@import url('https://fonts.googleapis.com/css2?family=Jua&family=Gowun+Dodum&display=swap');
:root{font-family:'Gowun Dodum','Apple SD Gothic Neo','Malgun Gothic',sans-serif;color:#2e4656;background:#eff8fd;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-width:320px}button,input,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #6cb7e8;outline-offset:2px}.app-shell{height:100dvh;min-height:0;display:flex;flex-direction:column}
.topbar{height:74px;flex-shrink:0;background:linear-gradient(116deg,#d9efff,#f6fbff 72%);border-bottom:3px solid #9cc8e5;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 20px;box-shadow:0 2px 11px #27405d20;z-index:5}.brand{display:flex;align-items:center;gap:11px;white-space:nowrap}.brand-emoji{background:#a9dfff;width:45px;height:45px;display:grid;place-items:center;border-radius:15px;border:2px solid #73b4df;font-size:27px;box-shadow:0 4px #519bd033}.brand strong{display:block;font:26px 'Jua','Malgun Gothic',sans-serif;letter-spacing:-.5px;color:#225b88}.brand small{display:block;font-size:12px;color:#628aab}.top-actions{display:flex;align-items:center;gap:7px;flex-wrap:wrap;justify-content:flex-end}.btn{border:1px solid #c8ddea;background:white;border-radius:12px;padding:9px 13px;font:15px 'Jua','Malgun Gothic',sans-serif;color:#385c75;box-shadow:0 3px 0 #bfd9e8;transition:transform .12s,box-shadow .12s,background .12s;white-space:nowrap}.btn:hover{background:#eef9ff}.btn:active{transform:translateY(2px);box-shadow:0 1px 0 #bfd9e8}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-soft{background:#fffefe}.btn-dark{background:#315b77;color:#fff;border-color:#284a63;box-shadow:0 3px #213f55}.btn-dark:hover{background:#467493}.btn-sky{background:#a8ddfb;color:#184e76;border-color:#6ab5e6;box-shadow:0 3px #6daed2}.btn-sky:hover{background:#8ed1fa}.btn-mini{font-size:13px;padding:5px 9px;border-radius:9px}.btn-small{font-size:14px;padding:6px 10px}.block{display:block;width:100%;text-align:center}.save-status{font-size:12px;color:#6b8da5;white-space:nowrap;margin-right:8px}
.workspace{display:grid;grid-template-columns:minmax(280px,320px) minmax(420px,1fr) minmax(274px,302px);grid-template-rows:minmax(0,1fr);gap:11px;padding:11px;flex:1;min-height:0}.pane,.center-pane{background:#fff;border:1px solid #d8e8f2;border-radius:18px;box-shadow:0 4px 14px #203e570c;min-height:0;overflow:hidden}.pane{display:flex;flex-direction:column}.pane-title{height:49px;min-height:49px;border-bottom:1px solid #e4eef5;padding:8px 14px;display:flex;align-items:center;justify-content:space-between;font:19px 'Jua',sans-serif;color:#315f83}
.tabs{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));background:#f1f8fd;padding:6px;gap:3px}.tab{border:0;border-radius:10px;padding:8px 2px;font:15px 'Jua',sans-serif;color:#678ba5;background:transparent}.tab.active{background:#d0eaff;color:#235d85;box-shadow:inset 0 -2px #95c9ee}.pane-scroll,.right-scroll{overflow:auto;min-height:0;flex:1;overscroll-behavior:contain}.tab-content{padding:14px}.hidden{display:none!important}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:11px}.section-heading strong{font:19px 'Jua',sans-serif}.tiny-muted{font-size:12px;color:#708899;line-height:1.65;margin:3px 0 10px}.no-margin{margin:0}.stack{display:flex;flex-direction:column;gap:10px}.item-card{border:1px solid #d8e6f0;border-radius:13px;padding:11px;background:#fcfeff}.item-card.selected{border-color:#67afe0;box-shadow:0 0 0 2px #a5d8fa7c}.item-top{display:flex;align-items:center;justify-content:space-between;gap:5px;margin-bottom:8px}.item-name{font:16px 'Jua',sans-serif;display:flex;align-items:center;gap:7px;min-width:0}.mini-actions{display:flex;gap:4px;align-items:center}.icon-btn{width:29px;height:29px;border:1px solid #d5e6f3;background:white;border-radius:8px;color:#5a83a0;display:grid;place-items:center;font-size:15px}.icon-btn:hover{background:#e4f5ff}.icon-btn.danger:hover{color:#bd4c4c;background:#fff1ed}.icon-btn.locked{color:#13547e;background:#d9f0ff;border-color:#8dc8f2}.form-grid{display:grid;gap:8px}.cols2{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid label,.item-card label,.settings-body label{display:flex;flex-direction:column;gap:4px;color:#647f92;font-size:12px;min-width:0}.item-card input,.item-card select,.settings-body input,.settings-body select{width:100%;height:33px;background:#fff;border:1px solid #cbdfea;border-radius:8px;padding:5px 8px;color:#304d64;font:13px 'Gowun Dodum',sans-serif;min-width:0}.item-card .wide{margin-bottom:8px}.item-card .rowline{display:flex;align-items:center;gap:8px;margin-top:9px}.item-card .rowline label{flex:1}.check{display:flex!important;flex-direction:row!important;align-items:center;gap:7px!important;white-space:normal!important;cursor:pointer}.check input{width:16px!important;height:16px!important;accent-color:#4e9fd1;flex-shrink:0}.hint{font-size:12px;background:#f2f9fe;padding:10px;border-radius:9px;color:#517b96}.card-help{font-size:11px;color:#768d9e;line-height:1.5;margin:4px 0 8px}.item-card input[type="range"],.settings-body input[type="range"]{padding:0;height:23px;accent-color:#5daede;cursor:pointer}.mini-value{font-weight:700;color:#2f739e}.card-strong{font-weight:700;color:#336987}.item-card .btn{white-space:normal}
.center-pane{display:flex;flex-direction:column;background:#f8fcff}.canvas-header{min-height:0;display:flex;flex-direction:column;align-items:stretch;gap:10px;padding:11px 14px 13px;border-bottom:1px solid #e2eef6;background:white}.canvas-heading{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:4px 10px}.canvas-heading strong{font:19px 'Jua',sans-serif;color:#315c7b}.canvas-heading span{font-size:12px;color:#809bab}.toolbox{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:7px;width:100%}.tool{width:100%;min-width:0;min-height:74px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:8px 1px;background:#f8fcff;border:2px solid #d4e4f0;border-radius:13px;color:#416d8e;font:28px 'Jua',sans-serif;line-height:1;box-shadow:0 3px 0 #d5e5f0;transition:background .12s,transform .12s,box-shadow .12s}.tool .tool-icon{display:block;font-size:28px;line-height:29px;color:inherit}.tool small{display:block;margin-top:5px;font:15px 'Jua',sans-serif;line-height:1.1;white-space:nowrap;color:inherit}.tool:hover{background:#e9f7ff;border-color:#a4cff0}.tool.active{background:#c9eafa;border-color:#67aee0;color:#22557d;box-shadow:0 3px 0 #9ac9e7}.tool:active{transform:translateY(2px);box-shadow:0 1px 0 #a9d4ec}.shape-tool-wrap{position:relative;min-width:0}.shape-menu{position:absolute;top:calc(100% + 9px);left:0;background:white;border:1px solid #9bc7e6;box-shadow:0 10px 26px #18395033;padding:7px;border-radius:12px;z-index:12;width:172px}.shape-menu button{display:block;width:100%;text-align:left;white-space:nowrap;border:0;border-radius:8px;padding:10px 12px;font:15px 'Jua',sans-serif;color:#285b7b;background:white}.shape-menu button:hover{background:#d9efff}
.stage-area{flex:1;min-height:170px;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:18px;overflow:auto;background:radial-gradient(circle,#d7e8f4 1px,transparent 1px) 0 0/19px 19px,#eef6fc}.paper{width:min(100%,850px);max-height:100%;display:flex;align-items:center;justify-content:center;aspect-ratio:880/580;background:white;box-shadow:0 12px 36px #223e5438,0 2px 5px #263a2114;border:1px solid #e5edf2;overflow:hidden}.paper svg{width:100%;height:100%;display:block;touch-action:none;user-select:none}.paper svg[data-tool="point"],.paper svg[data-tool="line"],.paper svg[data-tool="angle"],.paper svg[data-tool="polygon"],.paper svg[data-tool="circle"],.paper svg[data-tool="text"],.paper svg[data-tool="fill"]{cursor:crosshair}.paper svg[data-tool="pan"]{cursor:grab}.paper svg [data-drag]{cursor:grab}.paper svg [data-drag]:hover{filter:drop-shadow(0 0 2px #77bde9)}.stage-message{margin-top:15px;padding:7px 13px;font-size:12px;color:#537a98;background:#ffffffeb;border-radius:20px;text-align:center}.canvas-footer{min-height:54px;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:7px 13px;border-top:1px solid #e0ecf6;background:white}.zoom-controls{display:flex;align-items:center;gap:5px;white-space:nowrap}.zoom-controls span{font-size:12px;min-width:48px;text-align:center}.cursor-coords{font-size:12px;color:#647f92;font-variant-numeric:tabular-nums}.footer-note{font-size:11px;color:#8b9dab}.settings-box{border-bottom:1px solid #e4eef5;background:white}.settings-box summary{list-style:none;cursor:pointer;font:17px 'Jua',sans-serif;padding:13px 15px;color:#365f7d;display:flex;justify-content:space-between;align-items:center}.settings-box summary::-webkit-details-marker{display:none}.settings-box summary:after{content:'⌄';font:18px sans-serif;color:#87a6bb}.settings-box[open] summary:after{transform:rotate(180deg)}.settings-body{padding:1px 15px 14px;display:flex;flex-direction:column;gap:10px}.settings-body label output{font-size:12px;margin-left:5px;color:#2e719d}.toast{position:fixed;bottom:19px;left:50%;transform:translateX(-50%) translateY(60px);background:#2e5d7b;color:white;padding:11px 18px;border-radius:15px;font-size:14px;box-shadow:0 7px 24px #0003;z-index:20;opacity:0;pointer-events:none;transition:all .22s}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}code{font-family:Consolas,'Courier New',monospace;background:#eff6fa;border-radius:4px;padding:2px 4px}
.angle-mode-btn{margin-bottom:8px;white-space:normal;min-height:39px}.angle-mode-btn.armed{background:#c9eafb;border-color:#64abdb;color:#245879;box-shadow:0 0 0 2px #b7e3fb}
@media(max-width:1250px){.workspace{grid-template-columns:minmax(250px,290px) minmax(350px,1fr) minmax(250px,275px);gap:7px;padding:7px}.topbar{padding-inline:12px}.brand strong{font-size:22px}.top-actions .btn{padding:8px}.top-actions .btn-soft span{display:none}.footer-note{display:none}.toolbox{gap:4px}.tool{min-height:67px}.tool .tool-icon{font-size:25px}.tool small{font-size:13px}}
@media(max-width:1050px){.app-shell{height:auto;min-height:100dvh}.workspace{grid-template-columns:minmax(258px,300px) minmax(400px,1fr);grid-template-rows:minmax(500px,1fr) auto;height:auto;overflow:auto;min-height:calc(100dvh - 74px)}.right-pane{grid-column:1/-1;grid-row:2}.right-scroll{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.settings-box{border-right:1px solid #e4eef5}.left-pane,.center-pane{min-height:500px}}
@media(max-width:750px){.topbar{height:auto;min-height:68px;flex-wrap:wrap;padding:7px 11px}.top-actions{width:100%;justify-content:space-between}.save-status{display:none}.top-actions .btn{font-size:13px;padding:7px}.workspace{display:flex;flex-direction:column;height:auto}.center-pane{order:0;min-height:500px}.left-pane{order:1;min-height:380px;max-height:700px}.right-pane{order:2}.right-scroll{grid-template-columns:1fr}.canvas-heading{display:none}.canvas-header{padding:9px 6px}.toolbox{gap:3px}.tool{min-height:61px;padding:5px 0;border-radius:9px}.tool .tool-icon{font-size:21px}.tool small{font-size:10px;margin-top:3px}.stage-area{padding:10px}.canvas-footer{flex-wrap:wrap}.paper{max-width:100%}.pane-scroll{min-height:250px}}