body {
    background: linear-gradient(135deg,#0f172a,#1e3a8a);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Segoe UI';
}

.login-box {
    width: 420px;
}

.login-card {
    border: none;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,.30);
}

.login-header {
    background: #fff;
    text-align: center;
    padding: 30px;
}

    .login-header img {
        width: 80px;
        margin-bottom: 15px;
    }

    .login-header h3 {
        font-weight: 700;
        margin-bottom: 5px;
    }

    .login-header p {
        color: #666;
        margin: 0;
    }

.login-body {
    padding: 30px;
}

.form-control {
    height: 45px;
}

.btn-login {
    height: 45px;
    font-weight: 600;
}

.footer-text {
    text-align: center;
    color: #777;
    font-size: 13px;
    margin-top: 20px;
}