:root{--bg: #1e1e1e;--bg-panel: #2b2b2b;--bg-elev: #353535;--text: #e0e0e0;--text-muted: #999;--border: #444;--accent: #2da64e;--accent-text: #fff;--toast-bg: #4a90d9;--toast-error-bg: #c0392b}*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Hiragino Sans,Yu Gothic UI,sans-serif;overscroll-behavior:none}#app{display:flex;flex-direction:column;min-height:100dvh;padding-bottom:calc(16px + env(safe-area-inset-bottom))}#app-header{padding:12px 16px;border-bottom:1px solid var(--border)}#app-header h1{margin:0;font-size:1.1rem;font-weight:600}#app-header h1 .for-web{color:var(--accent);font-weight:700}.app-tagline{margin:2px 0 0;font-size:.8rem;color:var(--text-muted)}#dropzone{margin:16px;padding:28px 16px;border:2px dashed var(--border);border-radius:12px;text-align:center}#dropzone.dragover{border-color:var(--accent);background:#2da64e1a}.dropzone-hint{margin:0 0 12px;color:var(--text-muted)}.file-button{display:inline-block;padding:10px 20px;background:var(--accent);color:var(--accent-text);border-radius:8px;cursor:pointer;font-weight:600}.status{margin:12px 0 0;color:var(--text-muted);font-size:.9rem;white-space:pre-wrap}#results{flex:1 1 auto;display:flex;flex-direction:column;gap:16px;padding:0 16px}.output-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;padding:12px}.output-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}.output-head h2{margin:0;font-size:1rem;flex:1 1 auto}.toggle{display:inline-flex;align-items:center;gap:6px;cursor:pointer;white-space:nowrap}.link-btn{background:none;border:none;color:var(--accent);cursor:pointer;font-size:.9rem;padding:0;white-space:nowrap}#text-area{width:100%;min-height:40dvh;resize:vertical;background:var(--bg-elev);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9rem;line-height:1.5}.piece-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:8px;padding:10px 12px;margin-bottom:10px}.piece-card .piece-title{font-weight:600}.piece-card .piece-actions{display:flex;gap:8px;margin-top:8px}.muted{color:var(--text-muted)}.small{font-size:.85rem;margin:0}.card-actions{display:flex;gap:8px;margin-top:10px}button{flex:1 1 0;padding:12px;border:1px solid var(--border);border-radius:8px;background:var(--bg-elev);color:var(--text);font-size:1rem;cursor:pointer;white-space:nowrap;transition:transform .06s ease,opacity .06s ease,filter .06s ease}button:active{transform:scale(.97);filter:brightness(1.15)}button.primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent);font-weight:600}.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translate(-50%,12px);max-width:calc(100vw - 32px);padding:10px 18px;border-radius:999px;background:var(--toast-bg);color:var(--accent-text);font-weight:600;font-size:.95rem;white-space:nowrap;box-shadow:0 4px 16px #0006;opacity:0;transition:opacity .18s ease,transform .18s ease;pointer-events:none;z-index:1000}.toast.show{opacity:1;transform:translate(-50%)}.toast[data-kind=error]{background:var(--toast-error-bg)}.modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#0009;padding:16px}.modal-panel{background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;padding:16px;width:100%;max-width:480px}.modal-actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}.brace-entry-row{display:flex;align-items:center;gap:6px;margin-bottom:8px}.brace-entry-prefix{flex:1 1 auto;min-width:0}.brace-entry-row input{background:var(--bg-elev);color:var(--text);border:1px solid var(--border);border-radius:6px;padding:6px 8px;font-size:.95rem}.brace-entry-digit{width:56px}.brace-entry-label{color:var(--text-muted);font-size:.85rem;white-space:nowrap}.brace-entry-remove{flex:0 0 auto;width:36px;padding:6px}