:root{--bg: #0f172a;--bg-2: #1e293b;--panel: #111827;--panel-2: #1f2937;--line: #334155;--line-strong: #475569;--text: #e5e7eb;--text-dim: #94a3b8;--accent: #38bdf8;--danger: #ef4444;--ok: #22c55e;--sidebar-w: 340px;--sidebar-collapsed-h: 96px;--sidebar-expanded-h: 60vh}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans KR,sans-serif;font-size:14px;overflow:hidden;-webkit-text-size-adjust:100%;overscroll-behavior:none}body{touch-action:manipulation}button{font:inherit;color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}input,select{-webkit-tap-highlight-color:transparent}.app{display:grid;grid-template-columns:1fr var(--sidebar-w);height:100dvh;width:100vw}@media (max-width: 768px){.app{grid-template-columns:1fr;grid-template-rows:1fr auto}}.grid-wrap{position:relative;background:radial-gradient(ellipse at center,#1a2540,#0a0f1f 70%);overflow:hidden;min-height:0}.grid-controls{position:absolute;top:12px;left:12px;z-index:10;display:flex;align-items:center;gap:6px;background:#0f172ad9;border:1px solid var(--line);padding:6px 10px;border-radius:8px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);flex-wrap:wrap;max-width:calc(100% - 24px)}.grid-controls button{background:var(--panel-2);border:1px solid var(--line);color:var(--text);padding:6px 12px;border-radius:6px;min-height:36px}.grid-controls button:hover{border-color:var(--accent)}.grid-controls__hint{color:var(--text-dim);font-size:11px;margin-left:4px;display:none}@media (min-width: 1100px){.grid-controls__hint{display:inline}}.grid-controls__zoom{color:var(--accent);font-variant-numeric:tabular-nums;font-weight:600;margin-left:4px}.viewport{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;cursor:default;touch-action:none;user-select:none;-webkit-user-select:none}.pan-layer{position:absolute;top:0;left:0;transform-origin:0 0;will-change:transform}.grid-frame{position:relative;transform:rotate(45deg);transform-origin:0 0;background-color:#0c1424;background-image:linear-gradient(to right,var(--line) 1px,transparent 1px),linear-gradient(to bottom,var(--line) 1px,transparent 1px);box-shadow:inset 0 0 0 2px var(--line-strong),0 0 40px #38bdf826}.bld{position:absolute;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:4px;border:2px solid rgba(255,255,255,.55);color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.6);-webkit-user-select:none;user-select:none;cursor:grab;touch-action:none;transition:box-shadow .1s ease,transform .1s ease;box-shadow:0 2px 8px #0006;z-index:5}.bld:active{cursor:grabbing}.bld.is-selected{outline:3px solid var(--accent);outline-offset:2px;z-index:7}.bld__icon{font-size:22px;line-height:1;transform:rotate(-45deg)}.bld__label{font-size:11px;font-weight:600;margin-top:2px;transform:rotate(-45deg);white-space:nowrap}.bld--banner{z-index:6}.banner-range{position:absolute;background:#f59e0b2e;border:1.5px dashed rgba(245,158,11,.7);pointer-events:none;z-index:2}.preview{position:absolute;pointer-events:none;border-radius:4px;z-index:8}.preview--ok{background:#22c55e40;border:2px dashed var(--ok)}.preview--bad{background:#ef444440;border:2px dashed var(--danger)}.drag-ghost{position:fixed;z-index:1000;pointer-events:none;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:4px;opacity:.9}.drag-ghost__shape{display:flex;align-items:center;justify-content:center;border:2px solid rgba(255,255,255,.7);border-radius:6px;box-shadow:0 6px 20px #0009;color:#fff}.drag-ghost__icon{font-size:22px;text-shadow:0 1px 2px rgba(0,0,0,.6)}.drag-ghost__label{background:#0f172ad9;color:var(--text);font-size:11px;font-weight:600;padding:2px 6px;border-radius:4px}.selection-bar{position:absolute;top:12px;right:12px;z-index:11;display:flex;align-items:center;gap:8px;background:#0f172aeb;border:1px solid var(--accent);padding:6px 10px;border-radius:8px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.selection-bar__label{color:var(--text);font-weight:600;font-size:13px;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.selection-bar__btn{padding:6px 12px;font-size:12px;min-height:32px}@media (max-width: 768px){.selection-bar{top:auto;bottom:8px;right:8px;left:8px;justify-content:space-between}}.sidebar{background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden;min-height:0}.sidebar__title{padding:14px 16px 10px;border-bottom:1px solid var(--line)}.sidebar__title h1{font-size:18px;margin:0}.sidebar__title p{margin:4px 0 0;color:var(--text-dim);font-size:12px}.sidebar__top{display:flex;align-items:center;justify-content:space-between;gap:8px}.sidebar__top-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}.sidebar__toggle{display:none;background:var(--panel-2);border:1px solid var(--line);color:var(--text);width:36px;height:36px;border-radius:6px;font-size:14px}.sidebar__scroll{flex:1;overflow-y:auto;padding:12px 16px;display:flex;flex-direction:column;gap:12px;-webkit-overflow-scrolling:touch}@media (max-width: 768px){.sidebar{border-left:none;border-top:1px solid var(--line);max-height:var(--sidebar-collapsed-h)}.sidebar.is-expanded{max-height:var(--sidebar-expanded-h)}.sidebar__toggle{display:inline-flex;align-items:center;justify-content:center}.sidebar__title p{display:none}.sidebar__title,.sidebar__scroll{padding:10px 12px}.sidebar:not(.is-expanded) .sidebar__scroll>*:not(.panel:first-child){display:none}.sidebar:not(.is-expanded) .panel:first-child{padding:8px}.sidebar:not(.is-expanded) .panel:first-child h2{display:none}}.panel{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:10px}.panel h2{font-size:13px;text-transform:uppercase;letter-spacing:.04em;margin:0;color:var(--text-dim)}.panel__heading{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}.hint{margin:0;color:var(--text-dim);font-size:12px;line-height:1.4}.empty{font-size:12px;color:var(--text-dim);padding:12px;text-align:center;border:1px dashed var(--line);border-radius:6px}.palette-row{display:flex;flex-direction:column;gap:8px}@media (max-width: 768px){.palette-row{flex-direction:row}.palette-row>.palette-item{flex:1;min-width:0}}.palette-item{display:flex;align-items:center;gap:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:8px;padding:8px;cursor:grab;touch-action:none;user-select:none;-webkit-user-select:none;transition:border-color .1s ease,transform .1s ease}.palette-item:hover{border-color:var(--accent)}.palette-item:active{cursor:grabbing;transform:scale(.98)}.palette-item.is-disabled{opacity:.5;cursor:not-allowed}.palette-item__icon{width:44px;height:44px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.5);flex-shrink:0}.palette-item__meta{flex:1;min-width:0}.palette-item__label{font-weight:600;display:flex;align-items:center;gap:6px}.palette-item__size{font-size:11px;color:var(--text-dim);font-weight:400;border:1px solid var(--line);padding:1px 6px;border-radius:999px}.palette-item__subtitle{font-size:11px;color:var(--text-dim)}.range-row{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;font-size:12px}.range-row input[type=range]{width:100%;accent-color:var(--accent);min-height:32px}.user-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}.user-row{display:grid;grid-template-columns:28px 1fr auto auto auto;align-items:center;gap:6px;background:var(--bg-2);border:1px solid var(--line);border-radius:8px;padding:6px 8px}.user-row input[type=color]{width:28px;height:28px;border:0;background:transparent;padding:0;cursor:pointer}.user-row__name{background:transparent;border:0;color:var(--text);font:inherit;padding:4px;min-width:0;min-height:32px}.user-row__name:focus{background:var(--panel);outline:1px solid var(--accent);border-radius:4px}.user-row__count{font-size:11px;color:var(--text-dim);white-space:nowrap}.user-row__castle{background:var(--accent);border:0;color:#fff;padding:6px 10px;border-radius:6px;font-size:11px;font-weight:600;cursor:grab;touch-action:none;user-select:none;-webkit-user-select:none;white-space:nowrap;min-height:32px}.user-row__castle:active{cursor:grabbing;opacity:.85}.btn-primary{background:var(--accent);color:#0b1220;border:0;padding:8px 12px;border-radius:6px;font-weight:600;min-height:36px}.btn-primary:hover{background:#0ea5e9}.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text-dim);width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;padding:0}.btn-ghost:hover{color:var(--danger);border-color:var(--danger)}.btn-danger{background:transparent;border:1px solid var(--danger);color:var(--danger);padding:10px;border-radius:6px;font-weight:600;min-height:40px}.btn-danger:hover{background:var(--danger);color:#fff}.lang-switch{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden;flex-shrink:0}.lang-switch__btn{background:var(--bg-2);color:var(--text-dim);border:0;padding:6px 10px;font-size:11px;font-weight:600;border-right:1px solid var(--line);min-height:32px}.lang-switch__btn:last-child{border-right:0}.lang-switch__btn:hover{color:var(--text)}.lang-switch__btn.is-active{background:var(--accent);color:#0b1220}