/* Motor visual compartido de las demos: scroll cinemático, teléfono 3D, palabras que se encienden y recorrido por capítulos.
   Cada página define sus colores y fuentes en :root. */
:root{--bg:#f6f4ef;--bg2:#0d0d0f;--ink:#121212;--ink2:#f4f2ec;--muted:#6b6b6b;--muted2:#8d8a83;--accent:#c6f432;--accent-ink:#0d0d0f;--display:system-ui,sans-serif;--body:system-ui,sans-serif;--pw:300px;--phone:#0b0b0c}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.55;overflow-x:clip}
img{max-width:100%;display:block}
a{color:inherit}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:99;background:#fff;padding:8px 12px}
.wrap{max-width:1200px;margin:auto;padding:0 24px}
@media(max-width:600px){.wrap{padding:0 16px}}

/* nav */
.nav{position:fixed;inset:0 0 auto 0;z-index:50;transition:background .3s,backdrop-filter .3s,box-shadow .3s}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.nav.solid{background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 1px 0 #0000000f}
.brand{font-family:var(--display);font-weight:800;font-size:22px;text-decoration:none;display:flex;align-items:center;gap:10px;letter-spacing:-.01em}
.brand .mk{width:30px;height:30px;border-radius:9px;background:var(--accent);display:grid;place-items:center;font-size:16px;color:var(--accent-ink)}
.nav .links{display:flex;gap:26px;font-size:15px}.nav .links a{text-decoration:none;opacity:.75}.nav .links a:hover{opacity:1}
@media(max-width:860px){.nav .links{display:none}}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:700;font-size:16px;padding:15px 22px;border-radius:14px;border:0;cursor:pointer;transition:transform .2s,box-shadow .2s;font-family:var(--body)}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px color-mix(in srgb,var(--accent) 45%,transparent)}
.btn.sm{padding:10px 16px;font-size:14px;border-radius:11px}
.btn.line{background:transparent;color:inherit;box-shadow:inset 0 0 0 1.5px currentColor}
.btn.line:hover{box-shadow:inset 0 0 0 1.5px currentColor}
.ticks{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;font-size:14px;color:var(--muted)}
.ticks span:before{content:"✓ ";color:var(--accent-text,var(--accent));font-weight:800}

/* teléfono */
.phone{position:relative;width:var(--pw);aspect-ratio:390/844;border-radius:calc(var(--pw)*.15);background:var(--phone);padding:calc(var(--pw)*.034);
  box-shadow:0 50px 90px -20px #0007,0 0 0 1px #ffffff14 inset;transform:translate3d(0,var(--ty,0),0) rotateX(var(--rx,0)) rotateY(var(--ry,0)) rotateZ(var(--rz,0)) scale(var(--s,1));transform-style:preserve-3d;will-change:transform}
.phone:before{content:"";position:absolute;top:calc(var(--pw)*.045);left:50%;width:28%;height:calc(var(--pw)*.07);background:var(--phone);border-radius:99px;transform:translateX(-50%);z-index:3}
.screen{position:relative;width:100%;height:100%;border-radius:calc(var(--pw)*.12);overflow:hidden;background:#fff}
.screen iframe{position:absolute;left:0;top:0;width:390px;border:0;transform-origin:0 0;transform:scale(var(--k,.75));background:#fff}
.screen.static iframe{pointer-events:none}
.screen:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(115deg,#ffffff2a 0%,transparent 28%);border-radius:inherit}
.screen.live:after{display:none}
.float{position:absolute;z-index:4;font-family:var(--display);font-weight:800;padding:10px 14px;border-radius:12px;box-shadow:0 18px 40px -10px #0006;white-space:nowrap;font-size:18px;transform:translate3d(0,var(--fy,0),0)}

/* hero */
.hero{height:210vh;position:relative}
.hero .pin{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
.stage{--pw:min(300px,calc(70vh * .462))}
.hero .pin>.wrap{height:100%;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:24px;padding-top:60px}
.kicker{display:inline-block;background:color-mix(in srgb,var(--accent) 22%,transparent);padding:7px 12px;border-radius:8px;font-size:14px;font-weight:600;margin-bottom:18px}
.hero h1{font-family:var(--display);font-size:clamp(48px,7.6vw,112px);line-height:.92;letter-spacing:-.045em;margin:0;font-weight:800}
.hero h1 .ac{color:var(--accent-text,var(--accent))}
.hero .lead{font-size:clamp(17px,1.6vw,21px);color:var(--muted);max-width:520px;margin:22px 0 28px}
.hero-copy{opacity:0;transform:translateY(30px);transition:opacity 1s .1s,transform 1s .1s}
.loaded .hero-copy{opacity:1;transform:none}
.hero-copy.scrolling{transition:none}
.stage{position:relative;height:100%;display:grid;place-items:center;perspective:1400px}
.shape{position:absolute;inset:auto -10% -12% 0;height:62%;background:var(--accent);clip-path:var(--clip,polygon(0 30%,50% 0,100% 30%,100% 100%,0 100%));transform-origin:50% 100%;z-index:-1;opacity:0;transition:opacity 1.2s .3s}
.loaded .shape{opacity:1}
.stage .phone{opacity:0;transition:opacity 1s .25s}
.loaded .stage .phone{opacity:1}
.scroll-hint{position:absolute;left:50%;bottom:24px;transform:translateX(-50%);font-size:13px;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-hint i{width:1.5px;height:34px;background:currentColor;animation:hint 1.8s infinite}
@keyframes hint{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
@media(max-width:860px){
 .hero{height:190vh}
 .hero .pin>.wrap{grid-template-columns:1fr;grid-template-rows:auto 1fr;padding-top:96px;gap:0;align-items:start}
 .hero h1{font-size:clamp(42px,12vw,64px)}
 .hero .lead{margin:14px 0 18px;font-size:16px}
 .stage{--pw:200px;align-items:start;padding-top:10px}
 .ticks{display:none}.scroll-hint{display:none}
 .float{font-size:14px;padding:7px 10px}
}

/* palabras que se encienden */
.words{height:230vh;background:var(--bg2);color:var(--ink2);position:relative}
.words .pin{position:sticky;top:0;height:100vh;height:100svh;display:grid;align-items:center}
.eyebrow{font-size:15px;font-weight:600;color:var(--accent-text-dark,var(--accent));margin-bottom:18px;display:block}
.statement{font-family:var(--display);font-size:clamp(30px,4.8vw,68px);line-height:1.08;letter-spacing:-.03em;font-weight:700;max-width:1050px;margin:0}
.statement .w{color:color-mix(in srgb,var(--ink2) 18%,transparent);transition:color .35s}
.statement .w.lit{color:var(--ink2)}.statement .w.hot{color:var(--accent-text-dark,var(--accent))}
.js-off .statement .w{color:inherit}

/* recorrido por capítulos */
.tour{background:var(--bg2);color:var(--ink2);position:relative}
.tour .pin{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
.tour .pin>.wrap{height:100%;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:30px}
.tour h2{font-family:var(--display);font-size:clamp(36px,5vw,72px);letter-spacing:-.04em;line-height:.95;margin:0 0 26px;font-weight:800}
.ch h3{margin:0;font-size:clamp(19px,1.8vw,24px);color:var(--muted2);transition:color .3s;font-family:var(--display);font-weight:700;letter-spacing:-.01em;padding:7px 0}
.ch p{margin:0;max-height:0;overflow:hidden;opacity:0;transition:max-height .5s,opacity .4s,margin .4s;color:color-mix(in srgb,var(--ink2) 80%,transparent);max-width:440px;font-size:16px}
.ch.on h3{color:var(--accent-text-dark,var(--accent))}.ch.on p{max-height:160px;opacity:1;margin:2px 0 10px}
.dots{display:flex;gap:8px;margin-top:30px}.dots i{width:28px;height:3px;background:#ffffff2e;border-radius:2px;transition:width .3s,background .3s}.dots i.on{width:52px;background:var(--accent-text-dark,var(--accent))}
.tour .stage{--pw:min(300px,calc(76vh * .462))}
.bignum{position:absolute;right:-4%;top:50%;transform:translateY(-50%);font-family:var(--display);font-weight:900;font-size:min(56vh,520px);line-height:1;color:transparent;-webkit-text-stroke:2px color-mix(in srgb,var(--ink2) 14%,transparent);z-index:0;pointer-events:none}
.glow{position:absolute;width:70%;aspect-ratio:1;border-radius:50%;background:radial-gradient(closest-side,color-mix(in srgb,var(--accent) 38%,transparent),transparent);filter:blur(10px);z-index:0}
.tour .phone{z-index:2;transition:transform .9s cubic-bezier(.2,.8,.2,1)}
@media(max-width:860px){
 .tour .pin>.wrap{grid-template-columns:1fr;grid-template-rows:auto 1fr;align-items:start;padding-top:92px;gap:6px}
 .tour .stage{--pw:180px;order:-1;height:auto;padding:8px 0}
 .tour h2{font-size:30px;margin:0 0 6px}
 .ch:not(.on){display:none}.ch.on p{max-height:200px}
 .bignum{font-size:46vh;right:-10%;top:28%}
 .dots{margin-top:12px}
}

/* pruébalo */
.try{padding:120px 0;background:var(--bg)}
.try .wrap{display:grid;grid-template-columns:1fr auto;gap:60px;align-items:center}
.try h2,.sec-title{font-family:var(--display);font-size:clamp(36px,5vw,68px);letter-spacing:-.04em;line-height:.95;margin:0 0 18px;font-weight:800}
.try .lead{color:var(--muted);font-size:19px;max-width:520px}
.try .phone{--pw:360px}
.try .open{margin-top:22px;display:inline-block;font-weight:600}
@media(max-width:860px){.try{padding:80px 0}.try .wrap{grid-template-columns:1fr;justify-items:center;gap:30px}.try .wrap>div:first-child{justify-self:stretch}.try .phone{--pw:min(330px,86vw)}}

/* precio */
.plans{padding:110px 0;background:color-mix(in srgb,var(--accent) 10%,var(--bg))}
.pgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:34px}
.plan{background:var(--bg);border-radius:24px;padding:28px;box-shadow:0 1px 0 #0000000d,0 20px 50px -30px #0004;position:relative}
.plan.hl{background:var(--bg2);color:var(--ink2)}
.plan h3{margin:0;font-size:20px;font-family:var(--display)}
.plan .amt{font-family:var(--display);font-size:48px;font-weight:800;letter-spacing:-.03em;margin:12px 0 0;line-height:1}
.plan .amt small{font-size:16px;font-weight:600;opacity:.6;letter-spacing:0}
.plan ul{padding:0;margin:18px 0 0;list-style:none;font-size:15px}.plan li{padding:6px 0;border-top:1px solid #8882}
.plan li:before{content:"✓  ";font-weight:800;color:var(--accent-text,var(--accent))}
.plan.hl li:before{color:var(--accent-text-dark,var(--accent))}
.note{font-size:13px;color:var(--muted);margin-top:16px}

/* cierre */
.final{background:var(--bg2);color:var(--ink2);padding:140px 0 120px;text-align:center;overflow:hidden;position:relative}
.final h2{font-family:var(--display);font-size:clamp(44px,8vw,120px);letter-spacing:-.05em;line-height:.9;margin:0 0 30px;font-weight:800}
.final h2 .ac{color:var(--accent-text-dark,var(--accent))}
.final p{color:var(--muted2);max-width:560px;margin:0 auto 34px;font-size:18px}
footer.foot{background:var(--bg2);color:var(--muted2);font-size:14px;padding:26px 0 40px;border-top:1px solid #ffffff12}
footer.foot .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
footer.foot a{color:var(--ink2)}

.rv{opacity:0;transform:translateY(34px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.rv.in{opacity:1;transform:none}
.no-js .rv,.no-js .hero-copy,.no-js .stage .phone,.no-js .shape{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
 .hero,.words{height:auto}.hero .pin,.words .pin{position:relative;height:auto;min-height:100vh}
 .tour{height:auto!important}.tour .pin{position:relative}
 .rv,.hero-copy,.stage .phone,.shape{opacity:1!important;transform:none!important;transition:none!important}
 .statement .w{color:var(--ink2)!important}.statement .w.hot{color:var(--accent-text-dark,var(--accent))!important}
 .scroll-hint i{animation:none}
}