:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --border-color: #30363d;
    --sidebar-width: 280px;
    --header-height: 60px;
    
    --callout-info-bg: rgba(56, 139, 253, 0.1);
    --callout-info-border: rgba(56, 139, 253, 0.4);
    --callout-note-bg: rgba(56, 139, 253, 0.1);
    --callout-note-border: rgba(56, 139, 253, 0.4);
    --callout-tip-bg: rgba(46, 160, 67, 0.1);
    --callout-tip-border: rgba(46, 160, 67, 0.4);
    --callout-important-bg: rgba(246, 185, 59, 0.1);
    --callout-important-border: rgba(246, 185, 59, 0.4);
    --callout-warning-bg: rgba(246, 185, 59, 0.1);
    --callout-warning-border: rgba(246, 185, 59, 0.4);
    --callout-caution-bg: rgba(246, 185, 59, 0.1);
    --callout-caution-border: rgba(246, 185, 59, 0.4);
    --callout-danger-bg: rgba(248, 81, 73, 0.1);
    --callout-danger-border: rgba(248, 81, 73, 0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
}

header {
    height: var(--header-height);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 20px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-container {
    margin-left: auto;
    position: relative;
}

.search-input {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 4px;
    width: 200px;
    font-size: 0.9rem;
    padding-left: 32px;
}

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 16px;
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.content-wrapper {
    display: flex;
    flex: 1;
    margin-top: var(--header-height);
}

.content a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, color 0.2s ease;
}

.content a:hover {
    border-bottom-color: var(--accent);
    color: #80bdff;
}

.content a:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.3);
    border-radius: 2px;
}

.content a:active {
    color: #3b91ff;
}

.content a:visited {
    color: #9280ff;
}

.content a:visited:hover {
    color: #a694ff;
    border-bottom-color: #9280ff;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    height: calc(100vh - var(--header-height));
    position: fixed;
    top: var(--header-height);
    left: 0;
}

.menu-button {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    margin-right: 15px;
    font-size: 24px;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    font-weight: bold;
}

.sidebar-menu {
    padding: 10px 0;
}

.menu-category {
    padding: 5px 20px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 15px;
}

.menu-item {
    padding: 8px 20px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
}

.menu-item:hover {
    background-color: var(--bg-tertiary);
}

.menu-item.active {
    border-left: 3px solid var(--accent);
    background-color: var(--bg-tertiary);
    color: var(--accent);
    font-weight: 500;
}

.main-content {
    flex: 1;
    padding: 30px;
    margin-left: var(--sidebar-width);
    max-width: calc(100% - var(--sidebar-width));
}

.content-container {
    max-width: 900px;
    margin: 0 auto;
}

.content h1 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.content h2 {
    font-size: 1.8rem;
    margin: 1.5rem 0 1rem;
    padding-top: 0.5rem;
}

.content h3 {
    font-size: 1.4rem;
    margin: 1.2rem 0 0.8rem;
}

.content p {
    margin-bottom: 1rem;
}

.content ul, .content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.content code {
    font-family: 'Courier New', Courier, monospace;
    background-color: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-size: 0.9rem;
}

.content pre {
    background-color: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 1rem;
}

.content pre code {
    background-color: transparent;
    padding: 0;
}

.content blockquote {
    border-left: 4px solid var(--accent);
    padding-left: 1rem;
    margin-left: 0;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 1rem 0;
    display: block;
}

.content img {
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}


@media (min-width: 768px) {
    .content img.large {
        max-width: 90%;
        margin-left: auto;
        margin-right: auto;
    }
}

.callout {
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 6px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.callout i {
    font-size: 1.2rem;
    margin-top: 2px;
}

.callout-content {
    flex: 1;
}

.callout-content > p:last-child {
    margin-bottom: 0;
}

.callout-info, .callout-note {
    background-color: var(--callout-info-bg);
    border: 1px solid var(--callout-info-border);
}

.callout-tip {
    background-color: var(--callout-tip-bg);
    border: 1px solid var(--callout-tip-border);
}

.callout-important, .callout-warning, .callout-caution {
    background-color: var(--callout-warning-bg);
    border: 1px solid var(--callout-warning-border);
}

.callout-danger {
    background-color: var(--callout-danger-bg);
    border: 1px solid var(--callout-danger-border);
}

.content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.content th, .content td {
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    text-align: left;
}

.content th {
    background-color: var(--bg-tertiary);
}

.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.error {
    color: #f85149;
    background-color: rgba(248, 81, 73, 0.1);
    border: 1px solid rgba(248, 81, 73, 0.2);
    border-radius: 5px;
    padding: 1rem;
    margin-bottom: 1rem;
}


.page-navigation {
    display: flex;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    justify-content: space-between;
}

.nav-button {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    background-color: transparent;
    color: var(--text-primary);
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    min-width: 120px;
}

.nav-button:hover {
    background-color: var(--bg-tertiary);
    color: var(--accent);
}

.nav-button:disabled, .nav-button.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.nav-button:disabled:hover, .nav-button.disabled:hover {
    background-color: transparent;
    color: var(--text-primary);
}

.nav-button i {
    font-size: 1.5rem;
    margin-bottom: 5px;
}


.nav-button.prev {
    margin-right: auto;
    align-items: flex-start;
}

.nav-button.next {
    margin-left: auto;
    align-items: flex-end;
    text-align: right;
}

.nav-info {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 99;
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        max-width: 100%;
    }

    .menu-button {
        display: block;
    }

    .page-navigation {
        flex-direction: row;
        gap: 1rem;
    }

    .nav-button.prev, .nav-button.next {
        min-width: 100px;
    }
}


* {
    scrollbar-width: thin;
    scrollbar-color: #404040 #1a1a1a;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #1a1a1a;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #404040;
    border-radius: 4px;
    transition: background 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: #525252;
}

body {
    -ms-overflow-style: -ms-autohiding-scrollbar;
}

.horizontal-scroll {
    overflow-x: auto;
    overflow-y: hidden;
}

@media (max-width: 768px) {
* {
    scrollbar-width: none;
}

::-webkit-scrollbar {
    display: none;
}
}