:root{--accent:#2f2178;--accent-light:#efeaf8;--accent-dark:#211554;--ink:#1d1d1f;--gray:#6e6e73;--gray-light:#f5f5f7;--border:#e3e3e6;--danger:#c0392b;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:#fafafb;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Pretendard,Apple SD Gothic Neo,Malgun Gothic,sans-serif}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer}.shell{display:flex;min-height:100vh}.sidebar{width:240px;flex-shrink:0;background:#fff;border-right:1px solid var(--border);padding:24px 16px;position:-webkit-sticky;position:sticky;top:0;height:100vh}.brand{font-weight:800;font-size:20px;color:var(--accent);letter-spacing:-.02em;margin-bottom:4px}.brand-sub{font-size:12px;color:var(--gray);margin-bottom:28px}.nav-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius);font-size:14px;font-weight:500;color:var(--ink);margin-bottom:4px}.nav-link.active{background:var(--accent-light);color:var(--accent)}.nav-link:hover:not(.active){background:var(--gray-light)}.main{flex:1 1;padding:32px 40px;max-width:1100px}.page-title{font-size:24px;font-weight:800;letter-spacing:-.01em;margin:0 0 4px}.page-sub{font-size:14px;color:var(--gray);margin:0 0 28px}.toolbar{justify-content:space-between;gap:12px;margin-bottom:18px;flex-wrap:wrap}.breadcrumb,.toolbar{display:flex;align-items:center}.breadcrumb{gap:6px}.breadcrumb,.breadcrumb button{font-size:13px;color:var(--gray)}.breadcrumb button{background:none;border:none;padding:0}.breadcrumb button:hover{color:var(--accent)}.btn{border:1px solid var(--border);background:#fff;border-radius:var(--radius);padding:8px 14px;font-size:13px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px}.btn:hover{background:var(--gray-light)}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover{background:var(--accent-dark)}.btn-danger{color:var(--danger);border-color:var(--border)}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;font-size:12px;color:var(--gray);font-weight:600;padding:10px 16px;background:var(--gray-light)}td,th{border-bottom:1px solid var(--border)}td{padding:12px 16px;vertical-align:middle}tr:last-child td{border-bottom:none}tr:hover td{background:#fafafa}.folder-row{cursor:pointer}.folder-row:hover .folder-name{color:var(--accent)}.file-icon,.folder-icon{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:7px;background:var(--gray-light);margin-right:10px;font-size:14px}.folder-icon{background:var(--accent-light)}.meta{color:var(--gray);font-size:13px}.empty-state{text-align:center;padding:60px 20px;color:var(--gray)}.empty-state .title{font-weight:700;color:var(--ink);margin-bottom:6px}.modal-overlay{position:fixed;inset:0;background:rgba(20,16,40,.45);display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:#fff;border-radius:16px;padding:24px;width:420px;max-width:90vw}.modal h3{margin:0 0 16px;font-size:17px}.field{margin-bottom:14px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--gray)}.field input,.field select,.field textarea{width:100%;border:1px solid var(--border);border-radius:8px;padding:9px 12px;font-size:14px;font-family:inherit}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));grid-gap:14px;gap:14px}.gallery-item{border-radius:12px;overflow:hidden;border:1px solid var(--border);background:#fff;position:relative}.gallery-item .video-thumb,.gallery-item img{width:100%;height:160px;object-fit:cover;display:block;background:var(--gray-light)}.gallery-caption{padding:8px 10px;font-size:12px;color:var(--gray)}.badge{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--accent-light);color:var(--accent)}.error-banner{background:#fdecea;color:var(--danger);border-radius:10px;padding:10px 14px;font-size:13px;margin-bottom:16px}