:root {
    --app-bg: #f4f6f9;
    --app-accent: #1f4e79;
    --app-accent-2: #2e75b6;
}

body {
    background: var(--app-bg);
    color: #212529;
}

.app-navbar {
    background: linear-gradient(90deg, var(--app-accent), var(--app-accent-2));
    box-shadow: 0 2px 6px rgba(0, 0, 0, .15);
}

.app-navbar .nav-link.active {
    font-weight: 600;
    border-bottom: 2px solid #fff;
}

.brand-mark {
    display: inline-block;
    margin-right: .25rem;
}

.card {
    border: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .08);
}

.card-header {
    background: #fff;
    font-weight: 600;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 600;
    color: var(--app-accent);
}

.stat-card .stat-label {
    color: #6c757d;
    font-size: .85rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.table > :not(caption) > * > * {
    vertical-align: middle;
}

.dns-record {
    font-family: SFMono-Regular, Consolas, "Liberation Mono", monospace;
    font-size: .85rem;
    background: #f8f9fa;
    border-radius: .25rem;
    padding: .15rem .4rem;
    word-break: break-all;
}

.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--app-accent), var(--app-accent-2));
}

.login-card {
    width: 100%;
    max-width: 400px;
}

.progress {
    height: .6rem;
}

.form-text {
    font-size: .8rem;
}