:root{--bg: #ffffff;--surface: #f6f8fa;--border: #d0d7de;--text: #1f2328;--muted: #656d76;--accent: #0969da;--success: #1a7f37;--warning: #9a6700;--danger: #cf222e}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}input,select,textarea,button{font:inherit}button{cursor:pointer}.app{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--surface);border-right:1px solid var(--border);padding:1rem 0}.sidebar h1{font-size:1rem;font-weight:600;margin:0 1rem 1rem;color:var(--text)}.sidebar nav a{display:block;padding:.5rem 1rem;color:var(--muted);border-left:3px solid transparent}.sidebar nav a:hover,.sidebar nav a.active{color:var(--text);background:#0969da14;border-left-color:var(--accent)}.main{flex:1;padding:1.5rem 2rem;overflow:auto}.page-title{margin:0 0 1.5rem;font-size:1.5rem;font-weight:600}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:1.25rem;margin-bottom:1rem}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.6rem .75rem;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--muted);font-size:.85rem}tr:hover td{background:#00000008}.btn{display:inline-block;padding:.5rem 1rem;border-radius:6px;border:1px solid var(--border);background:var(--surface);color:var(--text)}.btn:hover{background:var(--border)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{filter:brightness(1.1)}.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn-sm{padding:.25rem .5rem;font-size:.875rem}.form-group{margin-bottom:1rem}.form-group label{display:block;margin-bottom:.25rem;color:var(--muted);font-size:.9rem}.form-group input,.form-group select,.form-group textarea{width:100%;max-width:400px;padding:.5rem .75rem;background:#fff;border:1px solid var(--border);border-radius:6px;color:var(--text)}.form-group textarea{min-height:80px;resize:vertical}.stats{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:1.5rem}.stat{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:1rem 1.25rem;min-width:140px}.stat .value{font-size:1.5rem;font-weight:600}.stat .label{font-size:.85rem;color:var(--muted)}.badge{display:inline-block;padding:.2rem .5rem;border-radius:4px;font-size:.8rem}.badge-tbc{background:var(--warning);color:#000}.badge-confirmed{background:var(--success);color:#000}.badge-cancelled{background:var(--danger);color:#fff}.user-bar{display:flex;align-items:center;justify-content:flex-end;gap:1rem;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.user-bar span{color:var(--muted);font-size:.9rem}.user-bar button{padding:.35rem .75rem}.error-msg{color:var(--danger);margin-top:.5rem}@keyframes spin{to{transform:rotate(360deg)}}