:root {
    --primary-color: #163f7a;
    --body-color: #fdfdfd;
    --border-color: #ebecee;
}

body {
    background: linear-gradient(to bottom, #bddae5, #26d0ce);
    background-attachment: fixed;
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

.login-card {
    background-color: var(--body-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    width: 90vw;
    max-width: 450px;
    margin: 20px;
}

.login-logo {
    text-align: center;
    margin-bottom: 25px;
}

.card-logo {
    max-width: 180px; /* Increased size */
    height: auto;
    display: block;
    margin: 0 auto;
}

.login-card h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
    color: var(--primary-color);
}

.form-label {
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
    display: block;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    margin-bottom: 20px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

    .form-control:focus {
        outline: none;
        border-color: var(--primary-color);
        box-shadow: 0 0 0 2px rgba(22, 63, 122, 0.1);
    }

.login-btn {
    width: 100%;
    padding: 14px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.3s;
}

    .login-btn:hover {
        background-color: #0d2c5a;
    }

.forgot-password {
    display: block;
    text-align: center;
    margin-top: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
}

    .forgot-password:hover {
        text-decoration: underline;
    }

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.text-danger {
    color: #dc3545;
    font-size: 13px;
    margin-top: 5px;
    display: block;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 30px 25px;
        margin: 15px;
    }

    .card-logo {
        max-width: 140px;
    }

    .login-card h1 {
        font-size: 22px;
    }
}