@font-face {
    font-family: '0xProto';
    src: url('../fonts/0xProtoNerdFont-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

/* Theme Variables */
:root {
    /* Light Theme (Default) */
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --primary-color: #0d6efd;
    --header-bg: transparent;
    --font-main: '0xProto', monospace;
    --item-border: #e9ecef;
    --item-hover-border: #ced4da;
    --modal-overlay-bg: rgba(0, 0, 0, 0.5);
    --modal-card-bg: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root {
        /* Dark Theme (System Default) */
        --bg-color: #121212;
        --text-color: #e0e0e0;
        --card-bg: #1e1e1e;
        --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
        --primary-color: #66b0ff;
        --header-bg: transparent;
        --item-border: #333;
        --item-hover-border: #555;
        --modal-overlay-bg: rgba(0, 0, 0, 0.8);
        --modal-card-bg: #1e1e1e;
    }
}

[data-theme="dark"] {
    /* Dark Theme (Forced) */
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --card-bg: #1e1e1e;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --primary-color: #66b0ff;
    --header-bg: transparent;
    --item-border: #333;
    --item-hover-border: #555;
    --modal-overlay-bg: rgba(0, 0, 0, 0.8);
    --modal-card-bg: #1e1e1e;
}

[data-theme="light"] {
    /* Light Theme (Forced - Override System Dark) */
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --primary-color: #0d6efd;
    --header-bg: transparent;
    --item-border: #e9ecef;
    --item-hover-border: #ced4da;
    --modal-overlay-bg: rgba(0, 0, 0, 0.5);
    --modal-card-bg: #ffffff;
}

/* Global Styles */
body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    text-decoration: underline;
}

.site-main {
    flex-grow: 1;
}

.container {
    max-width: 1200px;
    /* Wider container for grid */
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    background-color: var(--header-bg);
    padding: 60px 0 40px 0;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    text-align: center;
}

.header-top {
    width: 100%;
    display: flex;
    justify-content: center;
    position: relative;
    margin-bottom: 20px;
    padding-top: 50px;
    /* Push title down */
}

.logo {
    margin: 0;
    font-weight: normal;
    font-size: 2.5rem;
    line-height: 1.2;
}

.theme-toggle {
    position: absolute;
    right: 0;
    top: 0;
    transform: none;
}

.theme-toggle button {
    background: none;
    border: 1px solid var(--text-color);
    color: var(--text-color);
    padding: 5px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s ease;
}

.theme-toggle button:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

.site-description {
    font-size: 1.1rem;
    margin: 0;
    opacity: 0.8;
    max-width: 600px;
    margin-top: 10px;
    margin-bottom: 40px;
}

/* Grid Layout */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 50px;
    padding-bottom: 40px;
}

.grid-item {
    background-color: var(--card-bg);
    border: 1px solid var(--item-border);
    border-radius: 12px;
    aspect-ratio: 1 / 1;
    /* Square cards */
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.grid-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow);
    border-color: var(--item-hover-border);
}

.grid-image-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

.grid-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Cover for thumbnail view */
    transition: transform 0.5s ease;
}

/* Subtle zoom on hover */
.grid-item:hover .grid-image-wrapper img {
    transform: scale(1.05);
}

/* Placeholder */
.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #eee;
    color: #555;
    font-size: 0.9rem;
}

/* Item Title Overlay */
.item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0));
    padding: 20px 15px 15px 15px;
    box-sizing: border-box;
    display: flex;
    align-items: flex-end;
    pointer-events: none;
    /* Let clicks pass to card */
}

/* Title handling: expand on hover */
.item-title {
    color: #fff;
    /* Always white on overlay */
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.3;

    /* Truncation by default */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;

    transition: all 0.3s ease;
}

.grid-item:hover .item-title {
    /* Reveal full text on hover */
    white-space: normal;
    overflow: visible;
}


/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay-bg);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--modal-card-bg);
    padding: 30px;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--item-border);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.modal-close:hover {
    opacity: 1;
}

.modal-header {
    margin-bottom: 20px;
}

#modal-title {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-color);
}

.modal-body {
    color: var(--text-color);
}

#modal-desc {
    line-height: 1.6;
    margin-bottom: 20px;
}

#modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.tags .tag {
    font-size: 0.8rem;
    padding: 3px 10px;
    border-radius: 6px;
    border: 1px solid;
    /* Color set inline via JS */
    background: transparent;
}

/* Footer */
.site-footer {
    margin-top: 60px;
    padding: 20px 0;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.6;
}