:root{--ink:#111;--cream:#f4f1ec;--soft:#faf8f5;--slate:#5b6b7a;--coral:#ff4d6a;--blue:#3b82f6;--mut:#6b6560}
*{box-sizing:border-box}body{margin:0;font-family:Outfit,system-ui,sans-serif;background:var(--soft);color:var(--ink)}
header{display:flex;justify-content:space-between;align-items:center;padding:18px 5vw;border-bottom:1px solid #e6e1da;background:#fff}
.brand{font-family:Fraunces,serif;font-weight:600;font-size:20px}.brand small{font-family:Outfit;color:var(--mut);font-weight:400;margin-left:10px;font-size:14px}
.lang button{border:1px solid #d8d2ca;background:#fff;padding:6px 12px;border-radius:99px;font:500 13px Outfit;cursor:pointer}.lang button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:5vw;padding:72px 5vw 56px;max-width:1280px;margin:auto;align-items:center}
.eyebrow{letter-spacing:.16em;text-transform:uppercase;font-size:12px;color:var(--slate);font-weight:600}
h1{font-family:Fraunces,serif;font-weight:600;font-size:clamp(40px,5.4vw,72px);line-height:1.02;margin:14px 0 18px}h1 em{color:var(--coral);font-style:normal}
.lead{font-size:19px;line-height:1.55;color:#3a3633;max-width:34em}
.cta{display:inline-flex;gap:10px;margin-top:26px}.btn{background:var(--ink);color:#fff;border:0;padding:14px 22px;border-radius:12px;font:600 15px Outfit;cursor:pointer;text-decoration:none}.btn.ghost{background:transparent;color:var(--ink);border:1px solid #cfc8bf}
.stack{position:relative;height:440px}.stack img{position:absolute;width:62%;border-radius:14px;box-shadow:0 30px 60px -25px rgba(0,0,0,.35)}
.stack img:nth-child(1){left:0;top:40px;transform:rotate(-5deg)}.stack img:nth-child(2){left:22%;top:0;z-index:2}.stack img:nth-child(3){right:0;top:60px;transform:rotate(5deg)}
.meta{display:flex;gap:28px;margin-top:30px;color:var(--mut);font-size:14px}.meta b{display:block;color:var(--ink);font:600 22px Fraunces}
#viewer{background:#fff;border-top:1px solid #e6e1da;padding:56px 5vw 80px}
.vwrap{max-width:1180px;margin:auto;display:grid;grid-template-columns:260px 1fr;gap:48px}
.toc{list-style:none;padding:0;margin:0}.toc li{padding:12px 14px;border-radius:10px;font-size:15px;display:flex;gap:10px;align-items:center;cursor:pointer;color:#3a3633}
.toc li.on{background:var(--cream);font-weight:600}.toc .n{font:600 12px Outfit;color:var(--slate);width:22px}.toc .lk{margin-left:auto;font-size:12px;color:#a49b91}
.prog{height:3px;background:#eee;border-radius:3px;margin:18px 0 6px}.prog i{display:block;height:100%;background:var(--coral);border-radius:3px}
.slide{position:relative;background:var(--cream);border-radius:20px;padding:34px;display:flex;justify-content:center}
.slide img{max-height:74vh;max-width:100%;border-radius:10px;box-shadow:0 20px 50px -20px rgba(0,0,0,.3)}
.nav{display:flex;justify-content:space-between;align-items:center;margin-top:18px}.nav .t{font:600 22px Fraunces}
.arrow{width:46px;height:46px;border-radius:50%;border:1px solid #cfc8bf;background:#fff;font-size:18px;cursor:pointer}
.gate{position:absolute;inset:0;border-radius:20px;background:rgba(244,241,236,.72);backdrop-filter:blur(14px);display:none;align-items:center;justify-content:center}
.gate.show{display:flex}.gcard{background:#fff;width:min(480px,92%);border-radius:18px;padding:30px;box-shadow:0 30px 70px -25px rgba(0,0,0,.35)}
.gcard h3{font:600 26px Fraunces;margin:6px 0 8px}.gcard p{color:var(--mut);margin:0 0 18px;line-height:1.5}
.soc{display:grid;grid-template-columns:1fr 1fr;gap:10px}.soc a{display:flex;gap:8px;justify-content:center;align-items:center;padding:13px;border-radius:12px;border:1px solid #ddd;color:var(--ink);text-decoration:none;font-weight:600}
.or{text-align:center;color:#a49b91;font-size:13px;margin:16px 0;position:relative}.gcard input[type=text],.gcard input[type=email]{width:100%;padding:12px 14px;border:1px solid #ddd;border-radius:10px;font:15px Outfit;margin-bottom:8px}
.chk{display:flex;gap:8px;font-size:12.5px;color:var(--mut);line-height:1.4;margin:6px 0 14px}.gcard .btn{width:100%}
.fab{position:fixed;right:24px;bottom:24px;display:flex;align-items:center;gap:10px;background:var(--ink);color:#fff;border-radius:99px;padding:8px 18px 8px 8px;font-weight:600;cursor:pointer;box-shadow:0 14px 30px -10px rgba(0,0,0,.5);z-index:9}.fab img{width:40px;border-radius:12px}
.chat{position:fixed;right:24px;bottom:92px;width:370px;background:#fff;border-radius:18px;box-shadow:0 30px 80px -20px rgba(0,0,0,.4);display:none;overflow:hidden;z-index:9}.chat.show{display:block}
.ch{display:flex;gap:12px;align-items:center;padding:16px;background:var(--ink);color:#fff}.ch img{width:42px;border-radius:12px}.ch small{display:block;color:#aaa;font-weight:400}
.msgs{padding:16px;display:flex;flex-direction:column;gap:10px;height:300px;overflow:auto;background:var(--soft)}.m{max-width:85%;padding:10px 13px;border-radius:14px;font-size:14px;line-height:1.45}.m.b{background:#fff;border:1px solid #eee}.m.u{align-self:flex-end;background:var(--blue);color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:6px}.chips span{font-size:12.5px;border:1px solid #d8d2ca;border-radius:99px;padding:5px 10px;background:#fff}
.ci{display:flex;border-top:1px solid #eee}.ci input{flex:1;border:0;padding:14px;font:14px Outfit}.ci button{border:0;background:none;color:var(--blue);font-weight:600;padding:0 16px}
.disc{font-size:11px;color:#a49b91;padding:0 14px 10px}
footer{padding:30px 5vw;color:var(--mut);font-size:13px;text-align:center}
@media(max-width:820px){.hero{grid-template-columns:1fr;padding:40px 6vw}.stack{height:300px}.vwrap{grid-template-columns:1fr}.toc{display:flex;overflow:auto;gap:6px}.toc li{white-space:nowrap;border:1px solid #e6e1da}.toc li .lk{display:none}.slide{padding:14px}.chat{right:10px;left:10px;width:auto}.brand small{display:none}.fab span{display:none}.fab{padding:8px}}

.soon{opacity:.55}.ph{width:min(560px,100%);aspect-ratio:4/5;border-radius:12px;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;gap:10px}
.ph b{font:600 26px Fraunces,serif}.ph span{color:var(--mut)}.hp{position:absolute;left:-9999px}.err{color:#c6003d;font-size:13px;min-height:18px;margin:4px 0}.gcard a{color:var(--ink)}
.msgs .chips span{cursor:pointer}.slide picture img{display:block}
.hdr-r{display:flex;align-items:center;gap:18px}.back{font-size:14px;color:var(--mut);text-decoration:none;white-space:nowrap}.back:hover{color:inherit;text-decoration:underline}@media(max-width:520px){.back{font-size:12px}.hdr-r{gap:10px}}
.vwrap>div{min-width:0}.toc{max-width:100%}
/* lesson explainers (PR captions) */
.cap{max-width:70ch;margin:40px auto 0;font:18px/1.7 Outfit,system-ui,sans-serif;color:#1d1b19;overflow-wrap:anywhere}
.cap h2.cap-title{font-family:Fraunces,serif;font-size:clamp(26px,3.2vw,36px);line-height:1.2;margin:0 0 10px}
.cap h3{font-family:Fraunces,serif;font-size:24px;line-height:1.3;margin:44px 0 12px}
.cap h4{font-size:19px;margin:28px 0 8px}
.cap p{margin:0 0 18px}.cap em{color:#6b6560}
.cap ul,.cap ol{margin:0 0 20px;padding-left:1.4em}.cap li{margin:0 0 10px}.cap li::marker{color:#c6003d}
.cap a{color:#c6003d;text-decoration:underline;text-underline-offset:3px}
.cap hr{border:0;border-top:1px solid #e6e1da;margin:36px 0}
.cap code{font-size:.9em;background:#f4f1ec;padding:1px 5px;border-radius:5px}
.cap ul.tools{list-style:none;padding:0;display:grid;gap:12px}
.cap ul.tools>li{background:#fff;border:1px solid #e6e1da;border-radius:14px;padding:14px 18px;margin:0;line-height:1.6;box-shadow:0 8px 24px -18px rgba(0,0,0,.35)}
.cap ul.tools>li>strong:first-child{display:block;font-size:19px;color:#111}
.cap ul.tools ul{margin:8px 0 0}
.cap-src{margin:32px 0 0;border-top:1px solid #e6e1da;padding-top:14px;font-size:15px;line-height:1.6;color:#4a4540}
.cap-src summary{cursor:pointer;font-weight:600;color:#111}.cap-src ul{padding-left:1.2em}.cap-src li{margin:0 0 8px}
@media(max-width:820px){.cap{margin-top:28px;padding:0 2px}.cap h3{margin-top:34px}}
/* tool logos */
.cap li.has-lg,.cap h4.has-lg{position:relative}
.cap .lg{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:#f4f1ec;border:1px solid #ebe5dc;vertical-align:middle;margin:0 10px 0 0;flex:none}
.cap .lg img{width:24px;height:24px;border-radius:5px;display:block}
.cap .lg.mono{font:600 13px/1 Outfit,system-ui,sans-serif;color:#4a5966;letter-spacing:.02em}
.cap ul.tools>li.has-lg>.lg{float:left;margin-top:-2px}
.cap ul.tools>li.has-lg>strong:first-of-type{display:block;font-size:19px;color:#111;line-height:32px;min-height:34px}
.cap ul ul li.has-lg>.lg{width:28px;height:28px;border-radius:8px;margin-right:8px}.cap ul ul li.has-lg>.lg img{width:20px;height:20px}
.cap h4.has-lg{display:flex;align-items:center}
footer .lgn{display:block;margin-top:6px;font-size:12px;color:var(--mut)}