/* ========================================
   🎨 COLORS & FONTS - Edit these first!
   ======================================== */

/*
 * FONTS
 * -----
 * Change the Google Fonts URL below to use different fonts.
 * Current: DM Mono (monospace body) + Instrument Serif (headings)
 * 
 * Browse fonts at: https://fonts.google.com/
 */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Instrument+Serif:ital@0;1&display=swap');

:root {
    /* 
     * BACKGROUND COLORS
     * -----------------
     */
    --bg-main: #BBBBBB;          /* Page background (dark) */
    --bg-texture: #070707;       /* Texture overlay color */

    /* 
     * CARD COLORS
     * -----------
     */
    --card-bg: #FFFFFF;          /* Main card background (early internet beige) */
    --card-bg-alt: #e5ded4;      /* Slightly darker beige for headers/alternates */
    --card-border: #333;         /* Card border color */
    --card-shadow: rgba(0, 0, 0, 0.5);  /* Drop shadow behind cards */

    /* 
     * TEXT COLORS
     * -----------
     */
    --text-dark: #1a1a1a;        /* Main text color */
    --text-muted: #555;          /* Secondary/lighter text */

    /* 
     * ACCENT & LINK COLORS
     * --------------------
     */
    --accent: #333;              /* Buttons, highlights, decorations */
    --accent-hover: #000;        /* Accent color on hover */
    --link: #444;                /* Link text color */
    --link-hover: #000;          /* Link color on hover */
}

/*
 * FONT SETTINGS
 * -------------
 * body-font: Used for most text
 * heading-font: Used for titles and card headers
 */


/* ========================================
   Base Styles & Background
   ======================================== */

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

body {
    /* Font settings - change 'DM Mono' to your preferred font */
    font-family: 'basiic', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-main);
    
    /* 
     * PIXEL ART BACKGROUND
     * --------------------
     * Replace 'bg-library.png' with your own image!
     * The image-rendering: pixelated keeps pixel art crisp.
     */
    background-image: url('bg-library.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    image-rendering: pixelated;
    min-height: 100vh;
}

/* Fallback grid pattern (shows if no bg-library.png) */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(90deg, rgba(40, 40, 40, 0.8) 1px, transparent 1px),
        linear-gradient(rgba(40, 40, 40, 0.8) 1px, transparent 1px);
    background-size: 8px 8px;  /* Grid square size */
    pointer-events: none;
    z-index: -1;
}


/* ========================================
   Desktop Layout - Floating Cards Grid
   ======================================== */

.home-layout {
    display: grid;
    grid-template-columns: 280px 1fr 280px;  /* Left sidebar | Center | Right sidebar */
    grid-template-rows: auto auto auto auto;
    gap: 20px;
    padding: 30px;
    max-width: 1400px;
    margin: 0 auto;
    min-height: 100vh;
    align-items: start;  /* Cards only as tall as their content */
}


/* ========================================
   Card Base Styles
   ======================================== */

.card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 0;
    box-shadow: 4px 4px 0 var(--card-shadow);
    overflow: hidden;
}

.card-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
    padding: 8px 12px;
    /* Heading font - change 'Instrument Serif' to your preferred font */
    font-family: 'basiic', monospace;
    font-size: 1rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-align: center;
}


.card-body {
    padding: 16px;
}


/* ========================================
   Left Column Cards
   ======================================== */

/* Welcome Card - with stacked card effect */
.card-welcome {
    grid-column: 1;
    grid-row: 1;
    position: relative;
}

/* Stacked cards behind the welcome card */
.card-welcome::before,
.card-welcome::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    z-index: -1;
}

.card-welcome::before {
    transform: translate(10px, 10px);
}

.card-welcome::after {
    transform: translate(20px, 20px);
}

.card-welcome .card-body {
    text-align: center;
}

.card-welcome h1 {
    font-family: 'basiic', monospace;
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.card-welcome .subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.card-welcome .affiliation {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* About Card */
.card-about {
    grid-column: 1;
    grid-row: 2;
    margin-top: -8px;
    margin-left: 12px;
}

.card-about p {
    font-size: 0.85rem;
    color: var(--text-dark);
}

/* Links Card */
.card-links {
    grid-column: 1;
    grid-row: 3;
    margin-left: -5px;
    margin-top: 6px;
}

.card-links ul {
    list-style: none;
}

.card-links li {
    margin-bottom: 8px;
}

.card-links a {
    color: var(--link);
    text-decoration: none;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}

.card-links a::before {
    content: '→';
    color: var(--accent);
}

.card-links a:hover {
    color: var(--link-hover);
}


/* ========================================
   Right Column Cards
   ======================================== */

/* Navigation Card */
.card-nav {
    grid-column: 3;
    grid-row: 1;
    margin-top: 15px;
    margin-right: 8px;
}

.card-nav ul {
    list-style: none;
}

.card-nav li {
    margin-bottom: 10px;
}

.card-nav a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: 0.9rem;
    display: block;
    padding: 8px 12px;
    background: var(--card-bg-alt);
    border: 1px solid var(--card-border);
    border-radius: 0;
    transition: all 0.2s;
}

.card-nav a:hover,
.card-nav a.active {
    background: var(--accent);
    color: var(--card-bg);
    border-color: var(--accent);
}

/* Interests Card */
.card-interests {
    grid-column: 3;
    grid-row: 2;
    margin-left: 10px;
    margin-top: -12px;
}

.interest-tag {
    display: inline-block;
    background: var(--card-bg-alt);
    border: 1px solid var(--card-border);
    padding: 4px 10px;
    margin: 3px;
    font-size: 0.8rem;
    border-radius: 0;
    color: var(--text-muted);
}

/* Gallery Preview Card */
.card-gallery-preview {
    grid-column: 2;
    grid-row: 3;
    margin-top: -80px;
    margin-left: 10px;
    justify-self: center;
}

.gallery-mini {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.gallery-mini-item {
    aspect-ratio: 1;
    width: 120px;
    height: 120px;
    background: var(--card-bg-alt);
    border: 2px solid var(--card-border);
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--text-muted);
    text-decoration: none;
    overflow: hidden;
}

.gallery-mini-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-link {
    display: block;
    text-align: center;
    margin-top: 12px;
    color: var(--link);
    text-decoration: none;
    font-size: 0.85rem;
}

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


/* ========================================
   Center Column - Publications Card
   ======================================== */

.card-publications {
    grid-column: 2;
    grid-row: 1 / 4;
    margin-top: 25px;
    align-self: start;
}

.papers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 16px;
}

.paper-icon {
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s;
    text-decoration: none;
}

.paper-icon:hover {
    transform: translateY(-4px);
}

.paper-icon-img {
    width: 80px;
    height: 80px;
    margin: 0 auto 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.paper-icon-img img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.paper-icon-fallback {
    font-size: 2.5rem;
}

.paper-icon-label {
    font-size: 0.75rem;
    color: var(--text-dark);
    line-height: 1.3;
    max-width: 100px;
    margin: 0 auto;
}

.papers-footer {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px dashed var(--card-border);
    text-align: center;
}

.papers-footer a {
    display: inline-block;
    background: var(--accent);
    color: var(--card-bg);
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 0;
    font-size: 0.9rem;
    border: 2px solid var(--accent-hover);
    box-shadow: 2px 2px 0 var(--card-shadow);
    transition: all 0.2s;
}

.papers-footer a:hover {
    background: var(--accent-hover);
    transform: translate(1px, 1px);
    box-shadow: 1px 1px 0 var(--card-shadow);
}


/* ========================================
   Page Layout (Publications, Gallery pages)
   ======================================== */

.page-layout {
    max-width: 900px;
    margin: 0 auto;
    padding: 30px;
}

.page-card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 0;
    box-shadow: 4px 4px 0 var(--card-shadow);
    overflow: hidden;
}

.page-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-header h1 {
    font-family: 'basiic', monospace;
    font-size: 1.5rem;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}


.page-nav {
    display: flex;
    gap: 12px;
}

.page-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    padding: 6px 12px;
    border-radius: 0;
    transition: all 0.2s;
}

.page-nav a:hover {
    background: var(--card-bg-alt);
}

.page-nav a.active {
    background: var(--accent);
    color: var(--card-bg);
}

.page-body {
    padding: 24px;
}


/* ========================================
   Publication List Styles
   ======================================== */

.pub-year {
    font-family: 'basiic', monospace;
    font-size: 1.3rem;
    color: var(--accent);
    margin: 24px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--card-border);
}

.pub-year:first-child {
    margin-top: 0;
}

.paper {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0;
    padding: 16px;
    margin-bottom: 12px;
}

.paper-title {
    margin-bottom: 6px;
}

.paper-title a {
    font-family: 'basiic', monospace;
    font-size: 1.05rem;
    color: var(--text-dark);
    text-decoration: none;
}

.paper-title a:hover {
    color: var(--accent);
}

.paper-authors {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.paper-authors .author-link {
    color: var(--link);
    text-decoration: none;
    border-bottom: 1px dotted var(--link);
}

.paper-authors .author-link:hover {
    color: var(--link-hover);
}

.paper-venue {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 8px;
}

.paper-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.paper-links a {
    font-size: 0.8rem;
    color: var(--card-bg);
    background: var(--link);
    padding: 3px 8px;
    border-radius: 0;
    text-decoration: none;
    transition: background 0.2s;
}

.paper-links a:hover {
    background: var(--link-hover);
}


/* ========================================
   Gallery Page Styles
   ======================================== */

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.gallery-card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    box-shadow: 4px 4px 0 var(--card-shadow);
    overflow: hidden;
}

.gallery-card.clickable {
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.gallery-card.clickable:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--card-shadow);
}

.photo-count {
    margin-left: 8px;
    opacity: 0.7;
}

.gallery-card-img {
    aspect-ratio: 4/3;
    background: var(--card-bg);
    border-bottom: 2px solid var(--card-border);
    overflow: hidden;
}

.gallery-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-card-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--card-bg-alt) 100%);
}

.gallery-card-info {
    padding: 16px;
}

.gallery-card-date {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.gallery-card-info h3 {
    font-family: 'basiic', monospace;
    font-size: 1.1rem;
    color: var(--text-dark);
    margin: 6px 0 8px;
}

.gallery-card-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Old gallery styles (kept for compatibility) */
.gallery-section {
    margin-top: 0;
}

.update {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0;
    padding: 16px;
    margin-bottom: 20px;
}

.update-date {
    font-size: 0.75rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.update h3 {
    font-family: 'basiic', monospace;
    font-size: 1.1rem;
    color: var(--text-dark);
    margin: 6px 0 8px;
}

.update p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
}

.photo-placeholder {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, var(--card-bg) 0%, #fff 100%);
    border: 1px dashed var(--card-border);
    border-radius: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.photo-grid img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    border: 1px solid var(--card-border);
}


/* ========================================
   📱 Mobile Responsive - Single Column
   ======================================== */

@media (max-width: 1000px) {
    .home-layout {
        display: flex;
        flex-direction: column;
        padding: 20px;
        gap: 16px;
    }

    .card {
        width: 100%;
        margin: 0 !important;  /* Reset all the quirky offsets on mobile */
    }

    .card-publications {
        min-height: auto;
    }

    .card-gallery-preview {
        margin-top: 0 !important;  /* No overlap on mobile */
    }

    .papers-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .home-layout {
        padding: 16px;
    }

    .papers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .paper-icon-img {
        width: 60px;
        height: 75px;
    }

    .page-header {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .page-nav {
        width: 100%;
        justify-content: flex-start;
    }

    .photo-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* ========================================
   Lightbox Styles
   ======================================== */

.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border: 4px solid var(--card-bg);
}

.lightbox-caption {
    margin-top: 16px;
    color: var(--card-bg);
    font-family: 'basiic', monospace;
    display: flex;
    gap: 20px;
    align-items: center;
}

#lightbox-title {
    font-size: 1.1rem;
}

#lightbox-counter {
    font-size: 0.9rem;
    opacity: 0.7;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: none;
    border: none;
    color: var(--card-bg);
    font-size: 2.5rem;
    cursor: pointer;
    padding: 20px;
    transition: opacity 0.2s;
    font-family: 'basiic', monospace;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 0.7;
}

.lightbox-close {
    top: 10px;
    right: 20px;
    font-size: 3rem;
}

.lightbox-prev {
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

@media (max-width: 600px) {
    .lightbox-prev,
    .lightbox-next {
        font-size: 2rem;
        padding: 10px;
    }
    
    .lightbox-close {
        font-size: 2rem;
    }
}


/* ========================================
   Scrollbar Styling (Chrome/Safari/Edge)
   ======================================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
    background: var(--card-border);
    border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}