/* 代码片段展示页 */

.snippets-page {
    min-height: 100vh;
    background-color: var(--bg-primary);
}

.snippets-page .bg-animation {
    opacity: 0.85;
}

html[data-theme="light"] .snippets-page .bg-animation {
    opacity: 1;
}

html[data-theme="light"] .snippets-page .bg-gradient {
    background: var(--bg-gradient-1), var(--bg-gradient-2), var(--bg-gradient-3),
        linear-gradient(180deg, #fdfbf7 0%, #f8f4ec 100%);
}

html[data-theme="dark"] .snippets-page .bg-gradient {
    background: var(--bg-gradient-1), var(--bg-gradient-2), var(--bg-gradient-3),
        linear-gradient(180deg, #0d1117 0%, #161b22 100%);
}

.snippets-page .container {
    padding-left: 0.5rem;
    padding-right: 1.5rem;
}

.snippets-layout {
    display: flex;
    max-width: 1400px;
    margin: 0;
    padding: 0 0 2rem;
    gap: 0;
    min-height: calc(100vh - 4rem);
}

.snippets-sidebar {
    width: 16rem;
    min-width: 16rem;
    flex-shrink: 0;
    border-right: 1px solid var(--border-color);
    padding: 0.5rem 0.75rem 1rem 0;
    max-height: calc(100vh - 5rem);
    position: sticky;
    top: 4rem;
    overflow: auto;
    box-sizing: border-box;
}

.snippets-sidebar h1 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.5rem;
    padding: 0;
}

.snippets-tree ul {
    list-style: none;
    margin: 0;
    padding-left: 0;
}

.snippets-tree > ul {
    padding-left: 0;
}

.snippets-item {
    cursor: pointer;
    padding: 0.35rem 0.5rem 0.35rem 0;
    border-radius: 0.3rem;
    font-size: 0.6875rem;
    color: var(--text-secondary);
    display: block;
    width: 100%;
    box-sizing: border-box;
}

.snippets-file-name {
    display: block;
    font-family: Monaco, Menlo, Consolas, 'Courier New', monospace;
    font-size: 0.6875rem;
    line-height: 1.35;
    white-space: nowrap;
}

.snippets-item:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.snippets-item.active {
    background: rgba(123, 104, 238, 0.15);
    color: #7B68EE;
}

.snippets-main {
    flex: 1;
    min-width: 0;
    padding: 0.5rem 0 1rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.snippets-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-shrink: 0;
}

.snippets-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    min-width: 0;
    min-height: 1.5rem;
}

.snippets-title--loading {
    display: flex;
    align-items: center;
}

.snippets-title-skeleton {
    display: block;
    width: 9rem;
    max-width: 60%;
    height: 1.125rem;
    border-radius: 0.35rem;
    background: linear-gradient(
        90deg,
        var(--border-color) 0%,
        rgba(123, 104, 238, 0.18) 50%,
        var(--border-color) 100%
    );
    background-size: 200% 100%;
    animation: snippets-shimmer 1.2s ease-in-out infinite;
}

@keyframes snippets-shimmer {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

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

.snippets-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 12rem;
    padding: 2rem;
}

.snippets-loading--compact {
    min-height: 4rem;
    padding: 1.25rem;
}

.snippets-spinner {
    width: 1.75rem;
    height: 1.75rem;
    border: 2px solid var(--border-color);
    border-top-color: #7B68EE;
    border-radius: 50%;
    animation: snippets-spin 0.7s linear infinite;
}

.snippets-viewer {
    position: relative;
    flex: 1;
    min-height: calc(100vh - 8rem);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: auto;
    background: #f6f8fa;
}

.snippets-viewer--initial {
    display: flex;
    align-items: center;
    justify-content: center;
}

.snippets-viewer--initial .snippets-loading {
    min-height: calc(100vh - 10rem);
}

.snippets-viewer-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(246, 248, 250, 0.62);
    pointer-events: none;
    z-index: 10;
}

.snippets-viewer-overlay .snippets-spinner {
    width: 2.25rem;
    height: 2.25rem;
    border-width: 3px;
    background: var(--bg-card, #fff);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

html[data-theme="dark"] .snippets-viewer-overlay {
    background: rgba(13, 17, 23, 0.55);
}

html[data-theme="dark"] .snippets-viewer-overlay .snippets-spinner {
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}

.snippets-viewer--busy pre {
    opacity: 0.65;
}

.snippets-viewer pre {
    position: relative;
    z-index: 0;
    margin: 0;
    padding: 1rem 1.25rem;
    font-size: 0.8125rem;
    line-height: 1.55;
}

html[data-theme="dark"] .snippets-viewer {
    background: #0d1117;
}

.snippets-copy-btn {
    padding: 0.35rem 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.75rem;
    cursor: pointer;
    flex-shrink: 0;
}

.snippets-copy-btn:hover:not(:disabled) {
    border-color: #7B68EE;
    color: #7B68EE;
}

.snippets-copy-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.snippets-empty {
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.snippets-viewer code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

@media (max-width: 900px) {
    .snippets-layout {
        flex-direction: column;
    }

    .snippets-sidebar {
        width: 100%;
        max-height: 35vh;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}