.about-us-section {
    background: url('../images/everest3.jpeg') no-repeat center center/cover;
    padding: 10vh 20px; /* Reduced padding for responsiveness */
    color: #f7f7f7;
    text-align: center;
    position: relative;
    min-height: 80vh;
    font-family: 'Montserrat', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    overflow: hidden; /* Prevent overflow */
}

.about-us-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6); /* Darker overlay for readability */
    z-index: 1;
}

.content {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.15); /* Slightly lighter background */
    border-radius: 15px;
    box-shadow: 0px 10px 30px rgba(0, 0, 0, 0.3);
    box-sizing: border-box;
    text-align: center;
}

.about-title {
    font-size: 2.8rem;
    margin-bottom: 20px;
    color: #f7f7f7;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
}

.about-intro {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #e3e3e3;
    line-height: 1.8;
}

.about-us-mission-vision {
    display: flex;
    justify-content: space-around;
    margin-top: 10px;
    gap: 30px;
    flex-wrap: wrap;
    text-align: left;
}

.vision, .mission {
    background-color: rgba(255, 255, 255, 0.15);
    padding: 20px;
    border-radius: 10px;
    flex: 1;
    min-width: 280px;
    max-width: 450px;
    color: #f7f7f7;
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.vision:hover, .mission:hover {
    transform: translateY(-10px);
    box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.3);
}

.vision h3, .mission h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: #ffb400;
    font-weight: bold;
}

.why-choose-us {
    list-style: none;
    padding: 0;
    margin-top: 40px;
    text-align: left;
    max-width: 600px;
    margin: 0 auto;
}

.why-choose-us li {
    font-size: 1.3rem;
    color: #f7f7f7;
    padding: 3px 0;
    position: relative;
    line-height: 1.8;
}

.why-choose-us li::before {
    content: '✓';
    color: #ffb400;
    font-size: 1.4rem;
    position: absolute;
    left: -20px;
    top: 0;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .about-us-mission-vision {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .about-title {
        font-size: 2.2rem;
    }

    .about-intro {
        font-size: 1.1rem;
    }

    .vision, .mission {
        text-align: center;
    }

    .why-choose-us li {
        font-size: 1.1rem;
    }
}