:root {
    --bg: #0f172a;
    --panel: #111827;
    --panel-soft: #172033;
    --text: #e5eefc;
    --muted: #91a3bf;
    --line: #233149;
    --accent: #22c55e;
    --warn: #f59e0b;
    --danger: #ef4444;
    --info: #38bdf8;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, sans-serif;
    background: radial-gradient(circle at top, #14213d, var(--bg) 45%);
    color: var(--text);
}
a { color: #8fdcff; text-decoration: none; }
.shell { min-height: 100vh; padding: 20px; }
.nav { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.nav-links, .actions { display: flex; gap: 10px; flex-wrap: wrap; }
.brand { font-size: 1.25rem; font-weight: 700; }
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.card {
    background: linear-gradient(180deg, rgba(23,32,51,0.95), rgba(15,23,42,0.92));
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.22);
}
.stat { grid-column: span 3; }
.wide { grid-column: span 6; }
.full { grid-column: span 12; }
.label { color: var(--muted); font-size: 0.85rem; margin-bottom: 8px; }
.value { font-size: 1.5rem; font-weight: 700; }
.badge { display: inline-flex; padding: 5px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 700; }
.badge.ok { background: rgba(34,197,94,0.15); color: #86efac; }
.badge.warn { background: rgba(245,158,11,0.15); color: #fcd34d; }
.badge.danger { background: rgba(239,68,68,0.15); color: #fca5a5; }
.btn, button {
    border: none;
    border-radius: 12px;
    padding: 10px 14px;
    background: #20314b;
    color: var(--text);
    cursor: pointer;
    font-weight: 600;
}
.btn.primary { background: linear-gradient(135deg, #1d4ed8, #2563eb); }
.btn.success { background: linear-gradient(135deg, #15803d, #22c55e); }
.btn.warn { background: linear-gradient(135deg, #b45309, #f59e0b); }
.btn.danger { background: linear-gradient(135deg, #b91c1c, #ef4444); }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
input, textarea, select {
    width: 100%;
    background: #0b1220;
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 10px 12px;
}
textarea { min-height: 110px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.muted { color: var(--muted); }
.flash {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 12px;
    background: rgba(56,189,248,0.1);
    border: 1px solid rgba(56,189,248,0.2);
}
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: 100%; max-width: 420px; }
@media (max-width: 980px) {
    .stat, .wide, .full { grid-column: span 12; }
    .form-grid { grid-template-columns: 1fr; }
}