:root {
    --primary:    #1A3264;
    --primary-dk: #0D1E3E;
    --primary-lt: #2B4A8C;
    --accent:     #8C8C8C;
    --danger:     #B71C1C;
    --success:    #1B5E20;
    --bg:         #EEF1F7;
    --card:       #FFFFFF;
    --text:       #1A1A2E;
    --muted:      #6B7280;
    --border:     #D1D8E8;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ── Topbar ─────────────────────────────────────────── */
.topbar {
    background: var(--primary);
    height: 56px;
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
.topbar .logo { height: 36px; border-radius: 4px; }
.topbar .app-title {
    color: #fff;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: .5px;
    flex: 1;
}
.topbar .nav-link {
    color: rgba(255,255,255,.8);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 14px;
    border-radius: 4px;
    transition: background .15s;
}
.topbar .nav-link:hover, .topbar .nav-link.active {
    background: rgba(255,255,255,.15);
    color: #fff;
}
.topbar .user-info {
    color: rgba(255,255,255,.85);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.topbar .btn-logout {
    background: rgba(255,255,255,.15);
    color: #fff;
    border: 1px solid rgba(255,255,255,.3);
    padding: 5px 14px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: background .15s;
}
.topbar .btn-logout:hover { background: rgba(255,255,255,.25); }

/* ── Layout ──────────────────────────────────────────── */
.page-wrap { padding: 28px 32px; max-width: 1400px; margin: 0 auto; }

.page-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* ── Cards ───────────────────────────────────────────── */
.card {
    background: var(--card);
    border-radius: 10px;
    box-shadow: 0 1px 4px rgba(0,0,0,.08);
    overflow: hidden;
}
.card-header {
    background: var(--primary);
    color: #fff;
    padding: 14px 20px;
    font-weight: 600;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.card-body { padding: 20px; }

/* ── Stats cards ─────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--card);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 1px 4px rgba(26,50,100,.1);
    border-left: 5px solid var(--primary);
}
.stat-card.orange { border-color: #E67E22; }
.stat-card.blue   { border-color: #8C8C8C; }
.stat-card.red    { border-color: #B71C1C; }
.stat-card.green  { border-color: #1B5E20; }
.stat-card .label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.stat-card .value { font-size: 24px; font-weight: 700; margin: 8px 0 4px; line-height: 1.1; }
.stat-card .sub   { font-size: 12px; color: var(--muted); }

/* ── Tabs ────────────────────────────────────────────── */
.tab-bar {
    display: flex;
    gap: 4px;
    border-bottom: 2px solid var(--border);
    margin-bottom: 24px;
}
.tab-btn {
    padding: 10px 20px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 14px;
    color: var(--muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    border-radius: 4px 4px 0 0;
    transition: all .15s;
}
.tab-btn:hover { background: #f5f5f5; color: var(--primary); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Form ────────────────────────────────────────────── */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-row.single { grid-template-columns: 1fr; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 500; color: var(--muted); }
.form-group input, .form-group select, .form-group textarea {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 9px 12px;
    font-size: 14px;
    outline: none;
    transition: border-color .15s;
    background: #fafafa;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--primary);
    background: #fff;
}

/* ── Buttons ─────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 20px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: opacity .15s, transform .1s;
}
.btn:hover { opacity: .88; }
.btn:active { transform: scale(.97); }
.btn-primary  { background: var(--primary); color: #fff; }
.btn-danger   { background: var(--danger);  color: #fff; }
.btn-outline  { background: transparent; border: 1.5px solid var(--primary); color: var(--primary); }
.btn-sm { padding: 5px 12px; font-size: 13px; }

/* ── Table ───────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
thead th {
    background: #f5f5f5;
    padding: 11px 14px;
    text-align: left;
    font-weight: 600;
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .4px;
    border-bottom: 2px solid var(--border);
}
tbody td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
tbody tr:hover { background: #fafafa; }
tbody tr:last-child td { border-bottom: none; }

/* ── Badges ──────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}
.badge-success { background: #E8F5E9; color: #2E7D32; }
.badge-warning { background: #FFF8E1; color: #F57F17; }
.badge-danger  { background: #FFEBEE; color: #C62828; }
.badge-info    { background: #E3F2FD; color: #0D47A1; }

/* ── Filters bar ─────────────────────────────────────── */
.filters {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
    margin-bottom: 20px;
    background: var(--card);
    padding: 16px;
    border-radius: 10px;
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.filters .form-group { flex: 1; min-width: 140px; }

/* ── Login page ──────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, #0D1E3E 0%, #1A3264 50%, #2B4A8C 100%);
}
.login-box {
    background: #fff;
    border-radius: 16px;
    padding: 44px 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 24px 64px rgba(13,30,62,.45);
    text-align: center;
    border-top: 4px solid #1A3264;
}
.login-box img { height: 100px; margin-bottom: 10px; }
.login-box p.subtitle { color: var(--muted); font-size: 13px; margin-bottom: 4px; }
.login-box h2 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 28px; }
.login-box .form-group { text-align: left; margin-bottom: 16px; }
.login-box .btn { width: 100%; justify-content: center; padding: 12px; font-size: 15px; margin-top: 8px; }
.login-error {
    background: #FFEBEE;
    color: #C62828;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 16px;
    display: none;
}

/* ── Toast ───────────────────────────────────────────── */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    background: #333;
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    box-shadow: 0 4px 16px rgba(0,0,0,.2);
    animation: slideIn .2s ease;
    max-width: 320px;
}
.toast.success { background: var(--success); }
.toast.error   { background: var(--danger); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── Spinner ─────────────────────────────────────────── */
.spinner {
    display: inline-block;
    width: 20px; height: 20px;
    border: 2.5px solid rgba(255,255,255,.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
}
.spinner.dark { border-color: rgba(0,0,0,.15); border-top-color: var(--primary); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Pagination ──────────────────────────────────────── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-top: 1px solid var(--border);
    background: #fafbff;
    flex-wrap: wrap;
    gap: 10px;
}
.pagination .info { font-size: 13px; color: var(--muted); }
.pagination .controls { display: flex; gap: 6px; align-items: center; }
.page-btn {
    border: 1.5px solid var(--border);
    background: #fff;
    color: var(--text);
    padding: 5px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 13px;
    transition: all .15s;
    min-width: 36px;
    text-align: center;
}
.page-btn:hover:not(:disabled) { background: var(--primary); color: #fff; border-color: var(--primary); }
.page-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 700; }
.page-btn:disabled { opacity: .4; cursor: default; }

/* ── Totals row ──────────────────────────────────────── */
tfoot td {
    padding: 12px 14px;
    font-weight: 700;
    font-size: 13px;
    background: #EEF1F7;
    border-top: 2px solid var(--border);
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 640px) {
    .page-wrap { padding: 16px; }
    .form-row  { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}