:root{--bg:#080d15;--panel:#111a2b;--border:#25334a;--text:#eef5ff;--muted:#86a0c5;--green:#00e676;--cyan:#23b7e5;--red:#ff5252}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px system-ui}aside{position:fixed;width:240px;inset:0 auto 0 0;background:#0b121e;border-right:1px solid var(--border);padding:22px}.brand{font-weight:800;color:var(--green);font-size:20px}.brand span{color:var(--text);font-size:14px;margin-left:8px}nav{display:grid;gap:8px;margin-top:35px}nav a{color:var(--muted);text-decoration:none;padding:11px;border-radius:7px}nav a:hover{background:#162235;color:var(--green)}.app{margin-left:240px}header{height:66px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 28px}header span{color:var(--muted)}main{padding:28px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:18px}.value{font-size:28px;font-weight:800;color:var(--green)}.muted{color:var(--muted)}label{display:block;color:var(--muted);margin:12px 0 6px}input,select{width:100%;padding:11px;background:#0b1320;border:1px solid var(--border);border-radius:7px;color:var(--text)}button{padding:11px 18px;background:#078f49;border:0;border-radius:7px;color:white;font-weight:700;cursor:pointer}.alert{background:#4a2028;color:#ffb6bf;padding:10px;border-radius:7px;margin:12px 0}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:11px;border-bottom:1px solid var(--border)}th{color:var(--muted)}.login-body{min-height:100vh;display:grid;place-items:center}.login-card{width:380px;background:var(--panel);border:1px solid var(--border);padding:30px;border-radius:14px}.login-card h1{color:var(--green);margin:0}.login-card button{width:100%;margin-top:18px}@media(max-width:800px){aside{position:static;width:auto}.app{margin:0}.grid{grid-template-columns:1fr}}