body {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-blue) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

/* Navy Card */
.navy-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 32, 91, 0.3);
    width: 100%;
    overflow: hidden;
    border: 2px solid var(--navy-blue);
    margin-bottom: 15px;
}

/* Navy Header */
.navy-header {
    background: linear-gradient(to right, var(--navy-blue), var(--navy-light));
    color: white;
    padding: 20px;
    text-align: center;
    position: relative;
}

.navy-header::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(to right, var(--gold), var(--silver));
}

.navy-logo {
    font-size: 2rem;
    margin-bottom: 8px;
    color: var(--gold);
}

.navy-title {
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 3px;
    letter-spacing: 0.5px;
}

.navy-subtitle {
    font-size: 0.85rem;
    opacity: 0.9;
}

/* Navy Body */
.navy-body {
    padding: 25px;
}

.login-title {
    text-align: center;
    color: var(--navy-blue);
    font-size: 1.1rem;
    margin-bottom: 20px;
    font-weight: 600;
}

/* Form Elements */
.form-control {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 10px 12px;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.form-control:focus {
    border-color: var(--navy-blue);
    box-shadow: 0 0 0 0.2rem rgba(0, 32, 91, 0.15);
}

.input-group-text {
    background-color: var(--navy-blue);
    color: white;
    border: 1px solid var(--navy-blue);
    padding: 10px 12px;
    font-size: 0.9rem;
}

.form-label {
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: var(--navy-blue);
}

/* Buttons */
.btn-navy {
    background: var(--navy-blue);
    border: none;
    color: white;
    padding: 10px;
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.2s;
    width: 100%;
    font-size: 0.95rem;
}

.btn-navy:hover {
    background: var(--navy-dark);
    color: white;
}

.btn-navy:active {
    background: var(--navy-dark);
    transform: translateY(1px);
}

/* Navy Footer */
.navy-footer {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.75rem;
    padding: 10px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    margin-top: 5px;
}

/* Links */
.navy-link {
    color: var(--navy-blue);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.85rem;
}

.navy-link:hover {
    color: var(--navy-dark);
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 8px 12px;
    font-size: 0.85rem;
    margin-bottom: 15px;
    border-radius: 4px;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c2c7;
    color: #842029;
}

.alert-success {
    background-color: #d1e7dd;
    border-color: #badbcc;
    color: #0f5132;
}

/* Form Check */
.form-check {
    margin-bottom: 15px;
    font-size: 0.85rem;
}

.form-check-input:checked {
    background-color: var(--navy-blue);
    border-color: var(--navy-blue);
}

.form-check-input:focus {
    border-color: var(--navy-blue);
    box-shadow: 0 0 0 0.25rem rgba(0, 32, 91, 0.25);
}

/* Password Toggle */
.password-toggle {
    background-color: #f8f9fa;
    border: 1px solid #ddd;
    border-left: none;
    color: #666;
}

.password-toggle:hover {
    background-color: #e9ecef;
    color: var(--navy-blue);
}

/* Compact Spacing */
.mb-compact {
    margin-bottom: 12px;
}

.mt-compact {
    margin-top: 10px;
}

/* Small Text */
.small-text {
    font-size: 0.8rem;
}

/* Invalid Feedback */
.invalid-feedback {
    font-size: 0.8rem;
}

/* Modal Customization */
.modal-header {
    background: var(--navy-blue);
    color: white;
}

/* Responsive Adjustments */
@media (max-width: 576px) {
    .login-container {
        max-width: 95%;
    }
    
    .navy-body {
        padding: 20px;
    }
    
    .navy-header {
        padding: 15px;
    }
}

/* Error States */
.is-invalid {
    border-color: var(--danger);
}

.is-invalid:focus {
    border-color: var(--danger);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

/* Loading State */
.btn-navy:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}