/* Whiskers Gallery Styles */

:root {
    /* Light theme matching egui Visuals::light() */
    --bg-color: #F8F8F8;
    --surface-color: #FFFFFF;
    --primary-color: #009BFF;
    --text-color: #1a1a1a;
    --text-muted: #666666;
    --border-color: #d0d0d0;
    --code-bg: #E6E6E6;
}

@media (prefers-color-scheme: dark) {
    :root {
        /* Dark theme matching egui Visuals::dark() */
        --bg-color: #1b1b1b;
        --surface-color: #272727;
        --primary-color: #5599ff;
        --text-color: #e0e0e0;
        --text-muted: #a0a0a0;
        --border-color: #404040;
        --code-bg: #1a1a1a;
    }
}

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

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

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Landing Page */
.gallery-header {
    text-align: center;
    padding: 3rem 1rem 2rem;
    background: linear-gradient(180deg, var(--surface-color) 0%, var(--bg-color) 100%);
}

.gallery-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.gallery-header p {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.gallery-header .subtitle {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.sketch-card {
    background: var(--surface-color);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    display: block;
    color: var(--text-color);
}

.sketch-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    text-decoration: none;
}

.sketch-thumbnail {
    aspect-ratio: 4 / 3;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.sketch-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
    box-sizing: border-box;
}

.sketch-card h2 {
    font-size: 1.25rem;
    padding: 1rem 1rem 0.5rem;
}

.sketch-card p {
    padding: 0 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.sketch-author {
    display: block;
    padding: 0.75rem 1rem 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.gallery-footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
}

.gallery-footer a {
    color: var(--text-muted);
    margin: 0 0.5rem;
}

.gallery-footer a:hover {
    color: var(--primary-color);
}

/* Sketch Page */
.sketch-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 1rem;
    z-index: 100;
    gap: 1rem;
}

.back-link {
    font-size: 0.9rem;
}

.sketch-title {
    flex: 1;
    font-weight: 600;
    text-align: center;
}

.source-toggle {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.2s;
}

.source-toggle:hover {
    background: #0080d0;
}

/* Split layout */
.split-container {
    position: fixed;
    top: 48px;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
}

.sketch-pane {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.sketch-pane canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.source-pane {
    display: none;
    flex-direction: column;
    height: 100%;
    background: var(--code-bg);
    overflow: hidden;
}

.source-pane pre {
    flex: 1;
    overflow: auto;
    margin: 0;
    padding: 1rem;
}

.source-pane code {
    font-family: "JetBrains Mono", "Fira Code", "SF Mono", Consolas, monospace;
    font-size: 11px;
    line-height: 1.4;
}

/* Split.js gutter */
.gutter {
    background: var(--border-color);
    cursor: col-resize;
}

.gutter:hover {
    background: var(--primary-color);
}

.loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 1rem auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error {
    color: var(--primary-color);
}

.source-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .gallery-header h1 {
        font-size: 1.75rem;
    }

    .gallery-grid {
        padding: 1rem;
        gap: 1rem;
    }

    .source-panel {
        width: 100vw;
        max-width: 100vw;
    }

    .sketch-title {
        font-size: 0.9rem;
    }
}