:root{--obsidian: #0b0e14;--obsidian-2: #11151f;--panel: #161b28;--panel-2: #1c2333;--line: #2a3247;--electric: #3d8bff;--pink: #ff3d8b;--coral: #ff6b4a;--gold: #f5c542;--text: #e8ecf5;--muted: #93a0b8;--ok: #39d98a;--err: #ff5c5c}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:radial-gradient(1200px 700px at 80% -10%,rgba(61,139,255,.14),transparent 60%),radial-gradient(900px 600px at -10% 110%,rgba(255,61,139,.1),transparent 60%),var(--obsidian);color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif;display:flex;flex-direction:column;min-height:100vh}.hidden{display:none!important}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 20px;background:#0d111ad9;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:sticky;top:0;z-index:50}.brand{display:flex;align-items:baseline;gap:10px}.brand .star{color:var(--gold);font-size:22px;text-shadow:0 0 12px rgba(245,197,66,.8)}.brand-name{font-weight:800;font-size:19px;letter-spacing:.5px;background:linear-gradient(90deg,var(--electric),var(--pink),var(--coral));-webkit-background-clip:text;background-clip:text;color:transparent}.brand-name .star-2{color:var(--gold);-webkit-text-fill-color:var(--gold)}.brand-sub{font-size:14px;color:var(--muted);border-left:1px solid var(--line);padding-left:10px}.topbar-right{display:flex;align-items:center;gap:16px}.local-badge{font-size:11px;letter-spacing:.4px;color:var(--ok);border:1px solid rgba(57,217,138,.35);border-radius:999px;padding:3px 10px;background:#39d98a14}.contact{color:var(--electric);text-decoration:none;font-size:13px}.contact:hover{text-decoration:underline;color:var(--pink)}main{flex:1;display:flex;flex-direction:column;padding:18px 20px 12px;gap:14px;min-height:0}.load-panel{display:flex;flex-direction:column;gap:14px}.viewer-panel{display:flex;flex-direction:column;flex:1;min-height:0;gap:10px}.drop-zone{border:2px dashed var(--line);border-radius:16px;background:linear-gradient(160deg,#3d8bff0f,#ff3d8b0d);padding:48px 24px;text-align:center;transition:border-color .2s,background .2s;flex:1;display:flex;align-items:center;justify-content:center}.drop-zone.drag-over{border-color:var(--pink);background:linear-gradient(160deg,#3d8bff24,#ff3d8b24);box-shadow:inset 0 0 40px #ff3d8b1f}.drop-inner{display:flex;flex-direction:column;align-items:center;gap:12px}.drop-icon{font-size:44px;filter:drop-shadow(0 0 14px rgba(61,139,255,.6))}.drop-zone h1{font-size:24px;font-weight:700;background:linear-gradient(90deg,var(--electric),var(--pink));-webkit-background-clip:text;background-clip:text;color:transparent}.drop-hint{color:var(--muted);font-size:13px}.sample-row{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;margin-top:10px}.btn{display:inline-block;border:none;cursor:pointer;border-radius:999px;font-size:13px;font-weight:600;padding:9px 20px;transition:transform .12s,box-shadow .12s,background .12s;font-family:inherit}.btn:hover{transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-primary{background:linear-gradient(90deg,var(--electric),var(--pink));color:#fff;box-shadow:0 4px 18px #3d8bff59}.btn-primary:hover{box-shadow:0 6px 24px #ff3d8b66}.btn-ghost{background:transparent;color:var(--electric);border:1px solid rgba(61,139,255,.5)}.btn-ghost:hover{background:#3d8bff1f}.file-list{list-style:none;display:flex;flex-direction:column;gap:6px;max-height:170px;overflow:auto;padding:10px;background:var(--panel);border:1px solid var(--line);border-radius:12px}.file-list li{display:flex;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--text);padding:6px 10px;background:var(--panel-2);border-radius:8px;border-left:3px solid var(--electric)}.file-list li .fname{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-list li .fmeta{color:var(--muted);flex-shrink:0}.file-list.compact{max-height:34px;flex-direction:row;overflow-x:auto;overflow-y:hidden}.file-list.compact li{flex:0 0 auto;min-width:260px}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:8px 10px}.tool-group{display:flex;gap:6px;flex-wrap:wrap}.tool-btn{border:1px solid var(--line);background:var(--panel-2);color:var(--text);border-radius:8px;font-size:12.5px;font-weight:600;padding:7px 13px;cursor:pointer;transition:all .12s;font-family:inherit}.tool-btn:hover{border-color:var(--electric);color:#fff}.tool-btn.active{background:linear-gradient(90deg,var(--electric),var(--pink));border-color:transparent;color:#fff;box-shadow:0 2px 12px #3d8bff59}.tool-btn.active:hover{border-color:transparent}.viewport-wrap{position:relative;flex:1;min-height:380px;background:#05070c;border:1px solid var(--line);border-radius:12px;overflow:hidden}.viewport{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.viewport canvas{display:block}.empty-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px;letter-spacing:1px;background:#05070c99;pointer-events:none;transition:opacity .25s}.statusbar{display:flex;gap:18px;flex-wrap:wrap;padding:8px 14px;background:var(--panel);border:1px solid var(--line);border-radius:12px;font-size:12.5px;color:var(--muted);min-height:36px;align-items:center}.statusbar span strong{color:var(--text);font-weight:600}.statusbar .sep{opacity:.4}.footer{display:flex;align-items:center;justify-content:center;gap:14px;padding:10px 20px 14px;color:var(--muted);font-size:12px;border-top:1px solid rgba(42,50,71,.5)}.footer strong{color:var(--text)}.footer a{color:var(--electric);text-decoration:none}.footer a:hover{text-decoration:underline}.footer-note{opacity:.6}.toast{position:fixed;bottom:70px;left:50%;transform:translate(-50%);background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:10px 18px;font-size:13px;color:var(--text);box-shadow:0 8px 30px #00000080;z-index:100;max-width:80vw}.toast.err{border-color:var(--err);color:var(--err)}.toast.ok{border-color:var(--ok);color:var(--ok)}