/* Proposal 2: Modern Minimalist */
:root {
    --color-bg: #FFFFFF;
    --color-surface: #F9FAFB;
    --color-text: #111827;
    --color-text-light: #6B7280;
    --color-border: #E5E7EB;
    
    --font-en: 'Inter', sans-serif;
    --font-ja: 'Inter', 'Noto Sans JP', sans-serif;
}

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

body {
    font-family: var(--font-ja);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 30px 40px;
    z-index: 100;
    transition: background-color 0.3s ease, padding 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 40px;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-en);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.1em;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-family: var(--font-en);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-light);
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--color-text);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 40px;
    position: relative;
    max-width: 1600px;
    margin: 0 auto;
}

.hero-image-container {
    position: absolute;
    top: 0;
    right: 0;
    width: 55%;
    height: 100%;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: left center;
}

.hero-image-container::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, #FFFFFF 0%, rgba(255,255,255,0) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    padding-top: 100px;
}

.title-en {
    font-family: var(--font-en);
    font-size: 5rem;
    font-weight: 300;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.title-ja {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 40px;
    letter-spacing: 0.1em;
}

.hero-desc {
    font-size: 1rem;
    color: var(--color-text);
    margin-bottom: 60px;
    font-weight: 300;
}

.explore-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-en);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-bottom: 1px solid var(--color-text);
    padding-bottom: 5px;
    transition: gap 0.3s ease;
}

.explore-btn:hover {
    gap: 15px;
}

/* About Section */
.about {
    padding: 150px 0;
    background-color: var(--color-surface);
}

.section-heading {
    font-family: var(--font-en);
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 60px;
    letter-spacing: -0.02em;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text-blocks p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    font-weight: 300;
    color: var(--color-text-light);
}

.about-text-blocks p:last-child {
    margin-bottom: 0;
}

/* Collection Section */
.collection {
    padding: 150px 0;
}

.collection-header {
    margin-bottom: 80px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.collection-sub {
    font-family: var(--font-en);
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.quilt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 60px 40px;
}

.quilt-card {
    display: block;
    group: quilt;
}

.quilt-image-wrapper {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background-color: var(--color-surface);
    margin-bottom: 20px;
}

.quilt-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.quilt-card:hover .quilt-image-wrapper img {
    transform: scale(1.03);
}

.quilt-info {
    display: flex;
    flex-direction: column;
    text-align: center;
}

.quilt-title {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 5px;
}

.quilt-subtitle {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Footer */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--color-border);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
}

.footer-logo {
    font-family: var(--font-en);
    font-weight: 600;
    font-size: 1.5rem;
}

.footer-nav {
    display: flex;
    gap: 30px;
}

.footer-nav a {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.footer-nav a:hover {
    color: var(--color-text);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    color: var(--color-text-light);
    font-size: 0.8rem;
    font-family: var(--font-en);
}

/* Animation utilities */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        padding-top: 120px;
    }
    
    .hero-image-container {
        position: relative;
        width: 100%;
        height: 50vh;
        margin-bottom: 40px;
    }
    
    .hero-image-container::after {
        display: none;
    }
    
    .title-en {
        font-size: 3.5rem;
    }
    
    .collection-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    .navbar {
        padding: 20px;
    }
    .footer-top {
        flex-direction: column;
        gap: 30px;
        align-items: flex-start;
    }
}

/* --- Detail Page Styles --- */
.detail-page {
    padding-bottom: 100px;
}

.detail-hero {
    width: 100%;
    height: 60vh;
    min-height: 400px;
    background-color: var(--color-surface);
    margin-bottom: 80px;
    padding-top: 80px; /* offset navbar */
}

.detail-hero-img {
    width: 100%;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px;
}

.detail-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.detail-content {
    max-width: 1000px;
    margin: 0 auto;
}

.detail-header-text {
    margin-bottom: 60px;
    text-align: center;
}

.detail-title {
    font-size: 2rem;
    font-family: var(--font-en);
    font-weight: 300;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
    line-height: 1.4;
}

@media (max-width: 768px) {
    .detail-title {
        font-size: 1.5rem;
    }
}

.detail-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-light);
}

.detail-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 80px;
}

.detail-text p {
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--color-text);
    margin-bottom: 30px;
    line-height: 1.8;
}

.detail-gallery {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.gallery-img-wrapper {
    width: 100%;
    background-color: var(--color-surface);
}

.gallery-img-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 992px) {
    .detail-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    .detail-hero {
        height: 50vh;
        padding-top: 60px;
    }
    .detail-hero-img {
        padding: 20px;
    }
}