/* Planto3D landing · noche cálida: tinta, ámbar de focos y rosa de marca */
[hidden]{display:none!important}
:root{
  --ink:#0b0a10; --ink2:#100e16; --card:#16131d; --card2:#1c1826; --line:#2b2635; --line2:#3a3346;
  --text:#f1eadf; --muted:#b0a7b8; --dim:#8a8293;
  --amber:#f5b25c; --amber2:#ffd08a; --rose:#cc3a6e; --rose2:#ff6f9c; --ok:#7fd1a6;
  --display:"Bricolage Grotesque",system-ui,sans-serif; --body:"Hanken Grotesk",system-ui,sans-serif; --mono:"IBM Plex Mono",ui-monospace,monospace;
  --r:18px; --ease:cubic-bezier(.16,1,.3,1);
  --z-nav:40; --z-float:30; --z-skip:100;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--ink);color:var(--text);font:17px/1.6 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--display);line-height:1.05;margin:0;letter-spacing:-.02em}
h2{font-size:clamp(34px,5vw,64px);font-weight:800;max-width:16ch}
h3{font-size:21px;font-weight:700;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:8px}
.wrap{width:min(1200px,100% - 40px);margin-inline:auto}
.narrow{width:min(860px,100% - 40px)}
.center{text-align:center}.center h2{margin-inline:auto}
section{padding:120px 0;position:relative}
.kicker{font:500 13px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--amber);margin-bottom:18px}
.sub{color:var(--muted);font-size:19px;max-width:60ch;margin-top:20px}
.note{color:var(--dim);font-size:14px;margin-top:14px;text-align:center}
.skip{position:fixed;left:16px;top:-60px;z-index:var(--z-skip);background:var(--amber);color:#111;padding:10px 16px;border-radius:10px;font-weight:700;text-decoration:none}
.skip:focus{top:16px}

/* ---------------------------------------------------------------- botones */
.btn{--bg:transparent;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:0 20px;border-radius:999px;border:1px solid transparent;
  font:700 16px/1 var(--body);text-decoration:none;cursor:pointer;color:var(--text);background:var(--bg);
  transition:transform .25s var(--ease),background .2s,border-color .2s,box-shadow .3s;touch-action:manipulation;white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn.primary{--bg:var(--rose);color:#fff;box-shadow:0 10px 30px -10px rgba(204,58,110,.8),inset 0 1px 0 rgba(255,255,255,.25)}
.btn.primary:hover{--bg:#d9447a;box-shadow:0 16px 40px -10px rgba(255,111,156,.85),inset 0 1px 0 rgba(255,255,255,.3)}
.btn.ghost{border-color:var(--line2);background:rgba(255,255,255,.03)}
.btn.ghost:hover{border-color:var(--amber);background:rgba(245,178,92,.08)}
.btn.sm{min-height:40px;padding:0 16px;font-size:15px}
.btn.lg{min-height:58px;padding:0 28px;font-size:18px}
.btn.lg small{font:500 13px/1 var(--mono);opacity:.85;padding-left:12px;border-left:1px solid rgba(255,255,255,.35)}
.btn.block{width:100%}

/* ---------------------------------------------------------------- nav */
.nav{position:fixed;inset:0 0 auto;z-index:var(--z-nav);display:flex;align-items:center;gap:24px;padding:14px max(20px,calc(50% - 600px));
  transition:background .3s,backdrop-filter .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(11,10,16,.78);backdrop-filter:blur(16px) saturate(1.3);-webkit-backdrop-filter:blur(16px) saturate(1.3);border-color:var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:800 22px/1 var(--display);letter-spacing:-.02em}
.brand b{color:var(--amber)}
.beta{font:500 10px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--rose2);border:1px solid rgba(255,111,156,.45);padding:4px 6px;border-radius:6px;font-style:normal}
.links{display:flex;gap:26px;margin-left:auto}
.links a{text-decoration:none;color:var(--muted);font-weight:500;font-size:15px;transition:color .2s}
.links a:hover{color:var(--text)}
.nav-actions{display:flex;align-items:center;gap:10px}
.lang{display:flex;border:1px solid var(--line2);border-radius:999px;padding:3px}
.lang button{all:unset;cursor:pointer;font:500 12px/1 var(--mono);padding:9px 10px;border-radius:999px;color:var(--muted);min-width:22px;text-align:center}
.lang button[aria-pressed="true"]{background:var(--text);color:var(--ink)}
.lang button:focus-visible{outline:2px solid var(--amber)}
@media (max-width:980px){.links{display:none}.nav{gap:12px}.nav-actions{margin-left:auto}}
@media (max-width:520px){.nav .btn.ghost{display:none}.brand span{font-size:19px}.beta{display:none}}

/* ---------------------------------------------------------------- hero */
.hero{padding:0;height:185svh;isolation:isolate}
.hero-pin{position:sticky;top:0;height:100svh;min-height:640px;display:flex;align-items:center;overflow:hidden}
@media (max-width:760px),(prefers-reduced-motion:reduce){.hero{height:auto}.hero-pin{position:relative;height:auto;min-height:100svh}}
.hero-fallback{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-3;opacity:0;transition:opacity .6s}
.no-webgl .hero-fallback{opacity:.75}
.hero-shade{position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(55% 80% at 0% 50%,rgba(11,10,16,.85) 25%,transparent 70%),linear-gradient(180deg,rgba(11,10,16,.4),transparent 25%,transparent 75%,var(--ink))}
.hero-inner{padding:140px 0 120px;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:500 13px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--amber2);
  padding:9px 14px;border:1px solid rgba(245,178,92,.35);border-radius:999px;background:rgba(245,178,92,.07)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 0 0 rgba(245,178,92,.7);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(245,178,92,0)}100%{box-shadow:0 0 0 0 rgba(245,178,92,0)}}
.hero h1{font-size:clamp(44px,7.4vw,104px);font-weight:800;max-width:12ch;margin:26px 0 24px;letter-spacing:-.035em}
.glow{background:linear-gradient(100deg,var(--amber2),var(--amber) 40%,var(--rose2));-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 30px rgba(245,178,92,.35))}
.lede{font-size:clamp(18px,1.6vw,21px);color:#d6cdc2;max-width:52ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-cta.center{justify-content:center}
.chips{list-style:none;padding:0;margin:40px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{font-size:14px;color:var(--muted);padding:9px 14px;border-radius:12px;background:rgba(22,19,29,.7);border:1px solid var(--line);backdrop-filter:blur(8px)}
.chips b{color:var(--text);font-family:var(--mono);font-weight:500}
.scroll-hint{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);font:500 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--dim);display:flex;flex-direction:column;align-items:center;gap:10px}
.scroll-hint i{width:1px;height:36px;background:linear-gradient(var(--amber),transparent);animation:drip 2s var(--ease) infinite}
@keyframes drip{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:760px){.hero-shade{background:linear-gradient(180deg,rgba(11,10,16,.3),rgba(11,10,16,.75) 45%,var(--ink) 92%)}.hero-inner{padding-top:120px}.scroll-hint{display:none}}

/* ---------------------------------------------------------------- showcase */
.showcase{padding-top:60px}
.showcase h2{max-width:20ch}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin:36px 0 22px}
.tabs button{all:unset;cursor:pointer;min-height:44px;padding:0 18px;display:inline-flex;align-items:center;border-radius:999px;border:1px solid var(--line2);color:var(--muted);font-weight:600;font-size:15px;transition:all .2s}
.tabs button:hover{color:var(--text);border-color:var(--amber)}
.tabs button[aria-selected="true"]{background:var(--text);color:var(--ink);border-color:var(--text)}
.tabs button:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.frame{margin:0;border-radius:22px;background:linear-gradient(180deg,#221d2c,#14111b);border:1px solid var(--line2);padding:0 10px 10px;
  box-shadow:0 60px 120px -40px rgba(204,58,110,.35),0 30px 80px -30px rgba(245,178,92,.25);transform-style:preserve-3d;transition:transform .5s var(--ease)}
.frame-bar{display:flex;align-items:center;gap:7px;height:38px;padding:0 6px}
.frame-bar i{width:11px;height:11px;border-radius:50%;background:#3a3346}
.frame-bar span{margin:0 auto;font:500 12px/1 var(--mono);color:var(--dim);padding:6px 14px;border-radius:8px;background:rgba(255,255,255,.04)}
.frame-img{position:relative;border-radius:14px;overflow:hidden;aspect-ratio:2000/1148;background:#0e0c13}
.frame-img img{width:100%;height:100%;object-fit:cover;transition:opacity .45s var(--ease),transform .8s var(--ease)}
.frame-img img.swap{opacity:0;transform:scale(1.02)}
.frame figcaption,.frame>figcaption{font-size:14px;color:var(--dim);padding:12px 6px 2px}
.hot{position:absolute;left:var(--x);top:var(--y);display:flex;flex-direction:column;gap:2px;padding:8px 12px 8px 26px;border-radius:12px;
  background:rgba(11,10,16,.82);border:1px solid rgba(245,178,92,.4);backdrop-filter:blur(6px);font-size:13px;line-height:1.25;
  opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease);pointer-events:none}
.hot::before{content:"";position:absolute;left:10px;top:13px;width:8px;height:8px;border-radius:50%;background:var(--amber);box-shadow:0 0 12px var(--amber)}
.hot b{font-weight:700}.hot em{font-style:normal;color:var(--muted);font-size:12px}
.frame.in .hot{opacity:1;transform:none}
.frame.in .hot:nth-of-type(2){transition-delay:.15s}.frame.in .hot:nth-of-type(3){transition-delay:.3s}.frame.in .hot:nth-of-type(4){transition-delay:.45s}
.frame.nohot .hot{opacity:0!important}
@media (max-width:760px){.hot{display:none}}

/* ---------------------------------------------------------------- video */
.video-box{margin-top:34px;border-radius:22px;overflow:hidden;border:1px solid var(--line2);background:#000;aspect-ratio:16/9;box-shadow:0 40px 100px -40px rgba(245,178,92,.35)}
.video-box video{width:100%;height:100%;display:block;object-fit:cover}
.video h2{max-width:none}

/* ---------------------------------------------------------------- how */
.steps{list-style:none;padding:0;margin:56px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{position:relative;padding:32px 28px;border-radius:var(--r);background:var(--card);border:1px solid var(--line);overflow:hidden;transition:transform .35s var(--ease),border-color .3s}
.step:hover{transform:translateY(-4px);border-color:var(--line2)}
.step .num{position:absolute;right:22px;top:18px;font:500 13px/1 var(--mono);color:var(--dim)}
.step svg{width:48px;height:48px;fill:none;stroke:var(--amber);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;margin-bottom:22px}
.step p{color:var(--muted);margin-top:10px;font-size:16px}
.step::after{content:"";position:absolute;inset:auto -40% -60% auto;width:220px;height:220px;border-radius:50%;background:radial-gradient(rgba(204,58,110,.18),transparent 70%);pointer-events:none}
@media (max-width:860px){.steps{grid-template-columns:1fr}}

/* ---------------------------------------------------------------- bento */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:56px}
.cell{border-radius:var(--r);background:var(--card);border:1px solid var(--line);padding:26px;transition:transform .35s var(--ease),border-color .3s,background .3s}
.cell:hover{transform:translateY(-3px);border-color:var(--line2);background:var(--card2)}
.cell svg{width:34px;height:34px;fill:none;stroke:var(--rose2);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;margin-bottom:16px}
.cell p{color:var(--muted);font-size:15px;margin-top:8px}
.cell.big{grid-column:span 2;grid-row:span 2;padding:0;overflow:hidden;display:flex;flex-direction:column}
.cell.big img{flex:1;object-fit:cover;width:100%;min-height:260px}
.cell.big .cell-text{padding:24px 26px}
@media (max-width:1000px){.bento{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.bento{grid-template-columns:1fr}.cell.big{grid-column:auto}}

/* ---------------------------------------------------------------- split */
.split-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:64px;align-items:center}
.split-grid.rev{grid-template-columns:1fr 1.15fr}
.split-media{position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line2);box-shadow:0 40px 100px -50px rgba(204,58,110,.45)}
.split-text p{color:var(--muted);font-size:18px;margin-top:20px}
.badge{position:absolute;left:14px;top:14px;font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:7px 10px;border-radius:8px;background:rgba(11,10,16,.8);color:var(--text);border:1px solid var(--line2)}
.ticks{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:12px}
.ticks li{position:relative;padding-left:32px;color:#ddd4c9}
.ticks li::before{content:"";position:absolute;left:0;top:4px;width:20px;height:20px;border-radius:50%;background:rgba(127,209,166,.15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m6 12 4 4 8-8' fill='none' stroke='%237fd1a6' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}
@media (max-width:900px){.split-grid,.split-grid.rev{grid-template-columns:1fr;gap:36px}.split-grid.rev .split-media{order:-1}}

/* ---------------------------------------------------------------- events */
.events{background:radial-gradient(60% 50% at 50% 0%,rgba(204,58,110,.14),transparent 70%)}
.setups{margin-top:44px}
.setup-switch{position:relative;display:inline-flex;padding:5px;border-radius:999px;background:var(--card);border:1px solid var(--line2);margin-bottom:22px}
.setup-switch button{all:unset;position:relative;z-index:1;cursor:pointer;min-height:44px;padding:0 20px;display:inline-flex;align-items:center;font-weight:700;font-size:15px;color:var(--muted);transition:color .3s}
.setup-switch button[aria-checked="true"]{color:var(--ink)}
.setup-switch button:focus-visible{outline:3px solid var(--amber);border-radius:999px}
.setup-switch .pill{position:absolute;top:5px;bottom:5px;left:5px;border-radius:999px;background:var(--amber);transition:transform .45s var(--ease),width .45s var(--ease)}
.setup-stage{position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line2);aspect-ratio:16/9;background:#0e0c13}
.setup-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.03);transition:opacity .7s var(--ease),transform 1.2s var(--ease)}
.setup-stage img.on{opacity:1;transform:none}
.ev-points{list-style:none;padding:0;margin:26px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ev-points li{padding:20px 22px;border-radius:var(--r);background:var(--card);border:1px solid var(--line);display:grid;gap:6px}
.ev-points span{color:var(--muted);font-size:15px}
@media (max-width:800px){.ev-points{grid-template-columns:1fr}}

/* ---------------------------------------------------------------- share */
.code{position:relative;margin-top:26px;border-radius:14px;background:#0f0d15;border:1px solid var(--line2);padding:18px 18px 18px 18px}
.code pre{margin:0;overflow:auto;font:13px/1.6 var(--mono);color:#e9c88f;padding-right:70px}
.code .btn{position:absolute;right:10px;top:10px}

/* ---------------------------------------------------------------- pricing */
.pricing{background:radial-gradient(50% 60% at 50% 40%,rgba(245,178,92,.08),transparent 70%)}
.pricing h2{max-width:18ch}
.plans{display:grid;grid-template-columns:repeat(2,minmax(0,420px));gap:22px;margin-top:52px}
.plan{position:relative;padding:34px 30px 30px;border-radius:24px;background:var(--card);border:1px solid var(--line2);display:flex;flex-direction:column;gap:16px;transition:transform .35s var(--ease)}
.plan:hover{transform:translateY(-4px)}
.plan.best{background:linear-gradient(180deg,#24182a,#16131d 60%);border-color:rgba(255,111,156,.55);box-shadow:0 40px 90px -40px rgba(204,58,110,.6)}
.ribbon{position:absolute;top:-13px;left:30px;font:500 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:8px 12px;border-radius:999px;background:var(--rose);color:#fff}
.price b{font:800 56px/1 var(--display);letter-spacing:-.03em}
.price span{font:500 14px var(--mono);color:var(--dim)}
.plan .ticks{margin:4px 0 6px}
.today{display:flex;justify-content:space-between;align-items:baseline;padding:14px 0;border-top:1px dashed var(--line2);color:var(--muted);font-size:15px}
.today b{font:700 22px var(--mono);color:var(--text)}
.fine{color:var(--muted);margin-top:30px;max-width:70ch}
.fine b{color:var(--text)}
.pay{display:flex;flex-wrap:wrap;align-items:center;gap:10px;color:var(--dim);font-size:14px;margin-top:16px}
@media (max-width:760px){.plans{grid-template-columns:1fr}}

/* ---------------------------------------------------------------- reqs */
.reqs .split-grid{align-items:start}
.checks{list-style:none;counter-reset:c;padding:0;margin:30px 0 0;display:grid;gap:14px}
.checks li{counter-increment:c;position:relative;padding:16px 18px 16px 58px;border-radius:14px;background:var(--card);border:1px solid var(--line);color:#ddd4c9}
.checks li::before{content:counter(c,decimal-leading-zero);position:absolute;left:18px;top:16px;font:500 14px/1.6 var(--mono);color:var(--amber)}
.disclaimer{padding:30px;border-radius:22px;border:1px solid rgba(245,178,92,.5);background:linear-gradient(180deg,rgba(245,178,92,.1),rgba(245,178,92,.02));color:var(--amber2);position:sticky;top:100px}
.disclaimer h3{margin:14px 0 12px;color:var(--text);font-size:24px}
.disclaimer p{color:#e2d8cb;font-size:16px;margin-top:12px}

/* ---------------------------------------------------------------- faq */
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:64px;font:700 20px/1.3 var(--display)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";width:14px;height:14px;flex:none;border-right:2px solid var(--amber);border-bottom:2px solid var(--amber);transform:rotate(45deg) translateY(-4px);transition:transform .3s var(--ease)}
.faq details[open] summary::after{transform:rotate(225deg) translateY(-2px)}
.faq details p{color:var(--muted);padding:0 0 22px;max-width:65ch}
.faq h2{margin-bottom:24px}

/* ---------------------------------------------------------------- final */
.final{padding-bottom:140px;background:radial-gradient(50% 70% at 50% 100%,rgba(204,58,110,.2),transparent 70%)}
.final p{color:var(--muted);font-size:19px;margin-top:18px}
.contact{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:44px}
.contact a{display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:0 18px;border-radius:999px;border:1px solid var(--line2);text-decoration:none;color:var(--text);transition:border-color .2s,background .2s}
.contact a:hover{border-color:var(--amber);background:rgba(245,178,92,.07)}

.foot{border-top:1px solid var(--line);padding:30px 0 100px;color:var(--dim);font-size:14px}
.foot-grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px}
.foot nav{display:flex;gap:18px}.foot a{text-decoration:none}.foot a:hover{color:var(--text)}

.wa-float{position:fixed;right:20px;bottom:20px;z-index:var(--z-float);width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:#25a35a;box-shadow:0 12px 30px -8px rgba(37,163,90,.7);transition:transform .25s var(--ease)}
.wa-float:hover{transform:scale(1.07)}
.sticky-cta{position:fixed;left:50%;bottom:20px;z-index:var(--z-float);display:flex;align-items:center;gap:16px;padding:8px 8px 8px 20px;border-radius:999px;background:rgba(22,19,29,.9);border:1px solid var(--line2);backdrop-filter:blur(14px);
  font-weight:600;font-size:15px;transform:translate(-50%,140%);transition:transform .5s var(--ease);box-shadow:0 20px 50px -20px #000}
.sticky-cta.show{transform:translate(-50%,0)}
@media (max-width:640px){.sticky-cta span{display:none}.sticky-cta{padding:6px;left:auto;right:88px;transform:translateY(140%)}.sticky-cta.show{transform:none}}

/* ---------------------------------------------------------------- entradas */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}
.split-grid>*,.bento>*,.plans>*,.steps>*{min-width:0}
.code pre{white-space:pre;max-width:100%}
@media (max-width:420px){.nav{padding:12px 14px}.nav-actions{gap:6px}.lang button{padding:9px 7px}.brand{gap:7px}.nav .btn.sm{padding:0 12px}}

/* ---------------------------------------------------------------- hero con video por scroll */
.hero{height:440svh}
.hero-pin{min-height:560px}
#heroSeq,#heroFx{position:absolute;inset:0;width:100%;height:100%;display:block}
#heroSeq{z-index:-3;background:#07060a}
#heroFx{z-index:-2;pointer-events:none;mix-blend-mode:screen}
.hero .hero-shade{background:radial-gradient(60% 80% at 0% 55%,rgba(7,6,10,.82) 15%,transparent 65%),linear-gradient(180deg,rgba(7,6,10,.55),transparent 22%,transparent 70%,rgba(7,6,10,.9))}
.hero-inner,.chapter{will-change:opacity,transform}
.chapter{position:absolute;left:max(20px,calc(50% - 600px));bottom:14svh;max-width:min(560px,100% - 40px);opacity:0;transform:translateY(30px);pointer-events:none}
.chapter.on{pointer-events:auto}
.chapter .num{font:500 14px/1 var(--mono);color:var(--amber);letter-spacing:.2em}
.chapter h2{font-size:clamp(38px,5.4vw,76px);margin:14px 0 14px;max-width:13ch;text-shadow:0 4px 40px rgba(0,0,0,.6)}
.chapter p{font-size:19px;color:#e6ddd1;text-shadow:0 2px 20px rgba(0,0,0,.7)}
.final-ch .hero-cta{margin-top:24px}
.seq-progress{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(255,255,255,.06)}
.seq-progress i{display:block;height:100%;width:100%;transform-origin:left;transform:scaleX(0);background:linear-gradient(90deg,var(--amber),var(--rose2))}
.seq-note{position:absolute;right:16px;bottom:14px;font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.4)}
.demo-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px 22px;margin-top:26px}
.demo-row .muted{color:var(--muted);font-size:15px;max-width:42ch}
@media (max-width:760px){
  .hero{height:360svh}
  .hero-pin{position:sticky;top:0;height:100svh;min-height:0}
  .hero .hero-shade{background:linear-gradient(180deg,rgba(7,6,10,.65),rgba(7,6,10,.2) 35%,rgba(7,6,10,.2) 55%,rgba(7,6,10,.92))}
  .hero-inner{padding-top:96px}
  .chapter{bottom:10svh}
}
@media (prefers-reduced-motion:reduce){
  .hero{height:auto}.hero-pin{position:relative;height:auto;min-height:100svh}
  .chapter,.seq-progress,.scroll-hint{display:none}
}
.hero .hero-inner{padding:96px 0 40px}
.hero h1{font-size:min(7vw,10.5svh,96px);margin:20px 0 18px}
.hero .lede{font-size:min(19px,2.6svh)}
.hero .hero-cta{margin-top:26px}
.hero .chips{margin-top:26px}
@media (max-height:860px){.hero .chips,.hero .scroll-hint{display:none}}
.hero .hero-shade{background:radial-gradient(65% 85% at 0% 55%,rgba(7,6,10,.9) 22%,rgba(7,6,10,.35) 55%,transparent 72%),linear-gradient(180deg,rgba(7,6,10,.55),transparent 22%,transparent 70%,rgba(7,6,10,.9))}
@media (max-width:760px){.hero .hero-shade{background:linear-gradient(180deg,rgba(7,6,10,.7),rgba(7,6,10,.35) 40%,rgba(7,6,10,.35) 55%,rgba(7,6,10,.92))}}
@media (max-width:520px){
  .btn.lg{white-space:normal;flex-wrap:wrap;row-gap:4px;padding:12px 22px;max-width:100%}
  .btn.lg small{border-left:0;padding-left:0;flex-basis:100%;text-align:center}
}