* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f4f7fb;
    color: #1f2937;
}
a { color: #0d6efd; text-decoration: none; }
a:hover { text-decoration: underline; }
.login-page {
    display: flex; align-items: center; justify-content: center; min-height: 100vh;
    background: linear-gradient(135deg, #0d6efd 0%, #1e3a8a 100%);
}
.login-card {
    width: 100%; max-width: 430px; background: #fff; padding: 32px; border-radius: 18px;
    box-shadow: 0 20px 45px rgba(0,0,0,0.16);
}
.login-card h1 { margin: 0 0 10px; }
.login-card p { margin: 0 0 20px; color: #6b7280; }
.login-help {
    margin-top: 18px; padding: 12px; background: #f8fafc; border: 1px solid #e5e7eb; border-radius: 12px; font-size: 14px;
}
label {
    display: block; margin-bottom: 6px; margin-top: 12px; font-size: 14px; font-weight: 600;
}
input, select, textarea {
    width: 100%; padding: 12px 14px; border: 1px solid #d1d5db; border-radius: 12px; background: #fff;
}
input:focus, select:focus, textarea:focus {
    outline: none; border-color: #0d6efd; box-shadow: 0 0 0 3px rgba(13,110,253,0.12);
}
button, .btn {
    display: inline-block; background: #0d6efd; color: #fff; border: none; padding: 12px 18px; border-radius: 12px;
    cursor: pointer; text-decoration: none; font-weight: 600;
}
button:hover, .btn:hover { opacity: 0.94; text-decoration: none; }
.btn-light { background: #e5e7eb; color: #111827; }
.btn-sm { padding: 8px 12px; border-radius: 10px; font-size: 13px; }
.alert {
    padding: 12px 14px; border-radius: 12px; margin: 14px 0;
}
.alert-danger { background: #fee2e2; color: #991b1b; }
.alert-success { background: #dcfce7; color: #166534; }
.layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 250px; background: #111827; color: #fff; padding: 24px 20px;
}
.brand-block h2 { margin: 0 0 8px; }
.brand-block p { margin: 0 0 24px; color: #9ca3af; font-size: 14px; }
.sidebar nav a {
    display: block; color: #d1d5db; text-decoration: none; padding: 12px 10px; border-radius: 10px; margin-bottom: 8px;
}
.sidebar nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.content { flex: 1; padding: 28px; }
.page-header {
    display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px;
}
.page-header h1 { margin: 0 0 6px; }
.page-header p { margin: 0; color: #6b7280; }
.card {
    background: #fff; border-radius: 18px; padding: 20px; box-shadow: 0 12px 30px rgba(15,23,42,0.06); margin-bottom: 24px;
}
.section-title-row {
    display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px;
}
.section-title-row h2 { margin: 0; }
.stats-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 24px;
}
.stat-card h3 { margin: 0; color: #6b7280; font-size: 14px; }
.stat-card strong { display: block; font-size: 30px; margin-top: 8px; }
.grid-2 {
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.info-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; margin: 14px 0 20px;
}
.description-block {
    padding: 14px 16px; background: #f8fafc; border: 1px solid #e5e7eb; border-radius: 14px;
}
.description-block p { margin: 8px 0 0; }
.grid-form {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px 20px;
}
.col-span-2 { grid-column: span 2; }
.form-actions { display: flex; justify-content: flex-end; gap: 12px; }
table { width: 100%; border-collapse: collapse; }
table th, table td {
    text-align: left; padding: 12px; border-bottom: 1px solid #e5e7eb; vertical-align: top;
}
table th { font-size: 13px; text-transform: uppercase; color: #6b7280; }
.badge {
    display: inline-block; padding: 6px 10px; border-radius: 999px; font-size: 12px; font-weight: 700;
}
.badge-primary { background: #dbeafe; color: #1d4ed8; }
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-secondary { background: #e5e7eb; color: #374151; }
@media (max-width: 980px) {
    .layout { flex-direction: column; }
    .sidebar { width: 100%; }
    .stats-grid, .grid-2, .info-grid, .grid-form { grid-template-columns: 1fr; }
    .col-span-2 { grid-column: span 1; }
}