/* ============================================================
   3D Room Designer — /tools/3d-room-designer
   Light, warm-white UI on the site tokens (style.css + tools.css).
   ============================================================ */
.rd-app{--rd-ink:#16161a;--rd-red:#d7141a;--rd-red-wash:rgba(215,20,26,.08);--rd-line:rgba(22,22,26,.12);--rd-soft:#faf8f4}

.rd-hero-cta{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.3rem}
.rd-main{padding:clamp(1.5rem,3vw,2.6rem) 0 clamp(2.5rem,5vw,4rem)}

/* Layout: stage + side panel; panel drops below on tablets / phones */
.rd-app{display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:1.1rem;align-items:start}
@media(max-width:1020px){.rd-app{grid-template-columns:1fr}}

/* ── Stage ── */
.rd-stage-wrap{position:relative;border-radius:22px;overflow:hidden;background:#f2efe9;border:1px solid var(--line-soft);box-shadow:var(--sh-sm);min-width:0}
.rd-stage{position:relative;height:min(74vh,700px);min-height:420px;outline:none;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}
.rd-stage:active{cursor:grabbing}
.rd-stage.is-hover-item{cursor:pointer}
.rd-stage.is-dragging{cursor:grabbing}
.rd-stage:focus-visible{box-shadow:inset 0 0 0 3px var(--rd-red)}
.rd-canvas{display:block;width:100%!important;height:100%!important}
@media(max-width:1020px){.rd-stage{height:62vh;min-height:340px;max-height:620px}}
@media(max-width:600px){.rd-stage-wrap{border-radius:16px}.rd-stage{height:58vh;min-height:300px}}

.rd-loading,.rd-fallback{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.6rem;text-align:center;padding:1.5rem;color:var(--ink-2);font-size:.95rem;z-index:2}
.rd-loading{flex-direction:row;font-weight:600}
.rd-loading[hidden],.rd-fallback[hidden]{display:none}
.rd-fallback{background:#f6f3ee}
.rd-fallback i{font-size:1.6rem;color:var(--rd-red)}
.rd-fallback p{max-width:420px;color:var(--muted);margin:0}
.rd-fallback a{color:var(--rd-red);text-decoration:underline}
.rd-spin{width:18px;height:18px;border-radius:50%;border:2.5px solid rgba(22,22,26,.15);border-top-color:var(--rd-red);animation:rd-spin 0.8s linear infinite}
@keyframes rd-spin{to{transform:rotate(360deg)}}

/* Toolbar over the canvas */
.rd-toolbar{position:absolute;top:.75rem;left:.75rem;right:.75rem;z-index:3;display:flex;flex-wrap:wrap;gap:.45rem;pointer-events:none}
.rd-toolbar>*{pointer-events:auto}
.rd-seg{display:inline-flex;background:rgba(255,255,255,.92);border:1px solid var(--rd-line);border-radius:999px;padding:3px;box-shadow:0 4px 14px rgba(22,22,26,.08)}
.rd-seg .rd-tbtn{border:0;box-shadow:none;background:transparent}
.rd-tbtn{display:inline-flex;align-items:center;gap:.4rem;min-height:38px;padding:.45rem .85rem;border-radius:999px;border:1px solid var(--rd-line);background:rgba(255,255,255,.92);color:var(--rd-ink);font:600 .8rem/1 var(--ff-sans);cursor:pointer;box-shadow:0 4px 14px rgba(22,22,26,.08);transition:background .2s,color .2s,border-color .2s}
.rd-tbtn:hover{border-color:var(--rd-ink)}
.rd-tbtn.is-on,.rd-seg .rd-tbtn.is-on{background:var(--rd-ink);color:#fff}
.rd-tbtn:focus-visible,.rd-btn:focus-visible,.rd-sw:focus-visible,.rd-libitem:focus-visible,.rd-tabs button:focus-visible,.rd-inroom button:focus-visible{outline:3px solid var(--rd-red);outline-offset:2px}
.rd-tbtn.rd-danger{color:var(--rd-red)}
.rd-tbtn.rd-danger:hover{background:var(--rd-red);color:#fff;border-color:var(--rd-red)}
@media(max-width:600px){.rd-toolbar{top:.5rem;left:.5rem;right:.5rem;gap:.35rem}.rd-tbtn{padding:.45rem .65rem;font-size:.76rem}[data-rd-act="reset-cam"] span,[data-rd-act="snapshot"] span{display:none}}

.rd-hint{position:absolute;left:50%;bottom:.9rem;transform:translateX(-50%);z-index:3;display:flex;align-items:center;gap:.5rem;padding:.5rem .95rem;border-radius:999px;background:rgba(22,22,26,.78);color:#fff;font-size:.78rem;white-space:nowrap;pointer-events:none;transition:opacity .4s}
.rd-hint.is-gone{opacity:0}
@media(max-width:600px){.rd-hint{font-size:.7rem;white-space:normal;text-align:center;width:max-content;max-width:calc(100% - 1.5rem)}}

/* Selected-item quick bar */
.rd-selbar{position:absolute;left:.75rem;right:.75rem;bottom:.75rem;z-index:4;display:flex;align-items:center;flex-wrap:wrap;gap:.4rem;padding:.45rem .5rem .45rem .9rem;background:rgba(255,255,255,.96);border:1px solid var(--rd-line);border-radius:16px;box-shadow:0 10px 30px rgba(22,22,26,.12)}
.rd-selbar[hidden]{display:none}
.rd-selbar b{flex:1 1 auto;min-width:0;font-size:.86rem;color:var(--rd-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rd-selbar b::before{content:'';display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--rd-red);margin-right:.45rem;vertical-align:1px}
.rd-selbar .rd-tbtn{box-shadow:none;min-height:36px}
.rd-selbar .rd-x{padding:.45rem .6rem}
@media(max-width:600px){.rd-selbar{left:.5rem;right:.5rem;bottom:.5rem;padding:.4rem}.rd-selbar b{flex-basis:100%;padding-left:.3rem}.rd-selbar .rd-tbtn{flex:1 1 0;justify-content:center;padding:.45rem .3rem}.rd-selbar .rd-tbtn span{display:none}}

.rd-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;margin:-1px}

/* ── Panel ── */
.rd-panel{background:#fff;border:1px solid var(--line-soft);border-radius:22px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;min-width:0;max-height:min(74vh,700px);overflow:hidden}
@media(max-width:1020px){.rd-panel{max-height:none}}
.rd-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:6px;background:var(--rd-soft);border-bottom:1px solid var(--line-soft)}
.rd-tabs button{display:flex;align-items:center;justify-content:center;gap:.4rem;min-height:42px;border:0;border-radius:12px;background:transparent;color:var(--muted);font:600 .84rem/1 var(--ff-sans);cursor:pointer}
.rd-tabs button:hover{color:var(--rd-ink)}
.rd-tabs button.is-on{background:#fff;color:var(--rd-ink);box-shadow:0 2px 8px rgba(22,22,26,.08)}
.rd-tabs button.is-on i{color:var(--rd-red)}
.rd-pane{padding:1rem 1.1rem;overflow-y:auto;overscroll-behavior:contain;flex:1 1 auto;min-height:0}
.rd-pane[hidden]{display:none}
.rd-group{padding:.2rem 0 1rem;margin-bottom:1rem;border-bottom:1px solid var(--line-faint)}
.rd-group:last-child{border-bottom:0;margin-bottom:0}
.rd-label{display:block;font-size:.78rem;font-weight:700;color:var(--ink-2);margin:0 0 .5rem;letter-spacing:.01em}
.rd-label small{font-weight:500;color:var(--muted)}
.rd-note{font-size:.76rem;color:var(--muted);margin:.5rem 0 0;min-height:1em}
.rd-panel-cta{padding:.85rem 1.1rem;border-top:1px solid var(--line-soft);background:var(--rd-soft)}
.rd-panel-cta .btn{border-radius:12px}

/* Presets */
.rd-presets{display:grid;grid-template-columns:repeat(2,1fr);gap:.4rem}
.rd-preset{position:relative;cursor:pointer}
.rd-preset input,.rd-floor input{position:absolute;opacity:0;pointer-events:none}
.rd-preset span,.rd-floor span{display:flex;align-items:center;gap:.5rem;min-height:42px;padding:.5rem .7rem;border:1.5px solid var(--line);border-radius:12px;font-size:.83rem;font-weight:600;color:var(--ink-2);background:#fff;transition:all .2s}
.rd-preset span i{color:var(--muted);width:1.1em;text-align:center}
.rd-preset input:checked+span,.rd-floor input:checked+span{border-color:var(--rd-ink);background:var(--rd-ink);color:#fff}
.rd-preset input:checked+span i{color:#fff}
.rd-preset input:focus-visible+span,.rd-floor input:focus-visible+span{box-shadow:0 0 0 3px var(--rd-red-wash),0 0 0 1px var(--rd-red)}
@media(max-width:1020px) and (min-width:601px){.rd-presets{grid-template-columns:repeat(4,1fr)}}

/* Sliders */
.rd-range{margin-bottom:.8rem}
.rd-range label{display:flex;justify-content:space-between;font-size:.8rem;font-weight:600;color:var(--ink-2);margin-bottom:.3rem}
.rd-range output{font-family:var(--ff-mono);font-size:.78rem;color:var(--rd-red);font-weight:600}
.rd-range input[type=range]{width:100%;height:28px;accent-color:var(--rd-red);cursor:pointer;margin:0}
.rd-area{font-size:.8rem;color:var(--muted);margin:0}

/* Buttons */
.rd-btnrow{display:flex;flex-wrap:wrap;gap:.4rem}
.rd-btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;min-height:38px;padding:.45rem .8rem;border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--rd-ink);font:600 .8rem/1.1 var(--ff-sans);cursor:pointer;transition:all .2s}
.rd-btn:hover:not(:disabled){border-color:var(--rd-ink)}
.rd-btn:disabled{opacity:.45;cursor:not-allowed}
.rd-btn.rd-danger{color:var(--rd-red)}
.rd-btn.rd-danger:hover{background:var(--rd-red);border-color:var(--rd-red);color:#fff}
.rd-btn-quiet{color:var(--muted)}

/* Swatches */
.rd-swatches{display:grid;grid-template-columns:repeat(auto-fill,minmax(34px,1fr));gap:.4rem}
.rd-swatches-sm{grid-template-columns:repeat(auto-fill,minmax(30px,1fr))}
.rd-sw{position:relative;aspect-ratio:1;min-height:30px;border-radius:50%;border:2px solid #fff;background:var(--sw,#fff);box-shadow:0 0 0 1px var(--rd-line);cursor:pointer;padding:0;display:grid;place-items:center;transition:transform .15s}
.rd-sw:hover{transform:scale(1.08)}
.rd-sw[aria-checked="true"],.rd-sw-custom.is-on{box-shadow:0 0 0 2px var(--rd-ink)}
.rd-sw[aria-checked="true"]::after{content:'';width:8px;height:8px;border-radius:50%;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.25)}
.rd-sw-custom{background:conic-gradient(#d7141a,#d6a13a,#a7b597,#2e6e72,#b8cdd9,#d6a8a1,#d7141a);color:#fff;font-size:.72rem;overflow:hidden}
.rd-sw-custom i{text-shadow:0 1px 2px rgba(0,0,0,.4);pointer-events:none}
.rd-sw-custom input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;border:0;padding:0}
.rd-sw-custom:focus-within{outline:3px solid var(--rd-red);outline-offset:2px}
.rd-swatches.is-muted .rd-sw:not(.rd-sw-custom){opacity:.55}
.rd-check{margin:.1rem 0 .7rem;font-size:.84rem}

/* Floors */
.rd-floors{display:grid;grid-template-columns:repeat(2,1fr);gap:.4rem}
.rd-floor{position:relative;cursor:pointer}
.rd-floor span{font-size:.8rem}
.rd-floor-sw{flex-shrink:0;width:22px;height:22px;border-radius:6px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12)}
.rd-fl-tile{background:#e6dfd2;background-image:linear-gradient(#c9bfae 2px,transparent 2px),linear-gradient(90deg,#c9bfae 2px,transparent 2px);background-size:11px 11px}
.rd-fl-laminate{background:repeating-linear-gradient(180deg,#b88a5c 0 6px,#a77a4d 6px 7px)}
.rd-fl-marble{background:linear-gradient(125deg,#f1ede7 40%,#b7b0a8 42%,#f1ede7 45%,#ece7e0 70%,#c9c1b8 71%,#f1ede7 73%)}
.rd-fl-herringbone{background:repeating-linear-gradient(45deg,#a87b4f 0 4px,#94693f 4px 5px),#a87b4f}
.rd-fl-carpet{background:#80786e radial-gradient(rgba(255,255,255,.18) 1px,transparent 1px) 0 0/3px 3px}
.rd-fl-epoxy{background:radial-gradient(circle at 30% 30%,#a3a6ab,#8e9196 60%,#7d8085)}

/* Selected-item editor */
.rd-edit{background:var(--rd-red-wash);border:1px solid rgba(215,20,26,.2);border-radius:16px;padding:.85rem .9rem;margin-bottom:1rem}
.rd-edit[hidden]{display:none}
.rd-edit-head{display:flex;justify-content:space-between;align-items:baseline;gap:.5rem;margin-bottom:.6rem}
.rd-edit-head b{font-size:.95rem;color:var(--rd-ink)}
.rd-edit-head span{font-family:var(--ff-mono);font-size:.74rem;color:var(--muted)}
.rd-edit .rd-label{margin-top:.8rem}
.rd-nudge{margin-top:.2rem}
.rd-nudge-pad{display:grid;grid-template-columns:repeat(3,40px);grid-template-areas:". up ." "lt dn rt";gap:.3rem}
.rd-nudge-pad .rd-btn{padding:0;min-height:36px}
.rd-n-up{grid-area:up}.rd-n-lt{grid-area:lt}.rd-n-rt{grid-area:rt}.rd-n-dn{grid-area:dn}
.rd-finishes .tl-chip span{padding:.45rem .8rem;font-size:.8rem}
.rd-finishes .tl-chip input:checked+span{background:var(--rd-ink);border-color:var(--rd-ink)}

/* Library */
.rd-lib-head{display:flex;justify-content:space-between;align-items:baseline;gap:.5rem;flex-wrap:wrap}
.rd-allitems{display:flex;align-items:center;gap:.35rem;font-size:.74rem;color:var(--muted);cursor:pointer;margin-bottom:.5rem}
.rd-allitems input{accent-color:var(--rd-red)}
.rd-lib{display:grid;grid-template-columns:repeat(2,1fr);gap:.4rem}
@media(max-width:1020px) and (min-width:601px){.rd-lib{grid-template-columns:repeat(4,1fr)}}
.rd-libitem{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:.55rem;align-items:center;text-align:left;padding:.55rem .65rem;border:1.5px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;color:var(--rd-ink);font-family:var(--ff-sans);transition:all .2s}
.rd-libitem:hover{border-color:var(--rd-red);background:var(--rd-red-wash)}
.rd-libitem:active{transform:scale(.98)}
.rd-libitem i{grid-row:span 2;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--rd-soft);color:var(--rd-red);font-size:.85rem}
.rd-libitem b{font-size:.78rem;font-weight:600;line-height:1.2}
.rd-libitem small{font-family:var(--ff-mono);font-size:.68rem;color:var(--muted)}

/* In-room list */
.rd-inroom{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.3rem}
.rd-inroom li{display:flex;gap:.3rem}
.rd-inroom-sel{flex:1;min-width:0;display:flex;align-items:center;gap:.5rem;min-height:36px;padding:.35rem .65rem;border:1px solid var(--line-soft);border-radius:10px;background:#fff;font:500 .8rem/1.2 var(--ff-sans);color:var(--ink-2);text-align:left;cursor:pointer}
.rd-inroom-sel:hover{border-color:var(--line)}
.rd-inroom-sel.is-on{border-color:var(--rd-red);background:var(--rd-red-wash);color:var(--rd-ink);font-weight:600}
.rd-dot{flex-shrink:0;width:14px;height:14px;border-radius:50%;background:var(--sw,#ccc);box-shadow:inset 0 0 0 1px rgba(0,0,0,.15)}
.rd-inroom-del{flex-shrink:0;width:36px;border:1px solid var(--line-soft);border-radius:10px;background:#fff;color:var(--muted);cursor:pointer}
.rd-inroom-del:hover{color:#fff;background:var(--rd-red);border-color:var(--rd-red)}
.rd-empty{font-size:.8rem;color:var(--muted);padding:.3rem 0}

/* ── How it works ── */
.rd-how .section-head{margin-bottom:clamp(1.5rem,3vw,2.4rem)}
.rd-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
@media(max-width:900px){.rd-steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.rd-steps{grid-template-columns:1fr}}
.rd-step{position:relative;background:#fff;border:1px solid var(--line-soft);border-radius:18px;padding:1.3rem 1.2rem 1.2rem;box-shadow:var(--sh-xs)}
.rd-step-n{position:absolute;top:1rem;right:1.1rem;font-family:var(--ff-display);font-size:2rem;line-height:1;color:rgba(22,22,26,.12)}
.rd-step>i{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--rd-red-wash,rgba(215,20,26,.08));color:#d7141a;margin-bottom:.8rem}
.rd-step b{display:block;font-size:1rem;color:var(--ink);margin-bottom:.3rem}
.rd-step p{font-size:.88rem;color:var(--muted);margin:0;line-height:1.6}

/* ── Lead section ── */
.rd-lead-sec{scroll-margin-top:calc(var(--nav-h) + 1rem)}
.rd-lead-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(1.5rem,4vw,3.5rem);align-items:start}
@media(max-width:900px){.rd-lead-grid{grid-template-columns:1fr}}
.rd-lead-copy h2{margin:.7rem 0 .8rem}
.rd-brands{display:flex;flex-direction:column;gap:.7rem;margin-top:1.4rem}
.rd-brand{display:flex;align-items:center;gap:.9rem;padding:1rem 1.1rem;background:#fff;border:1px solid var(--line-soft);border-radius:16px;color:var(--ink-2);transition:border-color .2s,transform .2s}
.rd-brand:hover{border-color:#d7141a;transform:translateY(-2px)}
.rd-brand>i:first-child{flex-shrink:0;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(215,20,26,.08);color:#d7141a}
.rd-brand>i:last-child{margin-left:auto;color:#d7141a;font-size:.8rem}
.rd-brand span{display:flex;flex-direction:column;gap:.15rem;min-width:0}
.rd-brand b{color:var(--ink);font-size:.98rem}
.rd-brand small{font-size:.8rem;color:var(--muted);line-height:1.45}
.rd-leadform .lv-field label small{font-weight:500;color:var(--muted)}
.rd-summary{margin:.2rem 0 1rem;border:1px dashed var(--line);border-radius:12px;padding:.6rem .8rem;background:#faf8f4}
.rd-summary summary{cursor:pointer;font-size:.8rem;font-weight:600;color:var(--ink-2)}
.rd-summary pre{margin:.6rem 0 0;white-space:pre-wrap;word-break:break-word;font-family:var(--ff-mono);font-size:.74rem;line-height:1.55;color:var(--ink-2);max-height:220px;overflow:auto}

@media(prefers-reduced-motion:reduce){
  .rd-spin{animation-duration:2.4s}
  .rd-sw,.rd-libitem,.rd-brand,.rd-hint{transition:none}
  .rd-sw:hover,.rd-brand:hover{transform:none}
}