:root {
    --om-sidebar-width: 248px;
    --om-border: #d9dee7;
    --om-bg: #f6f7f9;
    --om-surface: #ffffff;
    --om-text: #172033;
    --om-muted: #5f6b7a;
    --om-green: #16794c;
    --om-amber: #b7791f;
}

[x-cloak] {
    display: none !important;
}

body {
    min-height: 100vh;
    color: var(--om-text);
    background: var(--om-bg);
    letter-spacing: 0;
}

.admin-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    display: flex;
    align-items: center;
    gap: 16px;
    min-height: 64px;
    padding: 0 24px;
    background: var(--om-surface);
    border-bottom: 1px solid var(--om-border);
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--om-text);
    font-weight: 700;
}

.brand-mark img {
    flex: 0 0 auto;
}

.admin-shell {
    display: flex;
    min-height: calc(100vh - 64px);
}

.admin-sidebar,
.advertiser-sidebar {
    flex: 0 0 var(--om-sidebar-width);
    width: var(--om-sidebar-width);
    padding: 20px 16px;
    background: #111827;
    color: #d5dbe7;
}

.admin-sidebar .nav-link,
.advertiser-sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 10px 12px;
    color: #d5dbe7;
    border-radius: 8px;
}

.admin-sidebar .nav-link i,
.advertiser-sidebar .nav-link i {
    font-size: 1.1rem;
}

.admin-sidebar .nav-link.active,
.admin-sidebar .nav-link:hover,
.advertiser-sidebar .nav-link.active,
.advertiser-sidebar .nav-link:hover {
    color: #ffffff;
    background: #2563eb;
}

.admin-sidebar .nav-link.disabled,
.advertiser-sidebar .nav-link.disabled {
    color: #8791a3;
    background: transparent;
}

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

.page-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.metric-card,
.content-panel,
.login-panel {
    background: var(--om-surface);
    border: 1px solid var(--om-border);
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.metric-card {
    display: grid;
    grid-template-columns: 44px 1fr;
    column-gap: 14px;
    row-gap: 4px;
    min-height: 112px;
    padding: 18px;
}

.metric-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    grid-row: 1 / span 2;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    font-size: 1.25rem;
}

.metric-label {
    align-self: end;
    color: var(--om-muted);
    font-size: 0.9rem;
}

.metric-card strong {
    align-self: start;
    font-size: 1.6rem;
    line-height: 1.2;
}

.content-panel {
    padding: 20px;
}

.chart-box {
    position: relative;
    min-height: 320px;
}

.login-body {
    background: #eef2f7;
}

.login-shell {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}

.login-panel {
    width: min(100%, 380px);
    padding: 28px;
}

.icon-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: transparent;
    border: 1px solid var(--om-border);
    border-radius: 8px;
}

@media (max-width: 991.98px) {
    .admin-sidebar,
    .advertiser-sidebar {
        position: fixed;
        inset: 64px auto 0 0;
        z-index: 1020;
        transform: translateX(-100%);
        transition: transform 160ms ease;
    }

    .admin-sidebar.is-open,
    .advertiser-sidebar.is-open {
        transform: translateX(0);
    }

    .admin-main {
        padding: 20px;
    }
}