/* 20 Guide + 21 Solution. Loads after landing.css and compare.css */
html:not(.mo) .rv{opacity:1;transform:none}
/* glow, selection frame */
.glow{box-shadow:0 0 0 1px rgba(228,242,34,.55),0 0 28px 2px rgba(228,242,34,.2),0 0 110px 12px rgba(228,242,34,.09)!important}
.sf{position:absolute;inset:-5px;border:1.5px solid var(--primary);border-radius:12px;pointer-events:none;z-index:4;transition:opacity .3s var(--lp-ease)}
.sf b{position:absolute;width:7px;height:7px;background:var(--surface);border:1.5px solid var(--primary);border-radius:1px}
.sf b:nth-child(1){left:-4.5px;top:-4.5px}.sf b:nth-child(2){right:-4.5px;top:-4.5px}.sf b:nth-child(3){left:-4.5px;bottom:-4.5px}.sf b:nth-child(4){right:-4.5px;bottom:-4.5px}
.sf::before{content:attr(data-l);position:absolute;left:-1.5px;bottom:calc(100% + 6px);font:500 11px/18px var(--font-mono);padding:0 6px;border-radius:4px;background:var(--primary);color:var(--on-primary);white-space:nowrap}
.sf.in-l::before{bottom:auto;top:6px;left:6px}
/* interface shell */
.ui{position:relative;container-type:inline-size;background:var(--surface-sunken);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 40px 100px -40px rgba(0,0,0,.7);font-size:13px;line-height:18px;color:var(--text-primary);text-align:left}
.ui img{display:block}
.ui [data-icon]{display:inline-flex}
.fade-b{border-bottom-color:transparent;-webkit-mask-image:linear-gradient(180deg,#000 62%,transparent);mask-image:linear-gradient(180deg,#000 62%,transparent)}
.fade-x{border-color:transparent;-webkit-mask-image:linear-gradient(180deg,#000 55%,transparent 97%),linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);-webkit-mask-composite:source-in;mask-image:linear-gradient(180deg,#000 55%,transparent 97%),linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);mask-composite:intersect}
.ui-top{display:flex;align-items:center;gap:8px;height:48px;padding:0 14px;border-bottom:1px solid var(--border);min-width:0}
.ui-top .t{font-weight:500;font-size:14px;margin-right:auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.ui-ic{color:var(--text-secondary)}
.ui-pill{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 10px;border-radius:8px;border:1px solid var(--border);color:var(--text-secondary);white-space:nowrap;font-size:12px}
.ui-go{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;border-radius:8px;background:var(--primary);color:var(--on-primary);font-weight:560;font-size:13px;white-space:nowrap}.ui-go em{font:500 12px var(--font-mono);font-style:normal}
.ui-top .lf-badge{flex:none}
@container (max-width:700px){.ui-top .ui-pill{display:none}}
@container (max-width:460px){.ui-top .lf-badge{display:none}.ui-go em{display:none}}
.ui-k{font:500 11px/14px var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--text-secondary)}
/* timeline */
.tl{position:relative;padding:12px 14px 14px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:7px;--lab:92px}
.tl-r{display:grid;grid-template-columns:var(--lab) minmax(0,1fr);gap:10px;align-items:center}
.tl-r>span{display:flex;align-items:center;gap:6px;color:var(--text-secondary);font-size:12px}
.tl-tr{display:flex;gap:3px;height:24px;min-width:0}
.tl-tr.chp i{font-style:normal;border:1px solid rgba(240,168,71,.55);border-radius:5px;padding:0 8px;font-size:11px;line-height:22px;color:var(--lp-amber);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.tl-tr.chp i.on{background:rgba(240,168,71,.12)}
.tl-tr.sc{height:34px}
.tl-sc{flex:1 1 0;min-width:0;border-radius:4px;overflow:hidden;background:#1a1b1e;position:relative}.tl-sc img{width:100%;height:100%;object-fit:cover}
.tl-sc.cur{outline:1.5px solid var(--primary);outline-offset:1px}
.tl-tr.vo{align-items:center;gap:2px;height:22px}.tl-tr.vo i{flex:1 1 0;min-width:1px;background:var(--text-secondary);opacity:.45;border-radius:1px;height:var(--h)}
.tl-ph{position:absolute;top:6px;bottom:8px;left:calc(14px + var(--lab) + 10px + (100% - 38px - var(--lab)) * .25);width:2px;background:var(--primary);border-radius:1px}
.tl-ph::before{content:"";position:absolute;top:0;left:-4px;width:10px;height:8px;background:var(--primary);clip-path:polygon(0 0,100% 0,100% 55%,50% 100%,0 55%)}
@container (max-width:520px){.tl{--lab:0px}.tl-r{grid-template-columns:minmax(0,1fr)}.tl-r>span{display:none}.tl-ph{left:calc(14px + (100% - 28px) * .25)}}
/* storyboard body */
.ui-bd{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:18px;padding:18px 16px 20px}
@container (max-width:640px){.ui-bd{grid-template-columns:minmax(0,1fr)}}
.scns{display:flex;flex-direction:column;gap:12px}
.scn{position:relative;display:grid;grid-template-columns:40px minmax(0,1fr) 140px;gap:12px;align-items:start;padding:10px;border:1px solid var(--border);border-radius:10px;background:var(--surface-raised)}
.scn .stc{font:500 12px/18px var(--font-mono);color:var(--text-secondary)}
.scn p{margin:0;font-size:13px;line-height:19px}
.scn small{display:flex;align-items:center;gap:6px;flex-wrap:wrap;color:var(--text-secondary);font-size:11px;line-height:16px;margin-top:8px}
.scn .lf-badge{font-size:11px}
.uth{position:relative;aspect-ratio:16/9;border-radius:6px;overflow:hidden;background:#1a1b1e}.uth img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:opacity .5s var(--lp-ease)}
.uth img.b,.swap .uth img.a{opacity:0}.swap .uth img.b{opacity:1}
.src-a,.swap .src-b{display:inline}.src-b,.swap .src-a{display:none}
.swp{opacity:0;transition:opacity .3s}.swap .swp{opacity:1}
@container (max-width:460px){.scn{grid-template-columns:minmax(0,1fr) 104px}.scn .stc{display:none}}
.ui-alts{display:flex;flex-direction:column;gap:10px}
.ui-alts-h{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12px;color:var(--text-secondary)}.ui-alts-h b{font-weight:500;color:var(--text-primary);font-size:13px}
.alts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 10px}
@container (max-width:640px){.alts{grid-template-columns:repeat(4,minmax(0,1fr))}}
@container (max-width:420px){.alts{grid-template-columns:repeat(2,minmax(0,1fr))}}
.alt{position:relative;display:flex;flex-direction:column;gap:5px}
.alt .uth{border-radius:7px}
.alt .sf{inset:-4px -4px auto -4px;aspect-ratio:auto;height:calc(100% - 17px)}
.alt small{font-size:11px;line-height:14px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.alt .srcb{position:absolute;left:5px;top:5px;z-index:2;display:inline-flex;align-items:center;gap:4px;font:500 10px/16px var(--font-mono);padding:0 5px;border-radius:4px;background:var(--overlay-scrim-strong,rgba(8,9,10,.8));color:#fff}
.alt.b .sf,.swap .alt.a .sf{opacity:0}.swap .alt.b .sf{opacity:1}
/* assembly motion */
.mo .asm .tl-sc{opacity:0;transform:translateX(64px);transition:opacity .6s var(--lp-ease),transform .6s var(--lp-ease);transition-delay:calc(var(--i) * 45ms)}
.mo .asm .scn,.mo .asm .al{opacity:0;transform:translateY(14px);transition:opacity .6s var(--lp-ease),transform .6s var(--lp-ease);transition-delay:calc(.3s + var(--i) * 90ms)}
.mo .asm .sl{opacity:0;transform:translateY(10px);transition:opacity .6s var(--lp-ease),transform .6s var(--lp-ease);transition-delay:calc(var(--i) * 260ms)}
.mo .asm.in .tl-sc,.mo .asm.in .scn,.mo .asm.in .al,.mo .asm.in .sl{opacity:1;transform:none}
/* composer */
.ui-comp{padding:26px 26px 30px;background:radial-gradient(80% 60% at 50% 0,rgba(228,242,34,.04),transparent),var(--surface-sunken)}
.ui-greet{margin:0 0 16px;font-size:20px;font-weight:560;letter-spacing:-.02em}
.ui-comp .lf-composer-input{min-height:78px;font-size:16px;line-height:25px;color:var(--text-primary);white-space:pre-wrap}
.caret{display:inline-block;width:2px;height:18px;background:var(--primary);vertical-align:-3px;margin-left:1px;animation:blink 1s steps(1) infinite}
@container (max-width:560px){.ui-comp .lf-cost{white-space:normal}.ui-comp .lf-composer-go{flex-direction:column;align-items:stretch;gap:10px}.ui-comp .lf-chip:nth-child(n+4){display:none}.ui-comp .lf-composer-input{font-size:14px;line-height:21px}}
/* script */
.scr-b{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px}
.scr-b .ui-k{margin-bottom:2px}
.sl{margin:0;font-size:15px;line-height:24px;text-wrap:pretty}
.sl sup{font:500 10px var(--font-mono);color:var(--lp-cyan);margin-left:2px}
.srcl{display:flex;flex-direction:column;gap:6px;margin-top:6px;padding-top:12px;border-top:1px solid var(--border);font-size:12px;color:var(--text-secondary)}.srcl b{font:500 11px var(--font-mono);color:var(--lp-cyan);margin-right:6px}
/* render + pack */
.rn{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:10px}
.rn-bar{height:4px;border-radius:2px;background:var(--border);overflow:hidden}.rn-bar i{display:block;height:100%;width:100%;background:var(--primary);border-radius:2px}
.mo .asm .rn-bar i{width:0;transition:width 1.8s var(--lp-ease) .2s}.mo .asm.in .rn-bar i{width:100%}
.rn-st{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12px;color:var(--text-secondary)}.rn-st span{display:inline-flex;align-items:center;gap:6px}.rn-st [data-icon]{color:var(--success)}
.mo .asm .rn-st span{opacity:.3;transition:opacity .3s;transition-delay:calc(.5s + var(--i) * 380ms)}.mo .asm.in .rn-st span{opacity:1}
.pk{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:18px;padding:16px 16px 20px}
@container (max-width:600px){.pk{grid-template-columns:minmax(0,1fr)}.pk-r{order:-1}}
.pk-l{display:flex;flex-direction:column;gap:12px;min-width:0}
.pk-f{display:flex;flex-direction:column;gap:6px}
.pk-v{padding:9px 11px;border-radius:8px;border:1px solid var(--border);background:var(--surface-raised);font-size:13px;line-height:19px}
.pk-ch{display:flex;flex-direction:column;gap:3px}.pk-ch div{display:flex;gap:10px}.pk-ch em{font:500 12px/19px var(--font-mono);font-style:normal;color:var(--primary-text);width:34px;flex:none}
.pk-cr{font-size:12px;line-height:18px;color:var(--text-secondary)}
.pk-r{display:flex;flex-direction:column;gap:10px}
.pk-th{position:relative;aspect-ratio:16/9;border-radius:8px;overflow:hidden}.pk-th img{width:100%;height:100%;object-fit:cover}
.pk-th .lf-duration{position:absolute;right:6px;bottom:6px}
.pk-files{display:flex;flex-wrap:wrap;gap:6px}.pk-files span{font:500 11px/22px var(--font-mono);padding:0 8px;border-radius:6px;border:1px solid var(--border);color:var(--text-secondary)}
.ui-dl{display:flex;align-items:center;justify-content:center;gap:8px;height:34px;border-radius:8px;border:1px solid var(--border-strong);background:var(--surface-raised);font-weight:500;font-size:13px}
/* thumbnails + upload */
.tb{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:30px 18px 16px}
.tbi{position:relative;display:flex;flex-direction:column;gap:6px}
.tbi .uth{border-radius:8px}
.tbi .uth::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,9,10,.82),rgba(8,9,10,.1) 70%)}
.tbi .tt{position:absolute;left:10px;top:50%;transform:translateY(-50%);z-index:2;max-width:62%;font-size:clamp(12px,3cqi,20px);line-height:1.05;font-weight:800;letter-spacing:-.02em;text-transform:uppercase;color:#fff}
.tbi .tt em{font-style:normal;color:#ff5a4e}
.tbi small{font-size:11px;color:var(--text-secondary)}
.tbi .sf{inset:-5px -5px auto -5px;height:calc(100% - 12px)}
.upl{margin:0 18px 18px;border-top:1px solid var(--border);padding-top:12px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 20px}
.upl div{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-secondary);min-width:0}.upl div b{font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upl [data-icon]{color:var(--success)}
@container (max-width:520px){.tb{grid-template-columns:repeat(2,minmax(0,1fr))}.tb .tbi:nth-child(3){display:none}.upl{grid-template-columns:minmax(0,1fr)}}
/* calendar */
.cal{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;padding:16px}
.cal-h{font:500 11px/16px var(--font-mono);color:var(--text-secondary);padding:0 2px 4px}
.cal-d{position:relative;min-height:92px;border-radius:8px;border:1px solid var(--border);background:var(--surface-raised);padding:6px;display:flex;flex-direction:column;gap:5px}
.cal-d>em{font:500 11px var(--font-mono);font-style:normal;color:var(--text-disabled)}
.cal-d.off{background:transparent}
.cal-v{display:flex;flex-direction:column;gap:4px}.cal-v .uth{border-radius:4px}
.cal-v b{font-size:11px;line-height:14px;font-weight:500;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cal-v span{display:inline-flex;align-items:center;gap:4px;font:500 10px/14px var(--font-mono);color:var(--text-secondary)}.cal-v span [data-icon]{color:var(--success)}
@container (max-width:560px){.cal{gap:4px;padding:10px}.cal-d{min-height:64px;padding:4px}.cal-v b{display:none}}
/* small lists */
.chk{display:flex;flex-direction:column}
.chk-r{display:grid;grid-template-columns:18px minmax(0,1fr) auto;gap:10px;align-items:center;padding:11px 16px;border-top:1px solid var(--border);font-size:13px}
.chk-r:first-child{border-top:0}.chk-r [data-icon]{color:var(--success)}.chk-r em{font:500 12px var(--font-mono);font-style:normal;color:var(--text-secondary)}
.otb{width:100%;border-collapse:collapse;font-size:13px}
.otb th,.otb td{padding:10px 16px;text-align:left;border-top:1px solid var(--border)}
.otb thead th{border-top:0;font:500 11px var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--text-secondary);font-weight:500}
.otb td.n{font-family:var(--font-mono);color:var(--text-secondary)}
.ttl{display:flex;flex-direction:column;gap:12px;padding:26px 16px 16px}
.ttl-r{position:relative;display:grid;grid-template-columns:22px minmax(0,1fr) auto;gap:10px;align-items:center;padding:10px 12px;border-radius:9px;border:1px solid var(--border);background:var(--surface-raised);font-size:14px}
.ttl-r i{font:500 12px var(--font-mono);font-style:normal;color:var(--text-secondary)}.ttl-r em{font:500 12px var(--font-mono);font-style:normal;color:var(--text-secondary)}
/* floating photo cards */
.pcard{position:absolute;margin:0;padding:6px 6px 8px;border-radius:10px;background:#15161a;border:1px solid rgba(255,255,255,.08);box-shadow:0 30px 60px -20px rgba(0,0,0,.8),0 8px 20px rgba(0,0,0,.35);transform:translateY(var(--py,0px)) rotate(var(--r,0deg));z-index:3}
.pcard .pc-im{position:relative;aspect-ratio:4/3;border-radius:6px;overflow:hidden;background:#1d1f23}
.pcard .pc-im img{width:100%;height:100%;object-fit:cover;display:block;filter:grayscale(1) contrast(1.08)}
.pcard figcaption{display:flex;flex-direction:column;gap:1px;padding:7px 3px 0;font:500 10px/14px var(--font-mono);color:var(--text-secondary)}
.pcard figcaption span{color:var(--text-primary);font-family:var(--font-sans);font-size:11px;font-weight:500}
.pcard.flat{position:relative;transform:none}
/* video slot */
.vstage{position:relative;max-width:1040px;margin:56px auto 0}
.vslot{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:var(--surface-sunken);border:1px solid var(--border)}
.vl-in{position:absolute;left:0;top:0;width:1040px;height:585px;transform-origin:0 0;transform:scale(var(--s,1))}
.vl-p{position:absolute;inset:0;opacity:0;transition:opacity .6s var(--lp-ease)}.vl-p.on{opacity:1}
.vl-p>.ui{position:absolute;inset:0;border:0;border-radius:0;box-shadow:none}
.vl-dots{position:absolute;left:0;right:0;bottom:0;z-index:5;display:flex;justify-content:center;gap:22px;padding:14px;background:linear-gradient(180deg,transparent,rgba(8,9,10,.9));font:500 12px var(--font-mono);color:var(--text-secondary)}
.vl-dots span{display:inline-flex;align-items:center;gap:8px;transition:color .3s}.vl-dots span::before{content:"";width:6px;height:6px;border-radius:1px;background:var(--border-strong);transition:background .3s}
.vl-dots span.on{color:var(--text-primary)}.vl-dots span.on::before{background:var(--primary)}
/* walkthrough state */
.wt image-slot{position:absolute;inset:0}
.wt-top{position:absolute;left:14px;top:14px;z-index:3;display:flex;gap:8px;pointer-events:none}
.wt-pip{position:absolute;right:16px;bottom:64px;z-index:3;width:30%;border-radius:10px;overflow:hidden;border:1px solid rgba(255,255,255,.12);background:var(--surface-sunken);box-shadow:0 20px 50px rgba(0,0,0,.6);pointer-events:none}
.wt-pip .uth{border-radius:0}.wt-pip div{padding:7px 10px;font:500 11px/16px var(--font-mono);color:var(--text-secondary)}.wt-pip b{display:block;font:500 12px/16px var(--font-sans);color:var(--text-primary)}
.wt-bar{position:absolute;left:0;right:0;bottom:0;z-index:3;display:flex;align-items:center;gap:14px;padding:14px 16px;background:var(--overlay-scrim-strong,rgba(8,9,10,.8));font:500 12px var(--font-mono);color:#fff;pointer-events:none}
.wt-tr{position:relative;flex:1;height:4px;border-radius:2px;background:rgba(255,255,255,.18)}.wt-tr>i{position:absolute;left:0;top:0;bottom:0;width:37%;background:var(--primary);border-radius:2px}
.wt-tr b{position:absolute;top:-3px;width:2px;height:10px;background:rgba(255,255,255,.7);border-radius:1px}
.wt-ch{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:16px}
.wt-ch a{display:grid;grid-template-columns:48px minmax(0,1fr);gap:10px;align-items:center;padding:10px 12px;border-radius:10px;border:1px solid var(--border);color:var(--text-secondary);font-size:14px;transition:border-color .2s,color .2s}
.wt-ch a em{font:500 13px var(--font-mono);font-style:normal;color:var(--primary-text)}
.wt-ch a:hover{border-color:var(--border-strong);color:var(--text-primary)}
.wt-ch a.on{border-color:rgba(228,242,34,.4);color:var(--text-primary);background:var(--primary-subtle)}
/* article */
.ar{display:grid;grid-template-columns:210px minmax(0,1fr);gap:72px;align-items:start;padding-top:40px}
.toc{position:sticky;top:96px;display:flex;flex-direction:column;gap:2px;padding-left:14px;border-left:1px solid var(--border)}
.toc .ui-k{margin:0 0 10px -14px;padding-left:14px}
.toc a{position:relative;font-size:14px;line-height:20px;color:var(--text-secondary);padding:5px 0;transition:color .2s}
.toc a:hover{color:var(--text-primary)}
.toc a.on{color:var(--text-primary)}.toc a.on::before{content:"";position:absolute;left:-15.5px;top:5px;bottom:5px;width:2px;border-radius:1px;background:var(--primary)}
.toc a.sub{padding-left:12px;font-size:13px}
.toc-m{display:none}
.as{padding:0 0 88px;scroll-margin-top:96px}
.as h2{margin:12px 0 0;font-size:34px;line-height:1.14;font-weight:560;letter-spacing:-.025em;text-wrap:balance}
.as>p,.as .p{margin:16px 0 0;font-size:17px;line-height:28px;color:var(--text-secondary);max-width:700px;text-wrap:pretty}
.as>p b,.as .p b{color:var(--text-primary);font-weight:500}
.as .vis{margin-top:32px}
.st-h{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.st-n{font:500 13px/18px var(--font-mono);color:var(--primary-text)}
.st-w{display:none;align-items:center;gap:6px;font:500 12px/24px var(--font-mono);padding:0 9px;border-radius:999px;border:1px solid var(--border);color:var(--text-secondary)}
.wtmode .st-w{display:inline-flex}
.sa2{padding:26px 30px}.sa2 p{margin:0;font-size:17px;line-height:28px;color:var(--text-primary);text-wrap:pretty}.sa2 p+p{margin-top:8px;color:var(--text-secondary)}
.kit{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:28px}
.kc{padding:22px;display:grid;grid-template-columns:36px minmax(0,1fr);gap:14px}
.kc>span{width:36px;height:36px;border-radius:9px;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-primary)}
.kc.key>span{color:var(--primary-text);border-color:rgba(228,242,34,.35)}
.kc b{font-size:16px;font-weight:560;letter-spacing:-.01em}.kc p{margin:4px 0 10px;font-size:14px;line-height:21px;color:var(--text-secondary)}
.kc em{font:500 13px var(--font-mono);font-style:normal}
/* prompt block */
.prm{margin-top:28px;border:1px solid var(--border);border-radius:14px;background:var(--surface-sunken);overflow:hidden}
.prm-h{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px 10px 16px;border-bottom:1px solid var(--border)}
.prm pre{margin:0;padding:18px 18px 20px;font:400 14px/23px var(--font-mono);color:var(--text-primary);white-space:pre-wrap;overflow-wrap:anywhere}
.prm pre mark{background:var(--primary-subtle);color:var(--primary-text);border-radius:3px;padding:0 3px}
.prm+.vis{margin-top:16px}
/* economics */
.eco{margin-top:28px}
.eco .ct td,.eco .ct th{padding:14px 16px}
.eco .ct tfoot td,.eco .ct tfoot th{border-top:1px solid var(--border-strong);color:var(--text-primary);font-weight:560}
.calc2{margin-top:16px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);overflow:hidden}
.calc2 .calc-in{border-right:1px solid var(--border)}
.calc2 .cres{grid-template-columns:repeat(2,minmax(0,1fr));border-top:0;padding-top:0;gap:22px 12px}
.calc2 .calc-out{justify-content:center}.calc2 .cr b{font-size:clamp(24px,2.4vw,34px)}.calc2 .cr.w{grid-column:1/-1}
/* monetization */
.req{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:28px}
.rq{padding:22px 24px}.rq b{display:block;font:500 40px/1 var(--font-mono);letter-spacing:-.04em}.rq span{display:block;margin-top:10px;font-size:14px;color:var(--text-secondary)}
.wx{margin-top:14px;padding:24px}
.wx-eq{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px}
.wx-eq>span{display:inline-flex;flex-direction:column;gap:4px;padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:var(--surface-raised);font-size:12px;color:var(--text-secondary)}
.wx-eq>span b{font:500 18px var(--font-mono);color:var(--text-primary)}
.wx-eq>span.r{border-color:rgba(228,242,34,.4);background:var(--primary-subtle)}.wx-eq>span.r b{color:var(--primary-text)}
.wx-eq>i{font:500 16px var(--font-mono);font-style:normal;color:var(--text-secondary)}
.wx p{margin:16px 0 0;font-size:15px;line-height:24px;color:var(--text-secondary)}
/* channels */
.chn{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:28px}
.chc{padding:20px 22px;display:flex;flex-direction:column;gap:14px}
.chc-h{display:flex;align-items:center;gap:12px}.chc-h i{width:40px;height:40px;border-radius:50%;background:#1d1f23 center/cover;flex:none;filter:grayscale(1)}
.chc-h b{display:block;font-size:16px;font-weight:560}.chc-h small{font-size:13px;color:var(--text-secondary)}
.chc dl{margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding-top:14px;border-top:1px solid var(--border)}
.chc dt{font-size:12px;color:var(--text-secondary)}.chc dd{margin:4px 0 0;font:500 15px var(--font-mono);white-space:nowrap}
.chc dd.up{color:var(--success)}
.lbl{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:18px}
.exs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:40px}
.exs.x3{grid-template-columns:repeat(3,minmax(0,1fr))}
/* mistakes */
.mst{list-style:none;margin:28px 0 0;padding:0;counter-reset:m;display:flex;flex-direction:column}
.mst li{display:grid;grid-template-columns:44px minmax(0,1fr);gap:14px;padding:20px 0;border-top:1px solid var(--border)}
.mst li:first-child{border-top:0;padding-top:0}
.mst li>span{font:500 13px/26px var(--font-mono);color:var(--text-secondary)}
.mst b{display:block;font-size:18px;line-height:26px;font-weight:560;letter-spacing:-.01em}
.mst p{margin:6px 0 0;font-size:15px;line-height:24px;color:var(--text-secondary);text-wrap:pretty}
/* related */
.rel{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.rel a{padding:24px;display:flex;flex-direction:column;gap:8px;color:inherit;transition:border-color .2s,transform .3s var(--lp-ease)}
.rel a:hover{border-color:var(--border-strong);color:inherit;transform:translateY(-2px)}
.rel em{font:500 11px var(--font-mono);font-style:normal;letter-spacing:.1em;text-transform:uppercase;color:var(--text-secondary)}
.rel b{font-size:20px;font-weight:560;letter-spacing:-.015em;display:flex;justify-content:space-between;gap:10px;align-items:center}.rel b [data-icon]{color:var(--text-secondary);display:flex}
.rel span{font-size:15px;line-height:23px;color:var(--text-secondary)}
/* solution */
.so-hero .cp-hc h1{font-size:68px;max-width:900px}
.so-cta{display:flex;gap:12px;margin-top:30px}
.so-stage{position:relative;max-width:1120px;margin:64px auto 0}
.so-stage>.ui{margin-right:220px}
.so-vid{position:absolute;right:0;top:120px;width:470px;z-index:4;border-radius:14px;overflow:hidden;background:#000}
.so-vid .exc{width:100%;display:block}.so-vid .exc-f{border-radius:0;outline:0}
.so-vid .exc-play{opacity:1;transform:none}
.so-vid figcaption{display:flex;justify-content:space-between;gap:10px;padding:10px 14px;background:var(--surface-sunken);font-size:13px;color:var(--text-secondary)}.so-vid figcaption b{color:var(--text-primary);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sfour{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.s4c{padding:26px;display:flex;flex-direction:column;gap:8px;overflow:hidden}
.s4c h3{margin:0;font-size:21px;line-height:28px;font-weight:560;letter-spacing:-.015em}
.s4c p{margin:0;font-size:15px;line-height:23px;color:var(--text-secondary);max-width:460px}
.s4c .vis{margin-top:18px;height:340px;overflow:hidden;-webkit-mask-image:linear-gradient(180deg,#000 75%,transparent);mask-image:linear-gradient(180deg,#000 75%,transparent)}
.s4c .ui{box-shadow:none}
.rf{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:16px}
.rf-c{padding:30px;display:flex;flex-direction:column;gap:18px}
.rf-c h3{margin:0;font-size:22px;font-weight:560;letter-spacing:-.015em}
.rf-c ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:16px}
.rf-c li{display:grid;grid-template-columns:20px minmax(0,1fr);gap:12px;font-size:15px;line-height:23px;color:var(--text-secondary)}
.rf-c li b{display:block;color:var(--text-primary);font-weight:560;font-size:16px}
.rf-c li [data-icon]{padding-top:2px;color:var(--text-primary)}
.rf-ph{position:relative;height:230px;margin-top:auto}
.rf-ph .pcard{width:44%}
.gn{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px 16px}
.gt{display:flex;flex-direction:column;gap:8px}
.gt-f{position:relative;aspect-ratio:16/9;border-radius:10px;overflow:hidden;outline:1px solid var(--border);background:var(--surface-sunken)}
.gt b{font-size:16px;font-weight:560;letter-spacing:-.01em}.gt span{font-size:13px;line-height:19px;color:var(--text-secondary);margin-top:-4px}
.wg{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--border);border:1px solid var(--border);border-radius:18px;overflow:hidden}
.wg>div{background:var(--surface);padding:26px;display:flex;flex-direction:column;gap:8px}
.wg [data-icon]{color:var(--text-primary);margin-bottom:6px}.wg .key [data-icon]{color:var(--primary-text)}
.wg b{font-size:17px;font-weight:560;letter-spacing:-.01em}.wg p{margin:0;font-size:14px;line-height:21px;color:var(--text-secondary)}
.lng{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:18px;font-size:14px;color:var(--text-secondary)}
.pl{padding:26px 30px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.pl p{margin:0;font-size:20px;line-height:30px;letter-spacing:-.01em;text-wrap:pretty}.pl p span{color:var(--text-secondary)}
.pl .lp-mono{color:var(--primary-text)}
/* phone */
@media (max-width:720px){
.ui-comp{padding:16px}.vstage{margin-top:32px}.pcard.flo{display:none}
.vslot{border-radius:12px}.vl-dots{gap:12px;padding:10px;font-size:10px}
.wt-ch{grid-template-columns:minmax(0,1fr)}.wt-pip{display:none}.wt-bar{padding:10px 12px;gap:10px;font-size:11px}
.ar{grid-template-columns:minmax(0,1fr);gap:0;padding-top:16px}
.toc{display:none}
.toc-m{display:block;margin-bottom:36px;border:1px solid var(--border);border-radius:12px;background:var(--surface-sunken)}
.toc-m summary{list-style:none;display:flex;justify-content:space-between;align-items:center;padding:14px 16px;font-size:15px;font-weight:500;cursor:pointer}
.toc-m summary::-webkit-details-marker{display:none}
.toc-m summary [data-icon]{transition:transform .3s var(--lp-ease);color:var(--text-secondary)}.toc-m[open] summary [data-icon]{transform:rotate(180deg)}
.toc-m nav{display:flex;flex-direction:column;padding:0 16px 12px}.toc-m a{padding:8px 0;font-size:14px;color:var(--text-secondary);border-top:1px solid var(--border)}
.as{padding-bottom:56px}.as h2{font-size:26px}.as>p,.as .p{font-size:15px;line-height:25px}.as .vis{margin-top:22px}
.sa2{padding:20px}.sa2 p{font-size:15px;line-height:25px}
.kit,.req,.chn,.exs,.exs.x3,.rel,.sfour,.rf{grid-template-columns:minmax(0,1fr)}
.kc{padding:18px}
.prm pre{font-size:12.5px;line-height:20px;padding:14px}
.eco .ct{font-size:13px}.eco .ct td,.eco .ct th{padding:12px 10px}
.calc2{grid-template-columns:minmax(0,1fr)}.calc2 .calc-in{border-right:0;border-bottom:1px solid var(--border);padding:20px}.calc2 .calc-out{padding:20px}
.rq b{font-size:32px}.wx{padding:18px}.wx-eq>span b{font-size:15px}
.chc dl{grid-template-columns:repeat(3,minmax(0,1fr))}
.mst li{grid-template-columns:32px minmax(0,1fr);gap:8px}.mst b{font-size:16px;line-height:23px}
.so-hero .cp-hc h1{font-size:36px}.so-cta{flex-direction:column;width:100%}
.so-stage{margin-top:36px}.so-stage>.ui{margin-right:0}
.so-vid{position:relative;right:auto;top:auto;width:auto;margin-top:16px}
.s4c{padding:20px}.rf-c{padding:22px}.rf-ph{height:auto;display:flex;gap:10px;margin-top:4px}.rf-ph .pcard{position:relative;width:auto;flex:1;left:auto!important;top:auto!important;right:auto!important;transform:none}
.gn{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 10px}.gt b{font-size:14px}.gt span{font-size:12px;line-height:17px}
.wg{grid-template-columns:minmax(0,1fr)}.wg>div{padding:20px}
.pl{padding:20px}.pl p{font-size:17px;line-height:26px}
.pcard{transform:none!important}
.mo .asm .tl-sc{transform:translateY(12px)}
}
@media (prefers-reduced-motion:reduce){.caret{animation:none}}
/* сборка: буква-аватар канала вместо картинки (реальные каналы, их обложки не берём) */
.chc-h i.chc-a{display:flex;align-items:center;justify-content:center;filter:none;font:560 16px/1 var(--font-sans);font-style:normal;color:var(--text-primary);background:var(--surface-hover)}
.chc:hover{border-color:var(--border-strong)}
.gt-f img{display:block;width:100%;height:100%;object-fit:cover}
/* сборка: у лендинга .exc{grid-column:span 2} для его 6-колоночной сетки — здесь карточки идут по сетке .exs */
.exs .exc{grid-column:auto}
/* сборка: три связанные ссылки — в три колонки (на телефоне остаётся одна) */
@media (min-width:721px){.rel:has(>a:nth-child(3)){grid-template-columns:repeat(3,minmax(0,1fr))}}
/* сборка: строки со временем в макетах гайда по сценарию (хук, оглавление глав) */
.chk.hk .chk-r{grid-template-columns:44px minmax(0,1fr)}
.ttl.tm .ttl-r{grid-template-columns:44px minmax(0,1fr)}
/* чек-лист перед заявкой (гайд reused content) */
.chk.ck .chk-r{grid-template-columns:18px minmax(0,1fr);cursor:pointer}
.chk.ck input{width:16px;height:16px;margin:0;accent-color:var(--success)}
.chk.ck input:checked+span{color:var(--text-secondary)}
.chk-r [data-icon="triangle-alert"]{color:var(--warning)}