/* MURDECK · web 2026 — sistema común de la portada y las páginas de juego */
@property --persiana { syntax: "<length>"; inherits: false; initial-value: 0px; }

:root{
  --noche:#06080d; --noche2:#0a0f18; --marino:#0f1a2b; --marino2:#152338; --linea:rgba(242,235,220,.12);
  --crema:#f2ebdc; --humo:#9aa3b2; --humo2:#6b7383; --oro:#e5b562; --oro2:#f7d996; --sangre:#d8484c;
  --sirena:#3d7bd9; --verde:#2f8a5b; --acento:var(--oro);
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","Inter",system-ui,"Segoe UI",Roboto,sans-serif;
  --mono:"Courier Prime","Cousine",ui-monospace,Menlo,monospace;
  --ancho:1180px; --gut:16px; --nav:52px;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav) + 12px)}
body{margin:0;background:var(--noche);color:var(--crema);font:17px/1.55 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:clip}
img,video{display:block;max-width:100%}
a{color:inherit}
button{font:inherit;color:inherit}
.pixel{image-rendering:pixelated;image-rendering:crisp-edges}
.envoltura{max-width:var(--ancho);margin:0 auto;padding:0 var(--gut)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* grano de película y luz de lámpara que sigue al ratón */
body::before{content:"";position:fixed;inset:-50%;z-index:100;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E")}
.luz-raton{position:fixed;inset:0;z-index:1;pointer-events:none;background:radial-gradient(520px circle at var(--lx,50%) var(--ly,-20%),rgba(247,217,150,.07),transparent 60%)}
@media (hover:none){.luz-raton{display:none}}

/* ───────── navegación ───────── */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;height:var(--nav);
  background:rgba(6,8,13,.62);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(242,235,220,.07)}
.nav .envoltura{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.marca{display:flex;align-items:center;gap:10px;text-decoration:none;font:700 15px var(--mono);letter-spacing:.32em}
.marca img{width:22px;height:30px}
.nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.nav ul a{text-decoration:none;font-size:13px;color:rgba(242,235,220,.78);transition:color .2s}
.nav ul a:hover,.nav ul a[aria-current]{color:var(--crema)}
.nav .pildora{font-size:12px;padding:5px 12px}
.menu-boton{display:none;width:44px;height:44px;margin-right:-10px;background:none;border:0;cursor:pointer;position:relative}
.menu-boton span,.menu-boton span::before{position:absolute;left:13px;width:18px;height:1.5px;background:var(--crema);transition:transform .3s}
.menu-boton span{top:21px}.menu-boton span::before{content:"";left:0;top:6px}
.nav.abierta .menu-boton span{transform:translateY(3px) rotate(45deg)}
.nav.abierta .menu-boton span::before{transform:translateY(-6px) rotate(-90deg)}
@media (max-width:820px){
  .menu-boton{display:block}
  .nav .pildora{display:none}
  .nav ul{position:fixed;top:var(--nav);left:0;right:0;height:0;overflow:hidden;flex-direction:column;gap:0;padding:0 24px;
    background:rgba(6,8,13,.96);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);transition:height .45s cubic-bezier(.2,.8,.2,1)}
  .nav.abierta ul{height:calc(100svh - var(--nav))}
  .nav ul li{border-bottom:1px solid var(--linea);opacity:0;transform:translateY(-8px);transition:opacity .3s,transform .3s}
  .nav.abierta ul li{opacity:1;transform:none}
  .nav.abierta ul li:nth-child(2){transition-delay:.05s}.nav.abierta ul li:nth-child(3){transition-delay:.1s}
  .nav.abierta ul li:nth-child(4){transition-delay:.15s}.nav.abierta ul li:nth-child(5){transition-delay:.2s}
  .nav ul a{display:block;padding:18px 0;font-size:24px;font-weight:600;color:var(--crema)}
}

/* ───────── piezas comunes ───────── */
.ceja{font:700 13px/1.2 var(--mono);letter-spacing:.22em;text-transform:uppercase;color:var(--acento);margin:0 0 14px}
.titular{font-weight:700;letter-spacing:-.035em;line-height:1.02;margin:0;font-size:clamp(40px,7.4vw,96px)}
.titular-m{font-weight:700;letter-spacing:-.03em;line-height:1.05;margin:0;font-size:clamp(32px,5vw,64px)}
.entrada{font-size:clamp(18px,2vw,22px);line-height:1.45;color:var(--humo);max-width:640px;margin:20px 0 0;font-weight:500}
.entrada b{color:var(--crema);font-weight:600}
.oro{color:var(--oro)}
.degradado{background:linear-gradient(100deg,var(--oro2),var(--oro) 40%,#c9823a);-webkit-background-clip:text;background-clip:text;color:transparent}
.pildora{display:inline-flex;align-items:center;gap:8px;border-radius:999px;text-decoration:none;font-weight:600;font-size:15px;padding:11px 22px;
  background:var(--crema);color:#0b0d12;border:0;cursor:pointer;transition:transform .2s,background .2s}
.pildora:hover{transform:scale(1.03);background:#fff}
.pildora.hueca{background:transparent;color:var(--crema);box-shadow:inset 0 0 0 1px rgba(242,235,220,.35)}
.pildora.hueca:hover{background:rgba(242,235,220,.08)}
.pildora.oro-b{background:var(--oro);color:#1a1206}
.enlace{color:var(--oro);text-decoration:none;font-weight:500;font-size:19px}
.enlace::after{content:" ›"}
.enlace:hover{text-decoration:underline}
.pronto{display:inline-flex;align-items:center;gap:10px;font:700 13px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--oro);
  border:1px solid rgba(229,181,98,.4);border-radius:999px;padding:8px 16px}
.pronto::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--oro);box-shadow:0 0 12px var(--oro);animation:latido 2s infinite}
@keyframes latido{50%{opacity:.35}}
@media (max-width:480px){.pronto{font-size:11px;letter-spacing:.07em;padding:8px 14px;gap:8px;max-width:100%}}

/* aparición al entrar */
.aparece{opacity:0;transform:translateY(40px);transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
.aparece.visto{opacity:1;transform:none}

/* ───────── naipe 3D ───────── */
.mesa3d{position:relative;perspective:1400px;touch-action:pan-y;user-select:none;-webkit-user-select:none;cursor:grab}
.mesa3d:active{cursor:grabbing}
.naipe3d{--rx:0deg;--ry:0deg;--grosor:3px;position:relative;width:var(--w,300px);aspect-ratio:1000/1395;margin:0 auto;transform-style:preserve-3d;
  transform:rotateX(var(--rx)) rotateY(var(--ry));will-change:transform}
.naipe3d .cara,.naipe3d .dorso,.naipe3d .canto{position:absolute;inset:0;border-radius:5.5%/4%;transform-style:preserve-3d}
.naipe3d .cara{transform:translateZ(calc(var(--grosor)/2));-webkit-backface-visibility:hidden;backface-visibility:hidden}
.naipe3d .dorso{transform:rotateY(180deg) translateZ(calc(var(--grosor)/2));-webkit-backface-visibility:hidden;backface-visibility:hidden;overflow:hidden;background:var(--marino)}
.naipe3d .dorso img{width:100%;height:100%;object-fit:cover}
.naipe3d .canto{background:#d9cba8;transform:translateZ(var(--z))}
.naipe3d .arte{position:absolute;max-width:none;pointer-events:none}
.naipe3d .plano{position:absolute;inset:0;width:100%;height:100%;border-radius:inherit}
.naipe3d .brillo{position:absolute;inset:0;border-radius:inherit;pointer-events:none;overflow:hidden;mix-blend-mode:color-dodge;opacity:var(--foil,.55)}
.naipe3d .brillo::before{content:"";position:absolute;inset:-60%;
  background:linear-gradient(115deg,transparent 38%,rgba(255,226,150,.55) 46%,rgba(150,210,255,.45) 50%,rgba(255,160,200,.35) 54%,transparent 62%);
  transform:translate(var(--fx,0%),var(--fy,0%))}
.naipe3d .brillo::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at var(--gx,50%) var(--gy,30%),rgba(255,255,255,.35),transparent 45%)}
.naipe3d .dorso .brillo{mix-blend-mode:overlay}
.sombra3d{position:absolute;left:50%;bottom:-9%;width:calc(var(--w,300px)*.9);height:40px;transform:translateX(calc(-50% + var(--sx,0px)));
  background:radial-gradient(closest-side,rgba(0,0,0,.65),transparent);filter:blur(6px);pointer-events:none}
.pista{display:inline-flex;align-items:center;gap:8px;font:700 12px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--humo);transition:opacity .6s}
.pista svg{width:22px;height:22px}
.mesa3d.tocada~.pista,.mesa3d.tocada .pista{opacity:0}
.botones3d{display:flex;justify-content:center;gap:10px;margin-top:22px}
.botones3d button{background:rgba(242,235,220,.08);border:1px solid var(--linea);border-radius:999px;padding:8px 16px;font-size:13px;cursor:pointer;color:var(--crema)}
.botones3d button:hover{background:rgba(242,235,220,.15)}

/* ───────── iPhone ───────── */
.iphone{position:relative;width:var(--w,280px);aspect-ratio:1470/3000;flex:none}
.iphone .pantalla{position:absolute;left:5.1%;right:5.1%;top:2.2%;bottom:2.2%;border-radius:13.6%/6.4%;overflow:hidden;background:#000}
.iphone .pantalla img,.iphone .pantalla video{width:100%;height:100%;object-fit:cover;object-position:top}
.iphone .barra{position:absolute;left:0;right:0;top:0;width:100%;height:auto;z-index:2}
.iphone .marco{position:absolute;inset:0;width:100%;height:100%;z-index:3;pointer-events:none}
.iphone::after{content:"";position:absolute;inset:6% 4%;z-index:-1;border-radius:20%/9%;box-shadow:0 50px 90px -20px rgba(0,0,0,.9),0 0 80px -10px var(--halo,transparent)}

/* ───────── vídeo a todo ancho ───────── */
.lienzo-video{position:relative;overflow:hidden;background:#000}
.lienzo-video video,.lienzo-video>img{width:100%;height:100%;object-fit:cover}
.lienzo-video::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,8,13,.0) 40%,rgba(6,8,13,.75) 82%,var(--noche)),linear-gradient(0deg,transparent 80%,rgba(6,8,13,.6))}

/* ───────── pie ───────── */
.pie{border-top:1px solid var(--linea);background:var(--noche);position:relative;z-index:2}
.pie .envoltura{padding-top:40px;padding-bottom:48px;display:grid;gap:28px;grid-template-columns:1.4fr repeat(3,1fr);font-size:13px;color:var(--humo)}
.pie h3{font-size:12px;color:var(--crema);margin:0 0 10px;font-weight:600}
.pie ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.pie a{text-decoration:none;color:var(--humo)}
.pie a:hover{color:var(--crema);text-decoration:underline}
.pie .legal{grid-column:1/-1;border-top:1px solid var(--linea);padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media (max-width:760px){.pie .envoltura{grid-template-columns:1fr 1fr}.pie .envoltura>div:first-child{grid-column:1/-1}}

/* ───────── transición entre páginas: persiana ───────── */
@view-transition{navigation:auto}
::view-transition-old(root){animation:none}
::view-transition-new(root){animation:persiana .7s cubic-bezier(.6,0,.2,1) both;
  -webkit-mask-image:repeating-linear-gradient(180deg,#000 0 var(--persiana),transparent var(--persiana) 56px);
  mask-image:repeating-linear-gradient(180deg,#000 0 var(--persiana),transparent var(--persiana) 56px)}
@keyframes persiana{from{--persiana:0px}to{--persiana:57px}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .aparece{opacity:1;transform:none}
  ::view-transition-new(root){animation:none}
}