/* ===== v3 additions ===== */
@view-transition{navigation:auto}
#hdr{view-transition-name:hdr}
::view-transition-old(root){animation:.35s cubic-bezier(.4,0,.2,1) both vtout}::view-transition-new(root){animation:.45s cubic-bezier(.2,.7,.2,1) both vtin}
@keyframes vtout{to{opacity:0;transform:translateY(-12px)}}@keyframes vtin{from{opacity:0;transform:translateY(16px)}}
.prog{position:fixed;left:0;top:0;height:3px;width:100%;background:#F5F5F3;transform-origin:0 50%;transform:scaleX(0);z-index:60;mix-blend-mode:difference;pointer-events:none}
/* hero v3 */
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.kicker:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--ink);box-shadow:0 0 0 0 rgba(11,11,12,.5);animation:ping 2s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(11,11,12,.45)}70%{box-shadow:0 0 0 12px rgba(11,11,12,0)}100%{box-shadow:0 0 0 0 rgba(11,11,12,0)}}
.rot{display:block;height:1.12em;overflow:hidden;position:relative}
.rot span{position:absolute;left:0;top:0;white-space:nowrap;transform:translateY(110%);transition:transform .7s cubic-bezier(.7,0,.2,1)}
.hero-h{font-size:clamp(36px,4.9vw,76px)!important;line-height:1.06!important}
.rot{color:var(--ink);-webkit-text-stroke:0}
.u{background:linear-gradient(var(--ink),var(--ink)) 0 92%/100% 4px no-repeat}
/* split words */
.w{display:inline-block;overflow:hidden;vertical-align:top}.w>i{display:inline-block;font-style:normal;transform:translateY(105%);transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.in .w>i,.w.in>i{transform:none}
/* horizontal pinned */
.hscroll{background:var(--ink);color:#F5F5F3;position:relative}
.hs-sticky{padding:110px 0}
.hs-head{padding:0 var(--px) 48px;display:flex;justify-content:space-between;align-items:end;gap:40px}
.hs-track{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:0 var(--px)}
.panel{border-top:1px solid #3A3E46;padding-top:28px;display:flex;flex-direction:column;gap:16px}
.panel .n{font-family:var(--fx);font-stretch:125%;font-weight:700;font-size:44px;color:#5A5F66}
.panel h3{font-family:var(--fx);font-stretch:125%;font-size:26px}
.panel p{color:#BDBDB8;font-size:17px;line-height:1.6}
@media (min-width:1101px) and (prefers-reduced-motion:no-preference){
 .hscroll.pin{height:320vh}.hscroll.pin .hs-sticky{position:sticky;top:0;height:100vh;padding:0;display:flex;flex-direction:column;justify-content:center;overflow:hidden}
 .hscroll.pin .hs-track{display:flex;width:max-content;gap:0;padding:0 var(--px);will-change:transform}
 .hscroll.pin .panel{width:min(46vw,640px);min-height:52vh;padding:40px 56px 40px 0;margin-right:56px;border-top:0;border-left:1px solid #3A3E46;padding-left:40px;justify-content:flex-end}
 .hscroll.pin .panel .n{font-size:120px;line-height:1;color:#2A2D33}
 .hscroll.pin .panel h3{font-size:40px}
 .hscroll.pin .panel p{font-size:19px;max-width:460px}
}
.hs-bar{margin:40px var(--px) 0;height:2px;background:#2A2D33;position:relative;overflow:hidden}.hs-bar i{position:absolute;inset:0;background:#F5F5F3;transform-origin:0 50%;transform:scaleX(0)}
/* calculator */
.calc{display:grid;grid-template-columns:1.1fr 1fr;gap:24px}
.calc .in-box{background:#fff;border:1px solid var(--line);border-radius:22px;padding:40px;display:flex;flex-direction:column;gap:34px}
.sl{display:flex;flex-direction:column;gap:14px}.sl .row b{white-space:nowrap;font-family:var(--fx);font-stretch:125%;font-size:28px}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:4px;min-height:0;padding:0;border:0;border-radius:4px;background:linear-gradient(var(--ink),var(--ink)) 0/var(--p,30%) 100% no-repeat,#DADAD6;cursor:pointer}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:26px;height:26px;border-radius:50%;background:var(--ink);border:4px solid #fff;box-shadow:0 2px 10px rgba(0,0,0,.25)}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--ink);border:4px solid #fff}
.calc .out{background:var(--ink);color:#F5F5F3;border-radius:22px;padding:40px;display:flex;flex-direction:column;gap:22px;justify-content:space-between}
.big{font-family:var(--fx);font-stretch:125%;font-weight:700;font-size:clamp(48px,6vw,84px);line-height:1;letter-spacing:-.02em}
.calc .out .txt{color:#BDBDB8}.calc .stat{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-top:22px;border-top:1px solid #2A2D33}.calc .stat b{font-family:var(--fx);font-stretch:125%;font-size:26px;display:block}.calc .stat span{font-size:13px;color:#9C9C98}
/* link cards */
.lc{display:flex;flex-direction:column;gap:14px;padding:32px;border-radius:20px;background:#fff;border:1px solid var(--line);text-decoration:none;color:inherit;position:relative;overflow:hidden;min-height:240px}
.lc:after{content:"→";position:absolute;right:28px;top:26px;font-size:24px;transition:transform .3s}.lc:hover:after{transform:translateX(6px)}
.lc .k{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--mute2)}
.lc.ink{background:var(--ink);color:#F5F5F3;border-color:var(--ink)}.lc.ink .txt{color:#BDBDB8}.lc.ink .k{color:#9C9C98}
/* form v3 */
.pills{display:flex;flex-wrap:wrap;gap:8px}.pills label{position:relative;cursor:pointer}.pills input{position:absolute;opacity:0;width:1px;height:1px;min-height:0}
.pills span{display:inline-flex;align-items:center;min-height:40px;padding:0 16px;border-radius:999px;border:1px solid #C4C4BF;font-size:14px;font-weight:600;transition:background .2s,color .2s,border-color .2s}
.pills input:checked+span{background:var(--ink);color:#fff;border-color:var(--ink)}.pills input:focus-visible+span{outline:2px solid var(--ink);outline-offset:2px}
.fs{border:0;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.fs legend{font-size:15px;font-weight:600;padding:0;margin-bottom:10px}
.ok{display:none;flex-direction:column;gap:14px;align-items:flex-start}.sent .ok{display:flex}.sent .fields{display:none}
.fields{display:flex;flex-direction:column;gap:18px}
.err{color:#B3261E;font-size:14px;display:none}.err.on{display:block}
/* guides & prose */
.article{padding:0 var(--px) 100px;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:24px}
.article .toc{grid-column:span 3;position:sticky;top:110px;align-self:start;display:flex;flex-direction:column;gap:10px;font-size:15px}
.article .toc a{color:var(--mute2);text-decoration:none}.article .toc a:hover{color:var(--ink)}
.article .body{grid-column:5/span 8;display:flex;flex-direction:column;gap:34px;max-width:760px}
.article h2{font-family:var(--fx);font-stretch:125%;font-weight:700;font-size:26px;margin-bottom:12px;scroll-margin-top:100px}
.article p,.article li{font-size:17px;line-height:1.7;color:var(--mute)}.article ul,.article ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:8px}
.note{background:#fff;border:1px solid var(--line);border-left:3px solid var(--ink);border-radius:12px;padding:18px 20px;font-size:15px;line-height:1.6;color:var(--mute)}
.tbl{width:100%;border-collapse:collapse;font-size:15px}.tbl th,.tbl td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}.tbl th{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--mute2)}
.tw{overflow-x:auto}
.pain{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.pain div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:8px}
.pain b{font-family:var(--fx);font-stretch:125%;font-size:19px}
@media (max-width:1100px){.calc{grid-template-columns:1fr}.hs-track{grid-template-columns:1fr 1fr;gap:32px 24px}.article{display:flex;flex-direction:column;gap:28px}.article .toc{position:static}}
@media (max-width:760px){
 .hs-sticky{padding:56px 0}.hs-head{flex-direction:column;align-items:flex-start;padding-bottom:28px}.hs-track{grid-template-columns:1fr 1fr;gap:24px 16px}.panel{padding-top:16px;gap:8px}.panel .n{font-size:24px}.panel h3{font-size:17px}.panel p{font-size:14px}.hs-bar{display:none}
 .calc .in-box,.calc .out{padding:24px;gap:24px}.sl .row b{font-size:22px}.lc{padding:24px;min-height:0}.pain{grid-template-columns:1fr}.article{padding-bottom:64px}
 .rot{height:1.14em}.hero-h{font-size:clamp(28px,8.4vw,40px)!important}
}
.article .toc a.btn{color:#fff}
.calc .stat{grid-template-columns:repeat(3,1fr)}.calc .pills span{min-height:36px;font-size:13px}
.gain{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.gain div{border-top:1px solid #3A3E46;padding-top:24px;display:flex;flex-direction:column;gap:12px}
.gain .n{font-family:var(--fx);font-stretch:125%;font-weight:700;font-size:15px;color:#6B6F76}
.gain h3{font-family:var(--fx);font-stretch:125%;font-weight:700;font-size:22px;line-height:1.2}
.gain p{color:#BDBDB8;font-size:16px;line-height:1.6}
@media (max-width:1100px){.gain{grid-template-columns:1fr 1fr;gap:32px 24px}}
@media (max-width:760px){.gain{grid-template-columns:1fr;gap:20px}.gain div{padding-top:16px;gap:6px}.gain h3{font-size:18px}.gain p{font-size:15px}
 #top .l{display:contents}#top .r{order:1}#top .bref{order:2}#top{gap:22px}}
.hcta{display:none}
@media (max-width:760px){
 .mcta{display:none!important}
 #hdr .logo img{height:clamp(10px,3.1vw,14px)!important;width:auto}
 .hcta{display:inline-flex;align-items:center;margin-left:auto;margin-right:6px;min-height:36px;padding:0 14px;border-radius:999px;background:#F5F5F3;color:#0B0B0C;font-size:14px;font-weight:700;text-decoration:none;white-space:nowrap}
 #hdr nav{display:none}.menu-btn{width:40px;height:40px}
}
/* cookie banner (compact) */
.ck{position:fixed;right:20px;bottom:20px;z-index:80;width:min(360px,calc(100% - 40px))}
.ck-in{background:#0B0B0C;color:#F5F5F3;border:1px solid #2A2D33;border-radius:14px;padding:14px 16px;box-shadow:0 16px 40px -18px rgba(0,0,0,.5);display:flex;flex-direction:column;gap:10px;font-size:13px;line-height:1.5}
.ck-in p{margin:0;color:#BDBDB8}.ck-in a{color:#F5F5F3}
.ck-opt{display:flex;flex-direction:column;border-top:1px solid #2A2D33}.ck-opt[hidden]{display:none}
.ck-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:9px 0;border-bottom:1px solid #2A2D33;position:relative}
.ck-row b{display:block;font-size:13px}.ck-row span{display:block;font-size:12px;color:#9C9C98}.ck-row em{font-style:normal;font-size:12px;color:#9C9C98;white-space:nowrap}
label.ck-row{cursor:pointer}.ck-row input{position:absolute;opacity:0;width:1px;height:1px}
.ck-sw{flex:none;width:36px;height:22px;border-radius:99px;background:#3A3E46;position:relative;transition:background .2s}
.ck-sw:after{content:"";position:absolute;left:3px;top:3px;width:16px;height:16px;border-radius:50%;background:#F5F5F3;transition:transform .2s}
.ck-row input:checked+.ck-sw{background:#F5F5F3}.ck-row input:checked+.ck-sw:after{transform:translateX(14px);background:#0B0B0C}
.ck-row input:focus-visible+.ck-sw{outline:2px solid #F5F5F3;outline-offset:2px}
.ck-f{display:flex;align-items:center;gap:8px}
.ck-btn{flex:1;min-height:34px;border-radius:999px;border:1px solid #F5F5F3;background:#F5F5F3;color:#0B0B0C;font:inherit;font-weight:700;font-size:13px;cursor:pointer;padding:0 12px}
.ck-p{background:none;border:0;color:#BDBDB8;font:inherit;font-size:12.5px;text-decoration:underline;cursor:pointer;padding:4px 2px;white-space:nowrap}
.ck.inline{position:static;width:auto}
.ck.inline .ck-in{border-radius:0;border:0;border-bottom:1px solid #2A2D33;box-shadow:none;padding:12px var(--px)}
@media (max-width:760px){.ck:not(.inline){left:12px;right:12px;bottom:auto;top:calc(76px + env(safe-area-inset-top,0px));width:auto}}