/* Underpixel demo kit: shared motion and UI pieces for the /demo pages.
   Each page sets --kit-accent (brand colour) and, if it is dark, --kit-panel / --kit-text. */
:root{--kit-accent:#1D4F91;--kit-panel:#fff;--kit-text:#15171A;--kit-muted:#6B6E73;--kit-line:#E2E4E8}

/* reveal on scroll (kit.js adds .rv, then .in when visible) */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.rv.kit-a{transition:none}.rv.kit-a.in{opacity:0}  /* anime.js sets the real opacity inline; this stops a one-frame flash */
.kit-anime .dw-item,.kit-anime .cm-card,.kit-anime .wz-step.on{animation:none}

/* dropdown / mega menu: hover or keyboard focus on desktop, hidden inside the mobile burger menu */
.dd{position:relative;display:flex;align-items:center}
.dd>a{display:inline-flex;align-items:center;gap:6px}
.dd>a svg{transition:transform .2s}
.dd:hover>a svg,.dd:focus-within>a svg{transform:rotate(180deg)}
.dd-panel{position:absolute;top:100%;left:50%;z-index:40;min-width:240px;margin-top:14px;padding:10px;background:var(--kit-panel);color:var(--kit-text);
  box-shadow:0 24px 60px rgba(0,0,0,.18),0 0 0 1px var(--kit-line);opacity:0;visibility:hidden;transform:translate(-50%,10px);transition:opacity .2s,transform .2s,visibility .2s}
.dd-panel::before{content:"";position:absolute;left:0;right:0;top:-16px;height:16px}
.dd:hover .dd-panel,.dd:focus-within .dd-panel{opacity:1;visibility:visible;transform:translate(-50%,0)}
.dd-panel a{display:flex;align-items:center;gap:12px;padding:10px 12px;font-size:14px;font-weight:500;border:0!important;color:var(--kit-text)!important}
.dd-panel a:hover{background:rgba(127,127,127,.12)}
.dd-panel small{display:block;font-size:12px;font-weight:400;color:var(--kit-muted)}
.dd-panel .th{width:56px;height:40px;flex-shrink:0;background:#e9ebee center/cover no-repeat}
.dd-panel.mega{display:grid;grid-template-columns:repeat(var(--cols,3),minmax(190px,1fr));gap:4px;width:max-content}
@media (max-width:1024px),(hover:none){.dd-panel{display:none}.dd>a svg{display:none}}

/* layers: right-side drawer and centred modal */
.up-layer{position:fixed;inset:0;z-index:1000;background:rgba(10,12,14,.55);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.up-layer.open{opacity:1;visibility:visible}
.up-panel{position:absolute;background:var(--kit-panel);color:var(--kit-text);display:flex;flex-direction:column;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.drawer .up-panel{top:0;right:0;bottom:0;width:min(440px,100%);transform:translateX(100%);transition:transform .35s cubic-bezier(.2,.7,.2,1)}
.drawer.open .up-panel{transform:none}
.modal .up-panel{top:50%;left:50%;width:min(860px,calc(100% - 32px));max-height:calc(100% - 32px);overflow:auto;transform:translate(-50%,-46%) scale(.97);transition:transform .3s cubic-bezier(.2,.7,.2,1)}
.modal.open .up-panel{transform:translate(-50%,-50%)}
.up-x{position:absolute;top:12px;right:12px;z-index:2;width:40px;height:40px;border:0;background:rgba(127,127,127,.15);color:inherit;font-size:22px;line-height:1;cursor:pointer}
.up-x:hover{background:rgba(127,127,127,.3)}
body.up-lock{overflow:hidden}

/* drawer parts */
.dw-head{display:flex;justify-content:space-between;align-items:center;padding:22px 24px;border-bottom:1px solid var(--kit-line)}
.dw-head b{font-size:20px}
.dw-head .up-x{position:static}
.dw-body{flex:1;overflow:auto;padding:8px 24px}
.dw-item{display:grid;grid-template-columns:72px 1fr auto;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--kit-line);animation:kitIn .35s both}
.dw-item .th{width:72px;height:54px;background:#e9ebee center/cover no-repeat}
.dw-item b{display:block;font-size:15px}
.dw-item small{color:var(--kit-muted);font-size:12px}
.dw-item .rm{background:none;border:0;padding:0;margin-top:4px;color:var(--kit-muted);font-size:12px;text-decoration:underline;cursor:pointer}
.dw-empty{padding:48px 0;text-align:center;color:var(--kit-muted)}
.dw-foot{padding:20px 24px 24px;border-top:1px solid var(--kit-line);display:flex;flex-direction:column;gap:10px}
.dw-foot small{color:var(--kit-muted);font-size:12px;text-align:center}

/* qty stepper */
.kq{display:inline-flex;align-items:center;border:1px solid var(--kit-line)}
.kq button{width:32px;height:32px;border:0;background:none;color:inherit;font-size:16px;cursor:pointer}
.kq button:hover{background:rgba(127,127,127,.15)}
.kq span{min-width:26px;text-align:center;font-weight:600;font-size:14px}

/* quick view */
.qv{display:grid;grid-template-columns:1.1fr 1fr}
.qv .ph{min-height:360px;background:#e9ebee center/cover no-repeat}
.qv .tx{padding:36px 32px 32px;display:flex;flex-direction:column;gap:14px}
.qv .code{font-size:13px;color:var(--kit-accent);font-weight:600}
.qv h3{font-size:30px;letter-spacing:-.02em;margin:0}
.qv p{margin:0;color:var(--kit-muted)}
.qv dl{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;margin:6px 0;font-size:14px}
.qv dt{color:var(--kit-muted)}.qv dd{margin:0;font-weight:600}
@media (max-width:700px){.qv{grid-template-columns:1fr}.qv .ph{min-height:220px}.qv .tx{padding:24px 20px}}

/* small motion helpers */
.bump{animation:kitBump .45s}
@keyframes kitBump{30%{transform:scale(1.35)}}
@keyframes kitIn{from{opacity:0;transform:translateY(10px)}}
.kit-in{animation:kitIn .4s both}
@media (prefers-reduced-motion:reduce){.rv{transform:none;transition:opacity .6s}.bump,.kit-in,.dw-item{animation:none}}

/* datasheet pop-up */
#up-sheet .up-panel{width:min(820px,calc(100% - 32px));background:#fff;color:#16181B}
.ds-doc{padding:36px 40px 30px;font-size:14px}
.ds-top{display:flex;justify-content:space-between;gap:16px;align-items:baseline;padding-bottom:14px;border-bottom:3px solid var(--kit-accent);margin-right:40px}
.ds-top b{font-size:18px;letter-spacing:.06em}
.ds-top span{font-size:12px;color:#6B6E73}
.ds-title{display:grid;grid-template-columns:1fr 240px;gap:28px;align-items:start;margin:22px 0 8px}
.ds-code{font-size:13px;font-weight:600;color:var(--kit-accent)}
.ds-title h3{font-size:30px;letter-spacing:-.02em;margin:6px 0 10px}
.ds-title p{margin:0;color:#4a4d52;line-height:1.55}
.ds-img{aspect-ratio:4/3;background:#eceef0 center/cover no-repeat;border:1px solid #E2E4E8}
.ds-doc h4{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#6B6E73;margin:24px 0 8px}
.ds-tab{width:100%;border-collapse:collapse}
.ds-tab th,.ds-tab td{text-align:left;padding:10px 12px;border-bottom:1px solid #E2E4E8}
.ds-tab th{width:42%;font-weight:500;color:#4a4d52;background:#F6F7F8}
.ds-tab td{font-weight:600}
.ds-notes{margin:0;padding-left:18px;color:#4a4d52;line-height:1.7}
.ds-foot{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px;padding-top:16px;border-top:1px solid #E2E4E8}
.ds-foot small{color:#8a8d92;font-size:11px}
.ds-foot span{display:flex;gap:10px}
.ds-btn{display:inline-flex;align-items:center;height:42px;padding:0 18px;border:1px solid #C9CBCF;background:#fff;color:#16181B;font:600 14px Inter,system-ui,sans-serif;cursor:pointer;text-decoration:none}
.ds-btn:hover{border-color:#16181B}
.ds-btn.pri{background:var(--kit-accent);border-color:var(--kit-accent);color:#fff}
@media (max-width:640px){.ds-doc{padding:24px 18px}.ds-title{grid-template-columns:1fr}.ds-top{flex-direction:column;gap:4px}}
@media print{body>*:not(#up-sheet){display:none!important}#up-sheet{position:static;background:none;opacity:1;visibility:visible}
  #up-sheet .up-panel{position:static;transform:none;width:100%;max-height:none;box-shadow:none}#up-sheet .up-x,.ds-foot span{display:none}}

/* Underpixel bar (fixed bottom) + notice toast */
body.up-has-bar{padding-bottom:64px}
.up-bar{position:fixed;left:0;right:0;bottom:0;z-index:950;height:64px;display:flex;align-items:center;gap:20px;padding:0 20px;background:#0b0b0f;color:#fff;font:400 14px/1.3 Inter,system-ui,sans-serif;box-shadow:0 -8px 30px rgba(0,0,0,.25);border-top:1px solid #8b5cf6}
.up-bar p{flex:1;margin:0;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.up-bar b{font-weight:600;background:linear-gradient(90deg,#c4b5fd,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent}
.up-bar p span{color:#b8b6c4}
.up-back{display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 14px;border:1px solid #34323f;color:#e4e2ee!important;text-decoration:none;font-weight:500;white-space:nowrap}
.up-back:hover{border-color:#8b5cf6}
.up-cta{display:inline-flex;align-items:center;gap:5px;height:40px;padding:0 18px;background:#8b5cf6;color:#fff!important;text-decoration:none;font-weight:600;white-space:nowrap;box-shadow:0 0 18px rgba(139,92,246,.45)}
.up-cta:hover{background:#7c3aed}
.up-toast{position:fixed;z-index:9999;left:50%;top:50%;transform:translate(-50%,-50%);width:max-content;max-width:min(420px,calc(100% - 32px));padding:18px 24px;border-radius:14px;background:#8b5cf6;color:#fff;font:600 15px/1.45 Inter,system-ui,sans-serif;text-align:center;box-shadow:0 20px 60px rgba(139,92,246,.45),inset 0 0 0 1px rgba(255,255,255,.15);pointer-events:none;animation:upPop .28s cubic-bezier(.2,.8,.2,1.2)}
.kit-sel{position:fixed;z-index:9990;max-height:320px;overflow:auto;padding:6px;background:var(--kit-panel);color:var(--kit-text);border:1px solid var(--kit-line);box-shadow:0 14px 34px rgba(0,0,0,.14);opacity:0;transform:translateY(-4px);pointer-events:none;transition:opacity .15s,transform .15s}
.kit-sel.open{opacity:1;transform:none;pointer-events:auto}
.kit-sel button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:18px;padding:9px 12px;border:0;background:none;color:inherit;font:inherit;font-size:14px;text-align:left;cursor:pointer;white-space:nowrap}
.kit-sel button:hover{background:rgba(127,127,127,.12)}.kit-sel button:disabled{opacity:.4;cursor:default}
.kit-sel [aria-selected=true]{font-weight:700}.kit-sel [aria-selected=true]::after{content:"✓";color:var(--kit-accent)}
@keyframes upPop{from{opacity:0;transform:translate(-50%,-50%) scale(.9)}}
.kit-still .up-toast{animation-name:upFade}@keyframes upFade{from{opacity:0}}
@media (max-width:760px){.up-bar{gap:10px;padding:0 12px}.up-bar p span,.up-back span,.up-cta span{display:none}.up-bar p{font-size:12px;line-height:1.25;white-space:normal}.up-back{padding:0 12px}.up-cta{padding:0 14px}}
@media print{.up-bar,.up-toast{display:none!important}body.up-has-bar{padding-bottom:0}}