/* Estilos de la portada (todas las versiones de idioma). */
:root{
  color-scheme: light;
  --bg:#ffffff;
  --surface:#f5f5f4;
  --ink:#0b0b0c;
  --ink-soft:#6b6b70;
  --line:rgba(11,11,12,.1);
  --oak:#2f49d1;
  --btn-bg:#0b0b0c;
  --btn-ink:#ffffff;
  --frame:#ecebe8;
  --ok:#1f7a4d;
  --serif:"Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sans:"Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:"Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --gutter:clamp(16px, 4vw, 40px);
  --max:1180px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --bg:#0b0b0c; --surface:#161618; --ink:#f2f2f0; --ink-soft:#9d9da3;
    --line:rgba(242,242,240,.12); --oak:#8497ff; --btn-bg:#f2f2f0; --btn-ink:#0b0b0c;
    --frame:#1c1c1f; --ok:#6fcf9b;
  }
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --bg:#0b0b0c; --surface:#161618; --ink:#f2f2f0; --ink-soft:#9d9da3;
    --line:rgba(242,242,240,.12); --oak:#8497ff; --btn-bg:#f2f2f0; --btn-ink:#0b0b0c;
    --frame:#1c1c1f; --ok:#6fcf9b;
}

[hidden]{display:none!important}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16.5px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:500;letter-spacing:-.035em;text-wrap:balance;margin:0}
p{margin:0}
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:500 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
.eyebrow::before{content:"";width:6px;height:16px;border-radius:1.5px;background:var(--chip, var(--oak))}
:focus-visible{outline:2px solid var(--oak);outline-offset:3px;border-radius:4px}

/* botones */
.btn{display:inline-flex;align-items:center;gap:12px;border-radius:10px;padding:13px 20px;font:600 15px/1 var(--sans);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .15s, background .2s}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--btn-bg);color:var(--btn-ink)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--surface)}

/* cabecera */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb, var(--bg) 86%, transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.logo{display:flex;align-items:baseline;gap:8px;text-decoration:none}
.logo strong{font:600 20px/1 var(--sans);letter-spacing:-.04em}
.logo span{font:500 11px/1 var(--mono);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft)}
.nav{display:flex;gap:28px;font-size:14.5px;font-weight:500}
.nav a{text-decoration:none;color:var(--ink-soft)}
.nav a:hover{color:var(--ink)}
.top .btn{padding:10px 16px;font-size:14px}
.top .btn{white-space:nowrap}
@media (max-width:820px){ .nav{display:none} }
@media (max-width:420px){ .logo span{display:none} }

/* hero */
.hero{position:relative;height:clamp(680px,calc(100vh - 64px),1000px);overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg)}
.wallbox{position:absolute;inset:0}
#wall{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:pan-y}
.wall-fade{display:none}
.hero-veil{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(to bottom, color-mix(in srgb, var(--bg) 90%, transparent) 0%, color-mix(in srgb, var(--bg) 82%, transparent) 36%, color-mix(in srgb, var(--bg) 30%, transparent) 54%, transparent 68%)}
.hero-inner{position:absolute;inset:0 0 auto 0;z-index:2;padding-top:clamp(36px,6vh,72px);display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:24px clamp(32px,5vw,72px);align-items:end;pointer-events:none}
.hero-inner a{pointer-events:auto}
.hero-title{display:grid;gap:18px;justify-items:start}
.hero h1{font-size:clamp(40px,4.7vw,76px);line-height:.95;letter-spacing:-.056em;font-weight:600;max-width:15ch}
.hero h1 em{font-style:normal;color:var(--ink-soft)}
.hero-side{display:grid;gap:20px;padding-bottom:8px}
.hero .lead{font-size:17.5px;color:var(--ink-soft);max-width:38ch}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px}
.hero-hint{position:absolute;left:var(--gutter);bottom:18px;z-index:3;margin:0;font:500 12px/1 var(--mono);color:var(--ink-soft);background:color-mix(in srgb, var(--bg) 88%, transparent);padding:8px 10px;border-radius:6px;transition:opacity .3s}
.hero.focus .hero-hint{opacity:0}
.styler{position:absolute;right:var(--gutter);bottom:18px;z-index:3;display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:12px;background:color-mix(in srgb, var(--bg) 88%, transparent);backdrop-filter:blur(10px);border:1px solid var(--line);transition:opacity .3s}
.styler button{width:22px;height:22px;border-radius:50%;border:1px solid rgba(0,0,0,.18);background:var(--sw);cursor:pointer;padding:0;flex:none}
.styler button[aria-pressed="true"]{outline:2px solid var(--ink);outline-offset:2px}
.st-label{font:500 11px/1 var(--mono);text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft)}
.st-sep{width:1px;height:18px;background:var(--line);margin:0 4px}
.hero.focus .styler{opacity:0;pointer-events:none}
.hero.no3d .styler,.hero.no3d .hero-hint{display:none}

.tip3d{position:absolute;z-index:4;pointer-events:none;background:var(--ink);color:var(--bg);border-radius:8px;padding:8px 11px;font:600 13px/1.3 var(--sans);transform:translate(14px,16px);white-space:nowrap;box-shadow:0 12px 30px -14px rgba(0,0,0,.45)}
.tip3d small{display:block;font:400 11.5px/1.4 var(--mono);opacity:.72}
.bookcard{position:absolute;z-index:5;right:var(--gutter);bottom:28px;width:min(340px, calc(100% - 32px));background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:20px 20px 18px;display:grid;gap:4px;box-shadow:0 30px 70px -32px rgba(0,0,0,.4)}
.bc-sec{display:inline-flex;align-items:center;gap:8px;font:500 11.5px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:6px}
.bc-sec i{width:6px;height:14px;border-radius:1.5px;background:var(--chip, var(--oak))}
.bookcard h3{font-size:26px;line-height:1.05;letter-spacing:-.04em;padding-right:28px}
.bc-author{color:var(--ink-soft);font-size:15px}
.bc-buy{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px}
.bc-buy strong{font:500 26px/1 var(--sans);letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.bc-buy .btn{padding:11px 16px;font-size:14px}
.bc-close{position:absolute;top:10px;right:10px;width:32px;height:32px;border:0;border-radius:8px;background:transparent;color:var(--ink-soft);font-size:18px;cursor:pointer}
.bc-close:hover{background:var(--surface);color:var(--ink)}
.toast3d{position:absolute;z-index:6;left:50%;top:18px;transform:translate(-50%,-8px);opacity:0;background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:8px;font:600 13.5px/1 var(--sans);pointer-events:none;transition:.25s;white-space:nowrap}
.toast3d.on{opacity:1;transform:translate(-50%,0)}
.hero.no3d{height:auto}
.hero.no3d .hero-inner{position:relative;padding-block:72px}
.compare{position:relative;display:grid;grid-template-rows:auto auto 1fr;aspect-ratio:16/9.4;width:100%;max-width:100%;border-radius:14px;overflow:hidden;user-select:none;-webkit-user-select:none;background:var(--surface);box-shadow:0 0 0 1px var(--line), 0 40px 80px -50px rgba(0,0,0,.35)}
.compare .chrome,.compare .shop{background:#fff;color:#0b0b0c}
.split{position:relative;min-height:0;overflow:hidden}
.pane{position:absolute;inset:0;display:grid;background:#fff;color:#0b0b0c}
.pane.after{clip-path:inset(0 0 0 var(--pos,50%))}
.compare .chrome{background:#f1f1f0}
.chrome{display:flex;align-items:center;gap:12px;padding:10px 14px;background:#f1f1f0;border-bottom:1px solid rgba(0,0,0,.08)}
.dots{display:flex;gap:6px}.dots i{width:10px;height:10px;border-radius:50%;background:#d6d6d4}
.url{flex:1;max-width:420px;margin-inline:auto;background:#fff;border-radius:7px;padding:6px 12px;font:500 12px/1 var(--mono);color:#6b6b70;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}
.shop{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px clamp(14px,2.4vw,28px);border-bottom:1px solid rgba(0,0,0,.08)}
.shop strong{font:600 clamp(14px,1.5vw,18px)/1 var(--sans);letter-spacing:-.03em}
.shop nav{display:flex;gap:clamp(10px,1.6vw,22px);font:500 clamp(11px,1vw,13px)/1 var(--sans);color:#6b6b70}
.shop nav b{color:#0b0b0c;font-weight:600;border-bottom:2px solid #0b0b0c;padding-bottom:4px}
.shop .cartpill{font:500 12px/1 var(--sans);border:1px solid rgba(0,0,0,.14);border-radius:999px;padding:6px 10px}
.page{padding:clamp(14px,2.2vw,26px) clamp(14px,2.4vw,28px) 0;overflow:hidden;display:grid;grid-template-rows:auto 1fr;gap:clamp(10px,1.6vw,18px);min-height:0}
.page-head{display:flex;justify-content:space-between;align-items:end;gap:12px}
.page-head h4{margin:0;font:600 clamp(16px,2vw,24px)/1 var(--sans);letter-spacing:-.04em}
.page-head small{display:block;margin-top:6px;font:500 11px/1 var(--mono);color:#6b6b70}
.sortbox{font:500 12px/1 var(--sans);border:1px solid rgba(0,0,0,.14);border-radius:7px;padding:7px 10px;color:#3a3a3f;white-space:nowrap}
.cmp-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:clamp(10px,1.6vw,20px);align-content:start;min-height:0}
.cmp-card{display:grid;gap:5px;min-width:0}
.cmp-cover{position:relative;aspect-ratio:2/3;border-radius:2px 4px 4px 2px;overflow:hidden;display:grid;padding:9%;align-content:space-between;box-shadow:inset 4px 0 0 rgba(0,0,0,.12), 0 6px 14px -8px rgba(0,0,0,.35)}
.cmp-cover .ca{font:500 clamp(6px,.62vw,8px)/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;opacity:.8}
.cmp-cover .ct{font:600 clamp(9px,1.05vw,14px)/1.05 var(--sans);letter-spacing:-.03em}
.cmp-cover .sh{position:absolute;left:50%;top:44%;width:46%;aspect-ratio:1;transform:translate(-50%,-50%);border-radius:50% 50% 0 0}
.cmp-cover .bd{position:absolute;left:0;right:0;top:40%;height:22%}
.cmp-card b{font:500 clamp(10px,.95vw,12.5px)/1.25 var(--sans);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cmp-card span{font:500 11px/1 var(--mono);color:#6b6b70}
.view{position:relative;overflow:hidden;background:#f4f4f3;min-height:0}
.view img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.view .cmp-shelf{position:absolute;inset:0;padding:18px;display:grid;grid-template-rows:repeat(3,minmax(0,1fr))}
.view img[src] + .cmp-shelf{display:none}
.minicard{position:absolute;right:clamp(10px,2vw,22px);bottom:clamp(44px,5vw,56px);width:min(250px,44%);background:#fff;border-radius:12px;padding:14px;display:grid;gap:3px;box-shadow:0 20px 40px -18px rgba(0,0,0,.45)}
.minicard small{font:500 10px/1 var(--mono);text-transform:uppercase;letter-spacing:.06em;color:#6b6b70}
.minicard strong{font:600 clamp(14px,1.5vw,18px)/1.1 var(--sans);letter-spacing:-.03em}
.minicard em{font-style:normal;font-size:12.5px;color:#6b6b70}
.minicard div{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font:500 15px/1 var(--sans)}
.minicard div span{background:#0b0b0c;color:#fff;border-radius:7px;padding:7px 10px;font:600 11.5px/1 var(--sans)}
.cmp-row{position:relative;display:flex;align-items:flex-end;gap:2px;padding:0 10px;overflow:hidden;border-bottom:7px solid #fff;min-height:0}
.cmp-row i{display:block;flex:none;border-radius:2px 2px 0 0}
.cmp-handle{position:absolute;top:0;bottom:0;left:var(--pos,50%);width:2px;margin-left:-1px;background:#0b0b0c;pointer-events:none;z-index:2}
.cmp-handle::after{content:"↔";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:44px;height:44px;border-radius:50%;background:#0b0b0c;color:#fff;display:grid;place-items:center;font:500 18px/1 var(--sans);box-shadow:0 0 0 4px rgba(255,255,255,.7)}
.cmp-tag{position:absolute;bottom:14px;z-index:2;font:500 11px/1 var(--mono);text-transform:uppercase;letter-spacing:.04em;padding:7px 9px;border-radius:6px;background:#0b0b0c;color:#fff;pointer-events:none}
.cmp-tag.l{left:12px}.cmp-tag.r{right:12px;background:var(--oak)}
.compare input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize;z-index:3;touch-action:pan-y}
.compare:focus-within .cmp-handle::after{outline:2px solid var(--oak);outline-offset:4px}
.cmp-notes{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,4vw,56px);margin-top:28px}
.cmp-notes h3{font:500 12px/1 var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);margin-bottom:12px}
.cmp-notes ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.cmp-notes li{display:flex;gap:10px;font-size:15.5px}
.cmp-notes .no li{color:var(--ink-soft)}
.cmp-notes .no li::before{content:"–";color:var(--ink-soft)}
.cmp-notes .yes li::before{content:"✓";font-weight:600;color:var(--oak)}
@media (max-width:760px){
  .compare{aspect-ratio:3/4.4}
  .shop nav,.dots,.sortbox{display:none}
  .cmp-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cmp-grid .cmp-card:nth-child(n+10){display:none}
  .minicard{width:auto;left:10px;right:10px;bottom:46px}
  .cmp-notes{grid-template-columns:1fr}
}
@media (max-width:760px){
  .hero{height:max(540px, calc(100svh - 64px))}
  .hero-inner{grid-template-columns:1fr;padding-top:28px;gap:16px}
  .hero .lead{display:none}
  .hero h1{font-size:clamp(34px,10vw,44px)}
  .hero .btn-ghost{background:var(--bg)}
  .hero-veil{background:linear-gradient(to bottom, color-mix(in srgb, var(--bg) 92%, transparent) 0%, color-mix(in srgb, var(--bg) 86%, transparent) 50%, color-mix(in srgb, var(--bg) 30%, transparent) 64%, transparent 74%)}
  .bookcard{left:16px;right:16px;width:auto;bottom:16px}
  .hero-hint{display:none}
  .styler{left:16px;right:16px;bottom:12px;justify-content:center}
}

.stage{position:relative;border-radius:14px;border:1px solid var(--line);overflow:hidden;background:var(--frame);aspect-ratio:16/9;max-height:78vh;width:100%;max-width:100%;}
.stage iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.shield{position:absolute;inset:0;z-index:2;display:flex;align-items:flex-end;justify-content:center;padding:22px;background:linear-gradient(to top, rgba(0,0,0,.22), transparent 36%);border:0;width:100%;cursor:pointer;font:inherit;color:inherit}
.shield span{background:#0b0b0c;color:#fff;border-radius:10px;padding:12px 18px;font:600 15px/1 var(--sans);display:inline-flex;gap:10px;align-items:center;box-shadow:0 10px 30px -12px rgba(0,0,0,.4)}
.stage-tools{position:absolute;z-index:3;top:14px;left:50%;transform:translateX(-50%);display:flex;gap:8px}
.stage-tools a,.stage-tools button{background:#0b0b0c;color:#fff;border:0;border-radius:8px;padding:8px 12px;font:500 13px/1 var(--sans);text-decoration:none;cursor:pointer}
.stage.full{position:fixed;inset:0;z-index:100;border-radius:0;border:0;aspect-ratio:auto;max-height:none;height:100%}
.stage.full .stage-tools{top:calc(env(safe-area-inset-top,0px) + 62px);left:16px;transform:none}
.stage.full .stage-tools a{display:none}
.stage-tools a,.stage-tools button{white-space:nowrap}
body.lock{overflow:hidden}
.stage-note{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;margin-top:14px;font-size:14px;color:var(--ink-soft)}
.stage-note code{font:500 13px/1 var(--mono);background:var(--surface);border:1px solid var(--line);padding:3px 7px;border-radius:6px;color:var(--ink)}
@media (max-width:640px){ .stage{aspect-ratio:3/4;max-height:none} }

/* tira de estantería: la tienda de ejemplo con el bloque puesto */
.strip-shop{position:relative;border-radius:14px;overflow:hidden;background:#fff;color:#0b0b0c;box-shadow:0 0 0 1px var(--line), 0 40px 80px -50px rgba(0,0,0,.35)}
.strip-page{padding:clamp(22px,3vw,36px) 0 clamp(18px,2.4vw,28px)}
.strip-heading{margin:0 0 6px;padding:0 clamp(14px,2.4vw,28px);font:600 clamp(20px,2.2vw,28px)/1.1 var(--sans);letter-spacing:-.035em}
.strip-stage{--sh:240px;position:relative;height:var(--sh);transition:height .35s cubic-bezier(.2,.7,.2,1)}
.strip-stage canvas{position:absolute;inset:0;width:100%;height:100%;display:block;outline:none}
.strip-stage canvas:focus-visible{box-shadow:inset 0 0 0 2px var(--oak)}
.strip-fallback{position:absolute;inset:auto 0 12% 0;height:70%;background:transparent;border-bottom-color:#1c1c1e}
.strip-stage.live .strip-fallback{opacity:0;transition:opacity .4s}
.strip-ghost{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(10px,1.6vw,20px);padding:clamp(14px,2vw,22px) clamp(14px,2.4vw,28px) 0}
.strip-ghost i{height:10px;border-radius:5px;background:#efefed}
.strip-ghost i:nth-child(2){width:70%}
.strip-shop .toast3d{top:auto;bottom:18px}
.strip-hint{margin-top:14px;font-size:14px;color:var(--ink-soft)}
.strip-setup{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(28px,5vw,72px);align-items:start;margin-top:clamp(40px,6vw,64px)}
.strip-clock{display:inline-flex;align-items:center;gap:10px;font:500 13px/1 var(--mono);letter-spacing:.04em;text-transform:uppercase;color:var(--ok);background:color-mix(in srgb, var(--ok) 12%, transparent);padding:8px 12px;border-radius:999px}
.strip-clock span{width:14px;height:14px;border-radius:50%;border:2px solid currentColor;position:relative}
.strip-clock span::after{content:"";position:absolute;left:50%;top:1px;width:2px;height:5px;margin-left:-1px;background:currentColor;border-radius:1px;transform-origin:50% 100%;animation:tick 4s steps(12) infinite}
@keyframes tick{to{transform:rotate(360deg)}}
.strip-install h3{font-size:clamp(22px,2.4vw,28px);line-height:1.15;margin:18px 0 22px;max-width:24ch}
.strip-install ol{list-style:none;margin:0;padding:0;display:grid}
.strip-install li{display:grid;grid-template-columns:3.4em 1fr;gap:14px;padding:16px 0;border-top:1px solid var(--line)}
.strip-install li > span{font:500 13px/1.6 var(--mono);color:var(--ink-soft);font-variant-numeric:tabular-nums}
.strip-install b{font-weight:600;font-size:17px}
.strip-install p{color:var(--ink-soft);font-size:15.5px;margin-top:2px}
.strip-install i{font-style:normal;color:var(--ink)}
.editor{background:var(--bg);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:0 30px 60px -44px rgba(0,0,0,.35)}
.ed-top{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);font-size:14.5px}
.ed-back{color:var(--ink-soft);font-size:20px;line-height:1}
.ed-app{margin-left:auto;font:500 11px/1 var(--mono);text-transform:uppercase;letter-spacing:.04em;color:var(--ink-soft);border:1px solid var(--line);border-radius:6px;padding:5px 7px}
.ed-body{display:grid;gap:16px;padding:16px}
.ed-field{display:grid;gap:7px;font-size:13.5px;font-weight:500}
.ed-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.ed-field output{font:500 12.5px/1.6 var(--mono);color:var(--ink-soft)}
.ed-field input[type=text],.ed-field select{font:400 14.5px/1.3 var(--sans);color:var(--ink);background:var(--bg);border:1px solid color-mix(in srgb, var(--ink) 22%, transparent);border-radius:8px;padding:9px 10px;width:100%}
.ed-field input[type=range]{width:100%;accent-color:var(--ink)}
.ed-seg{display:flex;padding:3px;gap:3px;background:var(--surface);border:1px solid var(--line);border-radius:9px}
.ed-seg button{flex:1;border:0;background:transparent;color:var(--ink-soft);font:500 13.5px/1 var(--sans);padding:9px 6px;border-radius:6px;cursor:pointer;white-space:nowrap}
.ed-seg button[aria-pressed="true"]{background:var(--bg);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.14)}
.ed-foot{padding:12px 16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-soft);background:var(--surface)}
@media (max-width:820px){ .strip-setup{grid-template-columns:1fr} }
@media (max-width:760px){ .strip-stage{height:calc(var(--sh) * .75)} .strip-shop .shop nav,.strip-shop .dots{display:none} }
@media (prefers-reduced-motion: reduce){ .strip-clock span::after{animation:none} }

/* secciones */
section.block{padding-block:clamp(72px,10vw,128px)}
.head{display:grid;gap:14px;max-width:60ch;margin-bottom:clamp(36px,5vw,56px)}
.head h2{font-size:clamp(30px,4vw,48px);line-height:1.05}
.head p{color:var(--ink-soft)}

/* pasos */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px);counter-reset:s;list-style:none;margin:0;padding:0}
.steps li{display:grid;gap:10px;align-content:start;border-top:1px solid var(--line);padding-top:18px}
.steps .n{font:500 13px/1 var(--mono);color:var(--ink-soft)}
.steps h3{font-size:22px;line-height:1.15}
.steps p{color:var(--ink-soft);font-size:16px}
.steps code{font:500 13.5px/1 var(--mono);background:var(--surface);border:1px solid var(--line);padding:2px 6px;border-radius:5px;color:var(--ink)}
@media (max-width:820px){ .steps{grid-template-columns:1fr} }

/* experiencia */
.feat{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(24px,5vw,72px)}
.feat div{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;padding-block:22px;border-bottom:1px solid var(--line)}
.feat b{grid-row:span 2;font:500 12px/2.1 var(--mono);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);min-width:5.5em}
.feat h3{font-size:20px;line-height:1.2}
.feat p{color:var(--ink-soft);font-size:16px}
@media (max-width:760px){ .feat{grid-template-columns:1fr} }

/* formatos */
.formats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
.fmt{display:grid;grid-template-rows:150px auto;grid-template-columns:minmax(0,1fr);background:var(--bg);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.fmt.on{border-color:var(--ink)}
.spines{display:flex;overflow:hidden;align-items:flex-end;justify-content:center;gap:2px;padding:0 14px;border-bottom:3px solid var(--ink);background:var(--surface)}
.spines i{display:block;border-radius:2px 2px 0 0;box-shadow:inset -2px 0 0 rgba(0,0,0,.14), inset 2px 0 0 rgba(255,255,255,.12)}
.spines i.front{border-radius:2px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.1)}
.fmt .info{display:grid;gap:4px;padding:16px}
.fmt .range{font:500 11.5px/1 var(--mono);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.fmt h3{font-size:19px;line-height:1.15}
.fmt p{font-size:14.5px;color:var(--ink-soft);line-height:1.5}
.pill{justify-self:start;margin-top:6px;font:500 11px/1 var(--mono);letter-spacing:.02em;padding:5px 8px;border-radius:6px;border:1px solid var(--line);color:var(--ink-soft)}
.fmt.on .pill{background:var(--oak);color:#fff;border-color:var(--oak)}
@media (max-width:1020px){ .formats{grid-template-columns:repeat(2,minmax(0,1fr))} .fmt.on{grid-column:span 2} }
@media (max-width:520px){ .formats{grid-template-columns:1fr} .fmt.on{grid-column:auto} }

/* panel */
.panel{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(28px,5vw,72px);align-items:start}
.tabs{display:grid;gap:0;border-top:1px solid var(--line)}
.tabs button{all:unset;cursor:pointer;display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:18px 4px;border-bottom:1px solid var(--line);font:500 22px/1.1 var(--sans);letter-spacing:-.03em;color:var(--ink-soft)}
.tabs button small{font:500 12px/1 var(--mono);color:var(--ink-soft)}
.tabs button[aria-selected="true"]{color:var(--ink)}
.tabs button[aria-selected="true"]::after{content:"→";font-family:var(--sans);color:var(--ink)}
.tabs button:focus-visible{outline:2px solid var(--oak)}
.screen{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:clamp(20px,3vw,32px);display:grid;gap:18px;min-height:340px}
.screen h3{font-size:24px}
.screen > p{color:var(--ink-soft)}
.screen ul{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.screen li{display:flex;gap:12px;align-items:baseline;font-size:16px}
.screen li::before{content:"";flex:none;width:7px;height:7px;border-radius:2px;background:var(--ink-soft);transform:translateY(-2px)}
.mock{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:4px}
.mock div{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:12px;display:grid;gap:4px}
.mock b{font:500 22px/1 var(--sans);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.mock span{font-size:12.5px;color:var(--ink-soft)}
@media (max-width:820px){ .panel{grid-template-columns:1fr} }

/* precios */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:stretch}
.plan{position:relative;overflow:hidden;display:grid;grid-template-rows:auto auto 1fr auto;gap:18px;background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:28px}
.plan.feature{border:1.5px solid var(--ink)}
    .plan::before{content:"";position:absolute;inset:0 0 auto 0;height:6px;background:var(--band, var(--oak))}
.plan .name{display:flex;justify-content:space-between;align-items:center;gap:10px}
.plan h3{font-size:20px}
.plan .tag{font:500 11px/1 var(--mono);letter-spacing:.02em;text-transform:uppercase;padding:5px 8px;border-radius:6px;background:var(--oak);color:#fff}
.price{display:flex;align-items:baseline;gap:8px}
.price strong{font:500 48px/1 var(--sans);letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.price span{font-size:15px}
.muted{color:var(--ink-soft);font-size:15px}
.plan ul{margin:0;padding:0;list-style:none;display:grid;gap:10px;align-content:start}
.plan li{display:flex;gap:10px;font-size:15.5px;color:var(--ink-soft)}
.plan li::before{content:"✓";flex:none;font-weight:600;color:var(--ink)}
.plan .btn{justify-content:center}
.plan:not(.feature) .btn{background:transparent;color:var(--ink);border-color:var(--line)}
.plan:not(.feature) .btn:hover{background:var(--surface)}
.fine{margin-top:18px;font-size:14px;color:var(--ink-soft)}
@media (max-width:900px){ .plans{grid-template-columns:1fr} }

/* faq */
.faq{display:grid;align-items:start;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(28px,5vw,72px)}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:20px 2px;font:500 18px/1.3 var(--sans);letter-spacing:-.02em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:400 22px/1 var(--sans);color:var(--ink-soft);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 2px 22px;color:var(--ink-soft);max-width:62ch}
@media (max-width:820px){ .faq{grid-template-columns:1fr} }

/* cierre */
.closing{text-align:left;display:grid;gap:22px;justify-items:start;padding-block:clamp(72px,10vw,120px);border-top:1px solid var(--line)}
.closing h2{font-size:clamp(34px,5vw,64px);line-height:1.02;letter-spacing:-.05em;font-weight:600;max-width:16ch}
.shelf-rule{height:74px;display:flex;align-items:flex-end;gap:2px;overflow:hidden;border-bottom:3px solid var(--ink);width:100%}
footer{padding-block:28px 40px;font-size:14px;color:var(--ink-soft)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 20px}
.foot-links a{text-decoration:none}
.foot-links a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}

@media (prefers-reduced-motion: reduce){ html{scroll-behavior:auto} *{transition:none!important} }

/* Japonés y chino: Geist no tiene esos glifos; fuentes del sistema y sin el tracking negativo */
:lang(ja),:lang(zh){
  --serif:"Geist", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Noto Sans JP", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --sans:var(--serif);
}
:lang(ja) h1,:lang(ja) h2,:lang(ja) h3,:lang(zh) h1,:lang(zh) h2,:lang(zh) h3{letter-spacing:0;line-break:strict;word-break:auto-phrase}
:lang(ja) .hero h1,:lang(zh) .hero h1{letter-spacing:-.02em;line-height:1.1}

/* selector de idioma */
.top-actions{display:flex;align-items:center;gap:10px}
.lang{position:relative}
.lang summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 10px;border:1px solid var(--line);border-radius:10px;font:500 13px/1 var(--mono);text-transform:uppercase;color:var(--ink-soft)}
.lang summary::-webkit-details-marker{display:none}
.lang summary:hover,.lang[open] summary{color:var(--ink);background:var(--surface)}
.lang summary svg{width:15px;height:15px}
.lang ul{position:absolute;right:0;top:calc(100% + 8px);z-index:30;margin:0;padding:6px;list-style:none;min-width:210px;max-height:min(70vh,520px);overflow:auto;background:var(--bg);border:1px solid var(--line);border-radius:12px;box-shadow:0 24px 50px -24px rgba(0,0,0,.35)}
.lang li a{display:flex;justify-content:space-between;gap:16px;padding:8px 10px;border-radius:8px;text-decoration:none;font-size:14.5px}
.lang li a:hover{background:var(--surface)}
.lang li a small{font:500 11px/1.9 var(--mono);text-transform:uppercase;color:var(--ink-soft)}
.lang li a[aria-current="true"]{font-weight:600}
.lang-bar{position:fixed;left:50%;bottom:16px;z-index:40;transform:translateX(-50%);display:flex;align-items:center;gap:6px;max-width:calc(100% - 32px);padding:6px 6px 6px 14px;background:var(--ink);color:var(--bg);border-radius:12px;box-shadow:0 20px 40px -18px rgba(0,0,0,.5);font-size:14.5px}
.lang-bar a{color:inherit;font-weight:600;text-decoration:none;white-space:nowrap}
.lang-bar button{border:0;background:transparent;color:inherit;opacity:.7;font-size:18px;width:32px;height:32px;border-radius:8px;cursor:pointer}
.lang-bar button:hover{opacity:1;background:rgba(255,255,255,.12)}
.foot-langs{display:flex;flex-wrap:wrap;gap:6px 14px;width:100%;padding-top:14px;margin-top:4px;border-top:1px solid var(--line);font-size:13px}
.foot-langs a{text-decoration:none}
.foot-langs a:hover,.foot-langs a[aria-current="true"]{color:var(--ink)}
@media (max-width:520px){ .top .btn-primary{padding:10px 12px;font-size:13px} .lang summary{padding:0 8px} }