* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #fafafa;
    font-family: "Noto Serif JP", serif;
    color: #3c2415;
}

header {
    background-color: #ffffff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 60px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header__logo img {
    width: 100px;
}

.header__nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav__links a {
    text-decoration: none;
    color: #c9a84c;
}

.hero {
    position: relative;
    height: 100vh;
    background-image: url(../images/hero.jpg);
    background-size: cover;
    background-position: center;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
}

.hero__content {
    position: absolute;
    bottom: 40px;
    left: 40px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1;
}

.main__text {
    font-size: 40px;
    color: #ffffff;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.sub__text {
    font-size: 25px;
    color: #ffffff;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    margin-top: 10px;
}

.hero__btn {
    display: inline-block;
    background-color: #c9a84c;
    color: #ffffff;
    text-decoration: none;
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 18px;
    margin-top: 20px;
    align-self: flex-start;
}

.worries {
    background-color: #3c2415;
    padding: 80px 40px;
    text-align: center;
    color: #ffffff;
}

.worries h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.worries__list {
    list-style: none;
}

.worries__list li {
    font-size: 20px;
    margin-bottom: 15px;
}

.worries__list li::before {
    content: "✓";
    color: #c9a84c;
    margin-right: 10px;
}

.worries__text {
    margin-top: 30px;
    font-size: 25px;
}

.worries__sp {
    display: none;
}

.features {
    background-color: #fafafa;
    padding: 80px 40px;
    align-items: center;
    text-align: center;
}

.features h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.features__list {
    display: flex;
    gap: 30px;
}

.features__item {
    width: 33%;
}

.features__item h3 {
    font-size: 20px;
    margin: 15px 0 10px;
    color: #3c2415;
}

.features__item img {
    object-fit: cover;
    width: 100%;
    height: 250px;
}

.features__item p {
    font-size: 16px;
    line-height: 1.8;
    color: #6b4c2a;
}

.product {
    background-color: #fafafa;
    padding: 80px 40px;
    text-align: center;
}

.product h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.product__content {
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

.product img {
    width: 45%;
}

.product__info {
    width: 55%;
    text-align: left;
}

.product h3 {
    font-size: 25px;
    margin-bottom: 20px;
}

.product p {
    font-size: 18px;
    margin-bottom: 20px;

}

.product__detail {
    display: flex;
    flex-direction: column;
    gap: 0px;
    font-size: 18px;
}

.product__btn {
    display: inline-block;
    background-color: #c9a84c;
    color: #ffffff;
    text-decoration: none;
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 18px;
    margin-top: 30px;
}

.review {
    background-color: #fafafa;
    padding: 80px 40px;
    text-align: center;
}

.review h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.review__list {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.review__item {
    background-color: #ffffff;
    border: 1px solid #e0d5c5;
    border-radius: 10px;
    padding: 30px;
    width: 30%;
    text-align: left;
}

.review__sters {
    font-size: 24px;
    color: #c9a84c;
    margin: 15px;
}

.review__title {
    font-size: 20px;
    margin-bottom: 15px;
}

.review__text {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.review__author {
    font-size: 14px;
    color: #6b4c2a;
}

.faq {
    background-color: #fafafa;
    padding: 80px 40px;
    text-align: center;
}

.faq h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.faq__item {
    text-align: left;
    display: flex;
    flex-direction: column;
    border: 1px solid #e0d5c5;
    border-radius: 10px;
    padding: 30px;
    max-width: 800px;
    margin: 0 auto 20px;
}

.faq__question {
    font-size: 20px;
    color: #3c2415;
    cursor: pointer;
}

.faq__answer {
    font-size: 15px;
    color: #6b4c2a;
    margin-top: 15px;
    line-height: 1.8;
    display: none;
}

.faq__answer.active {
    display: block;
}

.cta {
    background-color: #3c2415;
    padding: 80px 40px;
    text-align: center;
    color: #ffffff;
}

.cta h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.cta__text {
    font-size: 30px;
    margin-bottom: 20px;
}

.cta img {
    width: 70%;
}

.cta__price--old {
    text-decoration: line-through;
    color: #999999;
}

.cta__price--new {
    font-size: 30px;
    color: #c9a84c;
}

.cta__btn {
    display: inline-block;
    background-color: #c9a84c;
    color: #ffffff;
    text-decoration: none;
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 18px;
    margin-top: 20px;
    align-self: flex-start;
}

footer {
    padding: 80px 40px;
    background-color: #3c2415;
    display: flex;
    flex-direction: column;
    gap: 40px;
    justify-content: space-between;
    align-items: center;
}

.footer__logo img {
    width: 100px;
}

.footer__nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
}

.footer__nav a,.footer__copyright {
    color: #ffffff;
}

html {
    scroll-behavior: smooth;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 100;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: #3c2415;
}

@media (max-width: 768px) {
    header {
        padding: 15px 20px;
        position: relative;
        z-index: 100;
    }

    .header__logo img {
        width: 80px;
    }

    .hero {
        height: 60vh;
    }

    .main__text {
        font-size: 28px;
    }

    .sub__text {
        font-size: 16px;
    }

    .worries {
        padding: 60px 20px;
    }

    .worries h2 {
        font-size: 26px;
    }

    .worries__list li {
        font-size: 19px;
    }

    .worries__sp {
        display: block;
    }

    .features {
        padding: 60px 20px;
    }

    .features__list {
        flex-direction: column;
        align-items: center;
    }

    .features__item {
        width: 100%;
    }

    .product {
        padding: 60px 20px;
    }

    .product h2 {
        font-size: 38px;
    }

    .product h3 {
        font-size: 23px;
    }

    .product p {
        font-size: 19px;
    }

    .product__content {
        flex-direction: column;
    }

    .product img {
        width: 100%;
    }

    .product__info {
        width: 100%;
    }

    .review {
        padding: 60px 20px;
    }

    .review__list {
        flex-direction: column;
        align-items: center;
    }

    .review__item {
        width: 100%;
    }

    .faq {
        padding: 60px 20px;
    }

    .faq__item {
        padding: 20px;
    }

    .cta {
        padding: 60px 20px;
    }

    .cta img {
        width: 100%;
    }

    .cta h2 {
        font-size: 38px;
    }

    .cta__text {
        font-size: 22px;
    }

    footer {
        padding: 40px 20px;
    }

    .footer__nav ul {
        flex-direction: column;
        gap: 15px;
    }

    .hamburger {
        display: flex;
    }

    .header__nav {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: #3c2415;
        padding: 20px;
    }

    .header__nav.active {
        display: block;
    }

    .nav__links {
        flex-direction: column;
        gap: 20px;
    }
}