.shuttr-login-container {
    max-width: 420px;
    margin: 40px auto;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.08);
}
.shuttr-portal-wrap {
    max-width: 1200px;
    margin: 20px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.shuttr-portal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    border-bottom: 2px solid #eef0f2;
}
.shuttr-portal-nav {
    display: flex;
    gap: 12px;
    margin: 20px 0;
    border-bottom: 1px solid #e0e0e0;
}
.shuttr-portal-nav a {
    padding: 10px 18px;
    text-decoration: none;
    color: #555;
    font-weight: 600;
    border-bottom: 3px solid transparent;
}
.shuttr-portal-nav a.active,
.shuttr-portal-nav a:hover {
    color: #000;
    border-bottom-color: #000;
}
.shuttr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.shuttr-card {
    background: #fff;
    padding: 24px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}
.shuttr-btn-logout {
    margin-left: 10px;
    color: #e53e3e;
    text-decoration: none;
}