:root{
  --bg:#1f2023; --surface:#2a2b2f; --surface2:#34353a; --line:#3d3e44;
  --text:#f5f5f7; --text2:#a1a1a6; --ice:#2997ff; --ice2:#0a84ff; --ok:#30d158; --warn:#ffd60a; --bad:#ff453a;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","Inter",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.45;min-height:100vh;display:flex;flex-direction:column}
main{flex:1}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{width:min(1120px,100% - 32px);margin-inline:auto}

/* Encabezado */
header{position:sticky;top:0;z-index:20;background:rgba(31,32,35,.78);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(255,255,255,.07)}
/* Logo pegado a la esquina izquierda, carrito a la derecha; menú centrado */
nav{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:56px;padding:0 20px;font-size:13px}
nav .cart-btn{justify-self:end}
.logo img{height:36px;width:auto}
nav ul{display:flex;gap:28px;list-style:none;padding:0}
nav ul a{color:var(--text2);transition:color .2s}nav ul a:hover{color:var(--text)}
@media(max-width:640px){nav ul{gap:16px;font-size:12px}nav ul li:nth-child(n+3){display:none}}
.cart-btn{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:50%;color:var(--text);transition:background .2s}
.cart-btn:hover{background:var(--surface)}

/* Botones y enlaces */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--ice2);color:#fff;border:0;border-radius:980px;padding:12px 24px;font-size:16px;font-weight:500;cursor:pointer;transition:background .2s,transform .1s}
.btn:hover{background:#0071e3}.btn:active{transform:scale(.98)}
.btn[disabled]{opacity:.5;cursor:default}
.btn.ghost{background:var(--surface2);color:var(--text)}.btn.ghost:hover{background:var(--line)}
.btn.block{width:100%}
.link{color:var(--ice);font-size:17px}.link:hover{text-decoration:underline}

/* Tipografía */
.eyebrow{font-size:14px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ice)}
h1{font-size:clamp(44px,8vw,88px);line-height:1.03;letter-spacing:-.035em;font-weight:700;margin:12px 0 18px}
h2{font-size:clamp(32px,5vw,52px);line-height:1.07;letter-spacing:-.03em;font-weight:700}
.lead{font-size:clamp(19px,2.4vw,24px);color:var(--text2);max-width:660px;margin:0 auto 28px}
.sub{color:var(--text2);font-size:clamp(17px,2vw,21px);margin-top:10px}
.center{text-align:center}
section{padding:100px 0}

/* Hero: línea de conservadores a escala real */
.hero{text-align:center;padding:88px 0 40px}
.cta{display:flex;gap:24px;justify-content:center;align-items:center;flex-wrap:wrap}
.lineup{margin-top:56px;background:#fff;border-radius:28px;padding:48px 4% 0;display:flex;justify-content:center;align-items:flex-end;gap:3%}
.lineup a{display:flex;flex-direction:column;align-items:center;transition:transform .3s}
.lineup a:hover{transform:translateY(-6px)}
.lineup img{width:100%;height:auto}
.lineup span{color:#1d1d1f;font-weight:600;font-size:clamp(11px,1.4vw,14px);padding:14px 0 20px;white-space:nowrap}

/* Tienda */
.grid4{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:48px}
.tile{background:var(--surface);border-radius:24px;padding:20px 20px 28px;text-align:center;transition:transform .3s,background .3s}
.tile:hover{transform:scale(1.02);background:var(--surface2)}
.tile .well{background:#fff;border-radius:16px;height:260px;display:grid;place-items:center;padding:20px;margin-bottom:20px}
.tile .well img{max-height:220px;object-fit:contain}
.tile h3{font-size:24px;letter-spacing:-.02em}
.tile p{color:var(--text2);font-size:15px;margin:4px 0 14px}

/* Nosotros */
.story{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;margin-top:48px}
@media(max-width:860px){.story{grid-template-columns:1fr;gap:28px}}
.story p{color:var(--text2);font-size:18px;margin-bottom:18px}
.story p b{color:var(--text);font-weight:600}
.pillars{display:grid;gap:14px}
.pillar{background:var(--surface);border-radius:20px;padding:22px 24px}
.pillar h3{font-size:18px;margin-bottom:4px}
.pillar p{font-size:15px;margin:0;color:var(--text2)}

/* Producto */
.model{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start;background:var(--surface);border-radius:32px;padding:48px}
@media(max-width:860px){.model{grid-template-columns:1fr;padding:24px 18px;gap:28px}}
.main{background:#fff;border-radius:20px;aspect-ratio:1;position:relative;overflow:hidden}
.main img{position:absolute;inset:4%;width:92%;height:92%;object-fit:contain}
.thumbs{display:flex;gap:10px;margin-top:12px;justify-content:center;flex-wrap:wrap}
.thumbs button{width:58px;height:58px;border-radius:12px;border:2px solid transparent;background:#fff;padding:3px;cursor:pointer}
.thumbs button[aria-current=true]{border-color:var(--ice)}
.thumbs img{width:100%;height:100%;object-fit:contain}
.model h2{margin:6px 0 8px}
.model .tag{font-size:21px;color:var(--text2)}
.price{font-size:28px;font-weight:600;margin:22px 0 4px;letter-spacing:-.02em}
.price small{display:block;font-size:13px;font-weight:400;color:var(--text2);letter-spacing:0}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 16px;margin:26px 0}
.stats b{display:block;font-size:28px;letter-spacing:-.02em;line-height:1.1}
.stats span{font-size:13px;color:var(--text2)}
.buy{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
details{border-top:1px solid var(--line);margin-top:28px;padding-top:16px}
summary{cursor:pointer;font-weight:600;font-size:15px;color:var(--ice)}
table{width:100%;border-collapse:collapse;font-size:14px;margin-top:12px}
td,th{padding:9px 0;border-bottom:1px solid var(--line);text-align:left;font-weight:400}
td:last-child,th:last-child{text-align:right}
th[scope=rowgroup]{text-align:left;font-weight:600;padding-top:18px}
td:first-child{color:var(--text2)}

/* Selector de cantidad */
.stepper{display:inline-flex;align-items:center;background:var(--surface2);border-radius:980px;padding:4px;height:48px}
.stepper button{width:40px;height:40px;border:0;border-radius:50%;background:transparent;font-size:22px;line-height:1;cursor:pointer;color:var(--text)}
.stepper button:hover{background:var(--line)}
.stepper input{width:64px;text-align:center;background:transparent;border:0;font-size:17px;font-weight:600;-moz-appearance:textfield}
.stepper input::-webkit-outer-spin-button,.stepper input::-webkit-inner-spin-button{-webkit-appearance:none}
.stepper input:focus{outline:2px solid var(--ice);border-radius:8px}
.stepper.sm{height:40px}.stepper.sm button{width:32px;height:32px;font-size:18px}.stepper.sm input{width:52px;font-size:15px}

/* Formularios */
.field{display:grid;gap:6px;font-size:13px;color:var(--text2)}
.field input,.field select,.field textarea{background:var(--surface2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:16px;color:var(--text)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--ice);border-color:transparent}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
@media(max-width:600px){.form-grid{grid-template-columns:1fr}}
.card{background:var(--surface);border-radius:24px;padding:28px}
.note{font-size:13px;color:var(--text2)}
.error{color:var(--bad);font-size:14px}

/* Pie */
footer{border-top:1px solid var(--line);padding:56px 0 40px;margin-top:40px;font-size:14px;color:var(--text2)}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr;gap:28px}}
.foot-logo{height:48px;width:auto;margin-bottom:12px}
footer h4{color:var(--text);font-size:13px;font-weight:600;margin-bottom:12px}
footer .foot-grid a{display:block;margin-bottom:10px}
footer .foot-grid a:hover{color:var(--text)}
footer .wa b{display:block;color:var(--text);font-weight:600;font-size:16px}
footer .wa span{font-size:13px}
.legal{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-size:12px}

/* Crédito de Código Serna */
.credit{display:block;width:max-content;margin:28px auto 0;font-family:"Fraunces",Georgia,serif;font-weight:300;font-size:13px;letter-spacing:.04em;color:#f0eada;opacity:.6;transition:opacity .2s}
.credit span{font-weight:400;letter-spacing:.12em}
.credit:hover{opacity:1}

/* Botón y formulario "¿Te cotizamos?" */
.qw-btn{position:fixed;right:18px;bottom:18px;z-index:30;background:var(--ice2);color:#fff;border:0;border-radius:980px;padding:13px 20px;font-size:15px;font-weight:600;cursor:pointer;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.qw-btn:hover{background:#0071e3}
.qw{position:fixed;right:18px;bottom:78px;z-index:31;width:min(360px,calc(100vw - 36px));max-height:calc(100vh - 100px);overflow:auto;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.qw[hidden]{display:none}
.qw form{display:grid;gap:12px;grid-template-columns:minmax(0,1fr)}
.qw .form-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.qw input,.qw select{width:100%;min-width:0}
.qw-h{display:flex;justify-content:space-between;align-items:center}
.qw-x{background:none;border:0;color:var(--text2);font-size:24px;cursor:pointer;line-height:1}
#qw-ok{text-align:center}
.hp{position:absolute;left:-9999px}

/* ===== Animaciones ===== */
@keyframes up{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes rise{from{opacity:0;transform:translateY(60px) scale(.96)}to{opacity:1;transform:none}}
@keyframes shine{0%,70%{background-position:120% 0}100%{background-position:-20% 0}}

/* Entrada del hero, escalonada */
.hero>*{animation:up .9s cubic-bezier(.2,.7,.2,1) both}
.hero>:nth-child(2){animation-delay:.08s}.hero>:nth-child(3){animation-delay:.16s}.hero>:nth-child(4){animation-delay:.24s}.hero>:nth-child(5){animation-delay:.32s}
.hero h1{background:linear-gradient(100deg,var(--text) 40%,#bfe3ff 50%,var(--text) 60%) 120% 0/250% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:up .9s .08s cubic-bezier(.2,.7,.2,1) both,shine 6s 1.2s ease-in-out infinite}
.lineup a{animation:rise 1s cubic-bezier(.2,.7,.2,1) both}
.lineup a:nth-child(1){animation-delay:.45s}.lineup a:nth-child(2){animation-delay:.55s}.lineup a:nth-child(3){animation-delay:.65s}.lineup a:nth-child(4){animation-delay:.75s}
.lineup a{transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.lineup a:hover{transform:translateY(-10px)}

/* Aparecer al hacer scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}

/* Tarjetas: brillo que sigue al cursor */
.tile,.pillar{position:relative;overflow:hidden}
.tile::after,.pillar::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .3s;background:radial-gradient(400px circle at var(--x,50%) var(--y,50%),rgba(41,151,255,.14),transparent 45%)}
.tile:hover::after,.pillar:hover::after{opacity:1}
.tile .well img{transition:transform .6s cubic-bezier(.2,.7,.2,1)}
.tile:hover .well img{transform:translateY(-6px) scale(1.04)}
.tile{transition:transform .5s cubic-bezier(.2,.7,.2,1),background .3s,opacity .8s cubic-bezier(.2,.7,.2,1)}
.tile:hover{transform:translateY(-6px)}

/* Botones con destello */
.btn{position:relative;overflow:hidden}
.btn::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-100%)}
.btn:hover::after{transform:translateX(100%);transition:transform .7s ease}
.btn:active{transform:scale(.97)}

.model .main img{transition:opacity .35s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .hero h1{color:var(--text);background:none}
}

/* ===== Botones vivos (todas las páginas) ===== */
.btn{transition:background .25s,transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s}
.btn:not([disabled]):hover{transform:translateY(-2px);box-shadow:0 10px 26px -8px rgba(10,132,255,.65)}
.btn.ghost:not([disabled]):hover{box-shadow:0 10px 26px -10px rgba(0,0,0,.6)}
.btn:not([disabled]):active{transform:translateY(0) scale(.96);transition-duration:.08s}
.ripple{position:absolute;border-radius:50%;background:rgba(255,255,255,.45);transform:scale(0);animation:ripple .6s ease-out forwards;pointer-events:none}
@keyframes ripple{to{transform:scale(1);opacity:0}}
.link{display:inline-block;transition:color .2s,transform .3s cubic-bezier(.2,.7,.2,1)}
.link:hover{transform:translateX(3px)}
nav ul a{position:relative}
nav ul a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:1.5px;background:var(--ice);border-radius:2px;transform:scaleX(0);transition:transform .3s cubic-bezier(.2,.7,.2,1)}
nav ul a:hover::after{transform:scaleX(1)}
.cart-btn{transition:background .2s,transform .3s cubic-bezier(.2,.7,.2,1)}
.cart-btn:hover{transform:rotate(-10deg) scale(1.1)}
.stepper button{transition:background .2s,transform .15s}
.stepper button:active{transform:scale(.8)}
.thumbs button{transition:transform .3s cubic-bezier(.2,.7,.2,1),border-color .2s}
.thumbs button:hover{transform:translateY(-3px)}
.qw-btn{transition:background .25s,transform .35s cubic-bezier(.2,.7,.2,1);animation:float 3.5s ease-in-out infinite}
.qw-btn:hover{transform:scale(1.06);animation-play-state:paused}
@keyframes float{0%,100%{translate:0 0}50%{translate:0 -5px}}
.qw-x{transition:transform .3s}.qw-x:hover{transform:rotate(90deg)}
.cats a{transition:background .2s,transform .3s cubic-bezier(.2,.7,.2,1)}.cats a:hover{transform:translateY(-2px)}

@media (prefers-reduced-motion:reduce){.qw-btn{animation:none}}

/* ===== Intro: el oso baja, el texto sube, se unen en una atmósfera fría ===== */
html.intro body{overflow:hidden}
html.intro body>:not(.intro-veil){visibility:hidden}
html.intro .hero>*,html.intro .lineup a{animation-play-state:paused}
.intro-veil{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:var(--bg);overflow:hidden;cursor:pointer;transition:opacity .7s cubic-bezier(.4,0,.2,1),visibility .7s}
.intro-veil.out{opacity:0;visibility:hidden}
.intro-logo{position:relative;width:min(300px,62vw);display:grid}
.intro-logo img{width:100%;height:auto}
.intro-bear{animation:bear 1.15s .15s cubic-bezier(.16,1,.3,1) both}
.intro-text{margin-top:4%;animation:word 1.15s .3s cubic-bezier(.16,1,.3,1) both}
@keyframes bear{from{opacity:0;transform:translateY(-70%) scale(.9);filter:blur(14px)}to{opacity:1;transform:none;filter:none}}
@keyframes word{from{opacity:0;transform:translateY(160%);filter:blur(10px);letter-spacing:.3em}to{opacity:1;transform:none;filter:none}}
/* destello helado recortado con la forma del logo */
.intro-shine{position:absolute;inset:0;-webkit-mask:url(img/logo.png) center/100% 100% no-repeat;mask:url(img/logo.png) center/100% 100% no-repeat;background:linear-gradient(105deg,transparent 35%,rgba(170,220,255,.95) 50%,transparent 65%) 160% 0/300% 100% no-repeat;animation:sweep 1s 1.35s ease-in-out both}
@keyframes sweep{from{background-position:160% 0}to{background-position:-60% 0}}
/* anillo de escarcha cuando se unen */
.intro-logo::after{content:"";position:absolute;left:50%;top:50%;width:120%;aspect-ratio:1;border-radius:50%;border:1.5px solid rgba(190,228,255,.6);translate:-50% -50%;scale:.6;opacity:0;animation:ring 1.4s 1.15s cubic-bezier(.16,1,.3,1) both}
@keyframes ring{0%{opacity:0;scale:.6}12%{opacity:.9}100%{opacity:0;scale:1.5}}
.intro-veil.out .intro-logo{transform:scale(1.08);transition:transform .7s cubic-bezier(.4,0,.2,1)}

/* Botón de WhatsApp para cotizar */
.wa-btn{background:#25d366;color:#04351b;font-weight:700;letter-spacing:.04em;padding:16px 28px;margin:4px 0 18px;animation:call 2.8s ease-in-out infinite}
.wa-btn:not([disabled]):hover{background:#2fe373;box-shadow:0 10px 26px -8px rgba(37,211,102,.65);animation-play-state:paused}
.wa-btn svg{transition:transform .5s cubic-bezier(.2,.7,.2,1)}.wa-btn:hover svg{transform:rotate(-12deg) scale(1.12)}
@keyframes call{0%,70%,100%{box-shadow:0 0 0 0 rgba(37,211,102,.55)}85%{box-shadow:0 0 0 12px rgba(37,211,102,0)}}
@media (prefers-reduced-motion:reduce){.wa-btn{animation:none}}

/* Celular: catálogo a dos columnas */
@media(max-width:600px){
  .grid4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:32px}
  .tile{padding:12px 10px 20px;border-radius:18px}
  .tile .well{height:170px;padding:12px;margin-bottom:14px;border-radius:12px}
  .tile .well img{max-height:140px}
  .tile h3{font-size:19px}
  .tile p{font-size:13px;margin:2px 0 10px}
  .tile .link{font-size:13px!important}
}