/* Paralelo 34 · boutique de alta relojería (demo Falince)
   Dos escuelas en una: la vitrina clara, el orden y la sobriedad de Rolex; las pantallas negras apiladas,
   los códigos grandes y la ficha técnica de Richard Mille. Un solo acento, casi nunca. */
:root {
  --negro: #0B0B0C; --grafito: #141416; --humo: #1E1E21; --linea: rgba(236, 231, 223, .14);
  --hueso: #ECE7DF; --piedra: #9A948B; --oro: #B99A6B;
  --vitrina: #E8E2D8; --vitrina-2: #D8D1C5; --tinta: #1A1917; --tinta-suave: #6B655C; --linea-clara: rgba(26, 25, 23, .14);
  --sans: 'Inter Tight', system-ui, sans-serif; --serif: 'Instrument Serif', Georgia, serif;
  --margen: clamp(20px, 6vw, 96px);
  --c: 0vw;
}
* { box-sizing: border-box; }
html { scroll-behavior: auto; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--negro); color: var(--hueso); font: 300 17px/1.55 var(--sans); letter-spacing: -.005em; overflow-x: hidden; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
/* una sola familia, pesos finos, nada de adornos: el énfasis es apenas un peso más liviano */
em { font-style: normal; font-weight: 200; letter-spacing: inherit; }
.eti { margin: 0 0 18px; font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--piedra); font-weight: 400; }
.eti--clara { color: rgba(236, 231, 223, .7); }
.tit { margin: 0 0 20px; font-weight: 300; font-size: clamp(28px, 3vw, 44px); line-height: 1.12; letter-spacing: -.02em; }
.codigo { margin: 0 0 22px; font-weight: 200; font-size: clamp(52px, 6.4vw, 100px); line-height: .96; letter-spacing: -.04em; }
.codigo small { display: block; margin-top: 14px; font-size: clamp(14px, 1.1vw, 17px); font-weight: 300; letter-spacing: 0; color: var(--piedra); }
.baja { margin: 0; max-width: 46ch; color: var(--piedra); font-size: clamp(15px, 1.1vw, 17px); font-weight: 300; }
.cifras { display: flex; gap: clamp(26px, 4vw, 64px); margin: 38px 0 0; padding: 0; }
.cifras div { margin: 0; }
.cifras dt { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--piedra); margin-bottom: 6px; font-weight: 400; }
.cifras dd { margin: 0; font-size: clamp(26px, 2.6vw, 40px); font-weight: 200; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.num { font-variant-numeric: tabular-nums; }
.pildora { display: inline-block; font: 400 13px/1 var(--sans); letter-spacing: .06em; padding: 14px 24px; border-radius: 999px; border: 1px solid currentColor; transition: background .3s, color .3s, transform .3s; }
.pildora:hover { transform: translateY(-1px); }
/* secciones claras: la vitrina */
.claro { background: var(--vitrina); color: var(--tinta); }
.claro .eti, .claro .baja { color: var(--tinta-suave); }
.claro .pildora { color: var(--tinta); }
.claro .pildora:hover { background: var(--tinta); color: var(--hueso); }

/* el aviso de carga: una aguja que da la vuelta */
.carga { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; background: var(--vitrina); color: var(--tinta); transition: opacity .7s ease, visibility 0s .7s; }
.carga.fuera { opacity: 0; visibility: hidden; }
.carga__aguja { width: 56px; height: 56px; border-radius: 50%; border: 1px solid var(--linea-clara); position: relative; }
.carga__aguja::after { content: ''; position: absolute; left: 50%; top: 50%; width: 1px; height: 22px; background: var(--tinta); transform-origin: 50% 100%; transform: translate(-50%, -100%) rotate(0deg); animation: aguja 2s linear infinite; }
@keyframes aguja { to { transform: translate(-50%, -100%) rotate(360deg); } }
.carga__marca { position: absolute; bottom: 42px; margin: 0; font-size: 12px; letter-spacing: .3em; text-transform: uppercase; color: var(--tinta-suave); }

/* cabecera: blanca en diferencia, así se lee sobre claro y sobre negro */
.tope { position: fixed; inset: 0 0 auto; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 22px var(--margen); color: #fff; mix-blend-mode: difference; transition: transform .5s cubic-bezier(.2, .7, .2, 1); }
.tope.oculto { transform: translateY(-110%); }
.tope__marca { font-size: 12px; letter-spacing: .26em; text-transform: uppercase; font-weight: 400; }
.tope__marca em { font-weight: 400; }
.tope__nav { display: flex; gap: 30px; font-size: 13px; letter-spacing: .06em; opacity: .75; }
.tope__nav a { position: relative; padding: 4px 0; }
.tope__nav a::after { content: ''; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px; background: currentColor; transition: right .4s cubic-bezier(.2, .7, .2, 1); }
.tope__nav a:hover::after { right: 0; }
.tope__cta { font-size: 13px; letter-spacing: .06em; padding: 10px 18px; border: 1px solid rgba(255, 255, 255, .5); border-radius: 999px; transition: background .3s, color .3s; }
.tope__cta:hover { background: #fff; color: #000; }

/* ---------- 1 · portada: vitrina clara que se apaga al entrar al reloj ---------- */
.portada { position: relative; background: var(--negro); }
.portada__pista { height: 620svh; }
.portada__escena { position: sticky; top: 0; height: 100svh; overflow: hidden; perspective: 1600px; }
.portada__fondo { position: absolute; inset: 0; background: radial-gradient(ellipse at 62% 48%, #F1ECE4 0%, var(--vitrina) 42%, var(--vitrina-2) 100%); }
.portada__halo { position: absolute; left: 50%; top: 50%; width: 110svh; height: 110svh; transform: translate(-50%, -50%); border-radius: 50%; background: radial-gradient(circle, rgba(0, 0, 0, .1), rgba(0, 0, 0, .03) 45%, transparent 68%); pointer-events: none; }
.reloj { position: absolute; left: 0; top: 0; width: min(66svh, 92vw); aspect-ratio: 4096 / 6144; will-change: transform; }
.reloj__pila { position: absolute; inset: 0; }
.pieza { position: absolute; pointer-events: none; user-select: none; will-change: transform, opacity; }
.pieza--lume { mix-blend-mode: screen; opacity: 0; filter: drop-shadow(0 0 10px rgba(120, 210, 240, .95)) drop-shadow(0 0 36px rgba(80, 170, 220, .7)); }
.reloj__reflejo { position: absolute; border-radius: 50%; opacity: 0; pointer-events: none; background: linear-gradient(118deg, transparent 30%, rgba(255, 255, 255, .55) 44%, rgba(255, 255, 255, .85) 50%, rgba(255, 255, 255, .4) 56%, transparent 70%); will-change: transform, opacity; }
.portada__texto { position: absolute; left: var(--margen); top: 50%; transform: translateY(-50%); max-width: 500px; color: var(--tinta); will-change: transform, opacity; }
.portada__texto .eti { color: var(--tinta-suave); }
.portada__tit { margin: 0 0 18px; font-weight: 200; font-size: clamp(40px, 4.8vw, 76px); line-height: 1.02; letter-spacing: -.035em; }
.portada__tit em { font-weight: 300; }
.portada__baja { margin: 0; color: var(--tinta-suave); max-width: 42ch; }
/* las notas y el título de noche se leen en diferencia: negras sobre la vitrina, blancas sobre el negro */
.notas { position: absolute; inset: 0; margin: 0; padding: 0; list-style: none; pointer-events: none; color: #fff; mix-blend-mode: difference; }
.notas li { position: absolute; left: var(--margen); bottom: clamp(36px, 8svh, 90px); width: min(380px, 80vw); opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s cubic-bezier(.2, .7, .2, 1); }
.notas li.on { opacity: 1; transform: none; }
.notas li::before { content: ''; position: absolute; left: 0; top: -16px; width: 40px; height: 1px; background: currentColor; opacity: .5; }
.notas b { display: block; font-weight: 400; font-size: 17px; letter-spacing: .01em; }
.notas span { display: block; opacity: .72; font-size: 15px; line-height: 1.45; margin-top: 6px; }
.noche { position: absolute; left: var(--margen); right: var(--margen); bottom: clamp(36px, 8svh, 90px); opacity: 0; transform: translateY(16px); pointer-events: none; color: #fff; mix-blend-mode: difference; }
.noche__tit { margin: 0; font-weight: 200; font-size: clamp(34px, 4.6vw, 72px); line-height: 1.04; letter-spacing: -.03em; }
.noche__tit em { font-weight: 300; }

/* secciones que entran con una curva (borde de la esfera) */
.curva { position: relative; border-top-left-radius: var(--c); border-top-right-radius: var(--c); margin-top: -1px; }

/* ---------- 2 · latido ---------- */
.latido { background: var(--grafito); }
.latido__pista { height: 240svh; }
.latido__escena { position: sticky; top: 0; height: 100svh; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 4vw; padding: 0 var(--margen); overflow: hidden; }
.latido__ojo { position: relative; justify-self: center; width: min(44vw, 78svh); aspect-ratio: 1; border-radius: 50%; overflow: hidden; transform: scale(.72); box-shadow: 0 40px 120px rgba(0, 0, 0, .6); will-change: transform; }
.latido__ojo::after { content: ''; position: absolute; inset: 0; border-radius: 50%; box-shadow: inset 0 0 0 1px rgba(236, 231, 223, .12), inset 0 -60px 120px rgba(0, 0, 0, .35); }
.latido__video { width: 100%; height: 100%; object-fit: cover; }
.latido__texto { max-width: 560px; }

/* ---------- 3 · colección: pantallas apiladas sobre vitrina clara ---------- */
.coleccion__pista { height: 100svh; }
.coleccion__escena { position: sticky; top: 0; height: 100svh; overflow: hidden; }
.panel { position: absolute; inset: 0; display: grid; grid-template-columns: 1fr 1fr; align-items: center; padding: 0 var(--margen); background: var(--fondo, var(--vitrina)); will-change: transform; }
.panel__texto { max-width: 520px; }
.panel__codigo { margin: 0 0 16px; font-weight: 200; font-size: clamp(40px, 5.4vw, 88px); line-height: .96; letter-spacing: -.04em; }
.panel__linea { margin: 0 0 28px; color: var(--tinta-suave); font-size: clamp(15px, 1.15vw, 18px); }
.panel__fig { position: relative; justify-self: center; margin: 0; height: min(80svh, 44vw); aspect-ratio: var(--prop, 1); will-change: transform; }
.panel__fig::before { content: ''; position: absolute; left: 50%; top: 50%; width: 120%; height: 120%; transform: translate(-50%, -50%); border-radius: 50%; background: radial-gradient(circle, rgba(255, 255, 255, .55), rgba(255, 255, 255, 0) 62%); pointer-events: none; }
.panel__fig::after { content: ''; position: absolute; left: 50%; bottom: -3%; width: 56%; height: 7%; transform: translateX(-50%); border-radius: 50%; background: radial-gradient(ellipse, rgba(0, 0, 0, .28), transparent 70%); filter: blur(6px); }
.panel__fig img { position: relative; z-index: 1; height: 100%; width: 100%; object-fit: contain; filter: drop-shadow(0 30px 40px rgba(0, 0, 0, .22)); }
.coleccion__indice { position: absolute; right: var(--margen); top: 50%; transform: translateY(-50%); margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; z-index: 5; }
.coleccion__indice li { width: 22px; height: 1px; background: var(--tinta); opacity: .25; transition: opacity .3s, width .3s; }
.coleccion__indice li.on { opacity: 1; width: 40px; }

/* ---------- 4 · grilla quieta ---------- */
.grilla { padding: clamp(80px, 10vw, 140px) var(--margen) clamp(80px, 10vw, 140px); }
.grilla__cabeza { max-width: 720px; margin-bottom: clamp(40px, 5vw, 72px); }
.grilla__lista { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.tarjeta { position: relative; perspective: 1200px; }
.tarjeta__marco { position: relative; aspect-ratio: 4 / 5; border-radius: 6px; background: #F4F0EA; overflow: hidden; transform-style: preserve-3d; transition: background .6s ease; }
.tarjeta__marco::before { content: ''; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px var(--linea-clara); z-index: 3; pointer-events: none; }
.tarjeta__luz { position: absolute; inset: -40%; background: radial-gradient(circle at var(--lx, 50%) var(--ly, 30%), rgba(255, 255, 255, .9), transparent 40%); opacity: 0; transition: opacity .5s; z-index: 2; pointer-events: none; mix-blend-mode: soft-light; }
.tarjeta__img { position: absolute; left: 50%; top: 50%; height: 72%; width: auto; max-width: 82%; object-fit: contain; transform: translate(-50%, -50%) translateZ(30px); transition: transform .7s cubic-bezier(.2, .7, .2, 1); filter: drop-shadow(0 24px 28px rgba(0, 0, 0, .25)); }
.tarjeta__tinte { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 72%, var(--tinte, transparent), transparent 70%); opacity: 0; transition: opacity .7s; }
.tarjeta:hover .tarjeta__luz, .tarjeta:hover .tarjeta__tinte { opacity: 1; }
.tarjeta:hover .tarjeta__img { transform: translate(-50%, -50%) translateZ(60px) scale(1.04); }
.tarjeta__pie { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 14px 2px 0; }
.tarjeta__pie b { display: block; font-weight: 400; font-size: 15px; }
.tarjeta__pie small { display: block; color: var(--tinta-suave); font-size: 13px; margin-top: 2px; }
.tarjeta__pie span { color: var(--tinta-suave); font-size: 13px; white-space: nowrap; border-bottom: 1px solid var(--linea-clara); }
.tarjeta__marca { position: absolute; left: 16px; top: 14px; font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--tinta-suave); z-index: 3; }

/* ---------- 5 · richard mille ---------- */
.mille { background: #0E0F13; }
.mille__pista { height: 260svh; }
.mille__escena { position: sticky; top: 0; height: 100svh; display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 2vw; padding: 0 var(--margen); overflow: hidden; perspective: 1400px; }
.mille__fig { margin: 0; justify-self: center; height: min(86svh, 60vw); aspect-ratio: 1249 / 2000; transform-style: preserve-3d; will-change: transform; }
.mille__fig img { height: 100%; width: 100%; object-fit: contain; filter: drop-shadow(0 60px 80px rgba(0, 0, 0, .7)); }
.mille__texto { max-width: 560px; }
.ficha { padding: 0 var(--margen) clamp(80px, 10vw, 140px); max-width: 1100px; }
.ficha__item { border-top: 1px solid var(--linea); }
.ficha__item:last-child { border-bottom: 1px solid var(--linea); }
.ficha__item summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; padding: 26px 0; font-size: clamp(18px, 1.5vw, 24px); font-weight: 300; letter-spacing: -.01em; }
.ficha__item summary::-webkit-details-marker { display: none; }
.ficha__item summary::after { content: ''; width: 12px; height: 12px; border-right: 1px solid var(--piedra); border-bottom: 1px solid var(--piedra); transform: rotate(45deg); transition: transform .4s; margin-right: 4px; }
.ficha__item[open] summary::after { transform: rotate(225deg); }
.ficha__item dl { margin: 0; padding: 0 0 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px 40px; }
.ficha__item dl div { display: grid; gap: 4px; }
.ficha__item dt { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--piedra); font-weight: 400; }
.ficha__item dd { margin: 0; font-size: 16px; }

/* ---------- 6 · deepsea ---------- */
.hondo { background: #050607; }
.hondo__pista { height: 280svh; }
.hondo__escena { position: sticky; top: 0; height: 100svh; overflow: hidden; background: radial-gradient(ellipse at 50% 120%, #0B1C26 0%, #050607 60%); }
.hondo__metros { position: absolute; left: 50%; top: 46%; transform: translate(-50%, -50%); margin: 0; font-weight: 200; font-size: clamp(120px, 24vw, 360px); line-height: 1; letter-spacing: -.05em; color: rgba(236, 231, 223, .07); white-space: nowrap; }
.hondo__metros small { font-size: .3em; vertical-align: top; margin-left: .06em; }
.hondo__fig { position: absolute; left: 50%; top: 50%; margin: 0; width: min(60svh, 80vw); aspect-ratio: 1775 / 1800; transform: translate(-50%, -50%) translateY(60svh) scale(.6); will-change: transform; }
.hondo__fig img { width: 100%; height: 100%; object-fit: contain; filter: drop-shadow(0 50px 70px rgba(0, 0, 0, .8)); }
.hondo__texto { position: absolute; left: var(--margen); bottom: clamp(36px, 8svh, 90px); max-width: 640px; opacity: 0; transform: translateY(20px); }

/* ---------- 7 · cita ---------- */
.cita { display: grid; grid-template-columns: 1fr 1fr; gap: 6vw; padding: clamp(80px, 12vw, 160px) var(--margen); }
.cita__datos { list-style: none; margin: 40px 0 0; padding: 0; display: grid; gap: 14px; max-width: 420px; }
.cita__datos li { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--linea-clara); font-size: 15px; }
.cita__datos b { font-weight: 400; }
.cita__datos span { color: var(--tinta-suave); text-align: right; }
.cita__form { display: grid; gap: 18px; align-content: start; max-width: 520px; padding-top: 10px; }
.cita__form label { display: grid; gap: 8px; font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--tinta-suave); }
.cita__form input, .cita__form select { font: 300 17px/1.3 var(--sans); color: var(--tinta); background: transparent; border: 0; border-bottom: 1px solid rgba(26, 25, 23, .3); padding: 10px 0; border-radius: 0; outline: none; transition: border-color .3s; letter-spacing: 0; text-transform: none; }
.cita__form input:focus, .cita__form select:focus { border-color: var(--tinta); }
.boton { justify-self: start; margin-top: 10px; font: 400 14px/1 var(--sans); letter-spacing: .08em; padding: 16px 28px; border-radius: 999px; border: 0; background: var(--tinta); color: var(--hueso); cursor: pointer; transition: transform .3s, opacity .3s; }
.boton:hover { transform: translateY(-2px); }
.cita__ok { margin: 0; color: #2F6B45; }

/* pie */
.pie { background: var(--negro); padding: 60px var(--margen) 40px; display: grid; gap: 14px; }
.pie__marca { margin: 0 0 12px; font-size: 12px; letter-spacing: .26em; text-transform: uppercase; }
.pie__marca em { font-weight: 400; }
.pie__demo, .pie__creditos { margin: 0; color: var(--piedra); font-size: 13px; max-width: 80ch; }
.pie__demo a { border-bottom: 1px solid var(--linea); }

/* textos que entran */
.con-js [data-entra] { opacity: 0; transform: translateY(18px); transition: opacity .9s ease, transform .9s cubic-bezier(.2, .7, .2, 1); }
.con-js [data-entra].on { opacity: 1; transform: none; }

/* ---------- celular ---------- */
@media (max-width: 1100px) {
  .grilla__lista { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .tope { padding: 16px 20px; }
  .tope__nav { display: none; }
  .portada__pista { height: 560svh; }
  .reloj { width: min(60svh, 94vw); }
  .portada__texto { left: 20px; right: 20px; top: auto; bottom: 28px; transform: none; max-width: none; }
  .portada__tit { font-size: clamp(40px, 12vw, 56px); }
  .notas li { left: 20px; right: 20px; bottom: 32px; width: auto; }
  .notas b { font-size: 16px; }
  .notas span { font-size: 14px; }
  .noche { left: 20px; right: 20px; bottom: 28px; }
  .latido__escena, .mille__escena { grid-template-columns: 1fr; align-content: center; gap: 24px; padding: 0 20px; }
  .latido__ojo { width: min(74vw, 40svh); }
  .cifras { gap: 22px; margin-top: 26px; }
  .panel { grid-template-columns: 1fr; grid-template-rows: auto 1fr; padding: 84px 20px 28px; gap: 10px; }
  .panel__fig { height: min(44svh, 80vw); align-self: center; }
  .panel__codigo { font-size: clamp(36px, 11vw, 52px); }
  .coleccion__indice { right: 14px; }
  .grilla { padding-left: 20px; padding-right: 20px; }
  .grilla__lista { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .tarjeta__marca { left: 12px; top: 10px; font-size: 10px; }
  .mille__fig { height: min(46svh, 90vw); }
  .ficha { padding-left: 20px; padding-right: 20px; }
  .ficha__item dl { grid-template-columns: 1fr; }
  .hondo__fig { width: min(86vw, 50svh); }
  .hondo__texto { left: 20px; right: 20px; bottom: 28px; }
  .cita { grid-template-columns: 1fr; gap: 40px; padding: 72px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .carga__aguja::after { animation: none; }
  .con-js [data-entra] { opacity: 1; transform: none; transition: none; }
}