/* Studio shell: calm surfaces, a dedicated viewport, and focused setup steps. */
:root{--ink:#292e28;--muted:#71766e;--muted-2:#858a81;--field-border:#dfe2d9;--divider:#e5e7df;--r-panel:16px;--r-field:10px;--accent:#42664e}
body{background:#f7f8f3;height:100dvh}
.studio-header{height:72px;flex:none;display:flex;align-items:center;gap:24px;padding:0 30px;border-bottom:1px solid var(--divider);background:#fff}
.studio-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-size:20px;font-weight:750;letter-spacing:-.8px}.studio-logo img{width:27px;height:27px}.studio-logo span{color:#ccd0c6;margin:0 6px;font-weight:400}.studio-logo small{font-size:13px;font-weight:500;letter-spacing:0}.studio-caption{margin:auto;font-size:12px;color:var(--muted)}.studio-status{font-size:11px;color:var(--accent);border:1px solid #dce5d8;background:#f5f8f1;padding:7px 12px;border-radius:30px}
main{margin:18px;display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:18px}
#view{position:relative;inset:auto;border:1px solid #e1e5da;border-radius:22px;background:radial-gradient(ellipse at 48% 40%,#fff 5%,#f1f3ea 78%);min-width:0}
aside{position:relative;inset:auto;width:100%;border-radius:20px;background:#fff;border:1px solid #e0e4da;box-shadow:0 4px 20px #28332305;backdrop-filter:none}
.panel-intro{padding:24px 22px 18px}.eyebrow{display:block;font-size:10px;letter-spacing:2px;font-weight:700;color:#819077}.panel-intro h2{font-size:23px;letter-spacing:-.8px;margin:8px 0}.panel-intro p{font-size:12px;margin:0;color:var(--muted)}
.pscroll{padding:20px 20px 8px;scroll-behavior:smooth}.pscroll>.brand{display:none}.studio-steps{display:flex;margin:0 20px;border-bottom:1px solid var(--divider);gap:8px}.studio-steps button{flex:1;border:0;border-bottom:2px solid transparent;background:none;padding:12px 0;color:var(--muted);font:500 12px var(--sans);cursor:pointer}.studio-steps button span{font:10px var(--mono);margin-right:5px;opacity:.65}.studio-steps button[aria-current]{color:var(--accent);border-bottom-color:var(--accent)}.studio-steps button:hover{background:#f6f8f2}
.grp{padding:0 0 22px;margin-bottom:20px;border:0;border-bottom:1px solid var(--divider);border-radius:0;background:none;box-shadow:none}.grp>.lbl:first-child{font-size:14px;text-transform:none;letter-spacing:-.2px;margin:0 0 14px}.lbl{font-size:10px;letter-spacing:.05em}.hint{font-size:11px;line-height:1.65;color:var(--muted)}.drop{padding:24px 12px;background:#f7f9f3;border:1.5px dashed #bccab2;border-radius:14px}.drop:hover,.drop.hot{background:#eef4e7;border-color:var(--accent)}.drop .fn{font:11px var(--sans);margin-top:9px}.drop svg{color:var(--accent)}
.seg{background:#f2f4ed;border:1px solid #e4e7dd;box-shadow:none;gap:3px}.seg .chip{padding:10px 5px}.seg .chip.active{background:#fff;color:var(--accent);border-color:#d9e0d2;box-shadow:0 2px 4px #2639220a}.seg .chip small{font-size:10px}.seg .chip:hover:not(.active):not(:disabled){background:#e8eddf}#size{display:grid;grid-template-columns:repeat(4,1fr)}select,input[type=text],textarea{background:#fff;box-shadow:none;border-color:var(--field-border)}select:hover,input[type=text]:hover{border-color:#a6b69c}input:focus,select:focus,textarea:focus{border-color:var(--accent)}.toggle input:checked+.tk{background:var(--accent)}
.pfoot{padding:12px 20px 18px;background:#fff}.build-summary{font-size:11px;color:var(--muted);text-align:center;margin:0 0 10px}.gen{border-radius:12px;background:var(--accent);box-shadow:0 4px 10px #42664e18;border:1px solid var(--accent);font-size:13px;min-height:46px}.gen:hover:not(:disabled){background:#34563f;box-shadow:0 6px 14px #42664e28}.gen:disabled{opacity:.6}.studio-inactive{display:none!important}details.adv summary{padding:14px 0}details.adv .adv-body{padding:0}.stats{box-shadow:none;background:#f6f8f1;border:1px solid var(--divider)}
.overlay{padding:35px;background:transparent;backdrop-filter:none;gap:12px}.terrain-art{width:270px;margin-bottom:8px}.terrain-art svg{width:100%;filter:drop-shadow(0 24px 22px #54603c18)}#ovText h1{font-size:clamp(27px,3.1vw,44px);line-height:1.16;letter-spacing:-1.8px;font-weight:550;color:var(--ink);margin:16px 0}#ovText p{font-size:13px;line-height:1.8;color:var(--muted);margin:0}.start-design{background:#fff;border:1px solid #d9e0d0;border-radius:10px;padding:12px 18px;color:var(--accent);font:600 12px var(--sans);cursor:pointer;margin-top:10px;transition:transform .2s,box-shadow .2s}.start-design span{margin-left:20px}.start-design:hover{transform:translateY(-2px);box-shadow:0 6px 16px #42664e15}.viewport-label{position:absolute;top:24px;left:24px;display:flex;align-items:center;gap:8px;font:10px var(--mono);letter-spacing:1px;color:#65745c;pointer-events:none}.live-dot{width:6px;height:6px;border-radius:50%;background:#7f9c6b}.viewport-label-sub{color:#9aa28f;letter-spacing:0}.viewer-tools{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:6px;padding:7px;background:#ffffffeb;border:1px solid var(--divider);border-radius:12px;white-space:nowrap}.viewer-tools>span{font-size:10px;color:var(--muted);padding:0 10px}.viewer-tools button{font:500 11px var(--sans);border:1px solid var(--divider);border-radius:7px;background:#fff;padding:8px 10px;cursor:pointer;color:var(--ink)}.viewer-tools button:hover,.viewer-tools button[aria-pressed=true]{background:#eaf0e3;color:var(--accent)}#isoBar{top:55px!important;left:20px!important;max-width:calc(100% - 40px)!important;box-shadow:none}.vtag{bottom:76px;left:20px;box-shadow:none;font-size:10px}
@media(max-width:1050px){main{grid-template-columns:minmax(0,1fr) 350px;gap:12px;margin:12px}.studio-caption{display:none}.studio-status{margin-left:auto}.viewer-tools>span{display:none}.terrain-art{width:210px}.viewport-label-sub{display:none}}
@media(max-width:700px){body{height:auto;min-height:100dvh;overflow:auto}.studio-header{height:60px;padding:0 18px}.studio-logo{font-size:18px}.studio-logo small{font-size:11px}.studio-status{display:none}main{display:flex;flex-direction:column;margin:10px;overflow:visible;flex:none}#view{height:440px;flex:none}aside{overflow:visible;flex:none}.pscroll{overflow:visible}.panel-intro{padding-top:20px}.pfoot{position:sticky;bottom:0;z-index:10;border-radius:0 0 20px 20px;box-shadow:0 -6px 20px #28332308}.terrain-art{width:170px;margin:0}.overlay{padding:42px 15px 20px;gap:8px}#ovText h1{font-size:30px;letter-spacing:-1px;margin:12px 0}#ovText p{font-size:11px}.viewport-label{top:18px;left:18px}.eyebrow{font-size:9px}.start-design{padding:10px 16px;margin-top:6px}#isoBar{display:flex!important}#isoBar:empty{display:none!important}}
.terrain-art .spinner{margin:0 auto}
/* The overlay is clear so the hero sits on the bare canvas - but a rebuild runs
   over the last model, which then shows at full strength under the spinner and
   the progress bar. studio.js marks that model stale for the rebuild: frost it
   back, and hide the labels that describe it. */
#view.stale-model .overlay{background:rgba(247,248,243,.8);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
#view.stale-model :is(#vtag,#isoBar){display:none!important}
.guided-actions{display:flex;align-items:center;gap:10px}.guided-actions>.gen{flex:1;width:auto;min-width:0;margin:0;font-size:12px}
.back-option{border:0;background:transparent;color:var(--muted);font:600 11px var(--sans);padding:12px 4px;cursor:pointer;min-height:44px}.back-option:hover{color:var(--accent)}
.studio-steps button:disabled{opacity:.4;cursor:default}.studio-steps button:disabled:hover{background:none}.studio-steps .step-complete span{color:var(--accent);opacity:1}
.source-caption{display:block;margin:0 0 10px;font-size:12px;font-weight:650}.model-review{padding:16px;background:#f5f7f1;border:1px solid #e0e7d9;border-radius:14px;margin-bottom:20px}
.review-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.review-edit{border:0;background:none;font:600 10px var(--sans);color:var(--accent);padding:6px;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.model-review dl{margin:10px 0 0}.model-review dl>div{display:flex;justify-content:space-between;align-items:baseline;gap:14px;padding:8px 0;border-bottom:1px solid #e4e9de;font-size:11px;line-height:1.6}.model-review dl>div:last-child{border:0;padding-bottom:0}.model-review dt{color:var(--muted);flex-shrink:0}.model-review dd{margin:0;text-align:right;font-weight:600;overflow-wrap:anywhere}
.guided-actions~.action-help{min-height:28px}.build-summary{padding-bottom:7px}
/* Small, optional guidance keeps the three-tab workspace flexible. */
:root{--sans:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input,select,textarea{font-family:var(--sans)}
.panel-intro h2{font-size:23px;font-weight:700;letter-spacing:-.85px;line-height:1.3}
.panel-intro p{line-height:1.65;min-height:40px;font-size:12px}
#ovText h1{font-weight:600;letter-spacing:-1.7px}
.hint{font-size:11.5px}
.studio-steps button{font-weight:650;min-height:44px;transition:background .15s,color .15s}
.studio-steps button[aria-current]{background:linear-gradient(0deg,#f1f5ec,transparent)}
.studio-disclosure{border-top:1px solid var(--divider);margin:12px 0 0;padding:0}
.studio-disclosure>summary{display:flex;align-items:center;justify-content:space-between;list-style:none;font-size:11.5px;font-weight:600;color:var(--muted);cursor:pointer;padding:13px 0;min-height:44px;gap:10px}
.studio-disclosure>summary::-webkit-details-marker{display:none}
.studio-disclosure>summary::after{content:'+';font-size:17px;font-weight:400;color:var(--accent)}
.studio-disclosure[open]>summary::after{content:'−'}
.studio-disclosure>summary:hover{color:var(--accent)}
.studio-disclosure>.hint{margin:0 0 12px}
.studio-disclosure>.field{margin-top:0!important;margin-bottom:12px}
.studio-disclosure .urlrow{margin-bottom:10px}
.selection-summary{margin-top:14px;padding:11px 12px;background:#f2f6ed;border:1px solid #e3e9dc;border-radius:10px;font-size:11px;line-height:1.6;color:#52664a;overflow-wrap:anywhere}
.studio-notice{background:#f3f6ef;border:1px solid #dfe7d8;border-radius:12px;padding:15px;font-size:12px;line-height:1.8;margin-bottom:18px;color:#52664a}
.next-option{width:100%;display:flex;align-items:center;justify-content:space-between;border:0;border-radius:8px;background:transparent;color:var(--accent);font-size:11.5px;font-weight:650;padding:8px 10px;min-height:36px;cursor:pointer;margin-bottom:6px}
.next-option:hover{background:#f0f5e9}.next-option:disabled{opacity:.5;cursor:wait}
.action-help{font-size:10px;line-height:1.6;color:var(--muted);text-align:center;margin:9px 4px 0}
.build-summary{font-size:10.5px;margin-bottom:4px}
:is(summary,button,input,select):focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(max-width:700px){
  #view{height:340px}.terrain-art{width:120px}#ovText h1{font-size:26px;margin:8px 0}#ovText p{font-size:10px}
  .overlay{padding-top:34px;gap:5px}.start-design{min-height:40px}.panel-intro p{min-height:0}
  .pfoot{padding:8px 16px 10px}.next-option{min-height:30px;padding:4px 8px;margin-bottom:2px}
  .action-help{font-size:9.5px;margin-top:5px}.panel-intro h2{font-size:22px}
}
@media(min-width:701px) and (max-height:800px){
  .panel-intro{padding:16px 20px 8px}.panel-intro h2{margin:6px 0;font-size:21px}.panel-intro p{min-height:0;font-size:11px}
  .pscroll{padding-top:14px}.drop{padding:17px 12px}.grp{padding-bottom:14px;margin-bottom:12px}
  .pfoot{padding:9px 20px 12px}.next-option{min-height:30px;padding:5px 8px;margin-bottom:2px}.action-help{margin-top:6px;font-size:9px}
}
@media(prefers-reduced-motion:reduce){.pscroll{scroll-behavior:auto}.start-design{transition:none}}