/* Headless modules: stack collapse, plug-in apps, build chooser */
.stk{border:1px solid var(--line2);border-radius:28px;background:var(--s1);padding:clamp(18px,3vw,36px);display:grid;gap:clamp(22px,3vw,32px)}
.stk-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
.stk-tg{position:relative;display:inline-flex;padding:4px;border-radius:999px;background:var(--s2);border:1px solid var(--line)}
.stk-tg button{position:relative;z-index:1;border:0;background:none;padding:9px 18px;border-radius:999px;cursor:pointer;font-size:14px;letter-spacing:-.01em;color:var(--ink2);transition:color .4s}
.stk-tg button.on{color:var(--btnT)}
.stk-tg i{position:absolute;top:4px;bottom:4px;left:4px;border-radius:999px;background:var(--btn);transition:transform .55s var(--ease),width .55s var(--ease)}
.stk-cap{font-size:14px;color:var(--ink2)}
.stk-board{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;border-radius:20px;padding-top:0;transition:gap .8s var(--ease),padding .8s var(--ease),background .5s,box-shadow .6s}
.stk-lbl{position:absolute;left:18px;top:14px;display:flex;align-items:center;gap:10px;font-size:13.5px;font-weight:500;letter-spacing:-.01em;opacity:0;transform:translateY(6px);transition:opacity .4s,transform .6s var(--ease)}
.stk-lbl em{font-style:normal;font-weight:400;color:var(--ink3)}
.stk-lbl:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue)}
.stk-t{position:relative;background:var(--s2);border:1px solid var(--line);border-radius:14px;padding:14px 14px 12px;display:flex;flex-direction:column;gap:8px;min-height:122px;transform:translate(var(--x,0),var(--y,0)) rotate(var(--r,0));transition:transform .8s var(--ease),border-radius .8s var(--ease),border-color .5s,background .5s}
.stk-t .mono{font-size:12px}
.stk-t b{font-weight:500;font-size:15px;letter-spacing:-.02em;line-height:1.2}
.stk-t .sw{position:relative;display:grid}
.stk-t .sw>*{grid-area:1/1;transition:opacity .45s,transform .5s var(--ease)}
.stk-t .sw .h{opacity:0;transform:translateY(5px)}
.stk-bill{margin-top:auto;display:flex;gap:5px;flex-wrap:wrap;transition:opacity .4s}
.stk-bill span{font-size:11px;line-height:1;padding:5px 7px;border-radius:6px;background:var(--s1);color:var(--ink3);border:1px solid var(--line2)}
.stk-ok{position:absolute;right:12px;top:12px;width:16px;height:16px;border-radius:50%;background:var(--blue);opacity:0;transform:scale(.4);transition:opacity .35s,transform .5s var(--ease)}
.stk-ok:after{content:"";position:absolute;left:5px;top:3.5px;width:4px;height:7px;border:solid #fff;border-width:0 1.5px 1.5px 0;transform:rotate(45deg)}
.stk.one .stk-board{gap:0;padding-top:46px;background:var(--s2);box-shadow:0 0 0 1.5px var(--blue)}
.stk.one .stk-lbl{opacity:1;transform:none;transition-delay:.35s}
.stk.one .stk-t{transform:none;border-radius:0;border-color:transparent;border-top-color:var(--line2);border-right-color:var(--line2);background:transparent}
.stk.one .stk-t:nth-child(5n+1){border-right-color:var(--line2)}
.stk.one .stk-t .sw .a{opacity:0;transform:translateY(-5px)}
.stk.one .stk-t .sw .h{opacity:1;transform:none}
.stk.one .stk-bill{opacity:0}
.stk.one .stk-ok{opacity:1;transform:none;transition-delay:calc(.3s + var(--i,0)*.05s)}
.stk.one .stk-t:nth-child(6){border-right-color:transparent}
.stk-m{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line2);border-radius:16px;overflow:hidden;border:1px solid var(--line2)}
.stk-m div{background:var(--s2);padding:16px 18px;display:flex;flex-direction:column;gap:4px}
.stk-m b{position:relative;display:grid;font-size:clamp(24px,2.6vw,34px);font-weight:500;letter-spacing:-.04em;line-height:1.05}
.stk-m b>span{grid-area:1/1;transition:opacity .4s,transform .55s var(--ease)}
.stk-m b .h{opacity:0;transform:translateY(8px);color:var(--blue)}
.stk.one .stk-m b .a{opacity:0;transform:translateY(-8px)}
.stk.one .stk-m b .h{opacity:1;transform:none}
@media(max-width:860px){.stk-board{grid-template-columns:repeat(2,minmax(0,1fr))}.stk-m{grid-template-columns:repeat(2,minmax(0,1fr))}.stk-t{--r:0deg!important;--x:0!important;--y:0!important}.stk.one .stk-t{border-right-color:var(--line2)}}

.plg{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:clamp(20px,3vw,40px);align-items:start}
.plg-apps{display:flex;flex-direction:column;gap:18px}
.plg-list{display:flex;flex-wrap:wrap;gap:8px}
.plg-list button{display:inline-flex;align-items:center;gap:8px;padding:10px 14px 10px 12px;border-radius:999px;border:1px solid var(--line);background:var(--s2);cursor:pointer;font-size:14px;letter-spacing:-.01em;color:var(--ink);transition:border-color .3s,background .3s,color .3s,transform .3s}
.plg-list button:hover{border-color:var(--ink3);transform:translateY(-1px)}
.plg-list button i{position:relative;width:16px;height:16px;border-radius:50%;border:1px solid var(--line)}
.plg-list button i:before,.plg-list button i:after{content:"";position:absolute;left:50%;top:50%;width:8px;height:1.5px;background:currentColor;transform:translate(-50%,-50%);transition:transform .35s var(--ease)}
.plg-list button i:after{transform:translate(-50%,-50%) rotate(90deg)}
.plg-list button.on{background:var(--blueT);border-color:var(--blue);color:var(--blue)}
.plg-list button.on i{border-color:var(--blue)}
.plg-list button.on i:after{transform:translate(-50%,-50%) rotate(0)}
.plg-list button em{font-style:normal;font-size:11.5px;color:var(--ink3)}
.plg-site{border:1px solid var(--line);border-radius:22px;background:var(--s2);overflow:hidden;box-shadow:0 30px 60px -40px rgba(0,0,0,.35)}
.plg-h{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line2)}
.plg-h b{font-weight:500;font-size:14.5px;letter-spacing:-.01em}
.plg-rows{display:flex;flex-direction:column;padding:6px 0;min-height:260px}
.plg-r{display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:12px;padding:10px 18px;animation:plgIn .55s var(--ease) both}
.plg-r>i{width:28px;height:28px;border-radius:8px;background:var(--s1);border:1px solid var(--line2)}
.plg-r b{font-weight:500;font-size:14px;letter-spacing:-.01em}
.plg-r span{font-size:12.5px;color:var(--ink3)}
.plg-r em{font-style:normal;font-size:11.5px;color:var(--blue);background:var(--blueT);padding:4px 8px;border-radius:6px}
.plg-f{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 18px;border-top:1px solid var(--line2);font-size:13px;color:var(--ink2)}
.plg-f b{font-weight:500;color:var(--ink)}
@keyframes plgIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@media(max-width:860px){.plg{grid-template-columns:1fr}}

.chs{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px}
.chs-q{grid-column:1/-1;display:flex;flex-direction:column;gap:14px;margin-bottom:10px}
.chs-q .mono{font-size:13px}
.chs-st{display:flex;flex-wrap:wrap;gap:8px}
.chs-st button{text-align:left;padding:11px 16px;border-radius:14px;border:1px solid var(--line);background:var(--s2);cursor:pointer;font-size:14.5px;letter-spacing:-.01em;line-height:1.35;color:var(--ink);max-width:44ch;transition:border-color .3s,background .3s,color .3s}
.chs-st button:hover{border-color:var(--ink3)}
.chs-st button.on{border-color:var(--ink);background:var(--ink);color:var(--bg)}
.chs-c{position:relative;border:1px solid var(--line);border-radius:24px;background:var(--s2);padding:clamp(22px,3vw,32px);display:flex;flex-direction:column;gap:14px;transition:border-color .4s,box-shadow .5s,opacity .4s}
.chs-c h3{font-size:24px}
.chs-c ul{list-style:none;display:flex;flex-direction:column;gap:10px;margin-top:4px}
.chs-c li{display:grid;grid-template-columns:16px 1fr;gap:10px;font-size:14.5px;color:var(--ink2);line-height:1.45}
.chs-c li:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ink3);margin:7px 0 0 4px}
.chs-c .lk{margin-top:auto;padding-top:10px;font-size:14.5px;font-weight:500}
.chs-c .tag{position:absolute;right:18px;top:18px;font-size:12px;padding:5px 10px;border-radius:999px;background:var(--blue);color:#fff;opacity:0;transform:scale(.8);transition:opacity .3s,transform .4s var(--ease)}
.chs.pick .chs-c{opacity:.55}
.chs.pick .chs-c.on{opacity:1;border-color:var(--blue);box-shadow:0 0 0 1px var(--blue)}
.chs-c.on .tag{opacity:1;transform:none}
.chs-c.on li:before{background:var(--blue)}
.chs-n{grid-column:1/-1;font-size:13.5px;color:var(--ink3);padding-top:6px}
@media(max-width:760px){.chs{grid-template-columns:1fr}}