/* ============================================
   CHAWIN TREE - Hokusai Monograph Aesthetic
   ============================================ */

/* --- 1. CSS Variables & Reset --- */
:root {
    --bg-washi: #F9F3E6;
    --prussian-blue: #1A3C5E;
    --indigo-ink: #2E4B61;
    --indigo-ink-light: rgba(46, 75, 97, 0.6);
    --earth-ochre: #D4A26A;
    --benizuri-red: #B84B3E;
    
    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans-accent: 'Josefin Sans', 'Gill Sans', sans-serif;
    --font-sans-body: 'Source Sans 3', 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spine-width: 60px;
    --editorial-margin: 100px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-washi);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
    font-family: var(--font-sans-body);
    color: var(--indigo-ink);
}

/* Background decoration */
body::before {
    content: '';
    position: fixed;
    bottom: 0;
    left: 0;
    width: clamp(500px, 45vw, 900px);
    height: clamp(400px, 40vh, 750px);
    background-image: url('assets/blooming_plum_tree.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: bottom left;
    opacity: 0.35;
    pointer-events: none;
    z-index: 0;
}

/* --- 2. Typography Classes --- */

/* Color utilities */
.color-prussian { color: var(--prussian-blue); }
.color-indigo { color: var(--indigo-ink); }
.color-indigo-light { color: var(--indigo-ink-light); }
.color-ochre { color: var(--earth-ochre); }
.color-red { color: var(--benizuri-red); }

/* Serif headings */
.title-large {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -1.5px;
    line-height: 1.1;
    color: var(--prussian-blue);
}

.title-medium {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    line-height: 1.2;
    color: var(--indigo-ink);
}

.title-small {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--indigo-ink);
}

.subtitle {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--earth-ochre);
}

/* Sans accent text (dates, labels) */
.accent-text {
    font-family: var(--font-sans-accent);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--indigo-ink);
}

.date-text {
    font-family: var(--font-sans-accent);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--benizuri-red);
}

/* Body text */
.body-text {
    font-family: var(--font-sans-body);
    font-weight: 300;
    font-size: 18px;
    line-height: 1.75;
    max-width: 65ch;
    color: var(--indigo-ink);
}

.body-text a {
    color: var(--indigo-ink);
    text-decoration: underline;
    text-decoration-color: var(--earth-ochre);
    text-underline-offset: 3px;
}

.body-text a:hover {
    color: var(--prussian-blue);
}

.body-text-small {
    font-family: var(--font-sans-body);
    font-weight: 300;
    font-size: 14px;
    line-height: 1.6;
    color: var(--indigo-ink-light);
}

/* --- 3. The Vertical Spine --- */
.vertical-spine {
    width: var(--spine-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.vertical-label {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}

/* --- 4. Editorial Container --- */
.editorial-container {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding-left: var(--editorial-margin);
    padding-right: var(--editorial-margin);
    padding-bottom: 120px;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

.page-header {
    padding-top: 60px;
    padding-bottom: 50px;
    text-align: center;
}

.page-header .subtitle {
    margin-top: 8px;
}

/* --- 5. Navigation --- */
nav {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 20px 0;
    margin-bottom: 40px;
}

nav a {
    font-family: var(--font-sans-accent);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--indigo-ink);
    text-decoration: none;
    padding: 8px 0;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--earth-ochre);
    transition: width 0.3s ease;
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

nav a:hover {
    color: var(--prussian-blue);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > span {
    font-family: var(--font-sans-accent);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--indigo-ink);
    cursor: pointer;
    padding: 8px 0;
    position: relative;
    transition: color 0.2s ease;
}

.nav-dropdown > span::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--earth-ochre);
    transition: width 0.3s ease;
}

.nav-dropdown:hover > span::after {
    width: 100%;
}

.nav-dropdown:hover > span {
    color: var(--prussian-blue);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-washi);
    border: 0.5px solid var(--earth-ochre);
    padding: 12px 0;
    min-width: 120px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 200;
    margin-top: 8px;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.dropdown-menu a {
    display: block;
    padding: 8px 20px;
    text-align: center;
}

.dropdown-menu a::after {
    display: none;
}

.nav-dropdown > span.active::after {
    width: 100%;
}

/* --- 6. Content Layout --- */
.content-wrapper {
    display: flex;
    gap: 30px;
}

.content-main {
    flex: 2;
    padding-left: 50px;
}

.content-aside {
    flex: 2;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 40px;
    padding-left: 0;
}

/* Single column layout for blog/about pages */
.content-single {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- 7. Blog Post List --- */
.post-list {
    list-style: none;
}

.post-item {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(212, 162, 106, 0.3);
}

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

.post-item .date-text {
    display: block;
    margin-bottom: 8px;
}

.post-item h2 {
    margin-bottom: 0;
}

.post-item h2 a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

.post-item h2 a:hover {
    color: var(--prussian-blue);
}

/* --- 8. Single Post --- */
.post-header {
    text-align: center;
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(212, 162, 106, 0.3);
}

.post-header .date-text {
    display: block;
    margin-bottom: 16px;
}

.post-header h1 {
    margin-bottom: 0;
}

.post-content {
    font-family: var(--font-sans-body);
    font-weight: 300;
    font-size: 18px;
    line-height: 1.8;
    color: var(--indigo-ink);
}

.post-content h1,
.post-content h2,
.post-content h3 {
    font-family: var(--font-serif);
    font-weight: 700;
    color: var(--prussian-blue);
    margin-top: 48px;
    margin-bottom: 16px;
}

.post-content h2 {
    font-size: 1.75rem;
}

.post-content h3 {
    font-size: 1.35rem;
}

.post-content p {
    margin-bottom: 24px;
}

.post-content a {
    color: var(--prussian-blue);
    text-decoration: underline;
    text-decoration-color: var(--earth-ochre);
    text-underline-offset: 3px;
}

.post-content a:hover {
    color: var(--benizuri-red);
}

.post-content blockquote {
    border-left: 3px solid var(--earth-ochre);
    padding-left: 24px;
    margin: 32px 0;
    font-style: italic;
    color: var(--indigo-ink-light);
}

.post-content ul,
.post-content ol {
    margin-left: 24px;
    margin-bottom: 24px;
}

.post-content li {
    margin-bottom: 8px;
}

.post-content hr {
    border: none;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--earth-ochre), transparent);
    margin: 48px 0;
}

.post-content code {
    font-family: 'Consolas', monospace;
    font-size: 0.9em;
    background: rgba(46, 75, 97, 0.08);
    padding: 2px 6px;
    border-radius: 3px;
}

.post-content pre {
    background: rgba(46, 75, 97, 0.05);
    padding: 20px;
    border-radius: 4px;
    overflow-x: auto;
    margin-bottom: 24px;
}

.post-content pre code {
    background: none;
    padding: 0;
}

/* --- 9. Plate Cards (Home page) --- */
.plate-card {
    position: relative;
    width: 200px;
    cursor: pointer;
    text-decoration: none;
    display: block;
}

.plate-card:hover {
}

.plate-card.library-card {
}

.plate-card.games-card {
}

/* Study image (decorative frog) */
.study-image {
    margin: 0;
    opacity: 0.7;
    transition: opacity 0.3s ease;
    align-self: center;
}

.study-image:hover {
    opacity: 1;
}

.study-image img {
    max-width: 200px;
    height: auto;
    display: block;
}

.matted-frame {
    padding: 0;
    border: 0.5px solid var(--earth-ochre);
    transition: border-color 0.2s ease;
    overflow: hidden;
}

.library-card .matted-frame {
    border: none;
    background: none;
}

.plate-card:hover .matted-frame {
    border-color: var(--prussian-blue);
}

.image-placeholder,
.card-image {
    width: 100%;
    height: auto;
    display: block;
    background: linear-gradient(135deg, #E5DCC9 0%, #D8CFC0 100%);
    font-family: var(--font-sans-accent);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--indigo-ink-light);
    object-fit: contain;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.plate-card:hover .image-placeholder,
.plate-card:hover .card-image {
    opacity: 1;
}

/* Aside links (home page) */
.aside-link {
    text-align: right;
    margin-bottom: 40px;
}

.aside-link:last-child {
    margin-bottom: 0;
}

.aside-link .accent-text {
    display: block;
    margin-bottom: 6px;
    color: var(--earth-ochre);
}

.aside-link a {
    transition: color 0.2s ease;
}

.aside-link a:hover {
    color: var(--prussian-blue);
}

.image-placeholder {
    aspect-ratio: 5 / 4;
    display: flex;
    align-items: center;
    justify-content: center;
}

.library-card .card-image,
.games-card .card-image {
    background: none;
}

.card-details {
    padding-top: 12px;
    text-align: center;
}

.hanko-seal {
    display: none;
}

.card-details h4 {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--indigo-ink);
    margin-bottom: 4px;
}

/* --- 10. Blog Preview (Home page) --- */
.blog-preview-list {
    list-style: none;
}

.blog-preview {
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid rgba(212, 162, 106, 0.25);
}

.blog-preview:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.blog-preview .date-text {
    display: block;
    margin-bottom: 6px;
}

.blog-preview h3 {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.5rem;
    line-height: 1.2;
    color: var(--indigo-ink);
    margin-bottom: 0;
}

.blog-preview h3 a {
    text-decoration: none;
    color: inherit;
}

.blog-preview h3 a:hover {
    color: var(--prussian-blue);
}

/* Read more link */
.read-more {
    display: inline-block;
    font-family: var(--font-sans-accent);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--indigo-ink-light);
    text-decoration: none;
    margin-top: 24px;
}

.read-more:hover {
    color: var(--prussian-blue);
}

/* --- 11. About Page --- */
.about-content {
    max-width: 600px;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: 24px;
}

.about-content a {
    color: var(--prussian-blue);
    text-decoration: underline;
    text-decoration-color: var(--earth-ochre);
}

/* --- 12. Library & Games Pages --- */
.library-divider {
    border: none;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--earth-ochre), transparent);
    margin-bottom: 40px;
}

.library-columns {
    display: flex;
    gap: 40px;
}

.library-col {
    flex: 1;
}

.book-list {
    list-style: none;
    margin-bottom: 28px;
}

.book-list:last-child {
    margin-bottom: 0;
}

.book-list li {
    font-family: var(--font-sans-body);
    font-weight: 300;
    font-size: 14px;
    line-height: 1.8;
    color: var(--indigo-ink);
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 40px;
}

.collection-item {
    border: 0.5px solid var(--earth-ochre);
    padding: 24px;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.collection-item:hover {
    border-color: var(--prussian-blue);
    transform: translateY(-3px);
}

.collection-item h3 {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--indigo-ink);
    margin-bottom: 8px;
}

.collection-item .meta {
    font-size: 12px;
    color: var(--indigo-ink-light);
    margin-bottom: 12px;
}

.collection-item p {
    font-size: 14px;
    line-height: 1.6;
}

/* Numbered list for games */
.ranked-list {
    list-style: none;
    counter-reset: rank;
}

.ranked-item {
    counter-increment: rank;
    display: flex;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid rgba(212, 162, 106, 0.2);
}

.ranked-item::before {
    content: counter(rank);
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 2rem;
    color: var(--earth-ochre);
    min-width: 50px;
}

.ranked-item-content h3 {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--indigo-ink);
    margin-bottom: 4px;
}

/* --- 12b. Games Grid --- */
.games-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
}

.game-card {
    display: block;
    width: calc((100% - 5 * 24px) / 6);
    aspect-ratio: 2 / 3;
    border: 1px solid var(--earth-ochre);
    overflow: hidden;
    text-decoration: none;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.game-card:hover {
    border-color: var(--prussian-blue);
    transform: translateY(-3px);
}

.game-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0.85;
    transition: opacity 0.3s ease;
}

.game-card:hover img {
    opacity: 1;
}

/* --- 13. Footer --- */
.site-footer {
    margin-top: 80px;
    padding-top: 40px;
    text-align: center;
}

.site-footer::before {
    content: '';
    display: block;
    width: 120px;
    height: 1px;
    background: rgba(212, 162, 106, 0.4);
    margin: 0 auto 40px;
}

.site-footer p {
    font-size: 12px;
    color: var(--indigo-ink-light);
}

/* --- 14. Back Link --- */
.back-link {
    display: inline-block;
    margin-bottom: 40px;
    font-family: var(--font-sans-accent);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--indigo-ink-light);
    text-decoration: none;
}

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

.back-link::before {
    content: '← ';
}

/* --- 15. Loading State --- */
.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--indigo-ink-light);
    font-style: italic;
}

/* --- 16. Responsive Design --- */
@media screen and (max-width: 1024px) {
    :root {
        --editorial-margin: 60px;
    }

    .game-card {
        width: calc((100% - 3 * 24px) / 4);
    }
    
    .content-wrapper {
        flex-direction: column;
        gap: 60px;
    }
    
    .content-main {
        padding-left: 0;
    }
    
    .content-aside {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        padding-left: 0;
        gap: 40px;
    }

    .content-aside:has(.aside-link) {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 30px;
    }

    .content-aside:has(.aside-link) .aside-link {
        text-align: left;
        margin-bottom: 0;
    }
    
    .plate-card {
        align-self: center !important;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --spine-width: 40px;
        --editorial-margin: 20px;
    }

    .games-grid {
        gap: 16px;
    }

    .game-card {
        width: calc((100% - 2 * 16px) / 3);
    }
    
    .vertical-spine {
        width: var(--spine-width);
    }
    
    .editorial-container {
        margin-left: calc(var(--spine-width) + 20px);
        padding-right: 20px;
    }
    
    nav {
        flex-wrap: wrap;
        gap: 20px 30px;
    }
    
    .page-header {
        padding-top: 40px;
        padding-bottom: 40px;
    }
    
    .title-large {
        font-size: 2rem;
    }
    
    .post-content {
        font-size: 16px;
    }
    
    .collection-grid {
        grid-template-columns: 1fr;
    }

    .library-columns {
        flex-direction: column;
    }
}

@media screen and (max-width: 480px) {
    .games-grid {
        gap: 12px;
    }

    .game-card {
        width: calc((100% - 12px) / 2);
    }

    body::before {
        display: none;
    }
    
    .vertical-spine {
        display: none;
    }
    
    .editorial-container {
        margin-left: 20px;
    }
    
    nav {
        gap: 15px 20px;
    }
    
    nav a {
        font-size: 10px;
    }
}