:root{--bg:#0b0f14;--panel:#121a24;--text:#e7eef8;--muted:#9fb3c8;--accent:#52d1ff;--danger:#ff4d6d;--ok:#2ee59d}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Arial;background:var(--bg);color:var(--text)}#app{min-height:100%;display:flex;flex-direction:column}header{padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid rgba(255,255,255,.06)}header .title{font-weight:700;letter-spacing:.2px}header .meta{color:var(--muted);font-size:12px}main{padding:12px 12px 96px}.controls{position:fixed;left:0;right:0;bottom:0;padding:10px 12px;background:linear-gradient(180deg,#0b0f1400,#0b0f14d9 30%,#0b0f14f2);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.controls .row{display:flex;gap:10px}button{flex:1;border:1px solid rgba(255,255,255,.12);background:#121a24cc;color:var(--text);padding:12px 10px;border-radius:12px;font-weight:650}button.primary{border-color:#52d1ff59;box-shadow:0 0 0 1px #52d1ff26 inset}button.danger{border-color:#ff4d6d59}button:active{transform:translateY(1px)}.toggle{flex:0 0 auto;display:flex;align-items:center;gap:8px;padding:12px}.toggle input{transform:scale(1.2)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.card{position:relative;border-radius:14px;overflow:hidden;background:var(--panel);border:1px solid rgba(255,255,255,.08)}.card canvas{display:block;width:100%;height:auto;aspect-ratio:1/1;image-rendering:pixelated}.badges{position:absolute;left:8px;top:8px;display:flex;gap:6px}.badge{font-size:11px;padding:4px 7px;border-radius:999px;background:#00000073;border:1px solid rgba(255,255,255,.18)}.badge.sel{border-color:#52d1ff99}.badge.lock{border-color:#ffd7008c}.footerNote{color:var(--muted);font-size:12px;margin-top:10px;line-height:1.35}#preview{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000c7;display:none;align-items:center;justify-content:center;padding:18px;z-index:20}#preview.open{display:flex}#preview .sheet{width:min(92vw,720px);background:#121a24f5;border:1px solid rgba(255,255,255,.12);border-radius:16px;overflow:hidden}#preview .top{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;border-bottom:1px solid rgba(255,255,255,.08)}#preview .top .small{font-size:12px;color:var(--muted)}#preview .big{padding:12px}#preview .big canvas{width:100%;height:auto;aspect-ratio:1/1;image-rendering:auto;border-radius:12px}#preview .actions{display:flex;gap:10px;padding:12px}#preview .actions button{flex:1}