:root{--bg: #f6f7f9;--surface: #ffffff;--border: #e3e5e8;--text: #1a1d21;--muted: #6a7180;--primary: #3b5bdb;--primary-hover: #2f4ac4;--danger: #c92a2a;--success: #2b8a3e;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-size:14px}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;padding:8px 14px;border:1px solid var(--border);background:var(--surface);border-radius:6px;cursor:pointer}button:hover{background:#f0f1f3}button.primary{background:var(--primary);color:#fff;border-color:var(--primary)}button.primary:hover{background:var(--primary-hover)}button.danger{background:var(--danger);color:#fff;border-color:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{font:inherit;padding:8px 10px;border:1px solid var(--border);border-radius:6px;background:var(--surface);width:100%}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.field{margin-bottom:12px}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px}table{width:100%;border-collapse:collapse}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}th{font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px}.layout{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:20px 16px}.sidebar h1{font-size:16px;margin:0 0 20px}.sidebar nav a{display:block;padding:8px 10px;border-radius:6px;color:var(--text)}.sidebar nav a.active{background:#eef0fc;color:var(--primary);font-weight:500}.sidebar nav a:hover{text-decoration:none;background:#f0f1f3}.sidebar .footer{position:absolute;bottom:16px;font-size:12px;color:var(--muted)}.content{padding:24px 32px;max-width:1100px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.page-header h2{margin:0;font-size:22px}.row{display:flex;gap:8px;align-items:center}.muted{color:var(--muted)}.spacer{flex:1}.error{color:var(--danger);font-size:13px;margin-top:6px}.success{color:var(--success);font-size:13px;margin-top:6px}.empty{padding:40px;text-align:center;color:var(--muted)}.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(--surface);border-radius:8px;padding:24px;width:480px;max-width:calc(100vw - 32px)}.modal h3{margin:0 0 16px}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.login-card{width:360px}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:500}.badge.active{background:#e6f7ec;color:var(--success)}.badge.cancelled{background:#ffe9e9;color:var(--danger)}.badge.past_due{background:#fff4e0;color:#b76b00}