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

body {
    background: #f5f7fb;
}

.guide {
    width: 90%;
    max-width: 1000px;
    margin: 40px auto;
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0, 0, 0, .1);
}

.guide h1 {
    text-align: center;
    margin-bottom: 25px;
    color: #003366;
}

.guide h2 {
    margin-top: 25px;
    color: #0055aa;
}

.guide p {
    margin-top: 10px;
    line-height: 28px;
}

.guide ul,
.guide ol {
    margin-left: 25px;
    margin-top: 10px;
    line-height: 30px;
}

.language-btn {
    text-align: center;
    margin-bottom: 25px;
}

.language-btn button {
    padding: 10px 20px;
    margin: 5px;
    border: none;
    background: #0055aa;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}

.language-btn button:hover {
    background: #003366;
}


/* ===========================
   Laptop (992px and below)
=========================== */

@media (max-width: 992px) {
    .guide {
        width: 92%;
        padding: 25px;
    }
    .guide h1 {
        font-size: 30px;
    }
    .guide h2 {
        font-size: 24px;
    }
    .guide p,
    .guide ul,
    .guide ol {
        font-size: 16px;
        line-height: 28px;
    }
}


/* ===========================
   Tablet (768px and below)
=========================== */

@media (max-width: 768px) {
    .guide {
        width: 95%;
        padding: 20px;
        margin: 25px auto;
    }
    .guide h1 {
        font-size: 28px;
        line-height: 1.3;
    }
    .guide h2 {
        font-size: 22px;
    }
    .guide p {
        font-size: 15px;
        line-height: 26px;
    }
    .guide ul,
    .guide ol {
        margin-left: 20px;
        font-size: 15px;
        line-height: 28px;
    }
    .language-btn button {
        padding: 10px 18px;
        font-size: 15px;
    }
}


/* ===========================
   Mobile (480px and below)
=========================== */

@media (max-width: 480px) {
    .guide {
        width: 96%;
        padding: 18px;
        margin: 20px auto;
    }
    .guide h1 {
        font-size: 24px;
    }
    .guide h2 {
        font-size: 20px;
    }
    .guide p {
        font-size: 14px;
        line-height: 24px;
    }
    .guide ul,
    .guide ol {
        margin-left: 18px;
        font-size: 14px;
        line-height: 24px;
    }
    .language-btn {
        display: flex;
        justify-content: center;
        gap: 10px;
        flex-wrap: wrap;
    }
    .language-btn button {
        width: 100%;
        max-width: 200px;
        padding: 10px;
        font-size: 14px;
    }
}


/* ===========================
   Small Phone (375px and below)
=========================== */

@media (max-width: 375px) {
    .guide {
        width: 98%;
        padding: 15px;
    }
    .guide h1 {
        font-size: 22px;
    }
    .guide h2 {
        font-size: 18px;
    }
    .guide p,
    .guide ul,
    .guide ol {
        font-size: 13px;
        line-height: 22px;
    }
    .language-btn button {
        font-size: 13px;
        padding: 9px;
    }
}


/* ===========================
   Extra Small Phone (320px and below)
=========================== */

@media (max-width: 320px) {
    .guide {
        padding: 12px;
    }
    .guide h1 {
        font-size: 20px;
    }
    .guide h2 {
        font-size: 17px;
    }
    .guide p,
    .guide ul,
    .guide ol {
        font-size: 12px;
        line-height: 20px;
    }
    .language-btn button {
        font-size: 12px;
        padding: 8px;
    }
}