/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-bg: #fafafa;
    --color-text: #2a2a2a;
    --color-text-light: #666;
    --color-border: #e0e0e0;
    --color-accent: #1a1a1a;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

/* Header */
.site-header {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.site-title {
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.site-title a {
    color: var(--color-accent);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.site-title a:hover {
    opacity: 0.6;
}

.site-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-weight: 300;
    letter-spacing: 0.03em;
}

/* Navigation */
.site-nav {
    margin-top: var(--spacing-md);
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-bottom: 2px solid transparent;
    transition: border-color 0.2s ease, color 0.2s ease;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.nav-link:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

/* Main Content */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

/* Gallery Intro */
.gallery-intro {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.gallery-title {
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
}

.gallery-description {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.8;
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.toy-card {
    background: white;
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.toy-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.toy-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.toy-image-wrapper {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: #f5f5f5;
}

.toy-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.toy-card:hover .toy-image {
    transform: scale(1.05);
}

.toy-info {
    padding: var(--spacing-md);
}

.toy-name {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.01em;
}

.toy-meta {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

/* Toy Detail Page */
.back-link {
    display: inline-block;
    color: var(--color-text-light);
    text-decoration: none;
    margin-bottom: var(--spacing-lg);
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--color-accent);
}

.toy-detail {
    max-width: 1200px;
    margin: 0 auto;
}

.toy-display {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.toy-image-large-wrapper {
    width: 100%;
    aspect-ratio: 4/3;
    background: white;
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.toy-image-large {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.toy-metadata {
    padding: var(--spacing-md);
}

.toy-detail-name {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.02em;
}

.toy-details-list {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.toy-details-list dt {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-light);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.toy-details-list dd {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.toy-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    font-size: 0.85rem;
    border-radius: 2px;
}

.toy-description {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-lg);
    line-height: 1.8;
    font-size: 1.05rem;
    color: var(--color-text);
}

/* Footer */
.site-footer {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}

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

.footer-link {
    color: var(--color-text-light);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.footer-link:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

/* FAQ Page */
.faq-page {
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-xl);
    letter-spacing: 0.02em;
    text-align: center;
}

.faq-content {
    margin-top: var(--spacing-lg);
}

.faq-item {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.01em;
    color: var(--color-accent);
}

.faq-answer {
    line-height: 1.8;
    font-size: 1.05rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.faq-answer:last-child {
    margin-bottom: 0;
}

.faq-answer strong {
    color: var(--color-accent);
}

/* Multi-Image Gallery */
.toy-image-section {
    width: 100%;
}

.toy-image-thumbnails {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.toy-thumbnail {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.toy-thumbnail:hover {
    border-color: var(--color-accent);
    transform: scale(1.05);
}

/* Page Intro (shared by Timeline and Tags) */
.page-intro {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-description {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.8;
}

/* Timeline View */
.timeline-page {
    max-width: 900px;
    margin: 0 auto;
}

.timeline {
    margin-top: var(--spacing-xl);
}

.timeline-decade {
    margin-bottom: var(--spacing-xl);
}

.decade-title {
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
    color: var(--color-accent);
}

.timeline-items {
    position: relative;
    padding-left: var(--spacing-lg);
    border-left: 2px solid var(--color-border);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.timeline-item:last-child {
    border-bottom: none;
}

.timeline-year {
    position: absolute;
    left: calc(-1 * var(--spacing-lg) - 2px);
    top: 0;
    background: var(--color-bg);
    padding: 0.25rem 0.75rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-accent);
    border: 2px solid var(--color-border);
    border-radius: 20px;
}

.timeline-link {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: var(--spacing-md);
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s ease;
}

.timeline-link:hover {
    opacity: 0.8;
}

.timeline-image {
    width: 150px;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: white;
    border: 1px solid var(--color-border);
}

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

.timeline-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.timeline-toy-name {
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
}

.timeline-manufacturer {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

/* Tags Pages */
.tags-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.tag-card {
    background: white;
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.tag-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--color-accent);
}

.tag-card-name {
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.02em;
}

.tag-card-count {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .toy-display {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .toy-detail-name {
        font-size: 2rem;
    }

    .site-header {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .site-title {
        font-size: 1.5rem;
    }

    .site-nav {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .timeline-link {
        grid-template-columns: 1fr;
    }

    .timeline-image {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .timeline-year {
        position: static;
        display: inline-block;
        margin-bottom: var(--spacing-sm);
    }

    .timeline-items {
        border-left: none;
        padding-left: 0;
    }

    .tags-grid {
        grid-template-columns: 1fr;
    }
}