:root{--primary: #4a85c8;--primary-dark: #36699f;--primary-soft: #e8f0f9;--bg: #f0f4f8;--accent-green: #2e7d32;--accent-orange: #e65100;--accent-purple: #7b1fa2;--danger: #d32f2f;--surface: #ffffff;--light-gray: #f5f5f5;--text: #333333;--text-gray: #5f6368;--text-muted: #999999;--border-gray: #e0e0e0;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .05);--shadow-md: 0 4px 16px rgba(0, 0, 0, .05);--shadow-lg: 0 6px 20px rgba(0, 0, 0, .12);--font: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", "Malgun Gothic", sans-serif}*,*:before,*:after{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;padding:0;font-family:var(--font);background:var(--bg);color:var(--text);-webkit-text-size-adjust:100%}button{font-family:inherit}label{font-size:.85rem;color:var(--text-gray);display:block;margin-bottom:4px}textarea,input[type=text],select{width:100%;padding:8px 10px;border:1px solid #ddd;border-radius:var(--radius-sm);font-family:var(--font);font-size:.95rem;background:var(--surface);color:var(--text);resize:none}textarea:focus,input[type=text]:focus,select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #4a85c826}textarea{min-height:42px;line-height:1.5;overflow:hidden}.fixed-field{background:#eee;color:#555;pointer-events:none}.card{background:var(--surface);border-radius:var(--radius-lg);padding:22px 24px;margin-bottom:18px;box-shadow:var(--shadow-sm);border:1px solid var(--border-gray)}.section-title{font-size:1.05rem;font-weight:700;color:var(--primary);margin-bottom:14px;border-bottom:2px solid #f0f0f0;padding-bottom:7px;display:flex;align-items:center;justify-content:space-between;gap:8px}.section-title .left-title{display:flex;align-items:center;gap:6px}.btn{background:var(--surface);border:1px solid var(--border-gray);color:var(--text-gray);padding:6px 12px;border-radius:18px;font-size:.8rem;font-weight:500;display:inline-flex;align-items:center;gap:6px;cursor:pointer;transition:background-color .2s,border-color .2s;white-space:nowrap}.btn:hover:not(:disabled){background:var(--light-gray)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn .material-icons{font-size:16px}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-green{background:#e6f4ea;border-color:#ceead6;color:var(--accent-green)}.btn-orange{background:#fff3e0;border-color:#ffecb3;color:var(--accent-orange)}.btn-danger{background:#ffebee;border-color:#ffcdd2;color:var(--danger)}.tiny-ai-btn{background:var(--surface);border:1px solid #a8c9ec;color:#1e88e5;padding:2px 8px;border-radius:10px;font-size:.75rem;font-weight:600;cursor:pointer;margin-left:8px}.tiny-ai-btn:hover:not(:disabled){background:#e3f2fd}.tiny-ai-btn:disabled{opacity:.5;cursor:not-allowed}.badge{display:inline-block;padding:4px 10px;border-radius:12px;font-size:.75rem;font-weight:700;background:var(--light-gray);color:var(--text-gray);white-space:nowrap}.badge-essay{background:#e3f2fd;color:#1565c0}.badge-perf{background:#f3e5f5;color:#6a1b9a}.badge-level{background:#e1bee7;color:var(--accent-purple)}.badge-stage{background:#bbdefb;color:#1565c0}.badge-grade{background:#ffe0b2;color:var(--accent-orange)}.modal-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:2000;align-items:center;justify-content:center;padding:20px}.modal-overlay.show{display:flex}.modal-box{background:var(--surface);width:100%;max-width:700px;max-height:85vh;border-radius:var(--radius-lg);padding:24px;display:flex;flex-direction:column}.modal-header{display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--primary);margin-bottom:12px;font-size:1.1rem}.modal-header .material-icons{cursor:pointer;color:var(--text-muted)}.modal-body{flex:1;overflow-y:auto;background:#f9f9f9;padding:15px;border-radius:var(--radius-sm);font-size:.9rem;line-height:1.7}.modal-footer{display:flex;justify-content:flex-end;gap:8px;margin-top:15px}#loading-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#ffffffeb;z-index:3000;align-items:center;justify-content:center;flex-direction:column;gap:10px}#loading-overlay.show{display:flex}.spinner{border:4px solid #f3f3f3;border-top-color:var(--primary);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-16px)}to{opacity:1;transform:none}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}