:root{--bg: #0a0a0a;--surface: #141414;--surface-hover: #1a1a1a;--border: #2a2a2a;--border-hover: #3a3a3a;--text: #f5f5f5;--text-secondary: #888888;--text-muted: #555555;--accent: #ffffff;--accent-dim: #cccccc;--danger: #ff4444;--success: #34d399;--radius: 12px;--radius-lg: 20px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;align-items:center;justify-content:center}#app{width:100%;max-width:520px;padding:24px}.shell{display:flex;flex-direction:column;gap:20px}.hero{text-align:center;padding:0 4px}.hero h1{font-size:2rem;font-weight:600;letter-spacing:-.5px;color:var(--text)}.hero p{font-size:.875rem;color:var(--text-secondary);margin-top:6px;line-height:1.5}.badge{display:inline-block;font-size:.7rem;font-weight:500;letter-spacing:.6px;text-transform:uppercase;color:var(--text-muted);border:1px solid var(--border);border-radius:999px;padding:4px 12px;margin-bottom:12px}.upload-zone{position:relative;border:2px dashed var(--border);border-radius:var(--radius-lg);padding:48px 24px;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;background:var(--surface)}.upload-zone:hover,.upload-zone.dragover{border-color:var(--accent);background:var(--surface-hover)}.upload-zone.has-file{border-style:solid;border-color:var(--border-hover)}.upload-zone-icon{width:40px;height:40px;margin:0 auto 16px;color:var(--text-muted)}.upload-zone-title{font-size:.95rem;font-weight:500;color:var(--text);margin-bottom:4px}.upload-zone-hint{font-size:.8rem;color:var(--text-muted)}.upload-zone input[type=file]{display:none}.file-info{margin-top:16px;display:flex;align-items:center;justify-content:center;gap:8px;font-size:.85rem;color:var(--text-secondary);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:10px 16px}.file-info .file-name{font-weight:500;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:240px}.file-info .file-size{color:var(--text-muted);flex-shrink:0}.file-info .remove-file{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1.1rem;padding:2px 4px;line-height:1;flex-shrink:0;transition:color .15s}.file-info .remove-file:hover{color:var(--danger)}.options-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.option-label{display:flex;flex-direction:column;gap:6px}.option-label span{font-size:.75rem;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.option-label input{appearance:none;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;color:var(--text);font-size:.9rem;font-family:inherit;transition:border-color .15s}.option-label input:focus{outline:none;border-color:var(--text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;appearance:none;border:1px solid var(--border);border-radius:var(--radius);padding:12px 20px;font-size:.9rem;font-weight:500;font-family:inherit;cursor:pointer;transition:background .15s,border-color .15s,color .15s;width:100%}.btn-primary{background:var(--text);color:var(--bg);border-color:var(--text)}.btn-primary:hover{background:var(--accent-dim);border-color:var(--accent-dim)}.btn-primary:disabled{background:var(--border);border-color:var(--border);color:var(--text-muted);cursor:not-allowed}.btn-secondary{background:var(--surface);color:var(--text)}.btn-secondary:hover{background:var(--surface-hover);border-color:var(--border-hover)}.progress-bar{width:100%;height:3px;background:var(--border);border-radius:99px;overflow:hidden;margin-top:12px}.progress-bar-fill{height:100%;background:var(--success);border-radius:99px;transition:width .2s ease}.status-text{font-size:.8rem;color:var(--text-secondary);text-align:center;margin-top:8px}.result{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;text-align:center}.result-title{font-size:.8rem;font-weight:500;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted);margin-bottom:16px}.result-actions{display:flex;gap:10px;margin-top:20px}.result-actions .btn{flex:1}.qr-wrapper{display:inline-block;background:#fff;padding:12px;border-radius:var(--radius);margin:8px 0}.qr-wrapper canvas,.qr-wrapper img{display:block}.copy-feedback{font-size:.8rem;color:var(--success);margin-top:8px;opacity:0;transition:opacity .2s}.copy-feedback.visible{opacity:1}.policy-hint{font-size:.75rem;color:var(--text-muted);text-align:center;padding:4px 0}.download-panel{text-align:center}.download-meta{font-size:.85rem;color:var(--text-secondary);margin:12px 0;line-height:1.7}.download-meta strong{color:var(--text)}.download-meta .danger{color:var(--danger);font-weight:500}.modal-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .15s ease}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;max-width:400px;width:calc(100vw - 48px);animation:slideUp .2s ease}.modal-title{font-size:1rem;font-weight:600;color:var(--text);margin-bottom:8px}.modal-body{font-size:.875rem;color:var(--text-secondary);line-height:1.6;margin-bottom:20px}.modal-actions{display:flex;gap:10px;justify-content:flex-end}.modal-actions .btn{width:auto;padding:8px 20px;font-size:.85rem}.modal-actions .btn-danger{background:transparent;color:var(--danger);border-color:var(--danger)}.modal-actions .btn-danger:hover{background:var(--danger);color:var(--text)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.toast{position:fixed;bottom:24px;left:50%;margin-left:auto;margin-right:auto;transform:translate(-50%);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:10px 20px;font-size:.85rem;color:var(--text);z-index:1100;animation:toastSlideUp .2s ease,fadeOut .3s ease 2s forwards;pointer-events:none}@keyframes toastSlideUp{0%{opacity:0;transform:translate(-50%) translateY(8px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}.mode-toggle{display:flex;gap:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.mode-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;font-size:.85rem;font-weight:500;font-family:inherit;color:var(--text-muted);background:transparent;border:none;cursor:pointer;transition:background .15s,color .15s}.mode-btn:hover{color:var(--text);background:var(--surface-hover)}.mode-btn.active{color:var(--text);background:var(--border)}.text-input-area{display:flex;flex-direction:column;align-items:center}.text-content-input{appearance:none;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;color:var(--text);font-size:.9rem;font-family:SF Mono,Cascadia Code,Fira Code,monospace;line-height:1.6;resize:vertical;min-height:160px;width:100%;transition:border-color .15s}.text-content-input:focus{outline:none;border-color:var(--text-muted)}.text-content-input::placeholder{color:var(--text-muted)}.text-display{margin-top:20px;text-align:left}.text-display-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.text-display-label{font-size:.75rem;font-weight:500;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted)}.text-content{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;font-size:.875rem;font-family:SF Mono,Cascadia Code,Fira Code,monospace;line-height:1.6;color:var(--text);white-space:pre-wrap;word-break:break-word;max-height:400px;overflow-y:auto;margin:0}