:root {
    --bg: #0b1020;
    --surface: rgba(15, 23, 42, 0.88);
    --surface-2: rgba(30, 41, 59, 0.92);
    --border: rgba(148, 163, 184, 0.15);
    --text: #e5e7eb;
    --muted: #94a3b8;
    --accent: #2954ff;
    --accent-soft: rgba(41, 84, 255, 0.16);
    --danger: #ef4444;
    --radius: 20px;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, Arial, sans-serif; color: var(--text); background: linear-gradient(180deg, #060b16 0%, #0c1324 100%); }
a { color: inherit; text-decoration: none; }
.login-body { min-height: 100vh; overflow: hidden; position: relative; }
#particles { position: fixed; inset: 0; z-index: 0; }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; position: relative; z-index: 1; }
.login-card {
    width: 100%; max-width: 470px; background: rgba(9, 15, 27, 0.75); backdrop-filter: blur(18px);
    border: 1px solid var(--border); border-radius: 28px; box-shadow: var(--shadow); padding: 36px;
}
.login-brand { text-align: center; margin-bottom: 22px; }
.brand-mark {
    width: 44px; height: 44px; border-radius: 14px; background: linear-gradient(135deg, #1d4ed8, #0f172a);
    display: inline-grid; place-items: center; font-weight: 700; letter-spacing: 1px; border: 1px solid rgba(255,255,255,.08);
}
.brand-mark.large { width: 72px; height: 72px; border-radius: 20px; margin: 0 auto 18px; font-size: 22px; }
.login-brand h1, .brand-box h1 { margin: 0; font-size: 28px; }
.login-brand p, .brand-box p, .topbar p { margin: 8px 0 0; color: var(--muted); }
.role-pills { display: flex; justify-content: center; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.role-pills span, .role-chip, .badge {
    padding: 8px 12px; border-radius: 999px; background: var(--accent-soft); color: #c7d2fe; border: 1px solid rgba(99,102,241,.15);
    font-size: 13px;
}
.alert { background: rgba(239,68,68,.12); color: #fecaca; border: 1px solid rgba(239,68,68,.2); padding: 12px 14px; border-radius: 14px; margin-bottom: 16px; }
.login-form { display: grid; gap: 10px; }
.login-form label { color: #cbd5e1; font-size: 14px; }
.login-form input {
    background: rgba(15,23,42,.85); color: var(--text); border: 1px solid var(--border);
    padding: 14px 16px; border-radius: 14px; outline: none;
}
.login-form button, .logout-link {
    margin-top: 10px; background: linear-gradient(135deg, #2954ff, #1832a8); color: white; border: none;
    padding: 14px 18px; border-radius: 14px; font-weight: 600; cursor: pointer; text-align: center;
}
.demo-box { margin-top: 20px; padding: 18px; background: rgba(15,23,42,.75); border-radius: 18px; border: 1px solid var(--border); }
.demo-box h3 { margin: 0 0 10px; }
.demo-box p { margin: 6px 0; color: #cbd5e1; font-size: 14px; }
.app-body { min-height: 100vh; }
.app-shell { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.sidebar {
    background: rgba(7, 11, 20, 0.92); border-right: 1px solid var(--border); padding: 24px;
    display: flex; flex-direction: column; gap: 28px;
}
.brand-box { display: flex; gap: 14px; align-items: center; }
.side-nav { display: grid; gap: 8px; }
.side-nav a {
    padding: 13px 15px; border-radius: 14px; color: #cbd5e1; border: 1px solid transparent;
}
.side-nav a:hover { background: rgba(148, 163, 184, 0.08); border-color: var(--border); }
.sidebar-footer { margin-top: auto; display: grid; gap: 12px; }
.user-mini { padding: 14px; border-radius: 16px; background: rgba(15,23,42,.75); border: 1px solid var(--border); }
.user-mini span { display:block; color: var(--muted); margin-top: 4px; }
.main-panel { padding: 28px; }
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; gap: 16px; }
.stats-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-bottom: 20px; }
.stat-card, .panel-card {
    background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
}
.stat-card { padding: 22px; }
.stat-card span { color: var(--muted); display:block; margin-bottom: 12px; }
.stat-card strong { font-size: 28px; }
.stat-card.wide { grid-column: span 2; }
.content-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; }
.panel-card { padding: 20px; }
.panel-head { display:flex; justify-content: space-between; align-items:center; margin-bottom: 14px; }
.panel-head h3 { margin: 0; }
table { width:100%; border-collapse: collapse; }
th, td { text-align:left; padding: 14px 12px; border-bottom: 1px solid var(--border); }
th { color: #cbd5e1; font-size: 14px; }
td { color: #e2e8f0; font-size: 14px; }
.activity-list { display: grid; gap: 14px; }
.activity-item { padding: 14px; background: var(--surface-2); border-radius: 16px; border: 1px solid var(--border); }
.activity-item p { margin: 8px 0; color: #cbd5e1; }
.activity-item span { color: var(--muted); font-size: 13px; }
@media (max-width: 1200px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-card.wide { grid-column: span 2; }
    .content-grid { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { position: relative; }
}
@media (max-width: 600px) {
    .stats-grid { grid-template-columns: 1fr; }
    .stat-card.wide { grid-column: span 1; }
    .topbar { flex-direction: column; align-items: flex-start; }
    .main-panel { padding: 18px; }
    th, td { padding: 12px 8px; font-size: 13px; }
}