:root{
  --bg:#f4f1ec;
  --panel:#fff;
  --text:#242321;
  --muted:#77736c;
  --line:#ded8cf;
  --line-dark:#aaa297;
  --accent:#b57742;
  --danger:#9b3c31;
  --radius:14px;
}

*{box-sizing:border-box}
html,body{margin:0;width:100%;height:100%;overflow:hidden}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",Arial,sans-serif;color:var(--text);background:var(--bg)}
button,input,select{font:inherit}
button{cursor:pointer}
[hidden]{display:none!important}

.primary,.ghost,.text-btn,.tool-btn,.danger-outline,.icon-btn,.wall-add{
  border:1px solid var(--line);background:#fff;color:var(--text);border-radius:9px;padding:9px 13px
}
.primary{background:var(--text);border-color:var(--text);color:#fff;font-weight:750}
.ghost:hover,.tool-btn:hover{background:#f7f4ef}
.text-btn{border:0;background:transparent;padding:5px 4px;color:var(--muted)}
.danger-outline{border-color:#d9aaa4;color:var(--danger);background:#fff}
.full{width:100%;margin-top:9px}
.large{min-height:48px;padding:0 20px}

.screen-gate{position:fixed;inset:0;z-index:5000;background:#f4f1ec;display:grid;place-items:center;padding:24px}
.screen-gate-card{width:min(520px,100%);background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:0 18px 50px rgba(0,0,0,.12)}
.screen-gate-card strong{font-size:22px}.screen-gate-card p{margin:12px 0 0;color:var(--muted);line-height:1.7}

.start-screen{height:100%;display:grid;place-items:center;padding:28px;background:linear-gradient(135deg,#f2efe9,#fff)}
.start-card{width:min(760px,100%);padding:46px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 24px 70px rgba(50,43,35,.11)}
.start-card .eyebrow{margin:0 0 10px;color:var(--accent);font-size:12px;font-weight:900;letter-spacing:.12em}
.brand-home-link{display:inline-block;color:inherit;text-decoration:none}.brand-home-link:focus-visible{outline:2px solid currentColor;outline-offset:4px;border-radius:2px}
.start-card h1{margin:0;font-size:36px;letter-spacing:-.045em}.start-card>p:not(.eyebrow){color:var(--muted);line-height:1.65}
.pending-frame-notice{margin-top:20px;padding:15px 17px;border:1px solid #c99e72;border-radius:13px;background:#fff8ec;color:#694825}.pending-frame-notice strong{display:block;font-size:15px}.pending-frame-notice p{margin:6px 0 0;font-size:12px;line-height:1.6}
.start-actions{display:flex;gap:10px;margin-top:26px}
.browser-storage-note{margin:18px 0 0!important;padding:13px 15px;border-radius:10px;background:#f5f2ed;color:var(--muted)!important;font-size:11px;line-height:1.6!important}.browser-storage-note strong{color:var(--text)}
.recent-projects{border-top:1px solid var(--line);margin-top:28px;padding-top:22px}
.recent-project-item{width:100%;display:flex;align-items:stretch;border:1px solid var(--line);border-radius:12px;background:#fff;margin-top:9px;overflow:hidden}
.recent-project-open{min-width:0;flex:1;display:flex;align-items:center;justify-content:space-between;gap:16px;border:0;border-radius:0;background:#fff;padding:12px 14px;text-align:left}.recent-project-open:hover{background:#faf8f5}.recent-project-open b{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.recent-project-open small{flex:0 0 auto;color:var(--muted)}
.recent-project-delete{flex:0 0 54px;border:0;border-left:1px solid var(--line);border-radius:0;background:#fff8f7;color:#9b3b34;font-size:11px;font-weight:750}.recent-project-delete:hover{background:#ffefec}
.recent-project-storage-note{margin:12px 2px 0;color:var(--muted);font-size:10px;line-height:1.55}

.app-shell{height:100%;min-width:1180px;display:grid;grid-template-rows:68px 110px minmax(0,1fr) 240px}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 24px;background:#fff;border-bottom:1px solid var(--line)}
.brand-row{display:flex;align-items:center;gap:15px;min-width:0}.brand-row>strong{font-size:22px}.brand-row>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-row #projectNameLabel{color:var(--muted)}
.save-state{font-size:11px;color:#497255;background:#eef6ef;border-radius:999px;padding:5px 9px}.save-state.pending{color:#8a5a24;background:#fff4e5}
.top-actions{display:flex;gap:7px;white-space:nowrap}.top-actions button{padding:8px 11px;font-size:12px}

.wall-strip{display:flex;align-items:center;gap:12px;padding:13px 24px;background:#f6f3ee;border-bottom:1px solid var(--line);overflow:hidden}
.wall-tabs{display:flex;gap:12px;min-width:0;overflow-x:auto;scrollbar-width:thin}
.wall-tab{flex:0 0 174px;height:82px;border:1px solid var(--line-dark);border-radius:10px;background:#fff;padding:7px;text-align:left;position:relative}
.wall-tab.active{border:3px solid var(--text);padding:5px}
.wall-tab-preview{height:48px;border:1px solid var(--line);background:#ede9e1;position:relative;overflow:hidden;isolation:isolate}
.wall-tab-preview{background-repeat:repeat-x;background-position:left bottom;background-size:auto 100%}
.wall-tab-preview.partition{filter:brightness(.85)}
.wall-tab-preview.partition::after{content:"";position:absolute;left:0;right:0;bottom:0;z-index:1;height:var(--partition-height,72%);background-image:var(--partition-image);background-repeat:repeat-x;background-position:left bottom;background-size:auto 100%;border-top:1px solid rgba(90,86,80,.55);filter:brightness(1.1765)}
.wall-tab-preview.colorized::before{content:"";position:absolute;inset:0;z-index:2;background:var(--space-color);mix-blend-mode:multiply;pointer-events:none}
.wall-tab b{display:block;margin-top:5px;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.wall-add{flex:0 0 80px;height:82px;border-style:dashed;background:transparent;font-size:12px;font-weight:750}

.workspace{min-height:0;display:grid;grid-template-columns:182px minmax(0,1fr) 292px;background:#e7e4de}
.tool-panel,.info-panel{min-height:0;background:#fff;padding:18px 15px}.info-panel{overflow:auto}
.tool-panel{overflow:auto;border-right:1px solid var(--line);scrollbar-width:thin}.info-panel{border-left:1px solid var(--line)}
.tool-panel h2,.info-panel h2{margin:0;font-size:16px}.tool-panel section{border-top:1px solid var(--line);padding:11px 0}.tool-panel section:first-of-type{border-top:0}
.style-sets>span{display:block;margin-bottom:8px;color:var(--muted);font-size:11px;font-weight:800}
.tool-btn{width:100%;margin-bottom:4px;padding:6px 5px;font-size:11px;line-height:1.2}.tool-btn.active{background:var(--text);border-color:var(--text);color:#fff}.tool-btn:disabled{cursor:default;opacity:.34;background:#eeeae4;border-color:#d8d3cb;color:#8f8981}
.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px}.tool-grid .tool-btn{min-height:29px;margin:0}.tool-grid-wide{grid-column:1/-1}
.save-view-btn{margin-top:7px!important;border-style:dashed;background:#faf8f5}
.zoom-row{display:flex;gap:5px}.zoom-row button{flex:1;border:1px solid var(--line);border-radius:8px;background:#fff;padding:7px 4px;font-size:10px}
.canvas-panel{min-width:0;min-height:0;display:grid;grid-template-rows:46px minmax(0,1fr);padding:12px 16px 16px}
.canvas-toolbar{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);white-space:nowrap}.canvas-toolbar strong{font-size:14px;color:var(--text)}.canvas-display-toggles{display:flex;align-items:center;gap:11px;margin-left:5px}.canvas-display-toggles label{display:flex;align-items:center;gap:4px;color:#6f685f;font-size:10px;cursor:pointer}.canvas-display-toggles input{display:none}.canvas-display-toggles i{width:9px;height:9px;flex:0 0 9px;border-radius:50%;background:#cfc4b7;box-shadow:inset 0 0 0 1px rgba(89,72,55,.12)}.canvas-display-toggles input:checked+i{background:#9a7653;box-shadow:0 0 0 1px rgba(116,84,55,.15)}.canvas-display-toggles b{font-weight:700}.canvas-help{margin-left:auto;font-size:10px}
.stage-scroller{min-width:0;min-height:0;position:relative;overflow:auto;background:var(--text);border:1px solid #171614;overscroll-behavior:contain;scrollbar-width:none}
.stage-scroller::-webkit-scrollbar{display:none;width:0;height:0}
.wall-scene{position:relative;overflow:hidden;background:#eee;transform-origin:top left;user-select:none;touch-action:none;outline:none}
.wall-layer,.visitors-layer,.frames-layer,.distance-layer{position:absolute;inset:0}.wall-layer{background-repeat:repeat-x;background-position:left bottom;background-size:auto 100%;isolation:isolate}.wall-layer.colorized::after{content:"";position:absolute;inset:0;background:var(--space-color);mix-blend-mode:multiply;pointer-events:none}
.back-wall-layer{z-index:0}.partition-layer{z-index:1;top:auto;display:none}
.visitors-layer{z-index:6;pointer-events:none;overflow:hidden}.gallery-visitor{position:absolute;bottom:0;display:block;max-width:none;transform:translateX(-50%);opacity:.12;pointer-events:none;user-select:none}
.guide-line{position:absolute;left:0;right:0;height:18px;z-index:8;transform:translateY(-50%);cursor:ns-resize;touch-action:none}.guide-line::after{content:"";position:absolute;left:0;right:0;top:50%;border-top:1px dashed rgba(168,75,36,.95);pointer-events:none}
.guide-viewport-label{position:absolute;left:8px;z-index:30;min-width:118px;padding:6px 8px;border-radius:6px;background:rgba(255,255,255,.93);color:#8b4a2b;font-size:9px;line-height:1.25;box-shadow:0 1px 4px rgba(0,0,0,.14)}.guide-viewport-label>span{display:block}.guide-height-control{display:flex;align-items:center;gap:4px;margin-top:4px}.guide-height-control input{width:62px;height:25px;border:1px solid rgba(139,74,43,.35);border-radius:5px;background:#fff;padding:3px 5px;color:#633923;font-size:12px;font-weight:800;text-align:right}.guide-height-control span{font-size:10px;font-weight:700}
.frames-layer{z-index:5}.distance-layer{z-index:7;pointer-events:none}.floor-line{position:absolute;left:0;right:0;bottom:0;z-index:9;border-top:2px solid rgba(70,66,60,.55);pointer-events:none}.floor-line span{position:absolute;left:7px;bottom:5px;color:#5f5b55;font-size:9px;background:rgba(255,255,255,.5);padding:2px 4px}
.placed-frame{position:absolute;transform:translate(-50%,-50%);cursor:move;outline:0;z-index:2;box-shadow:0 3px 5px rgba(0,0,0,.40),4px 10px 10px rgba(0,0,0,.30)}.placed-frame.selected{outline:2px solid #d16b32;outline-offset:4px}.placed-frame img{position:absolute;max-width:none;pointer-events:none;user-select:none}.placed-frame .frame-name{position:absolute;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:9px;font-weight:800;color:#3c3935;background:rgba(255,255,255,.84);padding:2px 5px;border-radius:4px}
.distance-mark{position:absolute;height:1px;background:#6c665e;transform:translateY(-50%)}.distance-mark::before,.distance-mark::after{content:"";position:absolute;top:-3px;width:1px;height:7px;background:#6c665e}.distance-mark::before{left:0}.distance-mark::after{right:0}.distance-mark span{position:absolute;left:50%;bottom:4px;transform:translateX(-50%);background:rgba(255,255,255,.9);padding:2px 5px;border-radius:4px;font-size:9px;white-space:nowrap}.distance-mark.frame-gap{background:#b45f32}.distance-mark.frame-gap::before,.distance-mark.frame-gap::after{background:#b45f32}.distance-mark.frame-gap span{color:#8b4a2b}.distance-mark.overlap{background:#a33838}.distance-mark.overlap::before,.distance-mark.overlap::after{background:#a33838}.distance-mark.overlap span{color:#922f2f}
.height-mark{position:absolute;width:1px;background:#3d6f78}.height-mark::before,.height-mark::after{content:"";position:absolute;left:-3px;width:7px;height:1px;background:#3d6f78}.height-mark::before{top:0}.height-mark::after{bottom:0}.height-mark span{position:absolute;left:5px;top:-8px;border-radius:4px;background:rgba(255,255,255,.9);padding:2px 5px;color:#315f67;font-size:9px;white-space:nowrap}

.panel-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.info-panel dl{display:grid;grid-template-columns:88px minmax(0,1fr);gap:9px 8px;margin:0;padding:14px 0;border-top:1px solid var(--line);font-size:12px}.info-panel dt{color:var(--muted)}.info-panel dd{margin:0;font-weight:750;word-break:break-word}
.style-sets{border-top:1px solid var(--line);padding:14px 0}.style-set-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.style-set-btn{min-width:0;border:1px solid var(--line);border-radius:9px;background:#fff;padding:5px 3px}.style-set-btn.active{outline:2px solid var(--text)}.style-set-btn i{display:block;width:45px;max-width:100%;height:45px;margin:0 auto;background-repeat:no-repeat;background-position:center bottom;background-size:auto 100%;border-radius:5px;position:relative;overflow:hidden;isolation:isolate}.style-set-btn i.colorized::after{content:"";position:absolute;inset:0;background:var(--space-color);mix-blend-mode:multiply;pointer-events:none}.style-set-btn b{display:block;padding:5px 1px 1px;font-size:10px;white-space:nowrap}
.space-color-row{display:grid;grid-template-columns:minmax(0,1fr) 42px auto;align-items:center;gap:7px;margin-top:10px;padding-top:10px;border-top:1px solid var(--line);font-size:11px}.space-color-row input[type="color"]{width:42px;height:30px;border:1px solid var(--line);border-radius:7px;background:#fff;padding:3px;cursor:pointer}.space-color-row input[type="color"]::-webkit-color-swatch-wrapper{padding:0}.space-color-row input[type="color"]::-webkit-color-swatch{border:0;border-radius:4px}.space-color-row button{padding:7px 8px;font-size:10px}.space-color-row button:disabled{opacity:.42;cursor:default}
.danger-outline{width:100%;font-size:12px}
.selected-preview{height:138px;border:1px solid var(--line);background:#f1eee9;display:grid;place-items:center;overflow:hidden}.selected-preview img{max-width:88%;max-height:88%;object-fit:contain}.selected-name{display:block;margin:11px 0 2px;font-size:14px}
.coordinate-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.coordinate-grid label{position:relative;color:var(--muted);font-size:10px}.coordinate-grid input{width:100%;margin-top:5px;border:1px solid var(--line);border-radius:8px;padding:9px 28px 9px 8px}.coordinate-grid em{position:absolute;right:7px;bottom:10px;font-style:normal}

.art-tray{min-height:0;background:#fff;border-top:1px solid var(--line);padding:0 24px 18px;display:grid;grid-template-rows:45px minmax(0,1fr);transition:height .2s,padding .2s}.art-tray.collapsed{position:relative;transform:translateY(194px)}
.tray-head{display:flex;align-items:center;justify-content:space-between}.tray-head strong{font-size:14px}.tray-head strong span{margin-left:8px;color:var(--muted);font-size:11px;font-weight:500}.tray-head>div{display:flex;align-items:center;gap:9px}.tray-head button{font-size:11px;padding:6px 9px}.tray-head .add-frame-btn{min-width:112px;padding:9px 15px;font-size:13px;font-weight:800;box-shadow:0 3px 10px rgba(36,35,33,.16)}
.asset-list{min-width:0;display:flex;justify-content:safe center;gap:12px;overflow-x:auto;padding:1px 1px 8px}.asset-empty{width:100%;height:100%;display:grid;place-items:center;border:1px dashed var(--line-dark);color:var(--muted);font-size:12px;border-radius:10px}
.asset-card{width:126px;flex:0 0 126px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:7px 7px 11px;position:relative;cursor:grab}.asset-card.placed{opacity:.62}.asset-card.placed::after{content:"✓";position:absolute;left:10px;top:10px;width:21px;height:21px;display:grid;place-items:center;border-radius:50%;background:var(--text);color:#fff;font-size:11px;font-weight:900;z-index:2}.asset-thumb{height:122px;background:#efede8;border:1px solid var(--line);display:grid;place-items:center;overflow:hidden}.asset-thumb img{max-width:90%;max-height:90%;object-fit:contain}.asset-card b{display:block;margin-top:7px;font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.asset-card small{display:block;margin-top:3px;color:var(--muted);font-size:9px;line-height:1.3}.asset-card-delete{position:absolute;right:10px;top:10px;z-index:3;width:23px;height:23px;padding:0;border:1px solid rgba(120,52,45,.35);border-radius:50%;background:rgba(255,255,255,.94);color:#9b3b34;font-size:15px;line-height:1}.asset-card-delete:hover{background:#fff1ef;border-color:#9b3b34}

.dialog{width:min(520px,calc(100% - 32px));border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 22px 70px rgba(0,0,0,.22)}.dialog::backdrop{background:rgba(20,18,16,.47)}.wide-dialog{width:min(960px,calc(100% - 40px));max-height:90vh;overflow:auto}.dialog-head{display:flex;justify-content:space-between;gap:16px;margin-bottom:18px}.dialog-head strong{font-size:21px}.dialog-head p{margin:5px 0 0;color:var(--muted);font-size:12px}.icon-btn{width:32px;height:32px;padding:0;border-radius:50%;font-size:20px}.field{display:block;position:relative;margin:12px 0;color:var(--muted);font-size:12px}.field input,.field select{width:100%;margin-top:6px;border:1px solid var(--line);border-radius:9px;background:#fff;padding:11px 38px 11px 10px;color:var(--text)}.field em{position:absolute;right:11px;bottom:12px;font-style:normal}.wall-count-field{width:180px}.new-wall-forms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.new-wall-card{border:1px solid var(--line);border-radius:12px;padding:13px;background:#faf9f7}.new-wall-card strong{font-size:13px}.new-wall-card .mini-fields{display:grid;grid-template-columns:1fr 1fr;gap:7px}.new-wall-card .field{margin:8px 0;font-size:10px}.new-wall-card .field input,.new-wall-card .field select{padding:8px 26px 8px 8px}.two-fields{display:grid;grid-template-columns:1fr 1fr;gap:9px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}
.guide-dialog{text-align:center}.guide-dialog>strong{display:block;font-size:21px}.guide-dialog>p{color:var(--muted);line-height:1.65}.guide-visual{height:118px;background:#f2efe9;position:relative;margin-bottom:18px;overflow:hidden;border-radius:12px}.guide-visual::after{content:"";position:absolute;left:0;right:0;bottom:18px;border-top:2px solid #8b857d}.guide-demo-line{position:absolute;left:0;right:0;bottom:65px;border-top:1px dashed #b45f32}.guide-demo-line span{position:absolute;right:12px;bottom:4px;color:#8b4a2b;font-size:11px}
.toast{position:fixed;left:50%;bottom:25px;transform:translateX(-50%);z-index:4000;background:rgba(35,33,30,.94);color:#fff;border-radius:999px;padding:10px 16px;font-size:12px;box-shadow:0 10px 30px rgba(0,0,0,.2)}

@media(max-height:850px) and (min-width:1180px){
  .app-shell{grid-template-rows:58px 92px minmax(0,1fr) 174px}
  .topbar{padding:0 18px}.brand-row>strong{font-size:19px}.top-actions button{padding:6px 8px;font-size:11px}
  .wall-strip{padding:9px 18px}.wall-tab{height:68px;flex-basis:156px}.wall-tab-preview{height:37px}.wall-add{height:68px}
  .tool-panel,.info-panel{padding:13px 12px}.tool-panel section{padding:10px 0}.tool-btn{padding:6px 5px;margin-bottom:4px}
  .canvas-panel{grid-template-rows:38px minmax(0,1fr);padding:8px 12px 12px}.canvas-help{display:none}
  .art-tray{padding:0 18px 11px;grid-template-rows:36px minmax(0,1fr)}.asset-card{width:104px;flex-basis:104px}.asset-thumb{height:94px}
}

@media(max-width:1549px){.canvas-help{display:none}}

@media(max-width:1179px), (max-height:599px){.screen-gate{display:grid!important}}