:root {
    --primary-color: #002147;
    --secondary-color: #1a73e8;
    --accent-color: #f8f9fa;
}

body {
    background: linear-gradient(135deg, #002147 0%, #1a365d 100%);
    font-family: 'Poppins', 'Source Sans Pro', sans-serif;
}

.login-box {
    width: 400px;
    margin: 2% auto;
}

.login-logo {
    margin-bottom: 30px;
    text-align: center;
}

    .login-logo img {
        width: 180px;
        height: auto;
        transition: transform 0.3s ease;
    }

        .login-logo img:hover {
            transform: scale(1.05);
        }

.login-box-body {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 33, 71, 0.3);
    padding: 30px;
    border-top: 5px solid var(--secondary-color);
}

.login-box-msg {
    margin: 0 0 25px;
    text-align: center;
    font-size: 16px;
    color: #555;
}

.form-control {
    height: 45px;
    border-radius: 4px;
    border: 1px solid #ddd;
    padding-left: 40px;
    transition: all 0.3s;
}

    .form-control:focus {
        border-color: var(--secondary-color);
        box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
    }

.has-feedback .form-control-feedback {
    top: 10px;
    color: #999;
}

.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    height: 45px;
    font-weight: 500;
    letter-spacing: 0.5px;
    border-radius: 4px;
    transition: all 0.3s;
}

    .btn-primary:hover {
        background-color: #0d5bba;
        border-color: #0d5bba;
        transform: translateY(-2px);
    }

.btn-block {
    display: block;
    width: 100%;
}

.back-to-login {
    text-align: center;
    margin-top: 20px;
}

    .back-to-login a {
        color: var(--secondary-color);
        text-decoration: none;
    }

        .back-to-login a:hover {
            text-decoration: underline;
        }

.input-group-addon {
    background-color: #f8f9fa;
}