:root {
    --newsletter-nav-radius: 12px;
    --newsletter-hero-radius: 16px;
    --newsletter-surface-elev: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.newsletter-module-nav {
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: var(--newsletter-nav-radius);
    background: color-mix(in srgb, var(--mud-palette-surface) 92%, transparent);
}

.newsletter-mod-nav__inner {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
}

.newsletter-mod-nav__link {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 7px 12px;
    border-radius: 10px;
    color: var(--mud-palette-text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.newsletter-mod-nav__link:hover {
    background: color-mix(in srgb, var(--mud-palette-primary) 9%, transparent);
    color: var(--mud-palette-primary);
    transform: translateY(-1px);
}

.newsletter-mod-nav__link--active {
    background: color-mix(in srgb, var(--mud-palette-primary) 14%, var(--mud-palette-surface));
    color: var(--mud-palette-primary);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--mud-palette-primary) 18%, transparent);
}

.newsletter-header-gradient {
    border-radius: var(--newsletter-hero-radius);
    background:
        radial-gradient(900px 260px at 12% -10%, rgba(255, 255, 255, 0.24), transparent 60%),
        linear-gradient(135deg, #075e35 0%, #08723f 54%, #0a8f52 100%);
    color: #fff;
}

.newsletter-surface-border {
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: var(--newsletter-surface-elev);
}

.newsletter-smart-header__avatar {
    color: #fff;
    background: rgba(255, 255, 255, 0.14);
}

.newsletter-smart-header__kicker {
    color: rgba(255, 255, 255, 0.74);
    font-weight: 700;
    letter-spacing: 0.08em;
}

.newsletter-smart-header__title {
    color: #fff;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.newsletter-smart-header__subtitle {
    color: rgba(255, 255, 255, 0.86);
    max-width: 780px;
}

.newsletter-smart-header__panel {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.11);
    color: #fff;
    backdrop-filter: blur(10px);
}

.newsletter-smart-header__chip {
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
}

.newsletter-dashboard,
.newsletter-page-shell {
    max-width: 100%;
}

.newsletter-command-card,
.newsletter-action-card {
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 16px;
    background: var(--mud-palette-surface);
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.055);
}

.newsletter-action-card {
    transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.newsletter-action-card:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--mud-palette-primary) 28%, transparent);
    background: color-mix(in srgb, var(--mud-palette-primary) 4%, var(--mud-palette-surface));
}

@media (max-width: 960px) {
    .newsletter-smart-header__panel {
        margin-top: 8px;
    }
}

/* ===== Command-center alignment (matches Account settings) ===== */
.newsletter-module-nav {
    position: sticky;
    top: 0;
    z-index: 3;
    padding: 9px;
    border: 1px solid color-mix(in srgb, var(--mud-palette-primary) 16%, var(--mud-palette-divider)) !important;
    border-radius: 18px !important;
    background:
        radial-gradient(circle at 0 0, color-mix(in srgb, var(--mud-palette-primary) 12%, transparent), transparent 32%),
        linear-gradient(135deg,
            color-mix(in srgb, var(--mud-palette-surface) 92%, var(--mud-palette-primary)),
            color-mix(in srgb, var(--mud-palette-surface) 98%, var(--mud-palette-primary))) !important;
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(14px);
}

.newsletter-mod-nav__inner {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    align-items: center;
    overflow-x: auto;
    padding: 1px;
}

.newsletter-mod-nav__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 36px;
    padding: 8px 16px;
    border-radius: 999px;
    color: color-mix(in srgb, var(--mud-palette-text-primary) 68%, var(--mud-palette-primary));
    font-size: .875rem;
    font-weight: 650;
    border: 1px solid transparent;
    background: color-mix(in srgb, var(--mud-palette-surface) 76%, transparent);
    white-space: nowrap;
    transition: transform 140ms ease, background-color 140ms ease, color 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}

.newsletter-mod-nav__link:hover {
    transform: translateY(-1px);
    background: color-mix(in srgb, var(--mud-palette-primary) 10%, var(--mud-palette-surface));
    color: var(--mud-palette-text-primary);
    border-color: color-mix(in srgb, var(--mud-palette-primary) 16%, transparent);
}

.newsletter-mod-nav__link--active {
    background: linear-gradient(135deg,
        var(--mud-palette-primary),
        color-mix(in srgb, var(--mud-palette-primary) 76%, var(--mud-palette-success))) !important;
    color: var(--mud-palette-primary-text, #fff) !important;
    border: 1px solid color-mix(in srgb, var(--mud-palette-primary) 84%, var(--mud-palette-primary-text, #fff)) !important;
    box-shadow: 0 9px 20px color-mix(in srgb, var(--mud-palette-primary) 28%, transparent), inset 0 1px 0 rgba(255, 255, 255, .22) !important;
}

.newsletter-header-gradient {
    border-radius: 20px !important;
    color: var(--mud-palette-text-primary) !important;
    background:
        radial-gradient(130% 130% at 0% 0%, color-mix(in srgb, var(--mud-palette-primary) 18%, transparent), transparent 48%),
        radial-gradient(120% 120% at 100% 0%, color-mix(in srgb, var(--mud-palette-secondary, var(--mud-palette-info)) 12%, transparent), transparent 42%),
        linear-gradient(135deg, color-mix(in srgb, var(--mud-palette-primary) 8%, var(--mud-palette-surface)) 0%, var(--mud-palette-surface) 78%) !important;
    border: 1px solid color-mix(in srgb, var(--mud-palette-primary) 14%, var(--mud-palette-divider)) !important;
}

.newsletter-smart-header__avatar {
    background: linear-gradient(135deg, var(--mud-palette-primary), color-mix(in srgb, var(--mud-palette-primary) 60%, var(--mud-palette-secondary, var(--mud-palette-info)))) !important;
    color: var(--mud-palette-primary-text) !important;
    box-shadow: 0 8px 22px color-mix(in srgb, var(--mud-palette-primary) 36%, transparent), inset 0 1px 0 rgba(255, 255, 255, .26);
}

.newsletter-smart-header__kicker {
    color: var(--mud-palette-primary) !important;
    letter-spacing: 0.08em;
    font-weight: 700;
}

.newsletter-smart-header__title {
    color: var(--mud-palette-text-primary) !important;
    font-weight: 760;
    letter-spacing: -.015em;
}

.newsletter-smart-header__subtitle {
    color: var(--mud-palette-text-secondary) !important;
}

.newsletter-smart-header__panel {
    background: color-mix(in srgb, var(--mud-palette-primary) 6%, var(--mud-palette-surface)) !important;
    border: 1px solid var(--mud-palette-divider) !important;
    border-radius: 14px;
    color: var(--mud-palette-text-primary) !important;
    backdrop-filter: blur(6px);
}

.newsletter-smart-header__chip {
    border-radius: 999px;
    background: color-mix(in srgb, var(--mud-palette-primary) 10%, var(--mud-palette-surface)) !important;
    color: var(--mud-palette-text-primary) !important;
    border: 1px solid color-mix(in srgb, var(--mud-palette-primary) 18%, transparent);
}