/* Concepto: cada categoría se fija en pantalla y sus videos corren de derecha a izquierda con el scroll. */
:root {
  --negro: #0d0c0b;
  --carbon: #1a1816;
  --crema: #f2ead9;
  --crema-tenue: #b9b09f;
  --rojo: #d6402f;
  --amarillo: #f2b630;
  --azul: #2f5fd0;
  --titulo: "Montserrat", "Helvetica Neue", Arial, sans-serif;
  --texto: "DM Sans", "Helvetica Neue", Arial, sans-serif;
  --nota: "Cormorant Garamond", Georgia, serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--negro); color: var(--crema); }
body { font-family: var(--texto); font-size: 16px; line-height: 1.55; -webkit-font-smoothing: antialiased; }

.tricolor { display: flex; height: 6px; }
.tricolor span { flex: 1; }
.tricolor span:nth-child(1) { background: var(--rojo); }
.tricolor span:nth-child(2) { background: var(--amarillo); }
.tricolor span:nth-child(3) { background: var(--azul); }

/* Encabezado */
.top { position: relative; z-index: 20; background: var(--negro); }
.top-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px clamp(16px, 4vw, 48px); }
.logo { font-family: var(--titulo); font-weight: 800; font-size: 1.35rem; letter-spacing: 0.18em; color: var(--crema); text-decoration: none; }
.nav { display: flex; gap: clamp(12px, 2.5vw, 28px); flex-wrap: wrap; justify-content: flex-end; }
.nav a { font-family: var(--titulo); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--crema-tenue); text-decoration: none; }
.nav a:hover, .nav a:focus-visible { color: var(--crema); }

/* Portada */
.intro { padding: clamp(48px, 10vh, 120px) clamp(16px, 4vw, 48px) clamp(40px, 8vh, 96px); max-width: 1200px; }
.eyebrow { font-family: var(--titulo); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase; color: var(--amarillo); margin: 0 0 18px; }
.intro h1 { font-family: var(--titulo); font-weight: 800; font-size: clamp(2.6rem, 8vw, 6.5rem); line-height: 0.95; letter-spacing: -0.02em; margin: 0; text-wrap: balance; }
.intro h1 em { font-family: var(--nota); font-weight: 500; font-style: italic; letter-spacing: 0; color: var(--crema-tenue); }
.intro p { max-width: 52ch; color: var(--crema-tenue); font-size: 1.05rem; margin: 24px 0 0; }
.hint { display: inline-flex; align-items: center; gap: 10px; margin-top: 36px; font-family: var(--titulo); font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--crema); }
.hint::after { content: ""; width: 1px; height: 36px; background: var(--crema); animation: baja 1.8s ease-in-out infinite; transform-origin: top; }
@keyframes baja { 0%,100% { transform: scaleY(0.3); } 50% { transform: scaleY(1); } }

/* Categoría con scroll horizontal fijo */
.categoria { position: relative; border-top: 1px solid var(--carbon); }
.fijo { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
.pista { display: flex; align-items: center; gap: clamp(14px, 2vw, 28px); padding-inline: clamp(16px, 4vw, 48px); will-change: transform; width: max-content; }

.portada-cat { flex: 0 0 auto; width: min(78vw, 460px); display: flex; flex-direction: column; gap: 14px; padding-right: clamp(8px, 3vw, 40px); }
.portada-cat .cuenta { font-family: var(--titulo); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase; }
.portada-cat h2 { font-family: var(--titulo); font-weight: 800; font-size: clamp(2.4rem, 7vw, 5rem); line-height: 0.95; letter-spacing: -0.02em; margin: 0; text-wrap: balance; overflow-wrap: anywhere; }
.portada-cat p { font-family: var(--nota); font-style: italic; font-size: clamp(1.15rem, 2vw, 1.4rem); line-height: 1.35; color: var(--crema-tenue); margin: 0; max-width: 30ch; }

.tarjeta { flex: 0 0 auto; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.marco { position: relative; height: min(70svh, 640px); aspect-ratio: 9 / 16; max-width: 80vw; background: var(--carbon); overflow: hidden; border-radius: 4px; }
.marco video, .marco img { width: 100%; height: 100%; object-fit: cover; display: block; max-width: none; }
.sonido { position: absolute; right: 10px; bottom: 10px; border: 0; border-radius: 999px; padding: 7px 12px; font-family: var(--titulo); font-size: 0.62rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; background: rgba(13,12,11,0.72); color: var(--crema); cursor: pointer; backdrop-filter: blur(6px); }
.sonido[aria-pressed="true"] { background: var(--crema); color: var(--negro); }
.sonido:focus-visible, .nav a:focus-visible, .logo:focus-visible { outline: 2px solid var(--amarillo); outline-offset: 3px; }
.tarjeta figcaption { display: flex; justify-content: space-between; gap: 12px; font-size: 0.82rem; }
.tarjeta figcaption strong { font-family: var(--titulo); font-weight: 600; letter-spacing: 0.04em; }
.tarjeta figcaption span { color: var(--crema-tenue); font-variant-numeric: tabular-nums; }

.ejemplo .marco { display: grid; place-items: center; border: 1px dashed var(--crema-tenue); background: var(--carbon); }
.ejemplo .marco span { font-family: var(--nota); font-style: italic; font-size: 1.3rem; color: var(--crema-tenue); text-align: center; padding: 16px; }
.etiqueta-ejemplo { font-family: var(--titulo); font-size: 0.6rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--negro); background: var(--amarillo); padding: 3px 8px; border-radius: 2px; align-self: flex-start; }

.progreso { position: absolute; left: clamp(16px, 4vw, 48px); right: clamp(16px, 4vw, 48px); bottom: max(24px, env(safe-area-inset-bottom, 0px)); height: 2px; background: var(--carbon); }
.progreso i { display: block; height: 100%; width: 100%; transform-origin: left; transform: scaleX(0); }

/* Pie */
.pie { padding: clamp(56px, 10vh, 110px) clamp(16px, 4vw, 48px) 40px; display: grid; gap: 18px; }
.pie h2 { font-family: var(--titulo); font-weight: 800; font-size: clamp(2rem, 6vw, 4rem); line-height: 1; margin: 0; letter-spacing: -0.02em; }
.pie h2 em { font-family: var(--nota); font-weight: 500; color: var(--amarillo); }
.pie p { margin: 0; color: var(--crema-tenue); }
.pie small { color: var(--crema-tenue); font-size: 0.75rem; letter-spacing: 0.08em; }

@media (prefers-reduced-motion: reduce) {
  .hint::after { animation: none; }
}

@media (max-width: 600px) {
  .marco { height: 60svh; }
  .tarjeta figcaption { flex-direction: column; gap: 2px; }
}

/* Videos horizontales 16:9 */
.tarjeta.horizontal .marco { height: auto; width: min(86vw, 1040px, calc(70svh * 16 / 9)); aspect-ratio: 16 / 9; max-width: none; }

/* Botón de WhatsApp */
.wa { display: inline-flex; align-items: center; gap: 10px; background: var(--crema); color: var(--negro); text-decoration: none; font-family: var(--titulo); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; padding: 14px 22px; border-radius: 999px; transition: background .2s, color .2s; }
.wa:hover { background: var(--amarillo); }
.wa:focus-visible { outline: 2px solid var(--amarillo); outline-offset: 3px; }
.wa svg { width: 20px; height: 20px; fill: currentColor; flex: none; }
.wa-chico { padding: 8px 14px; font-size: 0.65rem; flex: none; }
.contacto { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 8px; }
.tel { font-family: var(--titulo); font-weight: 600; letter-spacing: 0.08em; font-variant-numeric: tabular-nums; user-select: all; }
@media (max-width: 600px) { .nav { display: none; } }

/* Logo */
.logo { display: block; line-height: 0; }
.logo img { height: 68px; width: auto; max-width: none; display: block; }
@media (max-width: 600px) { .logo img { height: 50px; } }

/* Sitio: formulario de solicitud en el pie */
button.wa{border:0;cursor:pointer}