:root{--bg:#080b10;--panel:#111823;--line:#263243;--text:#f4f7fb;--muted:#94a6bb;--red:#e21d2a}
*{box-sizing:border-box}body{margin:0;font:14px/1.45 Inter,system-ui,Segoe UI,Arial;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}input,textarea,button{font:inherit}
.shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
aside{padding:24px 16px;border-right:1px solid var(--line);background:#0b1017}
.brand{font-size:22px;font-weight:900;margin-bottom:24px}.brand small{display:block;color:var(--muted);font-size:11px}
nav{display:grid;gap:6px}nav a{padding:11px 12px;border-radius:10px;color:#bdc9d8}nav a:hover,nav a.active{background:#171f2b;color:#fff}
main{padding:24px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}h1,h2{margin:0}header p{color:var(--muted);margin:5px 0 0}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card,.panel,.login-card,.form-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px}
.card span{color:var(--muted);font-size:12px}.card b{display:block;font-size:28px;margin-top:8px}
.panel{margin-top:16px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.btn{display:inline-block;padding:10px 13px;border:1px solid var(--line);border-radius:10px;background:#151d28;color:white}.btn.primary{background:var(--red);border-color:#ef4650}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:700px}th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}th{color:#91a4b8;font-size:11px;text-transform:uppercase}
.link{color:#7cb5ff}.login-body{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(420px,100%)}.logo{font-size:30px;font-weight:900}.muted{color:var(--muted)}
form{display:grid;gap:8px}label{color:#a6b5c7;font-size:12px;margin-top:8px}input,textarea{width:100%;padding:11px;border-radius:10px;border:1px solid var(--line);background:#0b1017;color:white}textarea{min-height:100px}
.alert{padding:11px;border-radius:10px;margin:12px 0}.alert.danger{background:#3a171d;border:1px solid #6b2933}.alert.success{background:#103522;border:1px solid #275f43}
.form-page{padding:24px}.form-card{max-width:760px;margin:auto}.back{display:inline-block;color:#8dbaf0;margin-bottom:14px}
@media(max-width:900px){.shell{grid-template-columns:1fr}aside{border-right:0;border-bottom:1px solid var(--line)}nav{grid-template-columns:repeat(2,1fr)}.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){main{padding:14px}.cards{grid-template-columns:1fr}nav{grid-template-columns:1fr}}