body {
    font-family: 'Inter', sans-serif;
    color: #333;
    background-color: #f4f7f6;
}

.main-content-section {
    margin-top: 120px;
    padding-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.about-us-container {
    width: 90%;
    max-width: 900px;
    padding: 30px;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(224, 224, 224, 0.5);
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.box-header {
    width: 100%;
    background-color: transparent;
    padding: 18px 30px;
    border-bottom: 1px solid rgba(224, 230, 236, 0.7);
    text-align: center;
    border-radius: 12px 12px 0 0;
    box-shadow: none;
    margin-top: -30px;
    margin-left: -30px;
    margin-right: -30px;
    margin-bottom: 30px;
}

.box-header h2 {
    font-size: 1.6em;
    font-weight: 600;
    color: #000000;
    margin: 0;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-family: 'Inter', sans-serif;
}

.gallery-content {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    justify-content: center;
}

.gallery-item {
    position: relative;
    width: 100%;
    padding-bottom: 100%;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
}

.gallery-item img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 8px;
    padding-bottom: 12px;
}

.gallery-item:hover .image-overlay {
    opacity: 1;
}

.image-overlay .view-image-button {
    color: #fff;
    padding: 6px 14px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.8em;
    font-weight: 600;
    border: none;
    cursor: pointer;
    opacity: 0;
    transform: translateY(5px);
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.gallery-item:hover .image-overlay .view-image-button {
    background-color: rgba(137, 207, 240, 0.7);
    color: #fff;
    opacity: 1;
    transform: translateY(0);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.12);
}

.view-image-button i {
    font-size: 1em;
    margin-right: 0;
}

.popup-overlay {
    display: none;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.simple-popup-content {
    background-color: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    width: 80%;
    max-width: 80vw;
    max-height: 80vh;
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.popup-image {
    max-width: 100%;
    max-height: 100%;
    display: block;
    border-radius: 0;
    object-fit: contain;
}

.simple-close-btn {
    color: rgba(255, 255, 255, 0.8);
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 32px;
    font-weight: normal;
    cursor: pointer;
    background-color: transparent;
    border-radius: 0;
    width: auto;
    height: auto;
    padding: 5px 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1002;
    line-height: 1;
    transition: color 0.2s ease;
}

.simple-close-btn:hover,
.simple-close-btn:focus {
    color: #fff;
    background-color: transparent;
}

.nav-arrow {
    color: rgba(255, 255, 255, 0.8);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 48px;
    font-weight: normal;
    cursor: pointer;
    background-color: transparent;
    border-radius: 0;
    width: auto;
    height: auto;
    padding: 10px 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1001;
    transition: color 0.2s ease;
    user-select: none;
}

.nav-arrow:hover {
    background-color: transparent;
    color: #fff;
}

.nav-arrow.left {
    left: 20px;
}

.nav-arrow.right {
    right: 20px;
}

@media (max-width: 768px) {
    .main-content-section {
        margin-top: 110px;
        padding-bottom: 40px;
    }

    .about-us-container {
        padding: 20px;
        width: 95%;
    }

    .box-header {
        margin-top: -20px;
        margin-left: -20px;
        margin-right: -20px;
        padding: 15px 20px;
    }

    .box-header h2 {
        font-size: 1.3em;
        letter-spacing: 0.8px;
    }

    .gallery-content {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
    }

    .gallery-item {
        border-radius: 6px;
    }

    .image-overlay {
        border-radius: 6px;
        padding-bottom: 10px;
    }

    .image-overlay .view-image-button {
        padding: 5px 12px;
        font-size: 0.7em;
        transform: translateY(3px);
    }
    .view-image-button i {
        font-size: 0.9em;
    }

    .nav-arrow {
        font-size: 38px;
        padding: 8px 12px;
    }
    .nav-arrow.left {
        left: 10px;
    }
    .nav-arrow.right {
        right: 10px;
    }

    .simple-popup-content {
        width: 90%;
        max-width: 90vw;
        max-height: 90vh;
    }

    .simple-close-btn {
        font-size: 28px;
        top: 10px;
        right: 10px;
        padding: 3px 8px;
    }
}

@media (max-width: 480px) {
    .box-header h2 {
        font-size: 1.2em;
        letter-spacing: 0.8px;
    }

    .gallery-content {
        grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
        gap: 10px;
    }

    .gallery-item {
        border-radius: 4px;
    }

    .image-overlay {
        border-radius: 4px;
        padding-bottom: 6px;
    }

    .image-overlay .view-image-button {
        padding: 4px 10px;
        font-size: 0.65em;
        transform: translateY(2px);
    }
    .view-image-button i {
        font-size: 0.8em;
    }

    .nav-arrow {
        font-size: 32px;
        padding: 6px 10px;
    }
    .nav-arrow.left {
        left: 5px;
    }
    .nav-arrow.right {
        right: 5px;
    }

    .simple-popup-content {
        width: 95%;
        max-width: 95vw;
        max-height: 95vh;
    }

    .simple-close-btn {
        font-size: 24px;
        top: 5px;
        right: 5px;
        padding: 2px 6px;
    }
}