:root{--black: #0b0b0c;--charcoal: #17171b;--charcoal-2: #1f1f25;--charcoal-3: #29292f;--gold: #e3b23c;--gold-bright: #f6ce62;--gold-dim: #8a6d28;--thread-red: #c1443c;--paper: #f4ede0;--paper-line: #d9cdb4;--paper-line-strong: #c3b493;--ink: #241f18;--muted: #9a958c;--muted-2: #6b665e;--font-display: "Oswald", "Pretendard", sans-serif;--font-body: "Inter", "Pretendard", sans-serif;--font-mono: "IBM Plex Mono", ui-monospace, monospace;--radius: 3px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--black);color:var(--paper);font-family:var(--font-body);-webkit-font-smoothing:antialiased}button{font-family:inherit}::selection{background:var(--gold);color:var(--black)}.app{display:flex;flex-direction:column;height:100vh;min-height:640px}.app-header{display:flex;align-items:center;gap:16px;padding:10px 20px;background:var(--charcoal);border-bottom:1px solid var(--charcoal-3);flex-shrink:0}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:38px;height:38px;flex-shrink:0}.brand-text h1{margin:0;font-family:var(--font-display);font-size:17px;font-weight:600;letter-spacing:.14em;color:var(--gold-bright);text-transform:uppercase}.brand-text p{margin:1px 0 0;font-size:10.5px;letter-spacing:.08em;color:var(--muted);font-family:var(--font-mono)}.header-divider{width:1px;height:26px;background:var(--charcoal-3)}.header-sub{font-size:12.5px;color:var(--muted);font-family:var(--font-mono)}.header-spacer{flex:1}.header-actions{display:flex;gap:8px}.mobile-menu-btn,.mobile-menu-dropdown,.panel-fab,.side-panel-backdrop{display:none}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;background:var(--charcoal-2);border:1px solid var(--charcoal-3);color:var(--paper);font-size:12.5px;font-weight:500;border-radius:var(--radius);cursor:pointer;transition:border-color .12s ease,background .12s ease;white-space:nowrap}.btn:hover{border-color:var(--gold-dim);background:var(--charcoal-3)}.btn:disabled{opacity:.35;cursor:not-allowed}.btn:disabled:hover{border-color:var(--charcoal-3);background:var(--charcoal-2)}.btn-gold{background:var(--gold);border-color:var(--gold);color:var(--black);font-weight:600}.btn-gold:hover{background:var(--gold-bright);border-color:var(--gold-bright)}.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}.btn-ghost:hover{background:var(--charcoal-3);color:var(--paper)}.btn-danger:hover{border-color:var(--thread-red);color:var(--thread-red)}.app-body{flex:1;display:flex;min-height:0}.toolbar{width:76px;flex-shrink:0;background:var(--charcoal);border-right:1px solid var(--charcoal-3);display:flex;flex-direction:column;align-items:center;padding:14px 0;gap:6px}.tool-btn{width:56px;height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;background:transparent;border:1px solid transparent;border-radius:var(--radius);color:var(--muted);cursor:pointer;font-family:var(--font-mono);font-size:9.5px;letter-spacing:.03em}.tool-btn svg{width:20px;height:20px;stroke:currentColor}.tool-btn:hover{color:var(--paper);background:var(--charcoal-2)}.tool-btn.active{color:var(--gold-bright);background:var(--charcoal-2);border-color:var(--gold-dim)}.tool-key{font-size:7.5px;opacity:.5;margin-left:1px}.toolbar-divider{width:32px;height:1px;background:var(--charcoal-3);margin:8px 0}.canvas-area{flex:1;min-width:0;display:flex;flex-direction:column;background:var(--black)}.canvas-scroll{flex:1;overflow:auto;display:flex;align-items:flex-start;justify-content:center;padding:32px}.pattern-sheet{background:var(--paper);box-shadow:0 0 0 1px var(--charcoal-3),0 20px 60px #0000008c;flex-shrink:0;cursor:crosshair;touch-action:none}.sheet-corner-tick{stroke:var(--gold-dim);stroke-width:1}.seam-allowance{fill:none;stroke:#d4a017;stroke-width:.5;stroke-dasharray:3 2;pointer-events:none}.centerline{stroke:var(--gold-dim);stroke-width:.5;stroke-dasharray:3 3;opacity:.6}.status-bar{display:flex;align-items:center;gap:18px;padding:7px 18px;background:var(--charcoal);border-top:1px solid var(--charcoal-3);font-family:var(--font-mono);font-size:11px;color:var(--muted);flex-shrink:0;overflow:hidden}.status-bar span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.status-bar strong{color:var(--gold-bright);font-weight:500}.status-bar .field-row{overflow-x:auto;min-width:0}.status-tooltip{position:fixed;bottom:44px;left:50%;transform:translate(-50%);max-width:calc(100vw - 32px);background:var(--charcoal-3);color:var(--paper);padding:8px 14px;border-radius:6px;font-size:12px;z-index:100;cursor:pointer;box-shadow:0 2px 12px #00000080}.side-panel{width:288px;flex-shrink:0;background:var(--charcoal);border-left:1px solid var(--charcoal-3);display:flex;flex-direction:column;min-height:0}.panel-tabs{display:flex;border-bottom:1px solid var(--charcoal-3);flex-shrink:0}.panel-tab{flex:1;padding:12px 0;text-align:center;background:transparent;border:none;color:var(--muted);font-family:var(--font-display);font-size:12px;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;border-bottom:2px solid transparent}.panel-tab.active{color:var(--gold-bright);border-bottom-color:var(--gold)}.panel-tab-close{display:none}.panel-body{flex:1;overflow-y:auto;padding:18px}.panel-section-title{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin:0 0 10px}.field{margin-bottom:16px}.field label{display:block;font-size:11.5px;color:var(--muted);margin-bottom:6px;font-family:var(--font-mono)}.field input[type=text],.field input[type=number]{width:100%;padding:8px 10px;background:var(--charcoal-2);border:1px solid var(--charcoal-3);color:var(--paper);border-radius:var(--radius);font-family:var(--font-mono);font-size:13px}.field input:focus{outline:none;border-color:var(--gold)}.field-row{display:flex;gap:8px}.field-row .field{flex:1}.empty-hint{color:var(--muted-2);font-size:12.5px;line-height:1.6;padding:6px 2px}.shape-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.shape-row{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;background:var(--charcoal-2);border:1px solid var(--charcoal-3);border-radius:var(--radius);cursor:pointer;font-size:12px}.shape-row.selected{border-color:var(--gold);background:var(--charcoal-3)}.shape-row .tag{font-family:var(--font-mono);color:var(--gold);font-size:10px;text-transform:uppercase;margin-right:8px}.saved-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.saved-row{padding:10px;background:var(--charcoal-2);border:1px solid var(--charcoal-3);border-radius:var(--radius)}.saved-row-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}.saved-row-name{font-size:12.5px;font-weight:500;color:var(--paper)}.saved-row-meta{font-family:var(--font-mono);font-size:10px;color:var(--muted-2);margin-bottom:8px}.saved-row-actions{display:flex;gap:6px}.saved-row-actions .btn{padding:5px 9px;font-size:11px}.section-divider{margin:14px 0;border:none;border-top:1px solid var(--charcoal-3)}.roadmap-note{margin-top:22px;padding:12px;border:1px dashed var(--charcoal-3);border-radius:var(--radius);font-size:11.5px;color:var(--muted-2);line-height:1.6}.roadmap-note strong{color:var(--gold-dim)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:50}.modal{width:340px;background:var(--charcoal);border:1px solid var(--charcoal-3);border-radius:var(--radius);padding:20px}.modal h3{margin:0 0 14px;font-family:var(--font-display);font-size:15px;letter-spacing:.05em;color:var(--gold-bright);text-transform:uppercase}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:16px}@media print{@page{margin:0}body *{visibility:hidden}.pattern-sheet,.pattern-sheet *{visibility:visible}.pattern-sheet{position:absolute;top:0;left:0;box-shadow:none;width:calc(var(--sheet-w-mm) * 1mm);height:calc(var(--sheet-h-mm) * 1mm)}}@media (max-width: 1023px){.side-panel{width:240px}.toolbar{width:60px;padding:10px 0}.tool-btn{width:48px;height:48px;font-size:8.5px}.tool-btn svg{width:17px;height:17px}.canvas-scroll{padding:16px}.status-bar{gap:12px;padding:6px 12px;font-size:10px}.status-bar span:nth-child(-n+3){display:none}.app-header{gap:10px;padding:8px 12px}.brand-text h1{font-size:14px}.brand-text p{font-size:9px}.brand-mark{width:32px;height:32px}}@media (max-width: 767px){.app{min-height:auto}.app-header{gap:0;padding:6px 10px;z-index:60}.brand-text,.header-divider,.header-sub{display:none}.brand-mark{width:28px;height:28px}.header-actions{display:none}.mobile-menu-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;background:transparent;border:1px solid var(--charcoal-3);border-radius:var(--radius);color:var(--paper);font-size:18px;cursor:pointer;flex-shrink:0}.mobile-menu-btn:hover{background:var(--charcoal-2)}.mobile-menu-dropdown{position:absolute;top:calc(100% + 4px);right:10px;min-width:180px;background:var(--charcoal);border:1px solid var(--charcoal-3);border-radius:var(--radius);display:flex;flex-direction:column;z-index:70;box-shadow:0 8px 24px #00000080}.mobile-menu-dropdown .btn{justify-content:flex-start;padding:10px 14px;border:none;border-radius:0;background:transparent;font-size:13px;width:100%}.mobile-menu-dropdown .btn:hover{background:var(--charcoal-2)}.mobile-menu-dropdown .btn+.btn{border-top:1px solid var(--charcoal-3)}.app-body{position:relative}.toolbar{position:fixed;bottom:0;left:0;width:100%;height:auto;flex-direction:row;justify-content:space-around;padding:4px 0;gap:0;border-right:none;border-top:1px solid var(--charcoal-3);z-index:30;background:var(--charcoal)}.tool-btn{width:44px;height:44px;gap:2px;font-size:7.5px}.tool-btn svg{width:16px;height:16px}.tool-key,.toolbar-divider{display:none}.canvas-area{padding-bottom:56px}.canvas-scroll{padding:8px}.status-bar{gap:10px;padding:4px 10px;font-size:9px}.status-bar span{display:none}.side-panel{position:fixed;top:52px;left:0;width:100%;height:calc(100% - 52px);z-index:40;transform:translate(100%);transition:transform .2s ease;border-left:none}.side-panel.open{transform:translate(0)}.panel-tab-close{display:block;width:44px;flex:none;font-size:16px;color:var(--paper);border-left:1px solid var(--charcoal-3)}.side-panel-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:35}.panel-fab{display:flex;align-items:center;justify-content:center;position:fixed;bottom:110px;right:12px;width:40px;height:40px;background:var(--gold);border:none;border-radius:50%;color:var(--black);font-size:18px;cursor:pointer;z-index:25;box-shadow:0 2px 8px #0006}.panel-fab:hover{background:var(--gold-bright)}.panel-body{padding:12px}.modal{width:calc(100% - 32px);max-width:340px}}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--charcoal)}::-webkit-scrollbar-thumb{background:var(--charcoal-3);border-radius:6px}::-webkit-scrollbar-thumb:hover{background:var(--gold-dim)}