:root{--bg:#f6f7f9;--panel:#fff;--text:#20242a;--muted:#667085;--line:#dfe3e8;--accent:#147d64;--danger:#b42318;--sidebar:#1f2933}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit}.sidebar{position:fixed;inset:0 auto 0 0;width:230px;background:var(--sidebar);color:#fff;padding:22px 18px}.brand{font-size:21px;font-weight:700;margin-bottom:26px}.sidebar nav{display:grid;gap:6px}.sidebar a{display:block;padding:10px 12px;border-radius:6px;text-decoration:none;color:#e6edf3}.sidebar a:hover{background:rgba(255,255,255,.09)}.logout{position:absolute;bottom:18px;left:18px;right:18px}.main{margin-left:230px;padding:28px}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}h1{margin:0;font-size:28px}h2{margin:0 0 14px;font-size:19px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px;margin-bottom:16px}.metric{font-size:34px;font-weight:700}.muted{color:var(--muted)}.late{color:var(--danger);font-weight:700}.ok{color:var(--accent);font-weight:700}table{width:100%;border-collapse:collapse;background:var(--panel)}th,td{padding:11px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}button,.button{border:0;background:var(--accent);color:#fff;padding:9px 12px;border-radius:6px;text-decoration:none;cursor:pointer;font:inherit}.secondary{background:#485465}.danger{background:var(--danger)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:6px;padding:9px 10px;font:inherit;background:#fff}label{display:grid;gap:6px;color:var(--muted);font-size:13px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.login{min-height:100vh;display:grid;place-items:center;padding:20px}.card{width:min(460px,100%);background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px}.alert{border:1px solid #f2c6c2;background:#fff4f2;color:var(--danger);padding:10px 12px;border-radius:6px;margin-bottom:12px}.success{border-color:#b7e4cf;background:#effaf5;color:#0b6b4b}@media(max-width:860px){.sidebar{position:static;width:auto}.logout{position:static}.main{margin-left:0;padding:18px}.grid,.form-grid{grid-template-columns:1fr}}