/* INTRO */
.intro {
    position: relative;
    line-height: 0;
}

.intro_photo {
    width: 100%;
    height: 95vh;
    object-fit: cover;
}

.intro_heading {
    opacity: 0;
    translate: 20% 0;
    line-height: normal;
    color: #fff;
    position: absolute;
    top: 20%;
    left: 15%;
    font-size: 7svh;
    width: 40vw;
    text-shadow: #000 1px 0 10px;
}


/* MAIN TASKS SECTION */
.main_tasks {
    margin: 4rem 10vw 1rem;
    display: flex;
    height: 70svh;
    gap: 1rem;
}

.main_tasks_photo {
    border-radius: 16px;
    height: 100%;
    width: calc(50% - 0.5rem);
    object-fit: cover;
}

.main_tasks_content {
    opacity: 0;
    translate: 10% 0;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    width: calc(50% - 0.5rem);
    height: 100%;
    background: linear-gradient(90deg, var(--main-color-start) 0%, var(--main-color-end) 100%);
    padding: 4rem;
    color: #fff;
    border-radius: 16px;
}

.main_tasks_content_item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.main_tasks_content_icon {
    width: 3rem;
    height: 3rem;
}

.main_tasks_heading {
    font: var(--heading2-font);
}

.main_tasks_paragraph {
    line-height: 140%;
}


/* SERVICES TYPES SECTION */
.services_types {
    display: flex;
    margin: 0 10vw 4rem;
    gap: 1rem;
    height: 70svh;
}

.services_types_heading {
    font: var(--heading2-font);
}

.services_types_content {
    opacity: 0;
    translate: -10% 0;
    width: calc(50% - 0.5rem);
    height: 100%;
    display: flex;
    flex-direction: column;
    border-radius: 16px;
    background: linear-gradient(90deg, var(--main-color-start) 0%, var(--main-color-end) 100%);
    padding: 4rem;
    gap: 3rem;
    color: #fff;
}

.services_types_photo {
    width: calc(50% - 0.5rem);
    border-radius: 16px;
    height: 100%;
    object-fit: cover;
}

.services_types_list {
    list-style-type: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.services_types_list_item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.services_types_list_item_icon {
    width: 3rem;
    height: 3rem;
}

.services_types_list_item_text {
    font-size: 1rem;
}


/* ABOUT SECTION */
.about {
    background: linear-gradient(90deg, var(--main-color-start) 0%, var(--main-color-end) 100%);
    padding: 4rem 10vw;
    color: #fff;
    display: flex;
    gap: 4rem;
}

.about-vid {
    border-radius: 1rem;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about_heading {
    font: var(--heading2-font);
}

.first_paragraph {
    font-size: 1.25rem;
}

.second_paragraph {
    font-size: 1.25rem;
}

.about_cards {
    display: flex;
    gap: 1rem;
}

.about_card {
    opacity: 0;
    translate: 0 50%;
    background-color: #fff;
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    padding: 2rem;
    border-radius: 16px;
}

.advantage_heading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font: var(--heading3-font);
    color: var(--main-grey);
}

.advantage_icon {
    height: 28px;
}

.advantage_text {
    color: var(--secondary-grey);
}


/* SERVICES SECTION */
.services {
    padding: 4rem 10vw;
    display: flex;
    flex-direction: column;
}

.section_heading {
    margin-bottom: 1.5rem;
    font: var(--heading2-font);

    background: linear-gradient(to right, var(--main-color-start), var(--main-color-end));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

.services_article {
    opacity: 0;
    display: flex;
    gap: 4rem;
    border: 1px solid #000;
    border-radius: 16px;
    padding: 2rem;
}

.services_article:not(:last-child) {
    margin-bottom: 1rem;
}

.services_article_photo {
    flex-shrink: 0;
    border-radius: 16px;
    height: 50vh;
    object-fit: fill;
}

.services_article_content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.services_article_content_heading {
    font: var(--heading3-font);
    color: var(--accent-color);
    text-transform: uppercase;
}

.services_article_content_desc {
    color: var(--main-grey);
    font: var(--heading4-font);
}

.services_article_content_paragraph {
    color: var(--secondary-grey);
}

.services_article_content_list {
    color: rgb(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-left: 3rem;
}


/* CLIENTS SECTION */
.clients {
    padding: 4rem 10vw;
}

.clients_heading {
    text-align: center;
    margin-bottom: 2rem;
    font: var(--heading2-font);
    background: linear-gradient(to right, var(--main-color-start), var(--main-color-end));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}

.clients_list {
    list-style-type: none;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-row-gap: 2rem;
    justify-items: center;
    align-items: center;
}

.clients_list_item_link {
    display: inline-block;
    cursor: pointer;
}

.clients_list_item_photo {
    filter: grayscale(100%);
    width: 100%;
    height: 100%;
}

.clients_list_item_link:hover {
    .clients_list_item_photo {
        filter: grayscale(0);
    }
}


/* CERTIFICATES SECTION */
.certificates {
    background: linear-gradient(90deg, var(--main-color-start) 0%, var(--main-color-end) 100%);
    padding: 4rem 10vw;
    position: relative;
}

.certificates_heading {
    text-align: center;
    color: #fff;
    margin-bottom: 1.5rem;
    font: var(--heading2-font);
}

.certificates_list {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    overflow-y: hidden;
}

.certificates_list::-webkit-scrollbar {
    display: none;
  }
  
.certificates_list {
    -ms-overflow-style: none;
    scrollbar-width: none;
    list-style-type: none;
}

.certificates_list_item {
    height: 50vh;
    flex-shrink: 0;
    border-radius: 1rem;
    overflow: hidden;
}

.certificates_list_item_photo {
    height: 100%;
    object-fit: contain;
}

.slider_control_btn {
    padding: 1rem;
    outline: none;
    border: none;
    border-radius: 50%;
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgb(0, 0, 0, 0.6);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    opacity: 0.6;
}

.slider_control_btn:hover {
    opacity: 1;
}

.left {
    transform: rotate(180deg);
    padding-left: 0.25rem;
}

.right {
    padding-left: 0.25rem;
}

.left_btn {
    opacity: 0;
    translate: -100% 0;
    left: 3rem;
}

.right_btn {
    opacity: 0;
    translate: 100% 0;
    right: 3rem;
}

@media screen and (max-width: 960px) {
    /* INTRO */
    .intro_photo {
        height: 50vh;
        object-fit: cover;
    }
    
    .intro_heading {
        font-size: 8vw;
        left: 10%;
    }


    /* MAIN TASKS SECTION */
    .main_tasks {
        margin-left: 5vw;
        margin-right: 5vw;
        flex-direction: column;
        gap: 2rem;
        height: unset;
    }

    .main_tasks_photo {
        display: none;
    }

    .main_tasks_content {
        gap: 2rem;
        width: 100%;
        padding: 2rem;
    }

    .main_tasks_heading {
        font-size: 2rem;
    }

    .main_tasks_paragraph {
        font-size: 0.875rem;
    }


    /* SERVICES TYPES SECTION */
    .services_types {
        height: unset;
        margin-left: 5vw;
        margin-right: 5vw;
        flex-direction: column;
    }

    .services_types_heading {
        font-size: 1.125rem;
    }

    .services_types_content {
        padding: 2rem;
        height: unset;
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 2rem;
    }

    .services_types_photo {
        order: -1;
        height: unset;
        width: 100%
    }

    .services_types_list {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .services_types_list_item_text {
        font-size: 0.825rem;
    }


    /* ABOUT SECTION */
    .about {
        padding: 3rem 5vw;
        flex-direction: column;
        gap: 1rem;
    }

    .about-vid {
        width: 100%;
        height: auto;
    }

    .about_cards {
        flex-direction: column;
    }

    .first_paragraph {
        font-size: 1rem;
    }
    
    .second_paragraph {
        font-size: 1rem;
    }


    /* SERVICES SECTION */
    .services {
        padding: 3rem 5vw;
    }

    .services_article {
        flex-direction: column;        
        gap: 1rem;
        padding: 1.125rem;
    }

    .services_article_photo {
        width: 100%;
        height: 50vh;
    }

    .services_article_content_heading {
        font-size: 1.5rem;
    }

    .services_article_content_desc {
        font-size: 1.25rem;
    }

    .services_article_content_paragraph {
        width: 100%;
        font-size: 0.875rem;
    }

    .services_article_content_list {
        padding-left: 2rem;
        font-size: 0.875rem;
    }


    /* CLIENTS SECTION */
    .clients {
        padding: 3rem 5vw;
    }

    .clients_list {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .clients_list_item_photo {
        filter: unset;
        width: 100%;
    }


    /* CERTIFICATES SECTION */
    .slider_control_btn {
        display: none;
    }

    .certificates {
        padding: 3rem 5vw;
    }
}