@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Noto+Serif+SC:wght@300;400;500;600&family=Noto+Sans+SC:wght@300;400;500&display=swap');

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

:root {
    --color-white: #FFFFFF;
    --color-light-gray: #F5F5F5;
    --color-dark-gray: #333333;
    --color-text: #222222;
    --color-text-secondary: #666666;
    --color-beige: #F3E9DF;
    --color-nude-pink: #E8D3D1;
    --color-misty-blue: #D1E5E8;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--color-text);
    background-color: var(--color-white);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Noto Serif SC', serif;
    font-weight: 500;
    letter-spacing: 0.5px;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 20px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-light-gray);
    transition: var(--transition-smooth);
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 1px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
}

nav ul li a {
    text-decoration: none;
    color: var(--color-text);
    font-size: 16px;
    font-weight: 400;
    position: relative;
    transition: var(--transition-smooth);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-nude-pink);
    transition: var(--transition-smooth);
}

nav ul li a:hover {
    color: var(--color-nude-pink);
}

nav ul li a:hover::after {
    width: 100%;
}

main {
    margin-top: 80px;
}

.hero-section {
    width: 100%;
    height: 90vh;
    position: relative;
    overflow: hidden;
}

.slider {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.slide-caption {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    font-family: 'Noto Serif SC', serif;
    font-size: 48px;
    font-weight: 300;
    text-align: center;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
}

.slider-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.slider-dot.active {
    background-color: var(--color-white);
    transform: scale(1.2);
}

.featured-section {
    padding: 80px 5%;
    background-color: var(--color-light-gray);
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: var(--color-text);
    letter-spacing: 1px;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.featured-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.featured-item img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.featured-item:hover img {
    transform: scale(1.03);
}

.featured-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    color: var(--color-white);
    transform: translateY(100%);
    transition: var(--transition-smooth);
}

.featured-item:hover .featured-caption {
    transform: translateY(0);
}

.featured-caption p {
    font-size: 18px;
    font-weight: 300;
    letter-spacing: 0.5px;
}

.quote-section {
    padding: 100px 5%;
    text-align: center;
    background-color: var(--color-beige);
}

.quote-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 28px;
    font-weight: 300;
    color: var(--color-text);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
    letter-spacing: 1px;
}

.philosophy-content {
    padding: 100px 5%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.philosophy-image {
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.philosophy-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.philosophy-text h2 {
    font-size: 42px;
    margin-bottom: 40px;
    color: var(--color-text);
}

.philosophy-item {
    margin-bottom: 40px;
}

.philosophy-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--color-dark-gray);
}

.philosophy-item p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.design-process {
    padding: 100px 5%;
    background-color: var(--color-light-gray);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    max-width: 1400px;
    margin: 60px auto 0;
}

.process-item img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.collection-header {
    padding: 100px 5% 60px;
    text-align: center;
}

.collection-tabs {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 40px 5%;
    border-bottom: 1px solid var(--color-light-gray);
}

.tab-button {
    background: none;
    border: none;
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 18px;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 10px 20px;
    position: relative;
    transition: var(--transition-smooth);
}

.tab-button::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-dark-gray);
    transition: var(--transition-smooth);
}

.tab-button:hover,
.tab-button.active {
    color: var(--color-text);
}

.tab-button.active::after {
    width: 100%;
}

.collection-grid {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 50px;
    padding: 80px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.collection-grid.active {
    display: grid;
}

.collection-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.collection-item img {
    width: 100%;
    height: 550px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.collection-item:hover img {
    transform: scale(1.03);
}

.collection-caption {
    margin-top: 20px;
    text-align: center;
}

.collection-caption h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--color-text);
}

.collection-caption p {
    font-size: 14px;
    color: var(--color-text-secondary);
}

.material-tag {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 8px 16px;
    font-size: 12px;
    letter-spacing: 0.5px;
    opacity: 0;
    transition: var(--transition-smooth);
}

.collection-item:hover .material-tag {
    opacity: 1;
}

.detail-section {
    padding: 100px 5%;
    background-color: var(--color-light-gray);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 60px;
    max-width: 1400px;
    margin: 60px auto 0;
}

.detail-item img {
    width: 100%;
    height: 600px;
    object-fit: cover;
}

footer {
    padding: 40px 5%;
    text-align: center;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-light-gray);
    font-size: 14px;
    color: var(--color-text-secondary);
}

@media (max-width: 768px) {
    header {
        padding: 15px 4%;
    }

    .logo {
        font-size: 22px;
    }

    nav ul {
        gap: 20px;
    }

    nav ul li a {
        font-size: 14px;
    }

    .slide-caption {
        font-size: 32px;
    }

    .section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }

    .featured-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .featured-item img {
        height: 400px;
    }

    .quote-text {
        font-size: 22px;
    }

    .philosophy-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 60px 4%;
    }

    .philosophy-image {
        height: 400px;
    }

    .philosophy-text h2 {
        font-size: 32px;
    }

    .collection-tabs {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

    .collection-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 60px 4%;
    }

    .detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .detail-item img {
        height: 450px;
    }
}

@media (max-width: 480px) {
    .slide-caption {
        font-size: 24px;
    }

    .section-title {
        font-size: 24px;
    }

    .quote-text {
        font-size: 18px;
    }

    .philosophy-text h2 {
        font-size: 28px;
    }

    .philosophy-item h3 {
        font-size: 20px;
    }
}