:root {
    --sa-primary: #0f4c5c;
    --sa-secondary: #2c7da0;
    --sa-accent: #f4a261;
    --sa-bg: #edf5f8;
    --sa-surface: #ffffff;
    --sa-border: #c9dce5;
    --sa-text: #1b2a34;
    --sa-muted: #526472;
}

.body-superadmin,
.body-superadmin-login {
    --club-primary: var(--sa-primary);
    --club-secondary: var(--sa-secondary);
    --club-accent: var(--sa-accent);
    margin: 0;
    background: radial-gradient(circle at top right, #d7edf7 0%, var(--sa-bg) 45%, #f6fbfd 100%);
    color: var(--sa-text);
}

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

.superadmin-login-panel {
    width: min(460px, 95vw);
    background: var(--sa-surface);
    border: 1px solid var(--sa-border);
    border-radius: 18px;
    box-shadow: 0 24px 44px rgba(15, 76, 92, 0.16);
    padding: 28px;
}

.superadmin-brand {
    text-align: center;
    margin-bottom: 18px;
}

.superadmin-logo {
    width: 62px;
    height: 62px;
    border-radius: 14px;
    background: linear-gradient(145deg, var(--sa-primary), var(--sa-secondary));
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 27px;
    margin-bottom: 10px;
}

.superadmin-brand h1 {
    color: var(--sa-primary);
    margin: 0 0 8px;
    font-size: 30px;
}

.superadmin-brand p {
    margin: 0;
    color: var(--sa-muted);
}

.superadmin-topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    background: linear-gradient(135deg, var(--sa-primary), var(--sa-secondary));
    color: #fff;
    box-shadow: 0 10px 22px rgba(15, 76, 92, 0.24);
}

.superadmin-topbar-inner {
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.superadmin-title {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: 0.01em;
}

.superadmin-title i {
    font-size: 18px;
}

.superadmin-user {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.superadmin-logout {
    color: #fff;
    text-decoration: none;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.14);
}

.superadmin-layout {
    padding-top: 16px;
    padding-bottom: 20px;
}

.superadmin-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}

.superadmin-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 700;
    color: var(--sa-primary);
    background: #ffffff;
    border: 1px solid var(--sa-border);
    border-radius: 999px;
    padding: 8px 14px;
    transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.superadmin-tab:hover {
    background: #f0f7fb;
    border-color: #aac8d5;
}

.superadmin-tab.active {
    color: #fff;
    background: linear-gradient(135deg, var(--sa-primary), var(--sa-secondary));
    border-color: transparent;
}

.body-superadmin .card {
    border: 1px solid var(--sa-border);
}

.club-login-btn {
    width: auto;
    min-width: 96px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--sa-primary), var(--sa-secondary));
}

.superadmin-form-actions {
    grid-column: 1 / -1;
    display: flex;
    justify-content: flex-start;
}

.superadmin-form-actions button {
    width: auto;
    min-width: 210px;
}

@media (max-width: 700px) {
    .superadmin-topbar-inner {
        padding-top: 10px;
        padding-bottom: 10px;
        flex-wrap: wrap;
    }
}