/* Layout: live tub scene pinned (top on phones, left on desktop); choices scroll beside it; price bar fixed at the bottom. */
:root{
  --bg:#EEF1EF; --surface:#FFFFFF; --ink:#16211E; --muted:#5C6964; --line:#D5DCD8;
  --accent:#1E5A4A; --accent-ink:#FFFFFF; --accent-soft:#DCEAE4; --ember:#D9822B;
  --sky-top:#DCE7E9; --sky-bot:#EEF1EF; --deck:#C9B79C; --deck-line:#B09C80;
  --f-display:"Young Serif", Georgia, "Times New Roman", serif;
  --f-body:"Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono:"JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#111816; --surface:#19221F; --ink:#E7EEEA; --muted:#97A59F; --line:#2B3833;
  --accent:#6CC3A6; --accent-ink:#0E1A16; --accent-soft:#1F332C; --ember:#F0A24E;
  --sky-top:#1A2A2E; --sky-bot:#111816; --deck:#4A3F33; --deck-line:#3A3128; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#111816; --surface:#19221F; --ink:#E7EEEA; --muted:#97A59F; --line:#2B3833;
  --accent:#6CC3A6; --accent-ink:#0E1A16; --accent-soft:#1F332C; --ember:#F0A24E;
  --sky-top:#1A2A2E; --sky-bot:#111816; --deck:#4A3F33; --deck-line:#3A3128; color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.5;margin:0}
.wrap{max-width:1180px;margin:0 auto;padding-inline:16px;padding-block:0 120px;display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:900px){.wrap{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:36px;padding-inline:24px}}

header.top{grid-column:1/-1;display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-block:18px 0}
.brand{font-family:var(--f-display);font-size:22px;letter-spacing:.2px}
.brand small{font-family:var(--f-body);font-size:12px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-left:8px}
.proto{font-size:12px;color:var(--muted)}

.stage{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--bg);padding-block:8px 6px;align-self:start}
@media (min-width:900px){.stage{top:calc(env(safe-area-inset-top,0px) + 16px)}}
.scene{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:linear-gradient(180deg,var(--sky-top),var(--sky-bot) 75%)}
.scene svg{display:block;width:100%;height:auto;max-height:38vh}
.scene canvas{display:block;width:100%;aspect-ratio:16/10;max-height:40vh;touch-action:none;cursor:grab}
.scene canvas:active{cursor:grabbing}
.hint{position:absolute;left:10px;bottom:8px;font-size:11.5px;color:var(--muted);background:var(--surface);padding:3px 8px;border-radius:999px;opacity:.9;pointer-events:none}
@media (min-width:900px){.scene svg,.scene canvas{max-height:none}}
.viewtabs{display:flex;gap:4px;padding:3px;margin-bottom:8px;background:var(--surface);border:1px solid var(--line);border-radius:999px;width:max-content;max-width:100%}
.viewtabs button{font:inherit;font-size:13px;font-weight:600;border:0;border-radius:999px;padding:6px 14px;background:transparent;color:var(--muted);cursor:pointer}
.viewtabs button[aria-selected="true"]{background:var(--ink);color:var(--bg)}
.viewtabs small{font-weight:500;opacity:.8}
.photos{display:flex;flex-direction:column;gap:8px}
.phmain{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.phmain img{display:block;width:100%;aspect-ratio:720/458;object-fit:cover;max-height:40vh}
@media (min-width:900px){.phmain img{max-height:none}}
.phbadge{position:absolute;left:10px;bottom:10px;right:10px;display:flex;flex-wrap:wrap;gap:6px}
.phbadge span{font-size:11.5px;font-weight:600;padding:3px 8px;border-radius:999px;background:rgba(14,20,18,.72);color:#fff}
.phbadge span.no{background:rgba(14,20,18,.45);color:#d6dcd9;font-weight:500;text-decoration:line-through}
.thumbs{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px;scrollbar-width:thin}
.thumbs button{flex:none;border:2px solid transparent;border-radius:8px;padding:0;background:none;cursor:pointer;overflow:hidden}
.thumbs button[aria-current="true"]{border-color:var(--accent)}
.thumbs img{display:block;width:84px;height:54px;object-fit:cover}
.caption{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:10px 2px 0;font-size:13px;color:var(--muted)}
.caption b{color:var(--ink);font-weight:600}
.specs{font-family:var(--f-mono);font-size:12px;font-variant-numeric:tabular-nums}

.panel{display:flex;flex-direction:column;gap:26px;min-width:0;padding-top:8px}
h1{font-family:var(--f-display);font-weight:400;font-size:30px;line-height:1.15;margin:0;text-wrap:balance}
.lede{color:var(--muted);margin:6px 0 0;max-width:60ch}
section.step{display:flex;flex-direction:column;gap:10px}
.step h2{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0;font-weight:600;display:flex;justify-content:space-between;gap:8px}
.step h2 span:last-child{letter-spacing:0;text-transform:none;font-weight:500;color:var(--ink)}

.filters{display:flex;gap:6px;flex-wrap:wrap}
.chip{font:inherit;font-size:13px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:6px 12px;border-radius:999px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}

.models{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.opt{font:inherit;text-align:left;color:var(--ink);background:var(--surface);border:1.5px solid var(--line);border-radius:10px;padding:12px;cursor:pointer;display:flex;flex-direction:column;gap:4px;min-width:0;transition:border-color .15s, opacity .15s}
.opt:hover{border-color:var(--muted)}
.opt[aria-checked="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset;background:var(--accent-soft)}
.opt.dim{opacity:.4}
.opt .nm{font-weight:600;font-size:15px}
.opt .sub{font-size:12.5px;color:var(--muted)}
.opt .pr{font-family:var(--f-mono);font-size:12.5px;font-variant-numeric:tabular-nums;margin-top:2px}
.opt .tag{align-self:flex-start;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);font-weight:600}
.list{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.list .opt{padding:10px 12px}

.swatches{display:flex;flex-wrap:wrap;gap:10px}
.sw{font:inherit;display:flex;flex-direction:column;align-items:center;gap:6px;background:none;border:0;color:var(--ink);cursor:pointer;width:74px;padding:0}
.sw i{display:block;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);box-shadow:0 0 0 3px var(--bg),0 0 0 4px transparent;transition:box-shadow .15s}
.sw[aria-checked="true"] i{box-shadow:0 0 0 3px var(--bg),0 0 0 5px var(--accent)}
.sw span{font-size:11.5px;line-height:1.25;text-align:center;color:var(--muted)}
.sw[aria-checked="true"] span{color:var(--ink);font-weight:600}
.sw.wood i{border-radius:10px}

.toggles{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:10px;background:var(--surface);overflow:hidden}
.tg{display:flex;align-items:center;gap:12px;padding:12px 14px;border-top:1px solid var(--line);cursor:pointer}
.tg:first-child{border-top:0}
.tg.off{opacity:.45;cursor:default}
.opt:disabled{cursor:not-allowed}
.tg input{width:18px;height:18px;accent-color:var(--accent);flex:none}
.tg .t{flex:1;min-width:0}
.tg .t b{display:block;font-weight:600;font-size:14.5px}
.tg .t small{color:var(--muted);font-size:12.5px}
.tg .p{font-family:var(--f-mono);font-size:12.5px;font-variant-numeric:tabular-nums;white-space:nowrap}

.summary{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:14px}
.summary h2{font-family:var(--f-display);font-weight:400;font-size:22px;margin:0;letter-spacing:0;text-transform:none;color:var(--ink)}
.lines{margin:0;padding:0;list-style:none;display:flex;flex-direction:column}
.lines li{display:flex;justify-content:space-between;gap:12px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:14px}
.lines li span:first-child{min-width:0}
.lines li span:first-child small{display:block;color:var(--muted);font-size:12px}
.lines li span:last-child{font-family:var(--f-mono);font-size:13px;font-variant-numeric:tabular-nums;white-space:nowrap}
.total{display:flex;justify-content:space-between;align-items:baseline;font-weight:700}
.total .v{font-family:var(--f-mono);font-size:20px;font-variant-numeric:tabular-nums}
.note{font-size:12px;color:var(--muted);margin:0}
form{display:grid;grid-template-columns:1fr 1fr;gap:10px}
form label{display:flex;flex-direction:column;gap:4px;font-size:12.5px;color:var(--muted);min-width:0}
form label.full{grid-column:1/-1}
form input,form select{font:inherit;font-size:15px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);width:100%}
.actions{grid-column:1/-1;display:flex;gap:8px;flex-wrap:wrap}
.btn{font:inherit;font-weight:600;font-size:15px;border-radius:10px;padding:12px 18px;cursor:pointer;border:1.5px solid var(--accent);background:var(--accent);color:var(--accent-ink)}
.btn.ghost{background:transparent;color:var(--accent)}
.done{grid-column:1/-1;background:var(--accent-soft);border-radius:8px;padding:10px 12px;font-size:13.5px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.bar{position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--surface);border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px))}
.bar .in{max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
.bar .lbl{font-size:12px;color:var(--muted);line-height:1.2}
.bar .amt{font-family:var(--f-mono);font-size:20px;font-weight:500;font-variant-numeric:tabular-nums;line-height:1.2}
.bar .btn{padding:10px 16px;font-size:14px}

@keyframes rise{from{transform:translateY(0);opacity:.9}to{transform:translateY(-14px);opacity:0}}
.bub{animation:rise 1.8s ease-in infinite}
@keyframes flick{0%,100%{opacity:.85}50%{opacity:.45}}
.flame{animation:flick 1.2s ease-in-out infinite}
@keyframes steam{from{transform:translateY(0);opacity:.0}30%{opacity:.35}to{transform:translateY(-24px);opacity:0}}
.stm{animation:steam 3.5s ease-out infinite}
@media (prefers-reduced-motion:reduce){.bub,.flame,.stm{animation:none}}

[hidden]{display:none!important}
img{max-width:100%}
:root{padding-top:env(safe-area-inset-top,0px)}
/* Data-driven builder additions: model picker, option photos, live-price states. */
.modelbar{display:flex;flex-direction:column;gap:10px}
.typechips{display:flex;gap:6px;flex-wrap:wrap}
.mpick{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;max-height:none}
.mcard{font:inherit;text-align:left;color:var(--ink);background:var(--surface);border:1.5px solid var(--line);border-radius:10px;padding:8px;cursor:pointer;display:flex;flex-direction:column;gap:4px;min-width:0}
.mcard:hover{border-color:var(--muted)}
.mcard[aria-checked="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset;background:var(--accent-soft)}
.mcard img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#fff;border-radius:6px}
.mcard .nm{font-weight:600;font-size:13.5px;line-height:1.25}
.mcard .sub{font-size:12px;color:var(--muted)}
.mcard .pr{font-family:var(--f-mono);font-size:12px;font-variant-numeric:tabular-nums}
.mcard .tag{font-size:10.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--accent);font-weight:700}
.more{font:inherit;font-size:13px;background:none;border:0;color:var(--accent);cursor:pointer;padding:4px 0;text-align:left}
.opt .oimg{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:6px;background:var(--bg);margin-bottom:4px}
.opt.none{border-style:dashed}
.list.wide{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.tg img{width:48px;height:48px;object-fit:cover;border-radius:6px;flex:none;background:var(--bg)}
.incl{font-size:13px;color:var(--muted);background:var(--surface);border:1px dashed var(--line);border-radius:10px;padding:10px 12px;margin:0}
.loading{padding:30px;text-align:center;color:var(--muted)}
.err{padding:12px 14px;border-radius:10px;background:#F6EBD6;color:#8A5A12;font-size:13.5px}
.noview{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:20px;color:var(--muted);font-size:14px}
.step h2 small{font-weight:500;text-transform:none;letter-spacing:0;color:var(--muted)}
.lines li span:first-child small{white-space:normal}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.prodlink{font-size:13px;color:var(--accent)}
@media (max-width:600px){.mcard img{aspect-ratio:16/9}.mpick{grid-template-columns:repeat(2,minmax(0,1fr))}.opt .oimg{aspect-ratio:16/9}}
/* chosen model: one card, with a button to change it */
.mpick.single{grid-template-columns:minmax(0,240px) 1fr;align-items:start}
.mpick.single .mcard{cursor:default}
.mpick.single .chg{align-self:center;justify-self:start}
/* option pictures open in a popup, like on the product page */
.opt .oimg,.tg img{cursor:zoom-in}
.lb{position:fixed;inset:0;z-index:100;background:rgba(10,14,13,.88);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;padding:24px;cursor:zoom-out}
.lb img{max-width:min(96vw,1100px);max-height:82vh;object-fit:contain;background:#fff;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb .lbcap{color:#fff;font-size:14px;text-align:center;max-width:80ch}
.lb .lbx{position:absolute;top:14px;right:16px;font:inherit;font-size:22px;line-height:1;background:none;border:0;color:#fff;cursor:pointer;padding:6px 10px}
.phnote{font-size:12.5px;color:var(--muted);padding:6px 12px}