:root{--bg:#f6f7fb;--panel:#fff;--ink:#1d2433;--mut:#69708a;--acc:#3f51b5;--ok:#2e7d32;--warn:#c62828;--line:#e3e6f0}
*{box-sizing:border-box}body{margin:0;font:15px/1.5 system-ui,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--acc);text-decoration:none}.layout{display:flex;min-height:100vh}
.sidebar{width:210px;background:#23283d;color:#cfd3e8;padding:18px 12px;flex-shrink:0}
.sidebar h1{font-size:17px;color:#fff;margin:0 0 18px}.sidebar a{display:block;color:#cfd3e8;padding:8px 10px;border-radius:6px;margin:2px 0}
.sidebar a.active,.sidebar a:hover{background:#3a4163;color:#fff}.sidebar .foot{margin-top:30px;font-size:13px;color:#8b91b3}
.main{flex:1;padding:24px;max-width:1200px}.cards{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 18px;min-width:150px}
.stat b{font-size:24px;display:block}.stat span{color:var(--mut);font-size:13px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:16px}
table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
th{color:var(--mut);font-size:12px;text-transform:uppercase}tr:hover td{background:#fafbff}
input,select,textarea{padding:8px;border:1px solid var(--line);border-radius:6px;font:inherit;width:100%}
form .row{display:flex;gap:10px;margin-bottom:10px}form .row>div{flex:1}
button{background:var(--acc);color:#fff;border:0;border-radius:6px;padding:9px 16px;font:inherit;cursor:pointer}
.err{background:#fdecea;color:var(--warn);padding:10px;border-radius:6px;margin-bottom:12px}
.ok{background:#e8f5e9;color:var(--ok);padding:10px;border-radius:6px;margin-bottom:12px}
.badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:12px;background:#e8eaf6;color:var(--acc)}
.badge.warn{background:#fdecea;color:var(--warn)}.mut{color:var(--mut)}.login-box{max-width:360px;margin:10vh auto}