:root {
    --blue: #037ADC;
    --blue-dark: #025fa8;
    --bg: #f4f6f9;
    --sidebar-bg: #0c2f52;
    --sidebar-text: #cfe0f2;
    --sidebar-active: #113f6b;
    --text: #1b2733;
    --muted: #6b7a89;
    --border: #e1e6ec;
    --white: #ffffff;
    --danger: #c0392b;
    --success: #1e8e3e;
    --warning: #b8860b;
    --radius: 6px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
th a { color: inherit; }
.table-filter-head { background: var(--white); padding: 10px 12px; }
.table-filter-head .filter-bar { margin: 0; }
.it-detail { min-width: 290px; max-width: 540px; padding: 12px; background: var(--white); border: 1px solid var(--border); border-radius: 6px; }
.it-detail dl { display: grid; grid-template-columns: minmax(100px, 38%) 1fr; gap: 7px 12px; white-space: normal; overflow-wrap: anywhere; }
.it-detail dt { color: var(--muted); }
.it-detail dd { margin: 0; }
.it-detail form { margin-top: 12px; }
.it-detail summary { cursor: pointer; }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 230px;
    flex-shrink: 0;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    padding: 16px 0;
    max-height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
}
.sidebar-brand { display: flex; align-items: center; gap: 8px; padding: 0 18px 16px; font-weight: 700; color: var(--white); font-size: 16px; border-bottom: 1px solid rgba(255,255,255,.08); margin-bottom: 8px;}
.sidebar-brand img { border-radius: 4px; }

.nav { display: flex; flex-direction: column; gap: 2px; padding: 0 10px; flex: 1; }
.nav a { color: var(--sidebar-text); padding: 9px 12px; border-radius: var(--radius); }
.nav a:hover { background: var(--sidebar-active); text-decoration: none; }
.nav a.active { background: var(--blue); color: var(--white); font-weight: 600; }
.nav-group { margin-top: 10px; display: flex; flex-direction: column; gap: 2px; }
.nav-group-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: rgba(207,224,242,.5); padding: 6px 12px 2px; }
.nav-toggle { background: none; border: none; width: 100%; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-family: inherit; }
.nav-toggle .nav-chevron { font-size: 10px; }
.nav-submenu { display: flex; flex-direction: column; gap: 2px; }

.logout-form { padding: 12px 14px 0; border-top: 1px solid rgba(255,255,255,.08); margin-top: 10px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.user-chip { font-size: 12px; color: var(--sidebar-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.main { flex: 1; padding: 24px 28px; min-width: 0; }

h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 0 0 12px; }

.flash { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 14px; font-size: 13px; }
.flash-success { background: #e4f6e8; color: var(--success); border: 1px solid #bfe6c9; }
.flash-error { background: #fdeceb; color: var(--danger); border: 1px solid #f6c7c2; }
.flash-info { background: #eaf3fc; color: var(--blue-dark); border: 1px solid #c9e0f6; }

.card { background: var(--white); border: 1px solid var(--border); border-radius: 8px; padding: 18px; margin-bottom: 18px; }
.card-row { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
    display: inline-block;
    background: var(--blue);
    color: var(--white);
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
}
.btn:hover { background: var(--blue-dark); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-outline { background: var(--white); color: var(--blue); border: 1px solid var(--blue); }
.btn-outline:hover { background: #eaf3fc; }
.btn-danger { background: var(--white); color: var(--danger); border: 1px solid var(--danger); }
.btn-danger:hover { background: #fdeceb; }
.btn-ghost { background: transparent; color: var(--sidebar-text); border: 1px solid rgba(255,255,255,.2); }
.btn-ghost:hover { background: rgba(255,255,255,.08); }

table { width: 100%; border-collapse: collapse; background: var(--white); }
th, td { padding: 9px 12px; border-bottom: 1px solid var(--border); text-align: left; font-size: 13px; vertical-align: top; }
th { background: #f8fafc; font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .02em; }
tr:hover td { background: #fafcff; }

.table-wrap { overflow-x: auto; background: var(--white); border: 1px solid var(--border); border-radius: 8px; }

.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; padding: 12px; background: #fbfcfe; border-bottom: 1px solid var(--border); }
.filter-bar input, .filter-bar select { padding: 7px 10px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; }

.pagination { display: flex; gap: 4px; padding: 12px; justify-content: flex-end; }
.pagination a, .pagination span { padding: 6px 11px; border-radius: var(--radius); border: 1px solid var(--border); font-size: 13px; color: var(--text); }
.pagination a:hover { background: #eaf3fc; text-decoration: none; }
.pagination .current { background: var(--blue); color: var(--white); border-color: var(--blue); }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 11px; font-weight: 600; }
.badge-ok { background: #e4f6e8; color: var(--success); }
.badge-warn { background: #fdf3e2; color: var(--warning); }
.badge-muted { background: #eef1f4; color: var(--muted); }
.badge-danger { background: #fdeceb; color: var(--danger); }
.badge-blue { background: #eaf3fc; color: var(--blue-dark); }

.age-flag { color: var(--danger); font-weight: 700; }

form.inline { display: inline; }

.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.form-group label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 4px; color: var(--muted); }
.form-group input[type=text], .form-group input[type=url], .form-group input[type=password], .form-group input[type=datetime-local],
.form-group select, .form-group textarea {
    width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; font-family: inherit;
}
.form-group textarea { resize: vertical; min-height: 70px; }
.checkbox-list { display: flex; flex-wrap: wrap; gap: 10px; }
.checkbox-list label { display: flex; align-items: center; gap: 5px; font-size: 13px; font-weight: 400; }

.modal-overlay {
    position: fixed; inset: 0; background: rgba(12,32,52,.45);
    display: none; align-items: center; justify-content: center; z-index: 50; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box { background: var(--white); border-radius: 10px; max-width: 640px; width: 100%; max-height: 90vh; overflow-y: auto; padding: 22px; }
.modal-box h2 { display: flex; justify-content: space-between; align-items: center; }
.modal-close { cursor: pointer; color: var(--muted); font-size: 20px; border: none; background: none; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; gap: 10px; flex-wrap: wrap; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); }
.login-card { background: var(--white); border: 1px solid var(--border); border-radius: 10px; padding: 32px; width: 320px; text-align: center; }
.login-card img { width: 56px; height: 56px; margin-bottom: 12px; border-radius: 8px; }
.login-card h1 { font-size: 17px; }
.login-card .form-group { text-align: left; margin-bottom: 14px; }
.login-card .btn { width: 100%; margin-top: 6px; }

.progress-bar { background: #eef1f4; border-radius: 999px; height: 8px; overflow: hidden; margin-top: 6px; }
.progress-bar-fill { background: var(--blue); height: 100%; }

.muted { color: var(--muted); font-size: 12px; }
.stat-value { font-size: 26px; font-weight: 700; }
.stat-card { flex: 1; min-width: 160px; }
@media (max-width: 760px) {
    .app-shell { display: block; }
    .sidebar { width: 100%; max-height: 42vh; position: static; overflow-y: auto; }
    .nav { display: block; }
    .main { padding: 18px 14px; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid .full { grid-column: auto; }
    .card-row { flex-wrap: wrap; }
}