html, body {
    height: 100%;
}

body {
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%) !important;
    background-attachment: fixed !important;
    min-height: 100vh;
    margin: 0;
    padding: 2rem 0;
}

/* Ensure the background stays fixed and covers the entire viewport */
.bg-gradient-primary {
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%) !important;
}

.logo-container {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-container img {
    max-height: 60px;
    width: auto;
    margin-bottom: 1rem;
}
.card {
    border: none;
    border-radius: 1.25rem;
    box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.15);
    overflow: hidden;
    background: #ffffff;
    margin: 2rem 0;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.2);
}
.form-control {
    border-radius: 0.5rem;
    padding: 0.9rem 1.25rem;
    border: 1px solid #e3e6f0;
    font-size: 1rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: #b7b9cc;
    box-shadow: 0 0 0 0.2rem rgba(78, 115, 223, 0.15);
}
.btn-primary {
    background-color: #4e73df;
    border: none;
    border-radius: 0.5rem;
    padding: 0.75rem 2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
}
.btn-primary:hover {
    background-color: #2e59d9;
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}
.referral-section {
    background-color: #f8f9fc;
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.benefits-list {
    list-style: none;
    padding-left: 0;
}
.benefits-list li {
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
}
.benefits-list li i {
    color: #4e73df;
    margin-right: 0.75rem;
    font-size: 1.25rem;
}
.referral-code {
    background-color: #e9ecef;
    padding: 1rem;
    border-radius: 0.5rem;
    font-family: monospace;
    font-size: 1.1rem;
    text-align: center;
    margin: 1rem 0;
    cursor: pointer;
    transition: all 0.3s ease;
}
.referral-code:hover {
    background-color: #dee2e6;
}