:root{
  /* Tokens: sustituir por la paleta y tipografía del cliente */
  --paper:#f2eee8; --paper-2:#e7e0d5; --ink:#111110; --ink-2:#4b453d; --mute:#6a6357; --mute-d:#b4ab9c; --accent-ink:#8f4f1d;
  --accent:#a65e28; --accent-2:#e0a367; --dark:#141311; --dark-2:#1f1d1a;
  --f-disp:'Bricolage Grotesque',system-ui,sans-serif; --f-body:'Instrument Sans',system-ui,sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
  --pad:clamp(20px,5vw,80px);
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:70px}
body{font-family:var(--f-body);background:var(--paper);color:var(--ink);font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
button{font:inherit;cursor:pointer}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:#000;padding:8px 14px;z-index:200}.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px}
.progress{position:fixed;top:0;left:0;height:3px;width:100%;background:var(--accent);transform:scaleX(0);transform-origin:left;z-index:120}

/* header */
.top{position:fixed;inset:0 0 auto 0;z-index:100;display:flex;align-items:center;gap:20px;padding:16px var(--pad);color:#fff;transition:background .4s,backdrop-filter .4s,padding .4s}
.top::before{content:"";position:absolute;inset:0;z-index:-2;background:rgba(20,19,17,.82);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);opacity:0;transition:opacity .4s;pointer-events:none}
.top.solid::before{opacity:1}
.top.solid{padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto;font-family:var(--f-disp);font-weight:600}
.logo-mark{display:grid;place-items:center;width:38px;height:38px;border:1.5px solid currentColor;border-radius:50%;font-size:14px}
.nav{display:flex;align-items:center;gap:26px}
.nav a{text-decoration:none;font-size:15px;opacity:.9;transition:opacity .2s}
.nav a:not(.btn):hover{opacity:1;color:var(--accent-2)}
.lang{display:flex;border:1px solid rgba(255,255,255,.4);border-radius:999px;overflow:hidden}
.lang button{background:none;border:0;color:#fff;padding:9px 16px;font-size:13px;font-weight:600}
.lang button[aria-pressed=true]{background:#fff;color:#111}
.burger{display:none;background:none;border:0;width:44px;height:44px;position:relative}
.burger span{position:absolute;left:10px;right:10px;height:2px;background:#fff;transition:transform .35s var(--ease)}
.burger span:first-child{top:18px}.burger span:last-child{top:26px}
.burger[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}
.burger[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 30px;background:var(--accent);color:#fff;border:0;border-radius:999px;font-weight:600;font-size:16px;text-decoration:none;transition:transform .3s var(--ease),background .2s,color .2s}
.btn:hover{background:#874a1d;transform:translateY(-2px)}
.btn:active{transform:scale(.97)}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px}
.btn-lg{min-height:60px;padding:0 40px;font-size:18px}
.btn-light{background:#fff;color:#111}.btn-light:hover{background:var(--paper-2)}
.btn-ghost{color:#fff;font-weight:600;text-decoration:none;border-bottom:1.5px solid rgba(255,255,255,.6);padding-bottom:3px}
.btn-ghost:hover{border-color:var(--accent-2)}
.btn-ghost-d{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}.btn-ghost-d:hover{background:rgba(255,255,255,.12)}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;color:#fff;overflow:hidden;background:#111}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.12);animation:hz 2.4s var(--ease) forwards}
@keyframes hz{to{transform:scale(1)}}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.45) 0%,rgba(0,0,0,.1) 35%,rgba(0,0,0,.75) 100%)}
.hero-in{position:relative;padding:130px var(--pad) clamp(56px,9vh,110px);max-width:1500px;width:100%}
h1,h2,h3{font-family:var(--f-disp);font-weight:600;letter-spacing:-.03em}
h1{font-size:clamp(44px,9.2vw,148px);line-height:.98;max-width:13em;margin-bottom:28px;text-wrap:balance}
.hero-sub{font-size:clamp(18px,1.7vw,24px);max-width:36em;opacity:.92;margin-bottom:34px}
.hero-cta{display:flex;align-items:center;gap:32px;flex-wrap:wrap}
.scroll-hint{position:absolute;right:var(--pad);bottom:40px;width:26px;height:44px;border:1.5px solid rgba(255,255,255,.7);border-radius:14px}
.scroll-hint span{position:absolute;left:50%;top:8px;width:3px;height:8px;margin-left:-1.5px;background:#fff;border-radius:2px;animation:sh 1.8s infinite}
@keyframes sh{0%{opacity:1;transform:translateY(0)}80%,100%{opacity:0;transform:translateY(16px)}}

.ticker{background:var(--accent);color:#fff;overflow:hidden;white-space:nowrap;padding:16px 0}
.ticker-track{display:inline-flex;animation:tk 32s linear infinite}
.ticker span{font-family:var(--f-disp);font-size:clamp(22px,3vw,36px);font-weight:600;padding:0 34px;position:relative}
.ticker span::after{content:"✦";position:absolute;right:-8px;opacity:.7}
@keyframes tk{to{transform:translateX(-50%)}}

/* sections */
.sec{padding:clamp(72px,12vw,170px) var(--pad)}
.sec-wide{padding-left:max(var(--pad),2vw);padding-right:max(var(--pad),2vw)}
.sec-wide .head{padding:0 calc(var(--pad) - 2vw)}
.sec-dark{background:var(--dark);color:#f2eee8}
.sec-accent{background:var(--dark-2);color:#f2eee8}
.kicker{font-size:14px;letter-spacing:.14em;text-transform:uppercase;font-weight:600;color:var(--accent-ink);margin-bottom:18px}
.sec-dark .kicker,.sec-accent .kicker{color:var(--accent-2)}
.big{font-size:clamp(36px,6.4vw,100px);line-height:1.02;max-width:14em;text-wrap:balance}
.huge{font-size:clamp(56px,13vw,210px);line-height:.9;color:var(--accent-ink);margin:6px 0 28px}
.head{margin-bottom:clamp(36px,6vw,80px)}
.head>p:not(.kicker){max-width:36em;margin-top:22px;color:#cfc7ba}
.placeholder{color:var(--mute);font-style:italic;font-size:14px}
.sec-dark .placeholder,.sec-accent .placeholder{color:#a89f90}

.about{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(32px,6vw,100px);align-items:center}
.about-txt p:not(.kicker){color:var(--ink-2);max-width:32em;margin-top:22px}
.about-img{overflow:hidden;border-radius:8px;aspect-ratio:4/5}
.about-img img,.logi-img img{width:100%;height:112%;object-fit:cover;will-change:transform}
.about-img{margin:0}

.svc{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:10px}
.svc-card{position:relative;display:block;aspect-ratio:3/4.2;overflow:hidden;border-radius:10px;color:#fff;text-decoration:none}
.svc-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.svc-card:hover img{transform:scale(1.08)}
.svc-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05) 30%,rgba(0,0,0,.82))}
.svc-card div{position:absolute;left:0;right:0;bottom:0;padding:26px;z-index:1}
.svc-card span{font-size:14px;opacity:.8}
.svc-card h3{font-size:clamp(26px,2.4vw,36px);margin:6px 0 10px}
.svc-card p{font-size:15px;opacity:.9;max-height:0;overflow:hidden;transition:max-height .5s var(--ease)}
.svc-card:hover p,.svc-card:focus-visible p{max-height:90px}
.svc-card b{display:inline-block;margin-top:12px;border-bottom:1.5px solid var(--accent-2);font-size:15px}
.svc+.placeholder,.proj+.placeholder,.tst+.placeholder{margin:22px calc(var(--pad) - 2vw) 0}

.sistema{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(32px,7vw,120px)}
.sticky-col{position:sticky;top:110px;align-self:start}
.steps{list-style:none;padding:0;counter-reset:s}
.steps li{counter-increment:s;border-top:1px solid rgba(255,255,255,.2);padding:34px 0 34px 90px;position:relative}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:30px;font-family:var(--f-disp);font-size:46px;color:var(--accent-2);line-height:1}
.steps h3{font-size:clamp(26px,2.8vw,38px);margin-bottom:8px}
.steps p{color:#cfc7ba;max-width:30em}

.proj{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.pc{position:relative;overflow:hidden;border-radius:10px;border:0;padding:0;background:#000;text-align:left;color:#fff;min-height:320px;grid-column:span 4}
.pc:nth-child(1){grid-column:span 7;min-height:520px}
.pc:nth-child(2){grid-column:span 5}
.pc:nth-child(3),.pc:nth-child(4){grid-column:span 6;min-height:380px}
.pc:nth-child(5){grid-column:span 5}
.pc:nth-child(6){grid-column:span 7}
.pc img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.pc:hover img{transform:scale(1.07)}
.pc::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.78))}
.pc span{position:absolute;left:22px;bottom:20px;z-index:1;font-family:var(--f-disp);font-size:clamp(22px,2.2vw,32px);font-weight:600;letter-spacing:-.02em}
.pc span small{display:block;font:500 14px var(--f-body);opacity:.8;margin-top:2px;letter-spacing:0}

.logi{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,100px);align-items:center;background:var(--paper-2)}
.logi-img{position:relative;margin:0;overflow:hidden;border-radius:8px;aspect-ratio:4/4.6}
.tag{position:absolute;left:14px;bottom:14px;background:rgba(0,0,0,.7);color:#fff;font-size:13px;padding:9px 16px;border-radius:999px;z-index:1}
.logi-txt p:not(.kicker){color:var(--ink-2);max-width:30em}

.tst{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px calc(var(--pad) - 2vw) 24px;-webkit-overflow-scrolling:touch}
.tc{flex:0 0 min(420px,84vw);scroll-snap-align:start;background:#fff;border-radius:12px;padding:34px;display:flex;flex-direction:column;gap:22px;min-height:320px;justify-content:space-between}
.tc q{font-family:var(--f-disp);font-size:clamp(22px,2vw,28px);line-height:1.25;letter-spacing:-.02em;quotes:none;color:var(--mute)}
.tc cite{font-style:normal;font-size:15px;color:var(--ink-2)}
.tc cite b{display:block;color:var(--ink)}

.tools{max-width:1240px}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.tabs button{background:transparent;color:#f2eee8;border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:12px 22px;font-size:16px;font-weight:600;transition:background .2s}
.tabs button[aria-selected=true]{background:var(--accent);border-color:var(--accent)}
.panel{background:rgba(255,255,255,.06);border-radius:16px;padding:clamp(22px,4vw,48px)}
.calc{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(24px,5vw,64px)}
.calc-in{display:grid;gap:24px}
.calc label,.survey label,.form label,.news label{display:grid;gap:8px;font-weight:600;font-size:15px}
input[type=range]{accent-color:var(--accent);width:100%}
select,input:not([type=checkbox]):not([type=range]),textarea{font:400 16px var(--f-body);padding:13px 14px;border-radius:8px;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.08);color:inherit;width:100%}
select option{color:#111}
.calc-out{background:var(--paper);color:var(--ink);border-radius:12px;padding:30px;display:grid;gap:10px;align-content:start}
.calc-out strong{font-family:var(--f-disp);font-size:clamp(30px,4vw,52px);letter-spacing:-.03em;line-height:1.05}
.calc-out small{color:var(--ink-2);font-size:13px}
.hint{margin:0 0 16px;color:#cfc7ba}
.styles{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.st{position:relative;border:2px solid transparent;border-radius:10px;overflow:hidden;padding:0;aspect-ratio:4/3;background:#000;color:#fff;text-align:left}
.st img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.st:hover img{transform:scale(1.06)}
.st span{position:absolute;left:12px;bottom:10px;font-weight:600;text-shadow:0 1px 8px #000}
.st[aria-pressed=true]{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(224,163,103,.35)}
.survey .step{display:none;gap:16px}.survey .step.on{display:grid}
.step-t{color:var(--accent-2);font-weight:600}
fieldset{border:0;padding:0;display:grid;gap:10px}legend{font-weight:600;margin-bottom:8px}
.chk{display:flex!important;align-items:center;gap:10px;font-weight:400!important}
.chk input{width:20px;height:20px;accent-color:var(--accent)}
.survey-nav{display:flex;justify-content:space-between;margin-top:20px}
.err{color:#ff9f90;font-size:14px;font-weight:500;min-height:0}
.ok{color:#9be3ae;font-weight:600;margin-top:12px}

.blog{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.blog article img{aspect-ratio:3/2;object-fit:cover;width:100%;border-radius:10px;margin-bottom:14px}
.blog h3{font-size:24px;color:var(--ink-2);font-weight:500}

.contact{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,100px)}
.nap{display:grid;gap:14px;margin:34px 0}
.nap div{display:grid;grid-template-columns:110px 1fr;gap:12px;border-top:1px solid rgba(255,255,255,.15);padding-top:12px}
.nap dt{color:var(--mute);font-size:14px}
.social{display:flex;gap:18px;flex-wrap:wrap;align-items:center;margin-bottom:26px}
.social span{border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:10px 18px;font-size:14px;opacity:.7}
.social small{color:var(--mute)}
.map{width:100%;height:280px;border:0;border-radius:12px;filter:grayscale(.6) invert(.9) contrast(.9)}
.form,.news{display:grid;gap:18px}
.news{margin-top:40px;padding-top:30px;border-top:1px solid rgba(255,255,255,.15)}
.form [aria-invalid=true]{border-color:#ff9f90}

.foot{background:#0c0b0a;color:#bdb4a6;font-size:14px;padding:32px var(--pad) 100px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

dialog{border:0;border-radius:14px;padding:0;max-width:min(1000px,94vw);width:100%;background:var(--dark);color:#fff;overflow:hidden}
dialog::backdrop{background:rgba(0,0,0,.8)}
dialog img{width:100%;aspect-ratio:3/2;object-fit:cover}
.pj-body{padding:24px 28px 28px}
.pj-x{position:absolute;right:12px;top:12px;width:44px;height:44px;border-radius:50%;border:0;background:rgba(0,0,0,.6);color:#fff;font-size:26px;z-index:2}
.ficha{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0}
.ficha dt{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--mute)}
.pj-nav{display:flex;justify-content:space-between}
.sticky-cta{display:none}

/* motion */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.split .w{display:inline-block;overflow:hidden;vertical-align:top;padding-bottom:.1em}
.split .w>span{display:inline-block;transform:translateY(110%);transition:transform 1s var(--ease);transition-delay:calc(var(--i)*70ms + 200ms)}
.split.in .w>span{transform:none}
.clip{clip-path:inset(0 0 100% 0);transition:clip-path 1.3s var(--ease)}
.clip.in{clip-path:inset(0)}

@media (max-width:1000px){
  .nav{position:fixed;inset:0;background:var(--dark);flex-direction:column;justify-content:center;gap:22px;font-size:26px;transform:translateY(-100%);visibility:hidden;transition:transform .5s var(--ease),visibility .5s;z-index:-1}
  .nav a{font-size:28px;font-family:var(--f-disp)}
  .nav .btn{font-size:18px}
  .nav.open{transform:none;visibility:visible}
  .burger{display:block}
  .about,.sistema,.logi,.contact,.calc{grid-template-columns:1fr}
  .sticky-col{position:static}
  .svc{grid-template-columns:1fr 1fr}
  .svc-card p{max-height:90px}
  .proj{grid-template-columns:1fr 1fr}
  .pc,.pc:nth-child(n){grid-column:span 1;min-height:240px}
  .pc:nth-child(1){grid-column:span 2;min-height:340px}
  .blog{grid-template-columns:1fr}
  .about-img{aspect-ratio:4/3}
}
@media (max-width:600px){
  body{font-size:17px}
  .svc,.proj{grid-template-columns:1fr}
  .pc:nth-child(n){grid-column:auto}
  .styles{grid-template-columns:1fr 1fr}
  .ficha{grid-template-columns:1fr 1fr}
  .steps li{padding-left:64px}.steps li::before{font-size:34px}
  .hero-in{padding-top:110px}
  .scroll-hint{display:none}
  .sticky-cta{display:flex;opacity:0;pointer-events:none;transition:opacity .3s;position:fixed;left:14px;right:14px;bottom:12px;z-index:90;min-height:54px;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-weight:600;border-radius:999px;text-decoration:none;box-shadow:0 12px 30px -8px rgba(0,0,0,.6)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.split .w>span,.clip{opacity:1;transform:none;clip-path:none;transition:none}
  .hero-bg img{animation:none;transform:none}
  .ticker-track,.scroll-hint span{animation:none}
  .svc-card img,.pc img,.st img{transition:none}
}

/* contraste en fondos oscuros */
.sec-dark .placeholder,.sec-accent .placeholder,.nap dt,.ficha dt,.social small,dialog .placeholder{color:var(--mute-d)}
.social span{opacity:1;color:#e8e0d3}
.svc-card span{opacity:1}
.hero-sub{opacity:1}

body.past .sticky-cta{opacity:1;pointer-events:auto}
.calc .lbl{display:block}