body {
    background-color: #013769;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}
.login-container {
    max-width: 480px;
    width: 100%;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    background-color: #fff;
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    right: -50px;
    bottom: -50px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    z-index: -1;
    transform: rotate(10deg);
    opacity: 0.7;
}

.form-control {
    border-radius: 8px;
    padding: 12px 15px;
    border: 1px solid #ced4da;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-control:focus {
    border-color: #013769;
    box-shadow: 0 0 0 0.25rem rgba(53, 78, 152, 0.25);
    background-color: #f0f4fa;
}
.btn-primary {
    background-color: #013769;
    border-color: #013769;
    border-radius: 8px;
    padding: 12px 0;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 10px rgba(53, 78, 152, 0.3);
}
.btn-primary:hover {
    background-color: #00284d;
    border-color: #00284d;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(53, 78, 152, 0.4);
}
a{
    color: #013769;
}
a:hover{
    color: #00284d;
}
.btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(53, 78, 152, 0.2);
}

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
    text-align: center;
}
.logo-container img {
    width: 80px;
    height: 104px;
    margin-bottom: 15px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}
.logo-container h3 {
    color: #013769;
    font-weight: 700;
    font-size: 1.8rem;
    margin-bottom: 5px;
}
.logo-container p {
    color: #6c757d;
    font-size: 0.9rem;
    margin-top: -5px;
}
h4 {
    color: #013769;
    font-weight: 600;
    margin-bottom: 25px;
    font-size: 1.6rem;
}
.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 8px;
}
.form-label i {
    margin-right: 8px;
    color: #013769;
}
.text-muted {
    font-size: 0.85rem;
    color: #888 !important;
}

.custom-message {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1050;
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}
.custom-message.show {
    opacity: 1;
    visibility: visible;
}
.custom-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.custom-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}
.custom-message .close-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    margin-left: 15px;
    cursor: pointer;
    color: inherit;
}