@import url('https://fonts.googleapis.com/css2?family=Anton&family=Archivo:wght@400;500;700&family=Space+Mono:wght@400;700&display=swap');

:root{
  --ink:#0e1112;
  --ink-2:#161b1d;
  --ink-3:#222a2d;
  --lime:#c6ff3d;
  --bone:#f4f5f0;
  --steel:#8a9599;
  --rail:84px;
  --display:'Anton','Impact','Arial Narrow',sans-serif;
  --body:'Archivo','Segoe UI',Arial,sans-serif;
  --mono:'Space Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:var(--ink);color:var(--bone);line-height:1.6;padding-left:var(--rail)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--display);font-weight:400;text-transform:uppercase;line-height:.95;letter-spacing:.01em}
.wrap{width:min(1100px,90%);margin-inline:auto}
.mono{font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--lime)}

/* riel lateral */
.rail{position:fixed;left:0;top:0;bottom:0;width:var(--rail);background:var(--ink-2);border-right:1px solid var(--ink-3);display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:22px 0;z-index:80}
.rail .logo img{width:42px;height:42px}
.rail ul{list-style:none;display:flex;flex-direction:column;gap:30px;writing-mode:vertical-rl;transform:rotate(180deg)}
.rail a{font-family:var(--mono);font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;color:var(--steel);transition:color .2s;position:relative;padding:2px 0}
.rail a:hover,.rail a.active{color:var(--lime)}
.rail a.active::before{content:"";position:absolute;right:-12px;top:0;bottom:0;width:3px;background:var(--lime)}
.rail .tel{writing-mode:vertical-rl;transform:rotate(180deg);font-family:var(--mono);font-size:.7rem;color:var(--steel)}
.menu-btn{display:none}

.btn{display:inline-flex;align-items:center;gap:10px;background:var(--lime);color:var(--ink);font-family:var(--display);text-transform:uppercase;letter-spacing:.04em;font-size:1.1rem;padding:16px 30px;border:0;cursor:pointer;clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));transition:transform .2s,background .2s}
.btn:hover{transform:translateX(5px);background:#fff}
.btn.line{background:transparent;color:var(--lime);box-shadow:inset 0 0 0 2px var(--lime)}
.btn.line:hover{background:var(--lime);color:var(--ink)}

/* hero */
.hero{min-height:100vh;display:grid;grid-template-columns:1.25fr .75fr;align-items:center;position:relative;overflow:hidden;padding:60px 5% 60px 6%;background:radial-gradient(circle at 80% 30%,#1d2a14 0,transparent 55%)}
.hero h1{font-size:clamp(4rem,12vw,10rem);margin:18px 0 26px}
.hero h1 span{color:var(--lime);display:block}
.hero h1 s{text-decoration-thickness:.07em;text-decoration-color:var(--lime);color:var(--steel)}
.hero p{max-width:480px;color:#c8d0d3;font-size:1.1rem;margin-bottom:34px}
.hero .btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-img{position:relative}
.hero-img img{width:100%;max-height:86vh;margin-inline:auto;animation:sway 7s ease-in-out infinite;transform-origin:50% 90%}
@keyframes sway{50%{transform:rotate(-3deg) translateY(-10px)}}
.scrollhint{position:absolute;left:6%;bottom:26px}

/* banda */
.strip{background:var(--lime);color:var(--ink);overflow:hidden;white-space:nowrap;border-block:2px solid var(--ink)}
.strip div{display:inline-block;padding:12px 0;font-family:var(--display);font-size:1.5rem;text-transform:uppercase;animation:scroll 22s linear infinite}
.strip span{margin:0 26px}
@keyframes scroll{to{transform:translateX(-50%)}}

section{padding:110px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap;margin-bottom:50px}
.sec-head h2{font-size:clamp(2.8rem,7vw,5.4rem);max-width:700px}
.sec-head p{max-width:340px;color:var(--steel)}

/* antes / después */
.ba{position:relative;aspect-ratio:16/8;min-height:300px;overflow:hidden;border:2px solid var(--ink-3);user-select:none;touch-action:none;cursor:ew-resize}
.pane{position:absolute;inset:0;display:flex;align-items:flex-end;padding:22px;font-family:var(--display);font-size:2rem;text-transform:uppercase}
.wet{background:
  radial-gradient(ellipse 18% 24% at 20% 40%,rgba(255,255,255,.28),transparent 70%),
  radial-gradient(ellipse 14% 20% at 55% 65%,rgba(255,255,255,.22),transparent 70%),
  radial-gradient(ellipse 20% 22% at 82% 35%,rgba(255,255,255,.26),transparent 70%),
  repeating-linear-gradient(90deg,#2b4a55 0 118px,#274350 118px 120px),#2b4a55;color:#bde3f0}
.dry{background:
  linear-gradient(115deg,transparent 40%,rgba(255,255,255,.18) 48%,transparent 56%),
  repeating-linear-gradient(90deg,#5f7a85 0 118px,#587380 118px 120px),#5f7a85;color:var(--lime);clip-path:inset(0 0 0 50%);justify-content:flex-end}
.handle{position:absolute;top:0;bottom:0;left:50%;width:4px;background:var(--lime);transform:translateX(-2px);pointer-events:none}
.handle::after{content:"◀ ▶";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--lime);color:var(--ink);font-size:.8rem;padding:12px 10px;white-space:nowrap;font-family:var(--mono);font-weight:700}
.ba-note{margin-top:14px;color:var(--steel);font-size:.9rem}

/* modelos */
.models{border-top:1px solid var(--ink-3)}
.model{border-bottom:1px solid var(--ink-3)}
.mhead{width:100%;display:grid;grid-template-columns:70px 1fr auto 40px;gap:20px;align-items:center;padding:26px 6px;background:none;border:0;color:var(--bone);cursor:pointer;text-align:left;font:inherit;transition:background .2s,padding .2s}
.mhead:hover{background:var(--ink-2);padding-inline:18px}
.mhead .n{font-family:var(--mono);color:var(--lime);font-size:.9rem}
.mhead h3{font-size:clamp(1.8rem,4vw,3rem)}
.mhead .w{font-family:var(--mono);color:var(--steel);font-size:.85rem}
.mhead .pl{font-family:var(--display);font-size:2rem;color:var(--lime);transition:transform .3s;text-align:center}
.model.open .pl{transform:rotate(45deg)}
.mbody{max-height:0;overflow:hidden;transition:max-height .5s ease}
.mbody .in{display:grid;grid-template-columns:260px 1fr;gap:34px;padding:10px 6px 40px 90px;align-items:center}
.tile{background:var(--bone);aspect-ratio:6/5;display:grid;place-items:center;padding:14px}
.tile img{width:100%}
.specs{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px 26px;margin:14px 0 22px}
.specs li{border-left:3px solid var(--lime);padding-left:12px;font-size:.92rem;color:#c8d0d3}
.specs b{display:block;font-family:var(--mono);font-size:.7rem;color:var(--lime);text-transform:uppercase;letter-spacing:.1em}

/* selector */
.pick{background:var(--bone);color:var(--ink)}
.pick .sec-head p{color:#4b5559}
.pick .mono{color:#4b6b00}
.quiz{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.q h3{font-size:1.5rem;margin:0 0 14px}
.opts{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.opt{font-family:var(--mono);font-size:.82rem;text-transform:uppercase;padding:13px 18px;border:2px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer;transition:.15s}
.opt:hover{background:#e3e6dc}
.opt.on{background:var(--ink);color:var(--lime)}
.answer{background:var(--ink);color:var(--bone);padding:34px;display:flex;flex-direction:column;justify-content:center;min-height:300px;border-left:10px solid var(--lime)}
.answer h3{font-size:3rem;color:var(--lime);margin:8px 0 12px}
.answer p{color:#c8d0d3}

/* números */
.nums{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--ink-3);border:1px solid var(--ink-3)}
.num{background:var(--ink);padding:34px 24px}
.num b{font-family:var(--display);font-size:clamp(2.6rem,5vw,4rem);color:var(--lime);display:block;line-height:1}
.num span{color:var(--steel);font-size:.9rem}

/* contacto */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:60px}
.contact h2{font-size:clamp(3rem,7vw,5.4rem);margin:10px 0 20px}
.contact p{color:var(--steel);max-width:360px}
.data{margin-top:30px;font-family:var(--mono);font-size:.85rem;color:#c8d0d3;line-height:2}
form{display:grid;gap:18px}
label{font-family:var(--mono);font-size:.74rem;text-transform:uppercase;letter-spacing:.1em;color:var(--lime);display:block;margin-bottom:6px}
input,select,textarea{width:100%;background:var(--ink-2);border:1px solid var(--ink-3);border-bottom:3px solid var(--steel);color:var(--bone);font:inherit;padding:14px;border-radius:0;transition:border-color .2s}
input:focus,select:focus,textarea:focus{outline:0;border-bottom-color:var(--lime)}
select option{background:var(--ink-2)}
.err{color:#ff7a5c;font-size:.78rem;min-height:1em;font-family:var(--mono)}
.sent{display:none;border:2px solid var(--lime);padding:16px;font-family:var(--mono);font-size:.85rem;color:var(--lime)}

footer{border-top:1px solid var(--ink-3);padding:34px 0;color:var(--steel);font-family:var(--mono);font-size:.78rem}
footer .wrap{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}

@media(max-width:900px){
  body{padding-left:0;padding-top:62px}
  .rail{top:0;bottom:auto;left:0;right:0;width:100%;height:62px;flex-direction:row;padding:0 18px;border-right:0;border-bottom:1px solid var(--ink-3)}
  .rail .tel{display:none}
  .rail ul{writing-mode:horizontal-tb;transform:none;position:absolute;top:62px;left:0;right:0;flex-direction:column;gap:0;background:var(--ink-2);max-height:0;overflow:hidden;transition:max-height .35s;border-bottom:1px solid var(--ink-3)}
  .rail ul.open{max-height:360px}
  .rail li a{display:block;padding:16px 20px}
  .rail a.active::before{display:none}
  .menu-btn{display:block;background:none;border:2px solid var(--lime);color:var(--lime);font-family:var(--mono);padding:8px 12px;cursor:pointer}
  .hero{grid-template-columns:1fr;min-height:auto;padding:60px 6% 90px}
  .hero-img{max-width:300px;margin:30px auto 0}
  .scrollhint{display:none}
  .mhead{grid-template-columns:40px 1fr 30px}
  .mhead .w{display:none}
  .mbody .in{grid-template-columns:1fr;padding-left:6px}
  .quiz,.contact{grid-template-columns:1fr}
  .nums{grid-template-columns:1fr 1fr}
  .specs{grid-template-columns:1fr}
}