1, .3, 1);
  --ease-io: cubic-bezier(.65, 0, .35, 1);

  --f-display: "Outfit", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-body: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Escala de capas */
  --z-menu: 45;
  --z-header: 50;
  --z-fab: 55;
  --z-progress: 70;
  --z-preloader: 100;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background: var(--ink-900);
  color-scheme: dark;
}
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--text);
  font: 400 1rem/1.65 var(--f-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
body.is-loading { overflow: hidden; animation: unlock 0s 8s forwards; }
/* sin JavaScript no hay preloader ni bloqueo de scroll */
.no-js .preloader { display: none; }
.no-js body.is-loading { overflow: visible; animation: none; }
body.menu-open { overflow: hidden; }
@keyframes unlock { to { overflow: visible; } }

img, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
[hidden] { display: none !important; }
::selection { background: var(--sky); color: var(--ink-950); }

:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; border-radius: 6px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; left: 1rem; top: -4rem; z-index: 200;
  padding: .8rem 1.2rem; border-radius: var(--r-pill);
  background: var(--sky); color: var(--ink-950); font-weight: 600;
  transition: top .3s var(--ease);
}
.skip-link:focus { top: 1rem; }

.icon { width: 1.25em; height: 1.25em; fill: currentColor; flex: none; }
.container { width: min(100% - 2 * var(--gutter), 1240px); margin-inline: auto; }

/* ---------- 3. Tipografía ---------- */
.h2 {
  font: 600 clamp(2.1rem, 1.2rem + 3.6vw, 4.2rem)/1.03 var(--f-display);
  letter-spacing: -.03em;
  text-wrap: balance;
}
.lead {
  font-size: clamp(1.05rem, 1rem + .4vw, 1.25rem);
  color: var(--dim);
  max-width: 38rem;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: .75rem;
  font: 500 .78rem/1 var(--f-body);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--sky);
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .7; }

/* ---------- 4. Botones ---------- */
.btn {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: .7rem;
  min-height: 52px; padding: .95rem 1.7rem;
  border-radius: var(--r-pill);
  font: 600 1rem/1.2 var(--f-body);
  text-align: center;
  transition: transform .35s var(--ease), box-shadow .4s var(--ease), color .3s, border-color .3s;
}
/* relleno que nace desde el punto exacto donde entra el cursor */
.btn::before {
  content: ""; position: absolute; z-index: -1;
  left: var(--bx, 50%); top: var(--by, 50%);
  width: 260%; aspect-ratio: 1; border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform .7s var(--ease);
}
.btn:hover::before, .btn:focus-visible::before { transform: translate(-50%, -50%) scale(1); }
.btn:active { scale: .97; }
.btn .icon { transition: transform .4s var(--ease); }
.btn:hover .icon { transform: translateX(3px); }

.btn--primary {
  background: var(--sky); color: var(--ink-950);
  box-shadow: 0 14px 36px -12px rgba(77, 180, 246, .7), inset 0 1px 0 rgba(255, 255, 255, .45);
}
.btn--primary::before { background: #d7eeff; }
.btn--primary:hover { box-shadow: 0 18px 44px -10px rgba(77, 180, 246, .85), inset 0 1px 0 rgba(255, 255, 255, .6); }

.btn--ghost {
  color: var(--text);
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, .03);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.btn--ghost::before { background: rgba(77, 180, 246, .2); }
.btn--ghost:hover { border-color: var(--sky); }

.btn--sm { min-height: 44px; padding: .65rem 1.25rem; font-size: .92rem; }
.btn--block { width: 100%; }

@media (min-width: 640px) { .btn { white-space: nowrap; } }

/* ---------- 5. Preloader ---------- */
.preloader {
  position: fixed; inset: 0; z-index: var(--z-preloader);
  display: grid; place-items: center;
  animation: failsafe 0s 8s forwards;
}
@keyframes failsafe { to { visibility: hidden; pointer-events: none; } }

.preloader__panel {
  position: absolute; left: 0; right: 0; height: 50.5%;
  background: var(--ink-950);
  transition: transform 1.15s var(--ease-io);
}
.preloader__panel--top { top: 0; background: radial-gradient(90% 140% at 50% 100%, #10185a 0%, var(--ink-950) 70%); }
.preloader__panel--bottom { bottom: 0; background: radial-gradient(90% 140% at 50% 0%, #10185a 0%, var(--ink-950) 70%); }
.preloader.is-done .preloader__panel--top { transform: translateY(-101%); }
.preloader.is-done .preloader__panel--bottom { transform: translateY(101%); }

.preloader__core {
  position: relative; display: grid; justify-items: center; gap: .9rem;
  padding-top: 0;
  transition: opacity .5s, transform .9s var(--ease);
}
.preloader.is-done .preloader__core { opacity: 0; transform: scale(.88); }

.preloader__orbit {
  position: absolute; top: 0; left: 50%;
  width: 200px; height: 200px; margin-left: -100px;
  border-radius: 50%;
  border: 1.5px solid rgba(166, 219, 252, .1);
  border-top-color: var(--sky);
  border-right-color: rgba(77, 180, 246, .35);
  animation: spin 1.5s cubic-bezier(.55, .15, .45, .85) infinite;
}
.preloader__spine {
  display: grid; align-content: center; justify-items: center; gap: 5px;
  width: 200px; height: 200px;
}
.preloader__spine i {
  display: block; width: calc(var(--s) * 20px); aspect-ratio: 1; border-radius: 50%;
  background: rgba(77, 180, 246, .16);
  animation: vertebra 1.6s ease-in-out infinite;
}
.preloader__spine i:nth-child(1) { animation-delay: 0s; }
.preloader__spine i:nth-child(2) { animation-delay: .12s; }
.preloader__spine i:nth-child(3) { animation-delay: .24s; }
.preloader__spine i:nth-child(4) { animation-delay: .36s; }
.preloader__spine i:nth-child(5) { animation-delay: .48s; }
.preloader__spine i:nth-child(6) { animation-delay: .6s; }
.preloader__spine i:nth-child(7) { animation-delay: .72s; }
@keyframes vertebra {
  0%, 100% { background: rgba(77, 180, 246, .16); transform: scale(1); box-shadow: none; }
  35% { background: var(--sky); transform: scale(1.2); box-shadow: 0 0 24px rgba(77, 180, 246, .75); }
  60% { background: rgba(77, 180, 246, .4); transform: scale(1.04); box-shadow: none; }
}
@keyframes spin { to { transform: rotate(360deg); } }

.preloader__count {
  display: flex; align-items: baseline; gap: .15rem;
  font: 600 3.4rem/1 var(--f-display); letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
}
.preloader__count small { font-size: 1.1rem; color: var(--sky); font-weight: 500; }
.preloader__label { font-size: .92rem; color: var(--dim); }
.preloader__bar { width: 180px; height: 2px; border-radius: 2px; background: var(--line); overflow: hidden; }
.preloader__bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--indigo-hi), var(--sky)); transform-origin: left; transform: scaleX(0); }

/* ---------- 6. Progreso de lectura ---------- */
.progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: var(--z-progress); pointer-events: none; }
.progress span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--indigo-hi), var(--sky), var(--sky-hi));
  transform-origin: left; transform: scaleX(0);
}

/* ---------- 7. Header y menú ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: var(--z-header);
  padding: .75rem var(--gutter) 0;
  pointer-events: none;
  transition: transform 1s var(--ease) .5s;
}
html.fx:not(.is-ready) .site-header { transform: translateY(-140%); }

.site-header__bar {
  pointer-events: auto;
  width: min(100%, 1240px); height: var(--header-h); margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0 .6rem 0 .9rem;
  border-radius: var(--r-pill);
  background: rgba(7, 10, 38, .45);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px) saturate(160%); -webkit-backdrop-filter: blur(18px) saturate(160%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06), 0 18px 50px -22px rgba(0, 0, 0, .7);
  transition: background .5s, border-color .5s;
}
.is-scrolled .site-header__bar { background: rgba(7, 10, 38, .8); border-color: var(--line-2); }
@media (prefers-reduced-transparency: reduce) {
  .site-header__bar { background: var(--ink-850); backdrop-filter: none; -webkit-backdrop-filter: none; }
}

.brand { display: flex; align-items: center; gap: .75rem; min-width: 0; }
.brand__mark {
  width: 44px; height: 44px; padding: 4px; flex: none;
  border-radius: 50%; border: 1.5px solid var(--line-2);
  background: rgba(77, 180, 246, .08);
  color: var(--sky); fill: currentColor;
}
.brand__text { display: grid; line-height: 1.15; min-width: 0; }
.brand__text strong { font: 600 1rem var(--f-display); letter-spacing: -.01em; white-space: nowrap; }
.brand__text small { display: none; font-size: .72rem; color: var(--dim); letter-spacing: .03em; white-space: nowrap; }
@media (min-width: 420px) { .brand__text small { display: block; } }

.nav { display: none; }
.nav__cta { display: none; }
@media (min-width: 640px) { .nav__cta { display: inline-flex; } }
@media (min-width: 1000px) {
  .nav { display: flex; gap: .15rem; }
  .nav a {
    padding: .6rem .95rem; border-radius: var(--r-pill);
    font-size: .93rem; color: var(--dim);
    transition: color .3s, background .3s;
  }
  .nav a:hover, .nav a.is-active { color: var(--text); background: rgba(166, 219, 252, .09); }
  .burger { display: none; }
}

.burger {
  position: relative; width: 44px; height: 44px; flex: none;
  border-radius: 50%; border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, .04);
}
.burger span {
  position: absolute; left: 13px; right: 13px; height: 2px; border-radius: 2px;
  background: var(--text);
  transition: transform .5s var(--ease), top .5s var(--ease);
}
.burger span:nth-child(1) { top: 17px; }
.burger span:nth-child(2) { top: 25px; }
.burger[aria-expanded="true"] span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { top: 21px; transform: rotate(-45deg); }

.menu {
  position: fixed; inset: 0; z-index: var(--z-menu);
  display: flex; flex-direction: column; justify-content: center; gap: 2rem;
  padding: 6rem var(--gutter) 3rem;
  background: radial-gradient(120% 90% at 100% 0%, #141c68 0%, var(--ink-950) 62%);
  clip-path: circle(0 at calc(100% - 40px) 40px);
  visibility: hidden;
  transition: clip-path .9s var(--ease-io), visibility 0s .9s;
}
.menu.is-open { clip-path: circle(150% at calc(100% - 40px) 40px); visibility: visible; transition: clip-path .9s var(--ease-io), visibility 0s 0s; }
.menu__nav { display: grid; gap: .2rem; }
.menu__nav a, .menu__cta {
  opacity: 0; transform: translateY(26px);
  transition: opacity .6s var(--ease), transform .8s var(--ease);
}
.menu.is-open .menu__nav a, .menu.is-open .menu__cta {
  opacity: 1; transform: none;
  transition-delay: calc(.25s + var(--i, 0) * 70ms);
}
.menu__nav a {
  padding: .5rem 0;
  font: 600 clamp(2.2rem, 9vw, 3.2rem)/1.1 var(--f-display); letter-spacing: -.03em;
  border-bottom: 1px solid var(--line);
}
.menu__cta { align-self: flex-start; }

/* ---------- 8. Reveals (el contenido es visible si no hay JS) ---------- */
html.fx [data-reveal] {
  opacity: 0; transform: translateY(34px);
  transition: opacity 1s var(--ease), transform 1.1s var(--ease);
  transition-delay: calc(var(--i, 0) * 90ms);
}
html.fx [data-reveal].is-in { opacity: 1; transform: none; }

.is-split .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .16em; margin-bottom: -.16em; }
.is-split .wi { display: inline-block; transform: translateY(112%); transition: transform 1.1s var(--ease); transition-delay: calc(var(--i, 0) * 55ms); }
.is-split.is-in .wi { transform: none; }

/* ---------- 9. Hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden; overflow: clip;
  min-height: 100dvh; display: grid;
  background: radial-gradient(110% 80% at 72% 28%, #111a5e 0%, var(--ink-900) 58%, var(--ink-950) 100%);
}
.hero__canvas { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; transition: opacity 1.8s ease .4s; }
html.fx:not(.is-ready) .hero__canvas { opacity: 0; }

.hero__aurora { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.hero__aurora i { position: absolute; border-radius: 50%; will-change: transform; }
.hero__aurora i:nth-child(1) {
  width: 70vmax; height: 70vmax; left: -28vmax; top: -30vmax;
  background: radial-gradient(closest-side, rgba(58, 63, 192, .5), transparent 70%);
  animation: drift-a 24s ease-in-out infinite alternate;
}
.hero__aurora i:nth-child(2) {
  width: 62vmax; height: 62vmax; right: -28vmax; bottom: -26vmax;
  background: radial-gradient(closest-side, rgba(77, 180, 246, .26), transparent 70%);
  animation: drift-b 28s ease-in-out infinite alternate;
}
.hero__aurora i:nth-child(3) {
  width: 44vmax; height: 44vmax; left: 38%; top: 22%;
  background: radial-gradient(closest-side, rgba(43, 45, 143, .55), transparent 70%);
  animation: drift-c 20s ease-in-out infinite alternate;
}
@keyframes drift-a { to { transform: translate3d(10vmax, 8vmax, 0) scale(1.15); } }
@keyframes drift-b { to { transform: translate3d(-12vmax, -6vmax, 0) scale(1.1); } }
@keyframes drift-c { to { transform: translate3d(-8vmax, 10vmax, 0) scale(.85); } }

/* luz que sigue al puntero */
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(520px circle at var(--mx, 70%) var(--my, 35%), rgba(77, 180, 246, .12), transparent 62%);
}
/* transición suave hacia la siguiente sección */
.hero::before {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 20%; z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom, transparent, var(--ink-900));
}

.hero__inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr; grid-template-rows: minmax(250px, 1fr) auto;
  padding-top: calc(var(--header-h) + 1.5rem);
  padding-bottom: clamp(2.5rem, 7vh, 4rem);
  min-height: 100dvh;
}
.hero__stage { grid-row: 1; grid-column: 1; min-height: 230px; }
/* en móvil se reserva espacio para que el botón flotante no tape el CTA secundario */
@media (max-width: 899px) { .hero__inner { padding-bottom: calc(62px + 2.2rem); } }
.hero__copy { grid-row: 2; grid-column: 1; display: grid; gap: 1.2rem; justify-items: start; }

.hero__title {
  font: 600 clamp(3.1rem, 2rem + 6.4vw, 7.2rem)/.94 var(--f-display);
  letter-spacing: -.045em;
}
.line { display: block; overflow: hidden; padding-bottom: .12em; margin-bottom: -.12em; }
.line__in { display: inline-block; will-change: transform; transition: transform 1.3s var(--ease); }
.line__in--accent { color: var(--sky); }
.line__in[data-intro="2"] { transition-delay: .15s; }
.line__in[data-intro="3"] { transition-delay: .3s; }
html.fx:not(.is-ready) .line__in { transform: translateY(112%); }

.hero__lead { font-size: clamp(1.05rem, 1rem + .5vw, 1.3rem); color: var(--dim); max-width: 32rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .8rem; width: 100%; }
.hero__actions .btn { flex: 1 1 100%; }
@media (min-width: 520px) { .hero__actions .btn { flex: 0 0 auto; } }

[data-intro]:not(.line__in) { transition: opacity 1s var(--ease), transform 1.1s var(--ease); }
[data-intro="1"] { transition-delay: .1s !important; }
[data-intro="4"] { transition-delay: .55s !important; }
[data-intro="5"] { transition-delay: .7s !important; }
html.fx:not(.is-ready) [data-intro]:not(.line__in) { opacity: 0; transform: translateY(28px); }

@media (min-width: 900px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    grid-template-rows: 1fr; align-items: center;
    padding-top: calc(var(--header-h) + 2rem);
  }
  .hero__copy { grid-column: 1; grid-row: 1; gap: 1.6rem; }
  .hero__stage { grid-column: 2; grid-row: 1; height: min(74dvh, 720px); }
}

/* anotaciones sobre la columna 3D */
.hud-layer { display: none; position: absolute; inset: 0; z-index: 3; pointer-events: none; }
@media (min-width: 900px) { .hud-layer { display: block; } .no-js .hud-layer { display: none; } }
.hud {
  position: absolute; left: 0; top: 0; pointer-events: auto;
  display: grid; gap: .05rem; padding: .5rem .95rem .55rem;
  border-radius: 16px; border: 1px solid var(--line-2);
  background: rgba(7, 10, 38, .6);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transform: translate(var(--x, 0px), var(--y, 0px));
  transition: opacity 1s ease 1.6s, border-color .3s, background .3s;
}
html.fx:not(.is-ready) .hud { opacity: 0; }
.hud b { font: 600 .92rem/1.2 var(--f-display); }
.hud span { font-size: .74rem; color: var(--dim); letter-spacing: .05em; }
.hud::before {
  content: ""; position: absolute; right: 100%; top: 50%; height: 1px; width: var(--leader, 48px);
  background: linear-gradient(90deg, transparent, var(--sky));
}
.hud:hover { border-color: var(--sky); background: rgba(77, 180, 246, .18); transition-delay: 0s; }

/* ---------- 10. Marquee ---------- */
.marquee {
  position: relative; overflow: hidden;
  padding-block: clamp(1.3rem, 3vw, 2.2rem);
  border-block: 1px solid var(--line);
  background: var(--ink-900);
}
.marquee__track { display: flex; width: max-content; animation: marquee 42s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__list { display: flex; flex: none; gap: clamp(2rem, 5vw, 4.5rem); padding-right: clamp(2rem, 5vw, 4.5rem); }
.marquee__list li {
  font: 500 clamp(1.9rem, 1.2rem + 3vw, 3.7rem)/1.1 var(--f-display);
  letter-spacing: -.02em; white-space: nowrap;
}
/* Contorno limpio: el trazo se pinta debajo del relleno (color de fondo), así no se ven
   los contornos internos que dejan las fuentes variables al solaparse */
.marquee__list li.is-outline {
  color: var(--ink-900);
  -webkit-text-stroke: 2.4px var(--sky);
  paint-order: stroke fill;
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 11. Filosofía y cifras ---------- */
.manifesto {
  padding-block: clamp(5rem, 12vw, 10rem) clamp(4rem, 8vw, 7rem);
  background: linear-gradient(var(--ink-900), var(--ink-850));
}
.manifesto__text {
  font: 500 clamp(1.7rem, 1rem + 3.6vw, 3.7rem)/1.17 var(--f-display);
  letter-spacing: -.025em; max-width: 21em; text-wrap: balance;
}
.manifesto__text em { font-style: normal; color: var(--sky); }
/* inline (no inline-block): así la puntuación pegada a una palabra nunca queda sola al inicio de línea */
.manifesto__text.is-words .mw { opacity: .16; }

.stats {
  display: grid; gap: 2.5rem; margin-top: clamp(3.5rem, 8vw, 7rem);
  padding-top: 2.5rem; border-top: 1px solid var(--line);
}
.stat__num { font: 600 clamp(3.6rem, 2rem + 6.4vw, 7rem)/.9 var(--f-display); letter-spacing: -.03em; }
.stat__label { margin-top: .7rem; color: var(--dim); max-width: 17rem; }
@media (min-width: 800px) { .stats { grid-template-columns: 1.15fr 1fr .9fr; gap: 3rem; } }

/* ---------- 12. Imagen que se expande ---------- */
.expand { position: relative; background: var(--ink-850); }
.expand__pin { position: relative; height: 100svh; min-height: 560px; overflow: hidden; }
.expand__frame { position: absolute; inset: 0; overflow: hidden; will-change: clip-path; }
.expand__img { width: 100%; height: 100%; object-fit: cover; will-change: transform; }
.expand__shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 6, 26, .7) 0%, rgba(4, 6, 26, .12) 38%, rgba(4, 6, 26, .9) 100%),
    linear-gradient(90deg, rgba(14, 20, 66, .55), transparent 62%);
}
.expand__content {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; justify-content: space-between;
  padding-block: calc(var(--header-h) + 2.5rem) clamp(2rem, 6vh, 4rem);
}
.expand__title {
  font: 600 clamp(2.4rem, 1.2rem + 5vw, 5.8rem)/.98 var(--f-display);
  letter-spacing: -.035em; max-width: 11em; text-wrap: balance;
}
.expand__copy { display: grid; gap: 1.5rem; justify-items: start; max-width: 34rem; }
.expand__copy p { font-size: clamp(1.05rem, 1rem + .4vw, 1.3rem); color: #dbe6ff; }

/* ---------- 13. Secciones ---------- */
.section { position: relative; padding-block: clamp(5rem, 11vw, 9.5rem); }
.section__head { display: grid; gap: 1.1rem; max-width: 46rem; margin-bottom: clamp(2.5rem, 6vw, 4.5rem); }
.section__cta { display: flex; justify-content: center; margin-top: clamp(2.5rem, 6vw, 4rem); }

/* ---------- 14. Servicios (bento) ---------- */
.services {
  background: var(--ink-900);
}
.services::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 40% at 90% 0%, rgba(77, 180, 246, .1), transparent 70%);
}
.bento { position: relative; display: grid; gap: 14px; grid-template-columns: 1fr; }

.cell {
  position: relative; isolation: isolate; overflow: hidden;
  display: flex; align-items: flex-end;
  min-height: 340px;
  border-radius: var(--r-card); border: 1px solid var(--line);
  background: var(--ink-800);
}
.cell__img {
  position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover;
  filter: saturate(.85) contrast(1.02);
  transition: transform 1.4s var(--ease);
}
.cell:hover .cell__img { transform: scale(1.06); }
.cell__shade {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(7, 10, 38, .1) 0%, rgba(7, 10, 38, .55) 48%, rgba(4, 6, 26, .94) 100%),
    linear-gradient(135deg, rgba(43, 45, 143, .4), transparent 60%);
}
/* foco de luz que sigue al cursor */
.cell::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .5s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(118, 199, 250, .2), transparent 62%);
}
.cell:hover::after { opacity: 1; }

.cell__body { position: relative; z-index: 1; display: grid; gap: .6rem; padding: clamp(1.3rem, 2.5vw, 2rem); max-width: 30rem; }
.cell__icon {
  width: 46px; height: 46px; padding: 11px; border-radius: 50%;
  color: var(--sky); border: 1px solid var(--line-2);
  background: rgba(7, 10, 38, .5);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.cell h3 { font: 600 clamp(1.35rem, 1.1rem + 1vw, 1.95rem)/1.1 var(--f-display); letter-spacing: -.02em; }
.cell p { color: #cfdaf7; font-size: .98rem; }

.cell--geriatrica {
  background:
    radial-gradient(circle at 85% 0%, rgba(77, 180, 246, .4), transparent 55%),
    linear-gradient(160deg, var(--indigo) 0%, var(--ink-800) 100%);
  min-height: 440px;
}
.cell--geriatrica .cell__img { object-position: 12% 50%; }

@media (min-width: 620px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .cell--ajustes, .cell--deporte { grid-column: span 2; }
  .cell { min-height: 320px; }
  .cell--ajustes { min-height: 420px; }
  .cell--geriatrica { min-height: 440px; }
}
@media (min-width: 960px) {
  .bento { grid-template-columns: repeat(12, 1fr); grid-auto-rows: 310px; grid-template-rows: 310px 310px 440px; }
  .cell { min-height: 0; }
  .cell--ajustes { grid-column: 1 / span 7; grid-row: 1 / span 2; }
  .cell--descargas { grid-column: 8 / span 5; grid-row: 1; }
  .cell--rehab { grid-column: 8 / span 5; grid-row: 2; }
  .cell--deporte { grid-column: 1 / span 4; grid-row: 3; }
  .cell--geriatrica { grid-column: 5 / span 4; grid-row: 3; }
  .cell--kine { grid-column: 9 / span 4; grid-row: 3; }
}

/* ---------- 15. Método (pila pegajosa) ---------- */
.method { background: var(--ink-850); }
.method::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(50% 35% at 0% 20%, rgba(58, 63, 192, .28), transparent 70%);
}
.method__grid { position: relative; display: grid; gap: 2.5rem; }
.method__intro { display: grid; gap: 1.3rem; justify-items: start; align-content: start; }
.method__stack { display: grid; }

.step {
  position: sticky;
  top: calc(var(--header-h) + 1.4rem + var(--n) * .9rem);
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}
.step__veil { position: absolute; inset: 0; background: var(--ink-950); opacity: 0; pointer-events: none; }
.step__in {
  position: relative; display: grid; overflow: hidden;
  border-radius: var(--r-card); border: 1px solid var(--line-2);
  background: linear-gradient(160deg, var(--ink-700), var(--ink-800));
  box-shadow: 0 34px 70px -34px rgba(0, 0, 0, .8);
  transform-origin: 50% 0;
}
.step__media { aspect-ratio: 16 / 10; overflow: hidden; }
.step__media img { width: 100%; height: 100%; object-fit: cover; }
.step__text { display: grid; align-content: start; gap: .7rem; padding: clamp(1.4rem, 3vw, 2.5rem); }
.step__icon {
  width: 46px; height: 46px; padding: 11px; border-radius: 50%;
  color: var(--sky); border: 1px solid var(--line-2); background: rgba(77, 180, 246, .08);
}
.step__verb { font: 600 clamp(2.3rem, 1.4rem + 3.2vw, 3.8rem)/1 var(--f-display); letter-spacing: -.035em; }
.step__lead { font: 500 1.15rem/1.3 var(--f-display); color: var(--sky); }
.step__text p:last-child { color: #cbd6f4; }

@media (min-width: 620px) {
  .step__in { grid-template-columns: .9fr 1.1fr; min-height: 430px; }
  .step__media { aspect-ratio: auto; }
}
@media (min-width: 960px) {
  .method__grid { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
  .method__intro { position: sticky; top: calc(var(--header-h) + 3rem); }
}

/* ---------- 16. Selector de zona ---------- */
.zones-section { background: var(--ink-900); }
.zones { display: grid; gap: 1.6rem; }
.zones__spine { display: grid; grid-template-columns: repeat(4, 1fr); gap: .4rem; }

.zone {
  display: grid; justify-items: center; align-content: start; gap: .7rem;
  padding: .9rem .2rem; border-radius: 20px; border: 1px solid transparent;
  transition: background .4s, border-color .4s;
}
.zone__dots { display: flex; align-items: center; justify-content: center; gap: 4px; --dot: 11px; min-height: 22px; }
.zone__dots i {
  display: block; width: calc(var(--dot) * var(--s)); aspect-ratio: 1; border-radius: 50%;
  background: rgba(166, 219, 252, .24);
  transition: background .5s, transform .6s var(--ease), box-shadow .6s;
}
.zone__label { display: grid; text-align: center; line-height: 1.2; }
.zone__label strong { font: 600 .86rem var(--f-display); }
.zone__label small { display: none; font-size: .74rem; color: var(--dim); }
.zone:hover .zone__dots i { background: rgba(118, 199, 250, .65); }
.zone.is-active { background: rgba(77, 180, 246, .09); border-color: var(--line-2); }
.zone.is-active .zone__dots i { background: var(--sky); box-shadow: 0 0 20px rgba(77, 180, 246, .55); transform: scale(1.1); }

/* ola de luz al entrar en la sección */
.zones.is-wave .zone__dots i { animation: wave 1.4s ease-in-out both; animation-delay: calc(var(--k, 0) * 70ms); }
@keyframes wave { 0%, 100% { filter: none; } 40% { filter: brightness(2.2); transform: scale(1.35); } }

.zones__panels { min-height: 340px; }
.zone-panel {
  display: grid; align-content: start; gap: 1.1rem;
  padding: clamp(1.4rem, 3vw, 2.6rem);
  border-radius: var(--r-card); border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(22, 29, 90, .75), rgba(10, 15, 51, .75));
  animation: panel-in .8s var(--ease) both;
}
@keyframes panel-in { from { opacity: 0; transform: translateY(22px); } }
.zone-panel h3 { font: 600 clamp(1.9rem, 1.3rem + 2.4vw, 3rem)/1 var(--f-display); letter-spacing: -.03em; }
.zone-panel__how { font-size: 1.1rem; max-width: 44ch; }
.zone-panel__title { font: 600 .95rem var(--f-body); color: var(--dim); margin-top: .4rem; }
.zone-panel .btn { justify-self: start; margin-top: .6rem; }

.ticks { display: grid; gap: .1rem; }
.ticks li { display: flex; align-items: flex-start; gap: .75rem; padding-block: .4rem; color: #d3ddf7; }
.ticks .icon { color: var(--sky); margin-top: .22em; }

@media (min-width: 900px) {
  .zones { grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr); gap: clamp(2rem, 6vw, 6rem); align-items: center; }
  .zones__spine { grid-template-columns: 1fr; gap: .45rem; }
  .zone {
    grid-template-columns: 64px 1fr; justify-items: start; align-items: center; align-content: center;
    gap: .6rem; text-align: left; padding: .95rem 1.2rem;
  }
  .zone__dots { flex-direction: column; gap: 5px; --dot: 21px; min-height: 0; }
  .zone__label { text-align: left; }
  .zone__label strong { font-size: 1.15rem; }
  .zone__label small { display: block; }
}

/* ---------- 17. Especialista (acordeón de imágenes) ---------- */
.disciplines { background: var(--ink-850); }
.disc { display: flex; flex-direction: column; gap: 12px; }
.disc__item {
  position: relative; isolation: isolate; overflow: hidden;
  height: 92px;
  border-radius: var(--r-card); border: 1px solid var(--line);
  background: var(--ink-800);
  transition: height .9s var(--ease);
}
.disc__item.is-open { height: 440px; }
.disc__item img {
  position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover;
  opacity: .5; transform: scale(1.12);
  transition: transform 1.4s var(--ease), opacity .7s;
}
.disc__item.is-open img { opacity: 1; transform: scale(1); }
.disc__shade {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(0deg, rgba(4, 6, 26, .94), rgba(4, 6, 26, .3) 72%),
    linear-gradient(90deg, rgba(14, 20, 66, .55), transparent);
}
.disc__btn {
  position: absolute; inset: 0 0 auto 0; width: 100%; height: 92px;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0 1.3rem; text-align: left;
}
.disc__name { font: 600 clamp(1.3rem, 1.1rem + 1vw, 1.8rem)/1.1 var(--f-display); letter-spacing: -.02em; }
.disc__plus {
  width: 44px; height: 44px; padding: 12px; border-radius: 50%;
  border: 1px solid var(--line-2); background: rgba(7, 10, 38, .5);
  transition: transform .6s var(--ease), background .4s, color .4s;
}
.disc__item.is-open .disc__plus { transform: rotate(45deg); background: var(--sky); border-color: var(--sky); color: var(--ink-950); }
.disc__body {
  position: absolute; left: 0; right: 0; bottom: 0; max-width: 34rem; padding: 1.4rem;
  opacity: 0; transform: translateY(18px);
  transition: opacity .5s, transform .8s var(--ease);
}
.disc__item.is-open .disc__body { opacity: 1; transform: none; transition-delay: .15s; }
.disc__body p { font-size: 1.08rem; color: #dbe6ff; }

@media (min-width: 900px) {
  .disc { flex-direction: row; gap: 14px; height: clamp(480px, 64vh, 620px); }
  .disc__item { height: auto; flex: 1 1 0; min-width: 0; transition: flex-grow 1s var(--ease); }
  .disc__item.is-open { height: auto; flex-grow: 2.8; }
  /* en las franjas cerradas el nombre debe caber completo ("Fisioterapeuta") */
  .disc__name { transition: font-size .6s var(--ease); }
  .disc__item:not(.is-open) .disc__name { font-size: 1.2rem; }
  .disc__btn { inset: 0; height: auto; flex-direction: column; align-items: flex-start; justify-content: space-between; padding: 1.3rem; }
  .disc__plus { align-self: flex-end; }
  .disc__body { bottom: 5.6rem; padding: 0 1.3rem; }
}

/* ---------- 18. Preguntas frecuentes ---------- */
.faq { background: var(--ink-900); }
.faq__wrap { width: min(100% - 2 * var(--gutter), 860px); }
.accordion { border-top: 1px solid var(--line); }
.acc { border-bottom: 1px solid var(--line); }
.acc__btn {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  padding: 1.5rem 0; text-align: left;
  font: 500 clamp(1.1rem, 1rem + .6vw, 1.4rem)/1.3 var(--f-display); letter-spacing: -.01em;
  transition: color .3s;
}
.acc__btn:hover { color: var(--sky-hi); }
.acc__btn .icon {
  width: 32px; height: 32px; padding: 7px; border-radius: 50%; border: 1px solid var(--line-2);
  transition: transform .6s var(--ease), background .3s, color .3s;
}
.acc.is-open .acc__btn .icon { transform: rotate(45deg); background: var(--sky); border-color: var(--sky); color: var(--ink-950); }
.acc__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .7s var(--ease); }
.acc__panel > div { overflow: hidden; }
.acc.is-open .acc__panel { grid-template-rows: 1fr; }
.acc__panel p { padding-bottom: 1.6rem; color: var(--dim); max-width: 62ch; }

/* ---------- 19. Contacto ---------- */
.contact { padding-block: clamp(4rem, 9vw, 8rem); background: var(--ink-950); }
.contact__panel {
  position: relative; isolation: isolate; overflow: hidden;
  display: grid; gap: 2.5rem;
  padding: clamp(1.4rem, 5vw, 4.5rem);
  border-radius: calc(var(--r-card) * 1.3); border: 1px solid var(--line-2);
  background: linear-gradient(150deg, #1b2379 0%, var(--ink-800) 52%, var(--ink-850) 100%);
}
.contact__bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.contact__bg::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(55% 60% at 100% 0%, rgba(77, 180, 246, .28), transparent 70%);
}
.contact__bg i {
  position: absolute; right: -18%; top: -34%; width: 78%; aspect-ratio: 1; border-radius: 50%;
  border: 1px solid rgba(166, 219, 252, .22);
  animation: ring 10s ease-out infinite;
}
.contact__bg i:nth-child(2) { animation-delay: 3.3s; }
.contact__bg i:nth-child(3) { animation-delay: 6.6s; }
@keyframes ring { 0% { transform: scale(.35); opacity: .9; } 100% { transform: scale(1.5); opacity: 0; } }

.contact__info { display: grid; gap: 1.3rem; align-content: start; }
.contact__list-title { font: 600 .95rem var(--f-body); color: var(--dim); margin-top: .6rem; }
.contact__links { display: grid; gap: .7rem; margin-top: .6rem; }
.contact__links a {
  display: inline-flex; align-items: center; gap: .7rem; width: fit-content;
  color: var(--text); border-bottom: 1px solid var(--line-2); padding-bottom: .2rem;
  transition: color .3s, border-color .3s;
}
.contact__links a:hover { color: var(--sky-hi); border-color: var(--sky); }
.contact__links .icon { color: var(--sky); }

.form {
  display: grid; gap: 1.1rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border-radius: var(--r-card); border: 1px solid var(--line-2);
  background: rgba(4, 6, 26, .66);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
@media (prefers-reduced-transparency: reduce) { .form { background: var(--ink-950); backdrop-filter: none; -webkit-backdrop-filter: none; } }

.field { display: grid; gap: .5rem; }
.field label { font-size: .95rem; font-weight: 500; color: var(--text); }
.field .opt { color: var(--dim); font-weight: 400; }
.field input, .field select, .field textarea {
  width: 100%; padding: .95rem 1rem;
  border-radius: var(--r-field); border: 1px solid var(--line-2);
  background: rgba(14, 20, 66, .7); color: var(--text);
  font: 400 1rem/1.4 var(--f-body);
  transition: border-color .3s, box-shadow .3s;
}
.field textarea { resize: vertical; min-height: 96px; }
.field input::placeholder, .field textarea::placeholder { color: var(--faint); opacity: 1; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--sky); box-shadow: 0 0 0 3px rgba(77, 180, 246, .28);
}
.field.has-error input, .field.has-error select { border-color: #ff9aa8; }
.field__error { min-height: 0; font-size: .88rem; color: #ffb3bd; }
.field__error:empty { display: none; }

.select { position: relative; }
.select select { appearance: none; -webkit-appearance: none; padding-right: 2.8rem; cursor: pointer; }
.select select option { background: var(--ink-800); color: var(--text); }
.select .icon { position: absolute; right: 1rem; top: 50%; translate: 0 -50%; pointer-events: none; color: var(--sky); }

.btn__label, .btn__loading { display: inline-flex; align-items: center; justify-content: center; gap: .7rem; }
.btn__loading { display: none; }
.btn.is-loading .btn__label { display: none; }
.btn.is-loading .btn__loading { display: inline-flex; }
.spinner {
  width: 18px; height: 18px; border-radius: 50%;
  border: 2px solid rgba(4, 6, 26, .25); border-top-color: var(--ink-950);
  animation: spin .7s linear infinite;
}
.form__note { font-size: .85rem; color: var(--dim); text-align: center; }
.form__success {
  display: flex; align-items: flex-start; gap: .8rem; padding: 1rem 1.1rem;
  border-radius: var(--r-field); border: 1px solid var(--line-2); background: rgba(77, 180, 246, .12);
  animation: panel-in .7s var(--ease) both;
}
.form__success .icon { color: var(--sky); width: 1.6em; height: 1.6em; }
.form__success a { color: var(--sky-hi); text-decoration: underline; text-underline-offset: 3px; }

@media (min-width: 960px) {
  .contact__panel { grid-template-columns: 1.02fr .98fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
}

/* ---------- 20. Footer ---------- */
.footer { position: relative; overflow: hidden; padding-top: clamp(3.5rem, 7vw, 5.5rem); background: var(--ink-950); border-top: 1px solid var(--line); }
.footer__grid { display: grid; gap: 2.5rem; }
.footer__brand { display: grid; gap: 1.2rem; align-content: start; }
.footer__brand p { color: var(--dim); max-width: 26rem; }
.footer__nav, .footer__contact { display: grid; gap: .6rem; align-content: start; }
.footer__title { font: 600 .95rem var(--f-body); color: var(--dim); margin-bottom: .3rem; }
.footer__nav a, .footer__contact a { width: fit-content; color: var(--text); transition: color .3s; }
.footer__nav a:hover, .footer__contact a:hover { color: var(--sky); }
.footer__legal {
  display: grid; gap: .7rem; margin-top: clamp(2.5rem, 5vw, 4rem); padding-top: 1.6rem;
  border-top: 1px solid var(--line); font-size: .85rem; color: var(--dim);
}
.footer__word {
  margin-top: 2rem; padding-bottom: .5rem; text-align: center; white-space: nowrap; user-select: none;
  font: 600 clamp(2rem, 9vw, 12rem)/.95 var(--f-display); letter-spacing: -.04em;
  color: var(--ink-950); -webkit-text-stroke: 2px rgba(166, 219, 252, .22); paint-order: stroke fill;
}
@media (min-width: 800px) {
  .footer__grid { grid-template-columns: 1.4fr .8fr 1fr; gap: 3rem; }
  .footer__legal { grid-template-columns: 1fr auto; gap: 3rem; }
}

/* ---------- 21. Botón flotante de WhatsApp ---------- */
.fab {
  position: fixed; z-index: var(--z-fab);
  right: max(1rem, env(safe-area-inset-right)); bottom: max(1rem, env(safe-area-inset-bottom));
  width: 62px; height: 62px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--sky); color: var(--ink-950);
  box-shadow: 0 16px 36px -8px rgba(77, 180, 246, .7), inset 0 1px 0 rgba(255, 255, 255, .5);
  transition: transform .4s var(--ease), opacity .6s ease .9s, scale .8s var(--ease) .9s;
}
.fab .icon { width: 32px; height: 32px; }
html.fx:not(.is-ready) .fab { opacity: 0; scale: 0; }
.fab__ring { position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--sky); animation: fab-pulse 2.6s ease-out infinite; pointer-events: none; }
@keyframes fab-pulse { 0% { transform: scale(1); opacity: .75; } 100% { transform: scale(1.9); opacity: 0; } }
.fab__tip {
  position: absolute; right: calc(100% + 12px); top: 50%;
  transform: translate(10px, -50%);
  white-space: nowrap; padding: .7rem 1.1rem; border-radius: var(--r-pill);
  background: var(--ink-850); border: 1px solid var(--line-2); color: var(--text); font-size: .9rem;
  opacity: 0; pointer-events: none;
  transition: opacity .4s, transform .6s var(--ease);
}
.fab.show-tip .fab__tip, .fab:hover .fab__tip, .fab:focus-visible .fab__tip { opacity: 1; transform: translate(0, -50%); }

/* ---------- 22. Movimiento reducido ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important; scroll-behavior: auto !important;
  }
  .marquee__track { animation: none; width: auto; flex-wrap: wrap; }
  .marquee__list:nth-child(2) { display: none; }
  .fab__ring { display: none; }
}