#idUseCase_start_section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#idUseCase_start_section h2,
#idUseCase_start_section h3 {
    color: var(--secondary-text-color);
    margin-bottom: 1%;
}

#idUseCase_start_section p,
#idUseCase_start_section li {
    font-family: 'Kodchasan';
    line-height: 160%;
}

#idUseCase_start_section p {
    text-align: justify;
}

#idUseCase_start_section ul {
    margin: 2% 0 0 1.2rem;
}

#idUseCase_start_section li {
    font-size: clamp(1rem, 1.1vw + 0.2rem, 1.25rem);
    margin-bottom: 8px;
    padding-left: 6px;
}

#idUseCase_start_section img {
    width: 100%;
    border-radius: 5px;
    opacity: 0.75;
    box-shadow:
        5px 5px 25px var(--secondary-bg-color),
        -5px 0 10px var(--primary-bg-color),
        5px 0 10px var(--primary-bg-color);
}

.usecase_pre_main_1_container {
    width: 80%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.usecase_subheading {
    width: 100%;
    margin-top: 4%;
    display: flex;
    flex-direction: column;
}

.usecase_main_1_container,
.usecase_main_2_container,
.usecase_main_3_container,
.usecase_main_4_container {
    width: 80%;
    margin-top: 3%;
    display: flex;
    flex-direction: column;
}

.usecase_main_1 {
    width: 100%;
    padding: 5px;
    display: flex;
    gap: 15px;
}

.usecase_main_1_text {
    width: 65%;
    margin-right: 25px;
}

.usecase_main_1_img {
    width: 35%;
}

.usecase_cards {
    width: 100%;
    margin: 5% auto 6% auto;
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

.usecase_card {
    width: 30%;
    padding: 30px 28px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    background-image: radial-gradient(
        at bottom right,
        var(--primary-text-color),
        var(--secondary-bg-color),
        var(--primary-bg-color),
        var(--secondary-text-color)
    );
    border-left: 10px solid rgba(245, 245, 245, 0.8);
    border-radius: 20px;
    transition: 250ms ease, box-shadow 250ms ease;
}

.usecase_card_header {
    margin-bottom: 10px;
}

/* .usecase_card + .usecase_card {
    margin-top: 10px;
} */

.usecase_card:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.25);
}

.usecase_card_header {
    text-align: center;
    margin-bottom: 12px;
}

.usecase_card_content ul {
    margin: 5% 0 0 20px;
}

.usecase_card_content ul li {
    list-style-type: square;
}

.usecase_main_3_text,
.usecase_main_4_text {
    width: 100%;
}

.usecase-button-wrap {
    margin-top: 30px;
    display: flex;
    justify-content: flex-start;
}

#idUseCaseButton {
    padding: 15px 28px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-family: 'Orbitron';
    font-size: clamp(0.95rem, 0.5vw + 0.5rem, 1.1rem);
    background-color: var(--secondary-text-color);
    color: var(--primary-text-color);
    border-radius: 0px 50px 50px;
    transition: 0.4s ease-in-out;
    box-shadow:
        inset 0 0 5px var(--primary-text-color),
        inset 2px 0 5px var(--primary-text-color),
        inset -5px 0 5px var(--secondary-text-color),
        0 0 5px var(--primary-text-color),
        -5px 0 10px var(--secondary-text-color),
        5px 0 10px var(--secondary-text-color);
}

#idUseCaseButton:hover {
    background-color: var(--secondary-bg-color);
    color: var(--primary-text-color);
}

.usecase_feature_image {
    width: 100%;
    max-width: 760px;
    margin: 24px auto 10px auto;
    display: block;
    border-radius: 10px;
    opacity: 0.95;
    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.18),
        0 0 0 1px rgba(255, 255, 255, 0.08);
}

.usecase_feature_image_wrap {
    margin-top: 18px;
    display: flex;
    justify-content: center;
}

.usecase_feature_note {
    max-width: 760px;
    margin: 10px auto 0 auto;
    font-size: clamp(0.95rem, 0.8vw + 0.2rem, 1.05rem);
    opacity: 0.9;
}

@media (max-width: 1100px) {
    .usecase_cards {
        flex-direction: column;
        gap: 30px;
    }
    .usecase_card {
        width: 100%;
    }
}

@media (max-width: 800px) {
    .usecase_main_1 {
        flex-direction: column-reverse;
        gap: 25px;
    }
    .usecase_main_1_text {
        width: 100%;
        margin: 5% auto;
    }
    .usecase_main_1_img {
        width: 100%;
        position: sticky;
        top: 100px;
        opacity: 0.6;
        z-index: -1;
    }
    .usecase_card {
        width: 100%;
        padding: 18px;
    }
    .usecase-button-wrap {
        width: 100%;
        justify-content: center;
    }
    #idUseCaseButton {
        width: 70%;
        font-weight: 600;
    }
    .usecase_feature_image {
        max-width: 100%;
        margin-top: 18px;
    }
    .usecase_feature_note {
        max-width: 100%;
    }
}