*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #0a84ff;--primary-dark: #0066cc;--secondary: #ff375f;--bg: #0d0d0d;--surface: #1a1a1a;--surface-light: #242424;--text: #ffffff;--text-secondary: #a0a0a0;--border: #333333;--success: #30d158;--warning: #ffd60a}body{font-family:Outfit,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}header{background:var(--surface);border-bottom:1px solid var(--border);padding:1.5rem 2rem;position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.header-content{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;background:none;-webkit-background-clip:border-box;background-clip:border-box;-webkit-text-fill-color:initial}.app-name{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.coffee-btn{background:var(--warning);color:var(--bg);border:none;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s;font-family:Outfit,sans-serif;font-size:.95rem;display:flex;align-items:center;gap:.5rem}.coffee-btn:hover{background:#ffc700;transform:translateY(-2px);box-shadow:0 4px 12px #ffd60a4d}.container{max-width:1400px;margin:0 auto;padding:3rem 2rem;flex:1}.ad-space-text{font-family:JetBrains Mono,monospace;font-size:.9rem}.upload-section{background:var(--surface);border-radius:16px;padding:3rem;text-align:center;border:2px dashed var(--border);transition:all .3s;cursor:pointer;margin-bottom:2rem}.upload-section:hover{border-color:var(--primary);background:var(--surface-light)}.upload-section.dragover{border-color:var(--primary);background:var(--surface-light);transform:scale(1.02)}.upload-icon{width:80px;height:80px;margin:0 auto 1.5rem;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:2.5rem}.upload-section h2{font-size:1.75rem;margin-bottom:.5rem}.upload-section p{color:var(--text-secondary);font-size:1rem}input[type=file]{display:none}.editor-section{display:none;gap:2rem}.editor-section.active{display:grid;grid-template-columns:300px 1fr}.toolbar{background:var(--surface);border-radius:16px;padding:2rem;height:fit-content;position:sticky;top:100px}.toolbar h3{margin-bottom:1.5rem;font-size:1.25rem}.tool-group{margin-bottom:2rem}.tool-group label{display:block;margin-bottom:.5rem;color:var(--text-secondary);font-size:.9rem;font-weight:500}.tool-btn{width:100%;background:var(--surface-light);border:1px solid var(--border);color:var(--text);padding:1rem;border-radius:10px;font-weight:600;cursor:pointer;transition:all .2s;font-family:Outfit,sans-serif;font-size:1rem;margin-bottom:.75rem}.tool-btn:hover{background:var(--primary);border-color:var(--primary);transform:translate(4px)}.tool-btn.active{background:var(--primary);border-color:var(--primary)}.download-btn{width:100%;background:linear-gradient(135deg,var(--success),#28b848);border:none;color:#fff;padding:1.25rem;border-radius:10px;font-weight:700;cursor:pointer;transition:all .2s;font-family:Outfit,sans-serif;font-size:1.1rem;margin-top:1rem}.download-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #30d15866}.new-doc-btn{width:100%;background:var(--surface-light);border:1px solid var(--border);color:var(--text-secondary);padding:1rem;border-radius:10px;font-weight:600;cursor:pointer;transition:all .2s;font-family:Outfit,sans-serif;font-size:.95rem}.new-doc-btn:hover{border-color:var(--text-secondary);color:var(--text)}.canvas-container{background:var(--surface);border-radius:16px;padding:2rem;position:relative}.canvas-wrapper{background:#fff;border-radius:8px;box-shadow:0 10px 40px #00000080;position:relative;overflow:hidden;margin:0 auto;width:fit-content}#pdfCanvas{display:block}#previewCanvas{position:absolute;top:0;left:0;pointer-events:none;z-index:10;touch-action:none}.page-controls{display:flex;justify-content:center;align-items:center;gap:1rem;margin-bottom:1.5rem}.page-btn{background:var(--surface-light);border:1px solid var(--border);color:var(--text);padding:.5rem 1rem;border-radius:8px;cursor:pointer;transition:all .2s;font-family:Outfit,sans-serif;font-weight:600}.page-btn:hover:not(:disabled){background:var(--primary);border-color:var(--primary)}.page-btn:disabled{opacity:.3;cursor:not-allowed}.page-info{font-family:JetBrains Mono,monospace;color:var(--text-secondary);font-size:.95rem}.signature-modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;align-items:center;justify-content:center}.signature-modal.active{display:flex}.signature-content{background:var(--surface);border-radius:20px;padding:2rem;max-width:600px;width:90%}.signature-content h3{margin-bottom:1.5rem;font-size:1.5rem}#signatureCanvas{background:#fff;border-radius:12px;cursor:crosshair;display:block;margin-bottom:1.5rem;box-shadow:0 4px 12px #0000004d}.signature-controls{display:flex;gap:1rem}.signature-controls button{flex:1;padding:1rem;border:none;border-radius:10px;font-weight:600;cursor:pointer;font-family:Outfit,sans-serif;font-size:1rem;transition:all .2s}.clear-sig-btn{background:var(--surface-light);color:var(--text)}.clear-sig-btn:hover{background:var(--secondary)}.done-sig-btn{background:var(--primary);color:#fff}.done-sig-btn:hover{background:var(--primary-dark)}.text-modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;align-items:center;justify-content:center}.text-modal.active{display:flex}.text-content{background:var(--surface);border-radius:20px;padding:2rem;max-width:500px;width:90%}.text-content h3{margin-bottom:1.5rem;font-size:1.5rem}.text-content input{width:100%;background:var(--surface-light);border:1px solid var(--border);color:var(--text);padding:1rem;border-radius:10px;font-family:Outfit,sans-serif;font-size:1rem;margin-bottom:1.5rem}.text-content input:focus{outline:none;border-color:var(--primary)}.text-controls{display:flex;gap:1rem}.text-controls button{flex:1;padding:1rem;border:none;border-radius:10px;font-weight:600;cursor:pointer;font-family:Outfit,sans-serif;font-size:1rem;transition:all .2s}.cancel-text-btn{background:var(--surface-light);color:var(--text)}.cancel-text-btn:hover{background:var(--secondary)}.add-text-btn{background:var(--primary);color:#fff}.add-text-btn:hover{background:var(--primary-dark)}.instructions{background:var(--surface-light);border-left:4px solid var(--primary);padding:1rem;border-radius:8px;margin-bottom:1.5rem;color:var(--text-secondary);font-size:.9rem}footer{background:var(--surface);border-top:1px solid var(--border);padding:2rem;text-align:center;color:var(--text-secondary);font-size:.9rem}.loading{display:none;text-align:center;padding:2rem;color:var(--text-secondary)}.loading.active{display:block}.spinner{width:40px;height:40px;margin:0 auto 1rem;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 768px){.editor-section.active{grid-template-columns:1fr}.toolbar{position:static;margin-bottom:2rem}.container{padding:1.5rem 1rem}header{padding:1rem}}