:root{--cyan: #00a8b8;--purple: #8b3ddb;--gold: #d99500;--bg: #f5f7fa;--panel: #ffffff;--border: #e2e8f0;--text: #1a202c;--muted: #718096;font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{background:var(--panel);padding:32px;border-radius:16px;box-shadow:0 4px 24px #00000014;width:320px;display:flex;flex-direction:column;gap:16px}.login-title{margin:0 0 8px;font-size:20px;text-align:center;color:var(--cyan)}.app-shell{display:flex;min-height:100vh}.sidebar{width:200px;background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:20px 12px}.sidebar-brand{font-weight:700;font-size:18px;color:var(--cyan);padding:8px 12px 20px}.sidebar-nav{display:flex;flex-direction:column;gap:4px;flex:1}.nav-link{padding:10px 12px;border-radius:8px;text-decoration:none;color:var(--text);font-size:14px}.nav-link:hover{background:var(--bg)}.nav-link.active{background:var(--cyan);color:#fff}.btn-logout{margin-top:12px;padding:10px;border:1px solid var(--border);background:transparent;border-radius:8px;cursor:pointer;color:var(--muted)}.content{flex:1;padding:32px;overflow:auto}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.page-title{margin:0;font-size:22px}.muted{color:var(--muted)}.field{display:flex;flex-direction:column;gap:6px;font-size:13px}.field input,.field select{padding:9px 10px;border:1px solid var(--border);border-radius:8px;font-size:14px}.error-text{color:#e53e3e;font-size:13px;margin:4px 0 0}.success-text{color:#1a8a5a;font-size:13px;margin:4px 0 0}.header-actions{display:flex;gap:10px}.toolbar{display:flex;align-items:center;gap:12px;margin-bottom:16px}.filter{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.filter select{padding:7px 10px;border:1px solid var(--border);border-radius:8px;font-size:14px}.btn-primary{background:var(--cyan);color:#fff;border:none;padding:10px 16px;border-radius:8px;cursor:pointer;font-size:14px}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:transparent;color:var(--text);border:1px solid var(--border);padding:10px 16px;border-radius:8px;cursor:pointer;font-size:14px}.btn-sm{padding:5px 10px;font-size:12px;border:1px solid var(--border);background:var(--panel);border-radius:6px;cursor:pointer;margin-right:4px}.btn-sm.btn-danger{color:#e53e3e;border-color:#e53e3e55}.btn-sm.btn-danger:disabled{opacity:.6;cursor:not-allowed}.data-table{width:100%;border-collapse:collapse;background:var(--panel);border-radius:12px;overflow:hidden;font-size:13px}.data-table th,.data-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}.data-table th{background:#fafbfc;color:var(--muted);font-weight:600}.row-inactive{opacity:.5}.thumb{width:40px;height:40px;object-fit:contain;image-rendering:pixelated}.actions{white-space:nowrap}.grade{padding:2px 8px;border-radius:6px;font-size:11px;font-weight:700;color:#fff}.grade-N{background:#a0aec0}.grade-R{background:var(--cyan)}.grade-SR{background:var(--purple)}.grade-SSR{background:var(--gold)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--panel);padding:28px;border-radius:16px;width:420px;max-height:90vh;overflow:auto;display:flex;flex-direction:column;gap:14px}.modal-wide{width:640px}.modal-title{margin:0;font-size:18px}.drop-grade-rates{padding:12px;border:1px solid var(--border);border-radius:10px;margin:8px 0 4px}.drop-rate-inputs{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:8px}.drop-rate-field{display:flex;align-items:center;gap:6px;font-size:13px}.drop-rate-field input{padding:6px 8px;border:1px solid var(--border);border-radius:6px}.drop-grade-section{border-top:1px solid var(--border);padding:12px 0 4px}.drop-grade-header{display:flex;align-items:center;gap:10px;margin-bottom:6px}.drop-add-select{margin-top:8px;padding:7px 10px;border:1px solid var(--border);border-radius:8px;font-size:13px;background:var(--panel)}.badge{padding:2px 8px;border-radius:6px;font-size:11px;font-weight:700;color:#fff}.badge-added{background:#1a8a5a}.badge-changed{background:var(--gold)}.preview{width:80px;height:80px;object-fit:contain;image-rendering:pixelated;align-self:flex-start;border:1px solid var(--border);border-radius:8px}.checks{display:flex;gap:18px;flex-wrap:wrap}.check{display:flex;align-items:center;gap:6px;font-size:13px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}.tabs{display:flex;gap:6px;margin-bottom:16px;flex-wrap:wrap}.tab{padding:7px 14px;border-radius:8px;border:none;background:var(--panel);box-shadow:0 1px 3px #00000014;cursor:pointer;font-size:13px;color:var(--muted)}.tab.active{background:var(--cyan);color:#fff}.upload-panel{display:flex;align-items:center;gap:14px;background:var(--panel);padding:14px 16px;border-radius:12px;margin-bottom:16px;flex-wrap:wrap;box-shadow:0 1px 4px #0000000f}.pending-bar{display:flex;align-items:center;gap:14px;background:#fff8e6;padding:12px 16px;border-radius:12px;margin-bottom:16px;flex-wrap:wrap;font-size:13px;box-shadow:0 1px 4px #0000000f}.asset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px}.asset-card{position:relative;background:var(--panel);border-radius:12px;padding:12px;display:flex;flex-direction:column;gap:8px;box-shadow:0 1px 4px #0000000f}.asset-check{position:absolute;top:10px;left:10px;background:#ffffffe6;border-radius:6px;padding:3px;z-index:1}.asset-thumb{width:100%;height:110px;object-fit:contain;image-rendering:pixelated;background:var(--bg);border-radius:8px}.asset-card-clickable{cursor:pointer;border:none;text-align:left;font:inherit;color:inherit}.asset-card-clickable:hover{box-shadow:0 3px 10px #00000024}.asset-name{font-size:12px;font-weight:600;word-break:break-all}.asset-meta{font-size:11px;color:var(--muted)}.asset-badges{display:flex;gap:4px;flex-wrap:wrap}.badge-use{background:#e0f2f4;color:#0b7c89}.badge-unused{background:#edf2f7;color:var(--muted)}.badge-pending{background:#e53e3e}