:root{font-family:Arial,Helvetica,sans-serif;color:#1c2530;font-synthesis:none;--red:#f5111b;--action-red:#c51421;--action-hover:#a70e19;--border:#7f8d9b;--panel-border:#bec8d1;--muted:#54616e}
*{box-sizing:border-box}
body{margin:0;background:#494d51}
button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button{font:inherit;cursor:pointer}
button:focus-visible,a:focus-visible,canvas:focus-visible{outline:3px solid var(--action-red);outline-offset:3px}
button svg{display:block;width:22px;height:22px;flex-shrink:0}
button:disabled{cursor:wait;opacity:.45}
[hidden]{display:none!important}

.overlay{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:18px;background:rgba(0,0,0,.12)}
.viewer{width:1240px;max-width:100%;padding:19px;background:#fff;border:1px solid #e6e8ea;border-radius:9px;box-shadow:0 20px 65px #0003;position:relative}
.viewer-header{min-height:50px;margin-bottom:10px;padding:0 6px;display:flex;align-items:flex-start;justify-content:space-between;gap:18px}
.viewer-heading{min-width:0}
.viewer-heading h1{font-size:24px;line-height:30px;letter-spacing:.05px;font-weight:750;margin:0}
.viewer-heading p{font-size:13px;line-height:20px;color:var(--muted);margin:0}
.header-actions{display:flex;flex-shrink:0;gap:8px}
.icon-button{background:#fff;color:#273744;border:1px solid var(--border);width:44px;height:44px;display:grid;place-items:center;padding:8px;border-radius:8px}
.icon-button:hover{background:#edf1f4;border-color:#657583}
.icon-button svg{width:25px;height:25px}

.stage{position:relative;width:100%;height:clamp(330px,57dvh,660px);overflow:hidden;border-radius:10px;background:radial-gradient(ellipse at 50% 60%,#fbfcfc 12%,#eceef0 70%,#dde1e5 100%)}
.stage canvas{position:absolute;inset:0;display:block;width:100%;height:100%;touch-action:none;cursor:grab;z-index:1}
.stage canvas:active{cursor:grabbing}
.stage.is-panning canvas{cursor:move}
.sabko-watermark{position:absolute;left:50%;top:72%;width:min(55%,470px);height:auto;transform:translate(-50%,-50%);filter:url(#sabko-watermark-filter);opacity:.085;pointer-events:none;user-select:none;z-index:0}
.stage-heading{position:absolute;top:14px;left:16px;right:16px;display:flex;align-items:center;justify-content:space-between;gap:10px;pointer-events:none;z-index:2;color:#54616e;font-size:12px;font-weight:600;letter-spacing:.15px}
.dimension-status{flex-shrink:0;background:#fffffff2;border:1px solid var(--panel-border);border-radius:7px;padding:6px 9px;color:#273744}
.stage-note{position:absolute;left:12px;right:12px;bottom:12px;margin:auto;max-width:550px;padding:8px 12px;border-radius:7px;background:#fffffff2;color:#53616c;font-size:12px;line-height:18px;text-align:center;z-index:2;pointer-events:none}
.loading{position:absolute;inset:0;display:flex;gap:15px;align-items:center;justify-content:center;flex-direction:column;color:#626c78;font-size:14px;z-index:4;background:#eef0f2}
.loading-ring{display:block;width:27px;height:27px;border:2px solid #dce1e5;border-top-color:var(--red);border-radius:50%;animation:spin .85s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.error{position:absolute;inset:0;display:grid;place-items:center;padding:40px;text-align:center;background:#f4f5f6;color:#8a2222;z-index:5;font-size:15px;line-height:1.6}

.control-area{padding-top:12px}
.toolbar{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px}
.tool-group{display:flex;align-items:center;gap:3px;min-height:50px;max-width:100%;border-radius:12px;background:#f3f5f7;box-shadow:0 3px 12px #1b293510;border:1px solid var(--panel-border);padding:2px 3px}
.tool-group button{border:1px solid var(--border);border-radius:7px;background:#fff;display:grid;place-items:center;min-width:44px;height:44px;padding:8px 9px;color:#23303b}
.tool-group button:hover{background:#edf1f4;border-color:#657583}
.tool-group button[aria-pressed=true]{background:var(--action-red);border-color:var(--action-red);color:#fff}
.tool-group .auto-button{min-width:62px}
.rotation-symbol{font-weight:700;font-size:16px;letter-spacing:-.5px}
.tool-separator{width:1px;height:25px;background:#b1bdc7;margin:0 1px}

.view-presets{display:flex;flex-wrap:wrap;gap:6px;padding:4px;border-radius:10px;border:1px solid var(--panel-border);background:#f3f5f7}
.view-presets button,.dimension-presets button{min-height:44px;min-width:0;max-width:100%;border:1px solid var(--border);border-radius:7px;background:#fff;color:#273744;padding:10px 14px;font-size:14px;font-weight:600;line-height:20px;text-align:center;white-space:normal;transition:background-color .15s,border-color .15s,color .15s}
.view-presets button:hover,.dimension-presets button:hover{background:#edf1f4;border-color:#657583}
.view-presets button[aria-pressed=true],.dimension-presets button[aria-pressed=true]{background:var(--action-red);border-color:var(--action-red);color:#fff;font-weight:700;box-shadow:0 2px 5px #85101b1a}
.tool-group button[aria-pressed=true]:hover,.view-presets button[aria-pressed=true]:hover,.dimension-presets button[aria-pressed=true]:hover{background:var(--action-hover);border-color:var(--action-hover)}
.help{margin:10px 5px 0;text-align:center;color:var(--muted);font-size:12px;line-height:18px}
.touch-help{display:none}

.viewer-footer{display:flex;align-items:stretch;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:12px}
.dimension-button,.design-button{min-height:44px;padding:11px 20px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:14px;font-weight:700;line-height:20px;border-radius:8px;text-decoration:none;text-align:center;white-space:normal}
.dimension-button{border:1px solid var(--border);color:#202b36;background:#fff;min-width:210px}
.dimension-button:hover{background:#edf1f4;border-color:#657583}
.dimension-button[aria-pressed=true]{background:var(--action-red);border-color:var(--action-red);color:#fff}
.dimension-button[aria-pressed=true]:hover{background:var(--action-hover);border-color:var(--action-hover)}
.dimension-button svg{width:22px;height:22px}
.design-button{border:1px solid var(--action-red);background:var(--action-red);color:#fff;min-width:230px;box-shadow:0 2px 9px #c5142118}
.design-button:hover{background:var(--action-hover);border-color:var(--action-hover)}
.dimension-panel{background:#f3f5f7;border:1px solid var(--panel-border);border-radius:9px;padding:10px 12px;margin-top:11px}
.dimension-presets{display:flex;align-items:stretch;justify-content:center;gap:8px;flex-wrap:wrap}
.dimension-summary{font-size:13px;line-height:19px;color:#4e5d68;text-align:center;margin:8px 0 0}
.dimension-summary strong{color:#263846}
.foundation-note{margin:10px 0 0;padding:9px 12px;border-radius:7px;background:#f4f5f6;border-left:3px solid var(--red);font-size:12px;line-height:18px;color:#4e5d68}
.foundation-note strong{color:#263846;white-space:nowrap}
.notice{margin:10px 0 0;text-align:center;font-size:12px;line-height:18px;color:var(--muted)}
.copyright{font-size:11px;color:#626c78;text-align:center;margin:7px 0 0;line-height:16px}
.page-open{position:fixed;left:50%;top:48%;transform:translate(-50%,-50%);border:1px solid var(--action-red);border-radius:8px;background:var(--action-red);color:#fff;min-height:44px;font-size:14px;font-weight:700;padding:17px 25px;box-shadow:0 8px 32px #0003}
.page-open:hover{background:var(--action-hover);border-color:var(--action-hover)}

.gate-controls{margin-top:10px;padding:6px;background:#f3f5f7;border:1px solid var(--panel-border);border-radius:9px}
.gate-controls button{flex:1}
.gate-toggle{position:absolute;top:0;left:0;transform:translate(-50%,-50%);z-index:3;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;min-width:120px;max-width:calc(100% - 24px);padding:10px 16px;border:2px solid var(--action-red);border-radius:999px;background:#fff;color:var(--action-red);box-shadow:0 4px 16px #1b293526,0 1px 3px #1b29351a;font-size:14px;font-weight:700;line-height:18px;white-space:nowrap;pointer-events:auto;user-select:none;touch-action:manipulation;transition:border-color .16s,color .16s,background-color .16s,box-shadow .16s}
.gate-toggle svg{width:20px;height:20px}
.gate-toggle[aria-pressed=true]{border-color:var(--action-red);color:#fff;background:var(--action-red)}
.gate-toggle:active{border-color:var(--action-hover);color:#fff;background:var(--action-hover);box-shadow:0 2px 8px #c5142128}
.gate-toggle:focus-visible{outline:3px solid var(--action-red);outline-offset:3px}
.gate-motion-help{flex:0 0 100%;margin:2px 0 3px;padding:0 4px;text-align:center;color:var(--muted);font-size:12px;line-height:18px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);clip-path:inset(50%);white-space:nowrap;border:0}
@media(hover:hover){
  .gate-toggle:hover{border-color:var(--action-red);color:#fff;background:var(--action-red);box-shadow:0 5px 18px #1b293526,0 0 0 1px #c514211a}
  .gate-toggle[aria-pressed=true]:hover{border-color:var(--action-hover);background:var(--action-hover)}
}

.viewer:fullscreen,.viewer.is-expanded{transform:none;width:100vw;max-width:none;height:100dvh;padding:16px;border:0;border-radius:0;display:flex;flex-direction:column;overflow:auto}
.viewer.is-expanded{position:fixed;inset:0;z-index:50}
.viewer:fullscreen .stage,.viewer.is-expanded .stage{flex:1;height:auto;min-height:240px}
.viewer:fullscreen .viewer-header,.viewer.is-expanded .viewer-header,.viewer:fullscreen .control-area,.viewer.is-expanded .control-area{flex-shrink:0}

.sabko-embedded,.sabko-embedded body{margin:0;background:#fff;width:100%;height:100%;overflow:auto}
.sabko-embedded .overlay{min-height:100dvh;padding:0;background:transparent;display:block}
.sabko-embedded .viewer{width:100%;max-width:none;padding:0;border:0;border-radius:0;box-shadow:none;min-height:100dvh;display:flex;flex-direction:column}
.sabko-embedded .viewer-header{display:none}
.sabko-embedded .stage{height:calc(100dvh - 210px);min-height:260px;flex:1}
.sabko-embedded .control-area{padding:10px 8px 7px}
.sabko-embedded .copyright{display:none}
.sabko-embedded.has-dimensions .stage{height:calc(100dvh - 310px)}

@media(max-width:700px){
  .overlay{padding:9px;align-items:center}
  .viewer{padding:12px;border-radius:10px}
  .viewer-header{padding:0 2px;gap:6px;min-height:52px;margin-bottom:9px}
  .viewer-heading h1{font-size:20px;line-height:26px;letter-spacing:-.4px}
  .viewer-heading p{font-size:11px;line-height:16px;max-width:260px}
  .header-actions{gap:6px}
  .icon-button{width:44px;height:44px;padding:9px}
  .icon-button svg{width:23px;height:23px}
  .stage{height:clamp(340px,51dvh,520px);border-radius:8px}
  .stage-heading{top:10px;left:12px;right:12px;font-size:11px}
  .sabko-watermark{width:75%;top:73%}
  .toolbar{gap:8px}
  .view-presets{width:100%;justify-content:center}
  .view-presets button,.dimension-presets button{flex:1 1 100px;padding:10px 8px;font-size:13px;line-height:18px}
  .help{font-size:11px;line-height:17px;margin-top:8px}
  .touch-help{display:inline}
  .viewer-footer{gap:8px;margin-top:10px}
  .dimension-button,.design-button{padding:10px 12px;font-size:13px;line-height:20px;gap:8px;min-width:0;flex:1 1 180px}
  .dimension-button svg{width:21px;height:21px}
  .dimension-panel{padding:8px;margin-top:8px}
  .dimension-presets{gap:6px}
  .dimension-summary{font-size:12px;line-height:18px}
  .foundation-note{font-size:12px;line-height:18px;padding:8px 10px;margin-top:8px}
  .notice{font-size:11px;line-height:17px}
  .copyright{font-size:10px;line-height:15px}
  .gate-toggle{min-width:112px;min-height:44px;padding:10px 13px;font-size:13px}
  .gate-motion-help{font-size:11px;line-height:17px}
  .sabko-embedded .stage{height:calc(100dvh - 260px);min-height:270px}
  .sabko-embedded.has-dimensions .stage{height:calc(100dvh - 365px)}
}
@media(max-height:710px) and (min-width:701px){
  .overlay{padding:10px}
  .viewer{padding:13px}
  .viewer-header{min-height:44px;margin-bottom:7px}
  .viewer-heading h1{font-size:22px;line-height:27px}
  .stage{height:max(240px,calc(100dvh - 258px))}
  .has-dimensions .stage{height:max(230px,calc(100dvh - 345px))}
  .control-area{padding-top:8px}
  .notice{margin-top:8px}
  .copyright{margin-top:5px}
}
@media(prefers-reduced-motion:reduce){
  .loading-ring{animation:none}
  .gate-toggle,.view-presets button,.dimension-presets button{transition:none}
  *{scroll-behavior:auto}
}