/* Layout: the Riverbend 3D site header, then one screen. A neutral photo-studio stage holds the model; a side panel holds set, schemes, colours and the order summary.
   Colours and type follow riverbend3d.ca. The stage stays neutral grey so filament colours read true. */
:root{
  --teal-300:#2ccbe0; --teal-500:#10b3cc; --teal-700:#0a7fa3; --navy:#2e2c5e; --mist:#eef9fb;
  --panel:#f6fbfc; --panel-raised:#FFFFFF; --ink:#2e2c5e; --ink-soft:#4a5361;
  --line:#dbe7ea; --accent:#0a7fa3; --accent-ink:#FFFFFF; --ring:#2e2c5e;
  --grad:linear-gradient(100deg,#10b3cc,#0a7fa3);
  --stage-hi:#C2C0BA; --stage-lo:#8F8D88; --stage-ink:#23262A; --stage-ink-soft:rgba(35,38,42,.8);
  --chip:rgba(35,38,42,.84); --chip-ink:#EDECE7; --swatch-edge:rgba(0,0,0,.3);
  --display:"Nunito","Segoe UI",system-ui,sans-serif;
  --ui:"Inter","Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{height:100%}
body{height:100%;margin:0;display:flex;flex-direction:column;background:var(--panel);color:var(--ink-soft);font-family:var(--ui);font-size:15px;line-height:1.45;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- site header (same as the rest of riverbend3d.ca) ---------- */
.skip-link{position:absolute;left:16px;top:-60px;z-index:100;padding:10px 16px;background:var(--navy);color:#fff;border-radius:6px}
.skip-link:focus{top:12px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.site-header{position:relative;z-index:50;flex:none;background:#fff;border-bottom:1px solid var(--line)}
.site-header .wrap{width:100%;max-width:calc(1180px + clamp(16px,4vw,32px) * 2);margin-inline:auto;padding-inline:clamp(16px,4vw,32px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.brand{display:block;flex:none}
.brand img{display:block;height:52px;width:auto}
.site-nav{display:flex;align-items:center;gap:28px}
.site-nav ul{display:flex;gap:28px;margin:0;padding:0;list-style:none}
.site-nav ul a{display:block;white-space:nowrap;padding:8px 0;color:var(--navy);font-family:var(--display);font-size:16px;font-weight:700;line-height:1.65;text-decoration:none;border-bottom:2px solid transparent}
.site-nav ul a:hover,.site-nav ul a[aria-current="page"]{color:var(--teal-700);border-bottom-color:var(--teal-500)}
.header-phone{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;font-size:16px;line-height:1.65;border-radius:999px;background:var(--mist);color:var(--navy);font-family:var(--display);font-weight:800;text-decoration:none;white-space:nowrap}
.header-phone svg{width:18px;height:18px;fill:var(--teal-700)}
.header-phone:hover{background:#dff3f7}
.nav-toggle{display:none;width:48px;height:48px;padding:0;border:1px solid var(--line);border-radius:8px;background:#fff}
.nav-toggle-bars,.nav-toggle-bars::before,.nav-toggle-bars::after{display:block;width:22px;height:2px;margin-inline:auto;background:var(--navy);border-radius:2px;content:""}
.nav-toggle-bars{position:relative}
.nav-toggle-bars::before{position:absolute;top:-7px;left:0}
.nav-toggle-bars::after{position:absolute;top:7px;left:0}
@media (max-width:1080px){
  .nav-toggle{display:block}
  .site-nav{position:absolute;left:0;right:0;top:100%;display:none;flex-direction:column;align-items:stretch;gap:16px;padding:12px clamp(16px,4vw,32px) 24px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 20px 30px -20px rgba(46,44,94,.35)}
  .site-nav.is-open{display:flex}
  .site-nav ul{flex-direction:column;gap:0}
  .site-nav ul a{padding:13px 0;border-bottom:1px solid var(--line);font-size:17px}
  .header-phone{justify-content:center;min-height:48px}
}

.app{flex:1;min-height:0;display:grid;grid-template-columns:minmax(0,1fr) 400px}

/* ---------- stage ---------- */
.stage{position:relative;min-height:0;min-width:0;overflow:hidden;color:var(--stage-ink);
  background:radial-gradient(120% 90% at 50% 38%,var(--stage-hi) 0%,var(--stage-lo) 100%)}
.stage canvas{position:absolute;left:50%;top:50%;max-width:none;display:block;touch-action:none;cursor:grab;transform:translate(-50%,-50%);transform-origin:center}
.stage canvas:focus-visible{outline-offset:-40px}
.stage canvas.dragging{cursor:grabbing}
.stage-head{position:absolute;left:0;right:0;top:0;padding:20px 24px;pointer-events:none}
.stage-head h1{font-family:var(--display);font-weight:800;letter-spacing:-.01em;font-size:clamp(26px,3vw,42px);line-height:.98;margin:0;text-wrap:balance}
.stage-head p{margin:6px 0 0;font-size:13px;color:var(--stage-ink-soft);max-width:46ch}
.stage-foot{position:absolute;left:0;right:0;bottom:0;padding:16px 24px;display:flex;justify-content:space-between;align-items:center;gap:12px;pointer-events:none;font-size:13px}
.stage-foot > *{pointer-events:auto}
.hint{color:var(--stage-ink-soft);margin:0}
.view-btns{display:flex;gap:6px;flex:none}
.view-btns button,.stage-msg button{border:0;background:var(--chip);color:var(--chip-ink);border-radius:6px;padding:6px 11px;font-size:13px;font-weight:500}
.view-btns button[aria-pressed="true"]{background:var(--chip-ink);color:var(--stage-ink)}
.stage-msg{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:32px;font-size:15px;pointer-events:none}
.stage-msg > div{background:var(--chip);color:var(--chip-ink);padding:12px 16px;border-radius:8px;max-width:36ch;pointer-events:auto;display:grid;gap:10px;justify-items:center}
.stage-msg p{margin:0}
.stage-msg button{background:var(--chip-ink);color:var(--stage-ink);font-weight:600}

/* ---------- panel ---------- */
.panel{min-height:0;min-width:0;overflow-y:auto;border-left:1px solid var(--line);padding:22px 22px 28px;display:flex;flex-direction:column;gap:26px}
.panel h2{font-family:var(--display);font-weight:800;font-size:21px;line-height:1.15;margin:0 0 4px;color:var(--navy)}
.panel .sub{margin:0 0 12px;color:var(--ink-soft);font-size:13.5px}

.sets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.set{display:flex;flex-direction:column;align-items:stretch;gap:0;padding:0;overflow:hidden;background:var(--panel-raised);border:1px solid var(--line);border-radius:8px;font-size:13px;font-weight:500;text-align:center}
.set img{display:block;width:100%;aspect-ratio:1/1;object-fit:cover;background:var(--stage-lo)}
.set span{padding:6px 4px 7px;line-height:1.2}
.set:hover{border-color:var(--ink-soft)}
.set[aria-pressed="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);color:var(--teal-700);font-weight:600}

.presets{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.preset{display:flex;flex-direction:column;gap:7px;align-items:flex-start;text-align:left;background:var(--panel-raised);border:1px solid var(--line);border-radius:8px;padding:9px 10px 8px;font-size:13.5px;font-weight:500;min-width:0}
.preset:hover{border-color:var(--ink-soft)}
.preset .strip{display:flex;width:100%;height:16px;border-radius:3px;overflow:hidden;box-shadow:inset 0 0 0 1px var(--swatch-edge)}
.preset .strip i{flex:1}
.preset .strip i:first-child{flex:2.4}

.groups{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.groups > li{border-bottom:1px solid var(--line)}
.group-row{width:100%;display:grid;grid-template-columns:28px minmax(0,1fr);gap:2px 12px;align-items:center;background:none;border:0;padding:10px 4px;text-align:left}
.group-row .pot{grid-row:1 / span 2}
.group-row .name{font-weight:600;color:var(--ink)}
.group-row .name small{font-weight:400;color:var(--ink-soft);font-size:13px}
.group-row .cname{color:var(--ink-soft);font-size:13px;font-variant-numeric:tabular-nums}
.pot{width:28px;height:28px;border-radius:50%;flex:none;box-shadow:inset 0 0 0 1px var(--swatch-edge),inset 0 2px 3px rgba(255,255,255,.22)}
.chooser{padding:2px 4px 14px}
.swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(34px,1fr));gap:8px}
.sw{aspect-ratio:1;border-radius:50%;border:0;padding:0;box-shadow:inset 0 0 0 1px var(--swatch-edge),inset 0 2px 3px rgba(255,255,255,.22)}
.sw[aria-pressed="true"]{outline:2px solid var(--ring);outline-offset:2px}
.readout{margin:12px 0 0;font-size:13.5px;min-height:1.45em;font-variant-numeric:tabular-nums}
.readout b{font-weight:600}

.scheme{background:var(--panel-raised);border:1px solid var(--line);border-radius:8px;padding:12px 14px}
.scheme ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.scheme li{display:grid;grid-template-columns:18px minmax(0,1fr);gap:10px;align-items:start;font-size:13.5px}
.scheme li .pot{width:18px;height:18px;margin-top:1px}
.scheme li b{font-weight:600;font-variant-numeric:tabular-nums}
.scheme li span{color:var(--ink-soft);display:block}
.actions{display:flex;gap:8px;margin-top:12px;align-items:center;flex-wrap:wrap}
.btn{display:inline-block;border:1px solid var(--line);background:var(--panel-raised);color:var(--ink);border-radius:6px;padding:8px 14px;font-family:var(--display);font-weight:800;font-size:14px;text-decoration:none}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--grad);border-color:var(--accent);color:var(--accent-ink)}
.status{font-size:13px;color:var(--ink-soft);margin:10px 0 0;min-height:1.45em}
.order{font-size:13.5px;color:var(--ink-soft);margin:10px 0 0}
.order b{color:var(--ink);font-weight:600;user-select:all;overflow-wrap:anywhere}
textarea.copybox{width:100%;margin-top:10px;font:13px/1.4 var(--ui);color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:8px;resize:vertical}
.note{font-size:12.5px;color:var(--ink-soft);margin:0}

@media (max-width:900px){
  .app{grid-template-columns:minmax(0,1fr);grid-template-rows:44% minmax(0,1fr)}
  .panel{border-left:0;border-top:1px solid var(--line);padding:18px 16px 24px;gap:22px}
  .stage-head{padding:12px 16px}
  .stage-head h1{font-size:22px}
  .stage-head p{display:none}
  .stage-foot{padding:10px 16px;justify-content:flex-end}
  .hint{display:none}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}