/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

/* Body */
body {
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 40px 20px;
}

header h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

header p {
    font-size: 20px;
    margin-top: 10px;
}

/* About Us Section */
.about-us {
    background-color: #fff;
    padding: 40px 0;
}

/* Article Section */
article {
    margin: 20px 0;
}

/* Section Titles */
h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #2c3e50;
}

ul {
    margin-left: 20px;
    list-style-type: disc;
}

ul li {
    margin-bottom: 10px;
}

/* Strong Text */
strong {
    font-weight: bold;
}

/* Media Queries for Responsive Design */

/* Mobile View (320px to 600px) */
@media screen and (max-width: 600px) {
    header h1 {
        font-size: 28px;
    }

    header p {
        font-size: 16px;
    }

    article {
        padding: 0 10px;
    }

    h2 {
        font-size: 22px;
    }

    ul {
        margin-left: 15px;
    }

    ul li {
        font-size: 14px;
    }

    strong {
        font-size: 14px;
    }
}

/* Tablet View (601px to 900px) */
@media screen and (min-width: 601px) and (max-width: 900px) {
    header h1 {
        font-size: 32px;
    }

    header p {
        font-size: 18px;
    }

    article {
        padding: 0 15px;
    }

    h2 {
        font-size: 24px;
    }

    ul li {
        font-size: 16px;
    }
}

/* Desktop View (900px and above) */
@media screen and (min-width: 900px) {
    header h1 {
        font-size: 36px;
    }

    header p {
        font-size: 20px;
    }

    article {
        padding: 0 30px;
    }

    h2 {
        font-size: 28px;
    }

    ul li {
        font-size: 18px;
    }
}