* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    padding: 40px 30px;
}

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

    .login-header h1 {
        font-size: 28px;
        font-weight: 700;
        color: #2d3748;
        margin-bottom: 8px;
    }

    .login-header p {
        color: #718096;
        font-size: 14px;
    }

.form-group {
    margin-bottom: 20px;
}

.form-label {
    color: #2d3748;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-control {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 14px;
    transition: all 0.3s ease;
}

    .form-control:focus {
        border-color: #667eea;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    }

.btn-login {
    width: 100%;
    padding: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

    .btn-login:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
    }

.form-check {
    margin-bottom: 20px;
}

.form-check-input:checked {
    background-color: #667eea;
    border-color: #667eea;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    border-top: 1px solid #e2e8f0;
    padding-top: 20px;
}

    .login-footer a {
        color: #667eea;
        text-decoration: none;
        font-weight: 600;
        transition: color 0.3s ease;
    }

        .login-footer a:hover {
            color: #764ba2;
        }

.alert {
    margin-bottom: 20px;
    border-radius: 8px;
    border: none;
}

.alert-danger {
    background-color: #fed7d7;
    color: #c53030;
}