/* ==========================================================================
   Curso de Nutrición Deportiva Aplicada · Salud Deportiva
   Hoja de estilos única. Estética: editorial-atlética sobre fondo oscuro.
   Display condensado (Barlow Condensed) + etiquetas mono (IBM Plex Mono)
   + cuerpo neutro (Inter). Acento azul corporativo Salud Deportiva.
   ========================================================================== */

/* ------------------------------------------------------------------ TOKENS */
:root {
  /* Superficies */
  --bg:        #07080A;
  --bg-alt:    #0B0D11;
  --surface:   #101319;
  --surface-2: #151922;
  --line:      rgba(255, 255, 255, .09);
  --line-soft: rgba(255, 255, 255, .05);

  /* Tinta */
  --ink:      #F5F7F9;
  --ink-soft: #B6BCC6;
  --ink-mute: #767E8B;

  /* Acento · azul corporativo Salud Deportiva */
  --accent:      #17A0DF;   /* azul vivo (SALUD): iconos, textos, brillos, bordes */
  --accent-deep: #3E86C8;   /* azul cobalto: etiquetas y textos secundarios */
  --accent-ink:  #FFFFFF;   /* texto sobre superficies azules */
  --accent-glow: rgba(23, 160, 223, .18);
  --accent-grad: linear-gradient(135deg, #29A6E6 0%, #1E7EC4 55%, #245FA0 100%); /* swoosh del logo */

  /* Estado */
  --ok:   #6EE7A8;
  --warn: #FFB454;
  --bad:  #FF6B6B;

  /* Tipografía */
  --f-display: 'Barlow Condensed', system-ui, sans-serif;
  --f-body:    'Inter', system-ui, -apple-system, sans-serif;
  --f-mono:    'IBM Plex Mono', ui-monospace, monospace;

  /* Métrica */
  --shell:     1140px;
  --shell-nar: 760px;
  --radius:    18px;
  --radius-sm: 12px;
  --gutter:    clamp(20px, 5vw, 48px);

  /* Sombra */
  --shadow:    0 24px 60px -28px rgba(0, 0, 0, .8);
  --shadow-lg: 0 40px 90px -30px rgba(0, 0, 0, .85);

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ------------------------------------------------------------------- RESET */
*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

body {
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }

h1, h2, h3 { color: var(--ink); line-height: 1.05; font-weight: 700; }

::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.ico { width: 20px; height: 20px; fill: none; stroke: currentColor;
  stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }

.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;
}

.skip-link {
  position: fixed; top: -60px; left: 16px; z-index: 200;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 18px; border-radius: 10px; font-weight: 600;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 16px; }

/* --------------------------------------------------------------- LAYOUT */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.shell--narrow { max-width: var(--shell-nar); }

.section { padding-block: clamp(64px, 10vw, 128px); }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line-soft); }

.section__head { max-width: 640px; margin-bottom: clamp(40px, 6vw, 64px); }
.section__head--center { margin-inline: auto; text-align: center; }
.section__head h2 { font-size: clamp(2rem, 5vw, 3.1rem); letter-spacing: -.01em; }

.muted { color: var(--ink-mute); }

/* Etiquetas mono */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: .74rem; font-weight: 500;
  letter-spacing: .18em; text-transform: uppercase; color: var(--accent-deep);
  margin-bottom: 18px;
}
.eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px var(--accent-glow);
}
.section__head--center .eyebrow { justify-content: center; }

/* --------------------------------------------------------------- BOTONES */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-weight: 600; font-size: .95rem; line-height: 1;
  padding: 14px 22px; border-radius: 12px;
  border: 1px solid transparent; white-space: nowrap;
  transition: transform .18s var(--ease), background .2s var(--ease),
              border-color .2s var(--ease), box-shadow .2s var(--ease), color .2s;
}
.btn .ico { width: 18px; height: 18px; }
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--accent-grad); color: var(--accent-ink);
  box-shadow: 0 10px 30px -10px var(--accent-glow);
}
.btn--primary:hover { filter: brightness(1.08); transform: translateY(-2px);
  box-shadow: 0 16px 40px -12px var(--accent-glow); }

.btn--ghost { border-color: var(--line); color: var(--ink); background: rgba(255,255,255,.02); }
.btn--ghost:hover { border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.05); }

.btn--sm  { padding: 9px 16px; font-size: .85rem; border-radius: 10px; }
.btn--lg  { padding: 17px 30px; font-size: 1.02rem; border-radius: 14px; }
.btn--block { width: 100%; }

.btn[disabled] { opacity: .5; pointer-events: none; }

.tag {
  display: inline-flex; align-items: center;
  font-family: var(--f-mono); font-size: .72rem; letter-spacing: .05em;
  padding: 5px 11px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--ink-soft);
}
.tag--accent {
  background: var(--accent-glow); border-color: rgba(23,160,223,.35);
  color: var(--accent);
}

/* ------------------------------------------------------------------- NAV */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: #FFFFFF;
  border-bottom: 1px solid rgba(0, 0, 0, .08);
  transition: background .3s var(--ease), border-color .3s var(--ease),
              box-shadow .3s var(--ease), backdrop-filter .3s var(--ease);
}
.nav.is-scrolled {
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: rgba(0, 0, 0, .1);
  box-shadow: 0 8px 24px -14px rgba(0, 0, 0, .25);
}
.nav__inner { display: flex; align-items: center; gap: 24px; height: 72px; }

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand__logo {
  height: 34px; width: auto; display: block;
  transition: opacity .2s var(--ease);
}
.brand:hover .brand__logo { opacity: .85; }
.brand--footer .brand__logo { height: 40px; }

/* En móvil: se oculta el wordmark y aparece solo el isotipo (la "D") */
.brand__logo--mark { display: none; }
@media (max-width: 560px) {
  .brand__logo--full { display: none; }
  .brand__logo--mark { display: block; height: 34px; }
}
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__text strong { color: var(--ink); font-size: .98rem; font-weight: 700; }
.brand__text em { font-style: normal; font-size: .72rem; color: var(--ink-mute);
  font-family: var(--f-mono); letter-spacing: .06em; }

.nav__links { display: flex; gap: 28px; margin-inline: auto; }
.nav__links a {
  font-size: .9rem; font-weight: 600; color: var(--accent); position: relative; padding: 6px 0;
  transition: color .2s;
}
.nav__links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--accent-deep); transition: width .25s var(--ease);
}
.nav__links a:hover { color: var(--accent-deep); }
.nav__links a:hover::after { width: 100%; }

.nav__actions { display: flex; align-items: center; gap: 12px; }

.cart-btn {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 15px; border-radius: 11px; border: 1px solid rgba(23,160,223,.35);
  color: var(--accent); font-size: .88rem; font-weight: 600;
  transition: border-color .2s, background .2s;
}
.cart-btn:hover { border-color: var(--accent); background: rgba(23,160,223,.07); }
.cart-btn__badge {
  min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px;
  display: grid; place-items: center; font-family: var(--f-mono);
  font-size: .72rem; font-weight: 500;
  background: var(--accent-grad); color: var(--accent-ink);
  transition: transform .25s var(--ease), opacity .2s;
}
.cart-btn__badge[data-vacio="true"] { opacity: 0; transform: scale(.4); }
.cart-btn__badge.pulse { animation: badgePulse .4s var(--ease); }
@keyframes badgePulse { 0%{transform:scale(.4)} 60%{transform:scale(1.25)} 100%{transform:scale(1)} }

/* Botón de menú (hamburguesa) — solo móvil/tablet */
.nav__toggle {
  display: none; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 11px;
  border: 1px solid rgba(23,160,223,.35); color: var(--accent); background: #fff;
  transition: border-color .2s, background .2s;
}
.nav__toggle:hover { border-color: var(--accent); background: rgba(23,160,223,.07); }
.nav__toggle .ico { width: 22px; height: 22px; }
.nav__toggle-close { display: none; }

@media (max-width: 860px) {
  .cart-btn__label { display: none; }
  .nav__toggle { display: inline-flex; }
  .nav.is-menu-open .nav__toggle-open { display: none; }
  .nav.is-menu-open .nav__toggle-close { display: block; }

  /* Los enlaces pasan a panel desplegable bajo el header */
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 2px; margin: 0;
    background: #fff; border-bottom: 1px solid rgba(0,0,0,.08);
    box-shadow: 0 18px 34px -18px rgba(0,0,0,.3);
    padding: 8px var(--gutter) 16px;
    display: none;
  }
  .nav.is-menu-open .nav__links { display: flex; }
  .nav__links a { padding: 13px 2px; font-size: 1.02rem; border-bottom: 1px solid var(--line-soft); }
  .nav__links a:last-child { border-bottom: 0; }
  .nav__links a::after { display: none; }
}

@media (max-width: 560px) {
  .nav__cta { display: none; }          /* la barra móvil y el hero cubren el CTA */
}

/* ------------------------------------------------------------------ HERO */
.hero { position: relative; overflow: hidden; padding-block: clamp(72px, 12vw, 150px); }
.hero__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }

/* Video de fondo */
.hero__video {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%; object-fit: cover;
}
/* Capa de oscurecimiento: mantiene legible el texto sobre el video */
.hero__scrim {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(180deg, rgba(7,8,10,.68) 0%, rgba(7,8,10,.48) 42%, rgba(7,8,10,.92) 100%),
    radial-gradient(95% 75% at 50% 34%, rgba(7,8,10,.15), rgba(7,8,10,.72));
}
.hero__grid {
  position: absolute; inset: 0; z-index: 2; opacity: .5;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 75%);
}
.hero__glow {
  position: absolute; z-index: 2; top: -20%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 700px;
  background: radial-gradient(circle at center, var(--accent-glow), transparent 62%);
  filter: blur(20px);
}

/* Si el usuario prefiere menos movimiento: sin video, se muestra el póster */
@media (prefers-reduced-motion: reduce) {
  .hero__video { display: none; }
  .hero__bg {
    background: url(../img/ciclismo-poster.jpg) center / cover no-repeat;
  }
}
.hero__inner { position: relative; z-index: 1; text-align: center; }

.hero .eyebrow { justify-content: center; }

.hero__title {
  font-family: var(--f-display);
  font-size: clamp(3.4rem, 13vw, 8.5rem);
  font-weight: 700; text-transform: uppercase; letter-spacing: -.01em;
  line-height: .92; margin-block: 6px 22px;
}
.hero__title-accent {
  color: transparent;
  background: linear-gradient(120deg, var(--accent), var(--accent-deep));
  -webkit-background-clip: text; background-clip: text;
}
.hero__lead {
  max-width: 620px; margin-inline: auto; font-size: clamp(1rem, 2.2vw, 1.18rem);
  color: var(--ink-soft);
}
.hero__cta {
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
  margin-top: 34px;
}
.hero__price {
  display: inline-flex; align-items: center; justify-content: center; gap: 14px;
  flex-wrap: wrap; margin-top: 24px; font-family: var(--f-body);
}
.hero__price-antes {
  font-size: 1.05rem; font-weight: 500; color: var(--ink-soft);
}
.hero__price-antes s {
  color: var(--ink-soft);
  text-decoration-thickness: 2px; text-decoration-color: var(--bad);
}
.hero__price-oferta {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-body); font-weight: 700; font-size: 1rem; letter-spacing: .005em;
  color: #fff; background: var(--accent-grad);
  padding: 10px 18px; border-radius: 999px;
  box-shadow: 0 12px 28px -10px var(--accent-glow);
}
.hero__price-oferta .ico { width: 16px; height: 16px; }

.hero__facts {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  margin-top: clamp(48px, 8vw, 80px);
  background: var(--line-soft);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.fact { background: var(--bg); padding: 22px 18px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 3px; }
.fact dt { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--ink-mute); }
.fact dd { font-family: var(--f-display); font-size: clamp(2rem, 5vw, 2.9rem);
  font-weight: 700; color: var(--ink); line-height: 1; }
.fact__note { font-size: .74rem; color: var(--ink-mute); }
@media (max-width: 620px) { .hero__facts { grid-template-columns: repeat(2, 1fr); } }

/* ---------------------------------------------------------------- TICKER */
.ticker {
  border-block: 1px solid var(--line); background: var(--bg-alt);
  overflow: hidden; padding-block: 15px;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker__track {
  display: inline-flex; align-items: center; gap: 26px; white-space: nowrap;
  animation: ticker 32s linear infinite; will-change: transform;
}
.ticker__track span { font-family: var(--f-display); font-size: 1.35rem;
  font-weight: 600; text-transform: uppercase; letter-spacing: .04em; color: var(--ink); }
.ticker__track i { color: var(--accent); font-style: normal; font-size: .7rem; }
@keyframes ticker { to { transform: translateX(-50%); } }
.ticker:hover .ticker__track { animation-play-state: paused; }

/* ------------------------------------------------------------------ GRIDS */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  transition: transform .25s var(--ease), border-color .25s, background .25s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,.18);
  background: var(--surface-2); }
.card__ico {
  width: 40px; height: 40px; stroke: var(--accent); stroke-width: 1.6;
  fill: none; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 18px;
}
.card h3 { font-size: 1.18rem; margin-bottom: 8px; }
.card p { font-size: .94rem; }

/* Tiles metodología */
.tile {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 24px;
  position: relative; overflow: hidden;
  transition: border-color .25s, background .25s;
}
.tile:hover { border-color: rgba(255,255,255,.16); background: var(--surface-2); }
.tile__num {
  font-family: var(--f-mono); font-size: .8rem; color: var(--accent-deep);
  letter-spacing: .1em;
}
.tile h3 { font-size: 1.05rem; margin-block: 14px 8px; }
.tile p { font-size: .9rem; }

/* ------------------------------------------------------------- PROGRAMA */
.programa { display: grid; grid-template-columns: 340px 1fr; gap: clamp(32px, 5vw, 64px);
  align-items: start; }
@media (max-width: 900px) { .programa { grid-template-columns: 1fr; } }

.programa__sticky { position: sticky; top: 96px; }
.programa__aside h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 16px; }
.programa__aside .btn { margin-top: 26px; }

.meta-list { list-style: none; padding: 0; margin-top: 24px; display: grid; gap: 14px; }
.meta-list li { display: flex; align-items: center; gap: 12px; font-size: .92rem;
  color: var(--ink-soft); }
.meta-list .ico { stroke: var(--accent); width: 19px; height: 19px; }

/* Lista de módulos */
.modulos { list-style: none; padding: 0; display: grid; gap: 16px; counter-reset: mod; }
.modulo {
  display: grid; grid-template-columns: 92px 1fr; gap: 22px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
  transition: border-color .25s var(--ease), transform .25s var(--ease), background .25s;
}
.modulo:hover { border-color: rgba(23,160,223,.3); transform: translateX(4px);
  background: var(--surface-2); }
.modulo__index { display: flex; flex-direction: column; gap: 8px;
  border-right: 1px solid var(--line); padding-right: 18px; }
.modulo__num { font-family: var(--f-display); font-size: 2.6rem; font-weight: 700;
  color: var(--accent); line-height: 1; }
.modulo__date { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .08em;
  color: var(--ink-mute); }
.modulo__head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.modulo__head .ico { width: 22px; height: 22px; stroke: var(--accent); }
.modulo__head h3 { font-size: 1.28rem; }
.modulo__resumen { font-size: .95rem; color: var(--ink-soft); margin-bottom: 16px; }
.modulo__sesiones {
  margin-top: 4px; align-self: flex-start;
  font-family: var(--f-mono); font-size: .6rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent); background: var(--accent-glow);
  border: 1px solid rgba(23,160,223,.3); border-radius: 999px; padding: 3px 8px;
}
.modulo__grupo + .modulo__grupo { margin-top: 18px; padding-top: 16px;
  border-top: 1px dashed var(--line); }
.modulo__grupo-titulo {
  display: block; margin-bottom: 10px;
  font-family: var(--f-mono); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent-deep);
}
.modulo__temas { list-style: none; padding: 0; display: grid; gap: 8px; }
.modulo__temas li { position: relative; padding-left: 22px; font-size: .88rem;
  color: var(--ink-mute); }
.modulo__temas li::before {
  content: ''; position: absolute; left: 4px; top: .55em; width: 6px; height: 6px;
  border-radius: 50%; background: var(--accent-deep);
}
@media (max-width: 480px) {
  .modulo { grid-template-columns: 1fr; }
  .modulo__index { flex-direction: row; align-items: center; gap: 14px;
    border-right: 0; border-bottom: 1px solid var(--line);
    padding-right: 0; padding-bottom: 12px; }
  .modulo__num { font-size: 2rem; }
}

/* ------------------------------------------------------------- INCLUYE */
.check-list { list-style: none; padding: 0; display: grid; gap: 12px; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; font-size: .93rem;
  color: var(--ink-soft); }
.check-list .ico { width: 18px; height: 18px; stroke: var(--accent);
  stroke-width: 2.4; margin-top: 2px; }
.check-list--cols { grid-template-columns: 1fr 1fr; gap: 12px 28px; }
.check-list--tight { gap: 9px; }
@media (max-width: 620px) { .check-list--cols { grid-template-columns: 1fr; } }

.incluye {
  margin-top: clamp(40px, 6vw, 64px); padding: clamp(28px, 4vw, 44px);
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
}
.incluye__title { font-size: 1.35rem; margin-bottom: 24px; }

/* --------------------------------------------------------- CERTIFICACIÓN */
.cert { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 72px);
  align-items: center; }
@media (max-width: 860px) { .cert { grid-template-columns: 1fr; } }
.cert__copy h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 16px; }
.cert__copy .check-list { margin-top: 24px; }

.diploma {
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px; box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.diploma::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(120% 60% at 100% 0%, var(--accent-glow), transparent 55%);
  pointer-events: none;
}
.diploma__top { display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 28px; }
.diploma__brand { font-family: var(--f-mono); font-size: .78rem; letter-spacing: .22em;
  color: var(--ink-soft); }
.diploma__top .ico { stroke: var(--accent); width: 26px; height: 26px; }
.diploma__label { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent-deep); }
.diploma__name { font-family: var(--f-display); font-size: 2rem; font-weight: 700;
  color: var(--ink); text-transform: uppercase; line-height: 1; margin-top: 8px; }
.diploma__rule { height: 1px; background: var(--line); margin-block: 24px; }
.diploma__meta { display: flex; justify-content: space-between;
  font-family: var(--f-mono); font-size: .78rem; color: var(--ink-mute); }
.diploma__code { margin-top: 26px; font-family: var(--f-mono); font-size: .74rem;
  letter-spacing: .1em; color: var(--accent); }

/* ------------------------------------------------------------------ PRECIO */
.precio { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: start; }
@media (max-width: 880px) { .precio { grid-template-columns: 1fr; } }

.precio__card {
  position: relative; background: var(--surface); border: 1px solid rgba(23,160,223,.28);
  border-radius: var(--radius); padding: clamp(28px, 4vw, 42px);
  box-shadow: var(--shadow-lg);
}
.precio__card::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(160deg, rgba(23,160,223,.5), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none;
}
/* Sello de descuento en la esquina */
.precio__seal {
  position: absolute; top: 20px; right: 20px; z-index: 3;
  width: 82px; height: 82px; border-radius: 50%;
  display: grid; place-content: center; text-align: center; gap: 1px;
  background: var(--accent-grad); color: #fff;
  box-shadow: 0 12px 26px -10px var(--accent-glow);
  transform: rotate(8deg);
}
.precio__seal span { font-family: var(--f-display); font-weight: 700; font-size: 1.6rem; line-height: .85; }
.precio__seal em { font-style: normal; font-family: var(--f-mono); font-size: .58rem;
  letter-spacing: .14em; text-transform: uppercase; opacity: .92; }

/* Cinta de promoción */
.precio__promo {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-mono); font-size: .74rem; letter-spacing: .05em; text-transform: uppercase;
  font-weight: 500; color: #fff; background: var(--accent-grad);
  padding: 8px 15px; border-radius: 999px; margin-bottom: 20px;
  box-shadow: 0 8px 20px -12px var(--accent-glow);
}
.precio__promo .ico { width: 15px; height: 15px; }

.precio__nombre { font-size: 1.7rem; padding-right: 78px; }
.precio__detalle { color: var(--ink-mute); font-size: .92rem; margin-top: 6px; }

/* Comparación de precios: normal → preventa */
.precio__monto { display: flex; align-items: flex-end; gap: 18px; flex-wrap: wrap;
  margin-block: 24px 16px; }
.precio__col { display: flex; flex-direction: column; gap: 5px; }
.precio__tag { font-family: var(--f-mono); font-size: .66rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-mute); }
.precio__tag--hoy { color: var(--accent); }
.precio__antes { color: var(--ink-mute); font-size: 1.5rem; line-height: 1;
  text-decoration-thickness: 2px; text-decoration-color: var(--bad); }
.precio__ahora { font-family: var(--f-display); font-size: clamp(3rem, 7vw, 4.4rem);
  font-weight: 700; color: var(--ink); line-height: .9; }
.precio__flecha { width: 26px; height: 26px; flex: none; align-self: center; margin-bottom: 8px;
  fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Línea de urgencia */
.precio__urgencia {
  display: flex; align-items: center; gap: 9px; font-size: .84rem; color: var(--ink-soft);
  background: rgba(255,180,84,.08); border: 1px solid rgba(255,180,84,.25);
  padding: 10px 14px; border-radius: var(--radius-sm); margin-bottom: 14px;
}
.precio__urgencia .ico { width: 17px; height: 17px; stroke: var(--warn); flex: none; }
.precio__urgencia b { color: var(--ink); white-space: nowrap; }

.precio__nota { font-size: .82rem; color: var(--ink-mute); margin-bottom: 24px; }

@media (max-width: 480px) {
  .precio__seal { width: 66px; height: 66px; top: 16px; right: 16px; }
  .precio__seal span { font-size: 1.25rem; }
  .precio__nombre { padding-right: 64px; }
  .precio__flecha { transform: rotate(90deg); margin: 2px 0; }
}
.precio__card .check-list { margin-bottom: 28px; }
.precio__card .btn { margin-bottom: 16px; }
.precio__pago { display: flex; align-items: center; gap: 9px; font-size: .82rem;
  color: var(--ink-mute); }
.precio__pago .ico { width: 18px; height: 18px; stroke: var(--accent-deep); }

.precio__aside { padding-top: 8px; }
.precio__asideTitle { font-size: 1.25rem; margin-bottom: 12px; }
.sueltos { list-style: none; padding: 0; margin-top: 22px; display: grid; gap: 10px; }
.suelto {
  display: flex; align-items: center; gap: 14px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 14px 16px;
  transition: border-color .2s, background .2s;
}
.suelto:hover { border-color: rgba(255,255,255,.18); background: var(--surface-2); }
.suelto__info { display: flex; flex-direction: column; gap: 2px; flex: 1; min-width: 0; }
.suelto__num { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent-deep); }
.suelto__title { font-size: .92rem; color: var(--ink); overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; }
.suelto__price { font-family: var(--f-mono); font-size: .82rem; color: var(--ink-mute); }
.suelto .btn { flex: none; }

/* --------------------------------------------------------------------- FAQ */
.faq { display: grid; gap: 10px; }
.faq__item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); overflow: hidden;
  transition: border-color .2s;
}
.faq__item[open] { border-color: rgba(23,160,223,.28); }
.faq__item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 22px; font-weight: 600; color: var(--ink); font-size: 1.02rem;
  list-style: none; cursor: pointer;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary .ico { stroke: var(--accent); transition: transform .25s var(--ease); }
.faq__item[open] summary .ico { transform: rotate(180deg); }
.faq__body { padding: 0 22px 22px; }
.faq__body p { font-size: .94rem; color: var(--ink-soft); }

/* --------------------------------------------------------------- CTA FINAL */
.cta-final { padding-block: clamp(72px, 10vw, 120px); position: relative; overflow: hidden;
  background: var(--bg-alt); border-top: 1px solid var(--line-soft); }
.cta-final__inner { text-align: center; position: relative; z-index: 1; }
.cta-final h2 { font-family: var(--f-display); font-size: clamp(2.6rem, 8vw, 5rem);
  text-transform: uppercase; margin-bottom: 14px; }
.cta-final p { max-width: 480px; margin: 0 auto 30px; color: var(--ink-soft); }
.cta-final::after {
  content: ''; position: absolute; bottom: -40%; left: 50%; transform: translateX(-50%);
  width: 700px; height: 500px;
  background: radial-gradient(circle, var(--accent-glow), transparent 60%);
  filter: blur(10px); pointer-events: none;
}

/* ------------------------------------------------------------------ FOOTER */
.footer { border-top: 1px solid var(--line); padding-block: 56px 28px; background: var(--bg); }
.footer__inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
@media (max-width: 720px) { .footer__inner { grid-template-columns: 1fr; gap: 32px; } }
.footer__brand .brand { margin-bottom: 16px; }
.footer__brand .muted { font-size: .88rem; max-width: 320px; }
.footer__nav, .footer__contacto { display: flex; flex-direction: column; gap: 10px; }
.footer h3 { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-mute); font-weight: 500; margin-bottom: 4px; }
.footer__nav a, .footer__contacto a { font-size: .9rem; color: var(--ink-soft);
  transition: color .2s; }
.footer__nav a:hover, .footer__contacto a:hover { color: var(--accent); }
.footer__pago { display: flex; align-items: center; gap: 8px; font-size: .8rem;
  color: var(--ink-mute); margin-top: 6px; }
.footer__pago .ico { width: 16px; height: 16px; stroke: var(--accent-deep); }
.footer__legal { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line-soft);
  font-size: .78rem; color: var(--ink-mute); font-family: var(--f-mono); }

/* -------------------------------------------------------------- BARRA MÓVIL */
.barra-movil {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: rgba(7,8,10,.9); backdrop-filter: blur(14px);
  border-top: 1px solid var(--line);
  transform: translateY(110%); transition: transform .3s var(--ease);
}
.barra-movil.is-visible { transform: translateY(0); }
.barra-movil__precio { display: flex; flex-direction: column; line-height: 1.1; flex: 1; }
.barra-movil__precio s { font-size: .74rem; color: var(--ink-mute); }
.barra-movil__precio strong { font-family: var(--f-display); font-size: 1.5rem; color: var(--ink); }
.barra-movil .btn { flex: none; }
@media (min-width: 861px) { .barra-movil { display: none !important; } }

/* --------------------------------------------------------------------- CARRO */
.carro-backdrop {
  position: fixed; inset: 0; z-index: 150; background: rgba(3,4,6,.6);
  backdrop-filter: blur(3px); opacity: 0; transition: opacity .3s var(--ease);
}
.carro-backdrop.is-open { opacity: 1; }

.carro {
  position: fixed; top: 0; right: 0; z-index: 160; height: 100dvh;
  width: min(440px, 100vw); display: flex; flex-direction: column;
  background: var(--bg-alt); border-left: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  transform: translateX(100%); transition: transform .34s var(--ease);
}
.carro.is-open { transform: translateX(0); }

.carro__head { display: flex; align-items: center; justify-content: space-between;
  padding: 22px 24px; border-bottom: 1px solid var(--line); }
.carro__head h2 { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; }
.carro__head .ico { stroke: var(--accent); }
.icon-btn { display: grid; place-items: center; width: 38px; height: 38px;
  border-radius: 10px; border: 1px solid var(--line); color: var(--ink-soft);
  transition: border-color .2s, color .2s; }
.icon-btn:hover { border-color: rgba(255,255,255,.28); color: var(--ink); }

.carro__body { flex: 1; overflow-y: auto; padding: 20px 24px; }

.carro__items { list-style: none; padding: 0; display: grid; gap: 12px; }
.carro-item {
  display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 14px 16px;
}
.carro-item__nombre { font-size: .92rem; color: var(--ink); font-weight: 500; }
.carro-item__precio { font-family: var(--f-mono); font-size: .8rem; color: var(--ink-mute);
  margin-top: 3px; }
.carro-item__controls { display: flex; align-items: center; gap: 10px; }
.stepper { display: inline-flex; align-items: center; gap: 2px;
  border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }
.stepper button { width: 30px; height: 30px; display: grid; place-items: center;
  color: var(--ink-soft); transition: background .15s, color .15s; }
.stepper button:hover { background: rgba(255,255,255,.06); color: var(--accent); }
.stepper button .ico { width: 15px; height: 15px; }
.stepper span { min-width: 26px; text-align: center; font-family: var(--f-mono);
  font-size: .85rem; color: var(--ink); }
.carro-item__quitar { color: var(--ink-mute); width: 30px; height: 30px;
  display: grid; place-items: center; border-radius: 8px; transition: color .15s, background .15s; }
.carro-item__quitar:hover { color: var(--bad); background: rgba(255,107,107,.1); }
.carro-item__quitar .ico { width: 17px; height: 17px; }

.carro__vacio { text-align: center; padding: 40px 10px; color: var(--ink-mute);
  display: flex; flex-direction: column; align-items: center; gap: 14px; }
.carro__vacio .ico { width: 44px; height: 44px; stroke: var(--ink-mute); stroke-width: 1.3; }
.carro__vacio p { font-size: .95rem; }

.carro__form { margin-top: 26px; padding-top: 24px; border-top: 1px solid var(--line);
  display: grid; gap: 16px; }
.carro__form h3 { font-size: 1.05rem; }
.campo { display: grid; gap: 6px; }
.campo label { font-size: .84rem; color: var(--ink-soft); font-weight: 500; }
.campo .req { color: var(--accent); }
.campo .opt { color: var(--ink-mute); font-weight: 400; font-size: .78rem; }
.campo input {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--line); color: var(--ink);
  font-size: .95rem; transition: border-color .2s, background .2s;
}
.campo input::placeholder { color: var(--ink-mute); }
.campo input:focus { outline: none; border-color: var(--accent); background: var(--surface-2); }
.campo input[aria-invalid="true"] { border-color: var(--bad); }
.campo__ayuda { font-size: .78rem; color: var(--ink-mute); }
.campo__error { font-size: .8rem; color: var(--bad); }

.carro__foot { border-top: 1px solid var(--line); padding: 20px 24px calc(20px + env(safe-area-inset-bottom)); }
.carro__totales { display: grid; gap: 8px; margin-bottom: 16px; }
.carro__linea { display: flex; justify-content: space-between; align-items: center;
  font-size: .9rem; color: var(--ink-soft); }
.carro__linea--ahorro { color: var(--accent-deep); }
.carro__linea--total { font-size: 1rem; }
.carro__linea--total strong { font-family: var(--f-display); font-size: 1.9rem; color: var(--ink); }
.carro__alerta { font-size: .84rem; color: var(--bad); margin-bottom: 12px;
  padding: 10px 12px; background: rgba(255,107,107,.1); border-radius: 9px; }
.carro__seguro { display: flex; align-items: flex-start; gap: 8px; margin-top: 14px;
  font-size: .78rem; color: var(--ink-mute); }
.carro__seguro .ico { width: 16px; height: 16px; stroke: var(--accent-deep); margin-top: 1px; }

/* Botón pagar con spinner */
#btnPagar { position: relative; }
#btnPagar .btn__texto { display: inline-flex; align-items: center; gap: 10px; }
#btnPagar .spinner { display: none; }
#btnPagar.is-loading .btn__texto { visibility: hidden; }
#btnPagar.is-loading .spinner {
  display: block; position: absolute; width: 20px; height: 20px;
  border: 2.5px solid rgba(255,255,255,.35); border-top-color: var(--accent-ink);
  border-radius: 50%; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --------------------------------------------------------------------- TOAST */
.toast {
  position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 20px);
  z-index: 200; background: var(--surface-2); color: var(--ink);
  border: 1px solid var(--line); border-radius: 12px;
  padding: 13px 20px; font-size: .9rem; font-weight: 500;
  box-shadow: var(--shadow); opacity: 0; pointer-events: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease);
  display: flex; align-items: center; gap: 10px;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.toast::before { content: ''; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent); flex: none; }
@media (max-width: 860px) { .toast { bottom: 88px; } }

/* --------------------------------------------------------------------- REVEAL */
.js .reveal { opacity: 0; transform: translateY(24px);
  transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }
.js .reveal[data-delay="1"] { transition-delay: .08s; }
.js .reveal[data-delay="2"] { transition-delay: .16s; }
.js .reveal[data-delay="3"] { transition-delay: .24s; }
.js .reveal[data-delay="4"] { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
}