:root{--bg:#f4f5f7;--panel:#fff;--ink:#1b2430;--muted:#6b7280;--line:#e5e7eb;--accent:#1f4e7a}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans KR,sans-serif;background:var(--bg);color:var(--ink)}a{color:inherit;text-decoration:none}.shell{display:flex;min-height:100vh}.side{width:200px;background:#13243a;color:#dbe6f3;padding:18px 14px;flex-shrink:0}.side .logo{font-weight:800;font-size:17px;margin-bottom:18px;color:#fff}.side a{display:block;padding:9px 12px;border-radius:9px;font-size:14px;color:#cad9ea;margin-bottom:2px}.side a.active,.side a:hover{background:#1d3a5c;color:#fff}.main{flex:1 1;padding:26px 30px;max-width:980px}h1{font-size:23px;margin:0 0 4px}.sub{color:var(--muted);margin:0 0 20px;font-size:14px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:6px 0;margin-bottom:20px}table{width:100%;border-collapse:collapse;font-size:14px}td,th{text-align:left;padding:10px 16px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}tr:last-child td{border-bottom:none}.pill{font-size:12px;padding:3px 10px;border-radius:999px;background:#eef2f7;color:#374151}.pill.open{background:#e7f6ec;color:#157347}.pill.blocked{background:#fdeceb;color:#b42318}.pill.res{background:#e8eefb;color:#1f4e7a}.btn{padding:7px 12px;border-radius:8px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:13px;font-weight:600}.btn-solid{background:var(--accent);color:#fff;border-color:var(--accent)}.login{max-width:360px;margin:80px auto;background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px}.field{display:block;margin-bottom:14px;font-size:13px;font-weight:600}.field input,.field select{width:100%;margin-top:6px;padding:10px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-weight:400}.alert{padding:10px 12px;border-radius:8px;background:#fef2f2;color:#b91c1c;font-size:13px;margin-bottom:12px}.ok{background:#ecfdf3;color:#157347}.bar{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap;align-items:center}.cal{display:grid;grid-template-columns:repeat(7,1fr);grid-gap:6px;gap:6px}.cell{border:1px solid var(--line);border-radius:8px;padding:8px;text-align:center;cursor:pointer;font-size:13px;background:#fff}.cell.open{background:#e7f6ec}.cell.blocked{background:#fdeceb}.cell.res{background:#e8eefb;cursor:not-allowed}.cell.sel{outline:2px solid var(--accent)}