*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:#f5f5f5;color:#333;line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:linear-gradient(135deg,#1a3a5c,#0d2137);color:#fff;padding:1rem 2rem;box-shadow:0 2px 10px #0000001a}.header-content{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.logo h1{font-size:1.8rem;font-weight:700}.tagline{font-size:.9rem;opacity:.9}.nav{display:flex;gap:2rem}.nav-link{color:#fff;text-decoration:none;font-weight:500;transition:opacity .2s}.nav-link:hover{opacity:.8}.menu-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}.main-content{flex:1;display:flex;max-width:1400px;margin:0 auto;width:100%;padding:2rem;gap:2rem}.sidebar{width:350px;flex-shrink:0}.content{flex:1;display:flex;flex-direction:column;gap:2rem}.control-panel{background:#fff;border-radius:12px;box-shadow:0 2px 10px #0000000d;overflow:hidden}.panel-section{border-bottom:1px solid #eee}.panel-section:last-child{border-bottom:none}.section-header{display:flex;align-items:center;gap:.5rem;padding:1rem 1.5rem;cursor:pointer;font-weight:600;color:#444;transition:background-color .2s}.section-header:hover{background-color:#f8f9fa}.section-header span{flex:1}.section-content{padding:0 1.5rem 1.5rem}.templates-section{padding:1rem 1.5rem;background:#f8f9fa}.templates-section h3{margin-bottom:1rem;color:#666;font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}.templates-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.5rem}.template-btn{padding:.5rem;border:1px solid #ddd;border-radius:6px;background:#fff;cursor:pointer;font-size:.85rem;transition:all .2s}.template-btn:hover{border-color:#1a3a5c;color:#1a3a5c}.input-group{margin-bottom:1rem}.input-group:last-child{margin-bottom:0}.input-group label{display:block;margin-bottom:.5rem;font-weight:500;color:#555;font-size:.9rem}.select-input,.text-input,.number-input{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:6px;font-size:.95rem;transition:border-color .2s}.select-input:focus,.text-input:focus,.number-input:focus{outline:none;border-color:#1a3a5c}.color-picker-wrapper{display:flex;align-items:center;gap:.75rem}.color-input{width:50px;height:35px;padding:2px;border:1px solid #ddd;border-radius:4px;cursor:pointer}.color-value{font-family:monospace;color:#666;font-size:.9rem}.range-input{width:100%;height:6px;border-radius:3px;background:#ddd;outline:none;-webkit-appearance:none}.range-input::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:#1a3a5c;cursor:pointer}.range-value{display:block;margin-top:.5rem;font-size:.85rem;color:#666;text-align:right}.margin-inputs{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.custom-size-inputs{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:1rem}.checkbox-group label{display:flex;align-items:center;gap:.5rem;cursor:pointer}.checkbox-group input[type=checkbox]{width:18px;height:18px;cursor:pointer}.themes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem}.theme-btn{padding:.5rem;border:2px solid #ddd;border-radius:8px;cursor:pointer;transition:all .2s;display:flex;flex-direction:column;align-items:center;gap:.25rem}.theme-btn.active{border-color:#1a3a5c}.theme-preview{width:100%;height:20px;border:1px solid #ccc;border-radius:4px}.theme-name{font-size:.75rem;color:#666}.paper-preview{background:#fff;border-radius:12px;box-shadow:0 2px 10px #0000000d;padding:2rem}.preview-container{display:flex;justify-content:center;align-items:center;min-height:400px;background:#f0f0f0;border-radius:8px;padding:2rem}.paper-canvas{background:#fff}.preview-info{display:flex;justify-content:space-between;margin-top:1rem;padding-top:1rem;border-top:1px solid #eee;font-size:.9rem;color:#666}.export-panel{background:#fff;border-radius:12px;box-shadow:0 2px 10px #0000000d;padding:1.5rem}.export-panel h3{margin-bottom:1rem;color:#444}.export-buttons{display:flex;gap:1rem}.export-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:.5rem;padding:1rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.export-btn.pdf{background:#e74c3c;color:#fff}.export-btn.svg{background:#3498db;color:#fff}.export-btn.png{background:#2ecc71;color:#fff}.export-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.export-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.loading-indicator{display:flex;align-items:center;justify-content:center;gap:.75rem;margin-top:1rem;color:#666}.spinner{width:20px;height:20px;border:2px solid #ddd;border-top-color:#1a3a5c;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 1024px){.main-content{flex-direction:column}.sidebar{width:100%}}@media (max-width: 768px){.header-content{flex-direction:column;gap:1rem}.nav{display:none}.nav.open{display:flex;flex-direction:column;gap:1rem}.menu-toggle{display:block}.export-buttons{flex-direction:column}.margin-inputs,.custom-size-inputs{grid-template-columns:1fr}}