*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;max-width:800px;margin:0 auto;padding:40px 20px;background:#f5f5f5;min-height:100vh}h1{color:#333;margin-bottom:8px}.subtitle{color:#666;margin-bottom:32px}.form-group{background:#fff;padding:24px;border-radius:8px;box-shadow:0 2px 4px #0000001a;margin-bottom:24px}label{display:block;font-weight:500;margin-bottom:8px;color:#333}.input-row{display:flex;gap:12px}input[type=url]{flex:1;padding:12px 16px;font-size:16px;border:2px solid #ddd;border-radius:6px;transition:border-color .2s}input[type=url]:focus{outline:none;border-color:#06c}button{background:#06c;color:#fff;border:none;padding:12px 24px;font-size:16px;border-radius:6px;cursor:pointer;transition:background .2s}button:hover{background:#0052a3}button:disabled{background:#999;cursor:not-allowed}.split-btn{position:relative;display:flex;flex-shrink:0}.split-btn #generate-btn{border-radius:6px 0 0 6px}.split-btn-toggle{padding:12px 10px;border-radius:0 6px 6px 0;border-left:1px solid rgba(255,255,255,.2);display:flex;align-items:center}.split-btn-menu{display:none;position:absolute;top:100%;right:0;margin-top:4px;background:#fff;border-radius:6px;box-shadow:0 4px 12px #00000026;overflow:hidden;z-index:10;min-width:100%}.split-btn-menu.open{display:block}.split-btn-menu button{width:100%;background:#fff;color:#333;padding:10px 16px;font-size:14px;border-radius:0;text-align:left;white-space:nowrap}.split-btn-menu button:hover{background:#f0f0f0}.divider{border:none;border-top:1px solid #eee;margin:16px 0}.preset-row{display:flex;gap:8px;margin-bottom:16px}.preset-row select{flex:1;padding:8px 12px;font-size:14px;border:2px solid #ddd;border-radius:6px;background:#fff;color:#333;cursor:pointer}.preset-row select:focus{outline:none;border-color:#06c}#clear-options-btn{background:#eee;color:#333;padding:8px 16px;font-size:14px}#clear-options-btn:hover{background:#ddd}.status{padding:16px;border-radius:6px;margin-bottom:24px;display:none}.status.loading{display:block;background:#e3f2fd;color:#1565c0}.status.error{display:block;background:#ffebee;color:#c62828}.status.success{display:block;background:#e8f5e9;color:#2e7d32}.download-btn{background:#28a745;margin-left:12px;padding:8px 16px;font-size:14px;vertical-align:middle}.download-btn:hover{background:#218838}.pdf-viewer{width:100%;height:80vh;border:1px solid #ddd;border-radius:6px;background:#fff;display:none}.pdf-viewer.visible{display:block}.advanced{margin-bottom:24px}.advanced summary{cursor:pointer;color:#666;font-size:14px;padding:8px 0;-webkit-user-select:none;user-select:none}.advanced summary:hover{color:#333}.advanced-content{padding:16px;background:#fff;border-radius:8px;box-shadow:0 2px 4px #0000001a;margin-top:8px}.toggle-label{display:flex;align-items:center;gap:8px;font-weight:400;cursor:pointer;color:#333}.toggle-label input[type=checkbox]{width:16px;height:16px}.toggle-hint{color:#999;font-size:13px}.panel-overlay{margin-bottom:16px}.panel-overlay h3{font-size:14px;margin:0 0 4px;color:#333}.panel-overlay>.toggle-hint{margin-bottom:12px;display:block}.panel-url-row{margin-top:10px}.panel-url-row input[type=url]{width:100%;padding:8px 12px;font-size:14px}.panel-url-row input[type=url]:disabled{opacity:.4;cursor:not-allowed}.color-overrides{display:flex;flex-direction:column;gap:8px}.toggle-label input[type=color]{margin-left:auto;width:32px;height:28px;border:1px solid #ddd;border-radius:4px;padding:2px;cursor:pointer}.toggle-label input[type=color]:disabled{opacity:.4;cursor:not-allowed}.spinner{display:inline-block;width:16px;height:16px;border:2px solid #1565c0;border-top-color:transparent;border-radius:50%;animation:spin 1s linear infinite;margin-right:8px;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}