:root {
    --ctp-rosewater: #f5e0dc;
    --ctp-flamingo: #f2cdcd;
    --ctp-pink: #f5c2e7;
    --ctp-mauve: #cba6f7;
    --ctp-red: #f38ba8;
    --ctp-maroon: #eba0ac;
    --ctp-peach: #fab387;
    --ctp-yellow: #f9e2af;
    --ctp-green: #a6e3a1;
    --ctp-teal: #94e2d5;
    --ctp-sky: #89dceb;
    --ctp-sapphire: #74c7ec;
    --ctp-blue: #89b4fa;
    --ctp-lavender: #b4befe;
    --ctp-text: #cdd6f4;
    --ctp-subtext1: #bac2de;
    --ctp-subtext0: #a6adc8;
    --ctp-overlay2: #9399b2;
    --ctp-overlay1: #7f849c;
    --ctp-overlay0: #6c7086;
    --ctp-surface2: #585b70;
    --ctp-surface1: #45475a;
    --ctp-surface0: #313244;
    --ctp-base: #1e1e2e;
    --ctp-mantle: #181825;
    --ctp-crust: #11111b;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--ctp-base);
    color: var(--ctp-text);
    line-height: 1.7;
    font-size: 16px;
}

.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    background-color: var(--ctp-mantle);
    border-right: 1px solid var(--ctp-surface0);
    padding: 24px 16px;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--ctp-surface0);
}

.sidebar-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ctp-text);
    text-decoration: none;
    display: block;
}

.sidebar-logo span {
    color: var(--ctp-mauve);
}

.sidebar-tagline {
    font-size: 0.85rem;
    color: var(--ctp-subtext0);
    margin-top: 4px;
}

.search-box {
    margin-bottom: 24px;
}

.search-input {
    width: 100%;
    padding: 10px 14px;
    background-color: var(--ctp-surface0);
    border: 1px solid var(--ctp-surface1);
    border-radius: 8px;
    color: var(--ctp-text);
    font-size: 0.9rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input::placeholder {
    color: var(--ctp-overlay0);
}

.search-input:focus {
    outline: none;
    border-color: var(--ctp-mauve);
    box-shadow: 0 0 0 3px rgba(203, 166, 247, 0.15);
}

.nav-section {
    margin-bottom: 20px;
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ctp-overlay1);
    margin-bottom: 8px;
    padding-left: 12px;
}

.nav-link {
    display: block;
    padding: 8px 12px;
    color: var(--ctp-subtext1);
    text-decoration: none;
    font-size: 0.9rem;
    border-radius: 6px;
    transition: all 0.15s ease;
    margin-bottom: 2px;
}

.nav-link:hover {
    background-color: var(--ctp-surface0);
    color: var(--ctp-text);
}

.nav-link.active {
    background-color: var(--ctp-surface0);
    color: var(--ctp-mauve);
    font-weight: 500;
}

.nav-group {
    margin-bottom: 4px;
}

.nav-group-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    color: var(--ctp-subtext1);
    font-size: 0.9rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}

.nav-group-toggle:hover {
    background-color: var(--ctp-surface0);
    color: var(--ctp-text);
}

.nav-group-toggle.active {
    color: var(--ctp-mauve);
}

.nav-group-arrow {
    font-size: 0.7rem;
    transition: transform 0.2s ease;
    color: var(--ctp-overlay1);
}

.nav-group.expanded .nav-group-arrow {
    transform: rotate(90deg);
}

.nav-group-items {
    display: none;
    padding-left: 12px;
    margin-top: 4px;
    border-left: 1px solid var(--ctp-surface1);
    margin-left: 12px;
}

.nav-group.expanded .nav-group-items {
    display: block;
}

.nav-group-items .nav-link {
    font-size: 0.85rem;
    padding: 6px 12px;
    color: var(--ctp-overlay2);
}

.nav-group-items .nav-link:hover {
    color: var(--ctp-text);
}

.nav-group-items .nav-link.active {
    color: var(--ctp-mauve);
    background-color: transparent;
    font-weight: 500;
}

.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 40px 60px;
    max-width: 900px;
}

.content-wrapper {
    display: flex;
    gap: 40px;
}

.content-main {
    flex: 1;
    min-width: 0;
}

.sticky-toc {
    width: 200px;
    flex-shrink: 0;
    display: none;
}

.sticky-toc-inner {
    position: sticky;
    top: 40px;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
}

.sticky-toc-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ctp-overlay1);
    margin-bottom: 12px;
}

.sticky-toc-list {
    list-style: none;
    padding-left: 0;
    margin: 0;
    border-left: 1px solid var(--ctp-surface1);
    padding-left: 12px;
}

.sticky-toc-list li {
    margin-bottom: 8px;
}

.sticky-toc-list a {
    font-size: 0.8rem;
    color: var(--ctp-overlay2);
    text-decoration: none;
    display: block;
    transition: color 0.15s;
}

.sticky-toc-list a:hover {
    color: var(--ctp-text);
}

.sticky-toc-list a.active {
    color: var(--ctp-mauve);
}

@media (min-width: 1200px) {
    .sticky-toc {
        display: block;
    }

    .main-content {
        max-width: 1200px;
    }
}

.breadcrumb {
    font-size: 0.85rem;
    color: var(--ctp-overlay1);
    margin-bottom: 24px;
}

.breadcrumb a {
    color: var(--ctp-overlay1);
    text-decoration: none;
    transition: color 0.15s;
}

.breadcrumb a:hover {
    color: var(--ctp-mauve);
}

.breadcrumb span {
    margin: 0 8px;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--ctp-text);
    margin-bottom: 8px;
    line-height: 1.2;
}

.page-subtitle {
    font-size: 1.15rem;
    color: var(--ctp-subtext0);
    margin-bottom: 32px;
}

h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--ctp-text);
    margin-top: 48px;
    margin-bottom: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--ctp-surface0);
}

h2:first-of-type {
    margin-top: 32px;
    border-top: none;
    padding-top: 0;
}

h3 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--ctp-text);
    margin-top: 32px;
    margin-bottom: 12px;
}

h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ctp-subtext1);
    margin-top: 24px;
    margin-bottom: 10px;
}

p {
    margin-bottom: 16px;
    color: var(--ctp-subtext1);
}

ul, ol {
    margin-bottom: 16px;
    padding-left: 24px;
    color: var(--ctp-subtext1);
}

li {
    margin-bottom: 8px;
}

li::marker {
    color: var(--ctp-mauve);
}

a {
    color: var(--ctp-blue);
    text-decoration: none;
    transition: color 0.15s;
}

a:hover {
    color: var(--ctp-sapphire);
    text-decoration: underline;
}

strong {
    color: var(--ctp-text);
    font-weight: 600;
}

code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    background-color: var(--ctp-surface0);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.875em;
    color: var(--ctp-peach);
}

pre {
    background-color: var(--ctp-mantle);
    border: 1px solid var(--ctp-surface0);
    border-radius: 8px;
    padding: 16px 20px;
    overflow-x: auto;
    margin-bottom: 16px;
}

pre code {
    background: none;
    padding: 0;
    font-size: 0.9rem;
    color: var(--ctp-text);
}

.toc {
    background-color: var(--ctp-mantle);
    border: 1px solid var(--ctp-surface0);
    border-radius: 8px;
    padding: 20px 24px;
    margin-bottom: 32px;
}

.toc-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ctp-overlay1);
    margin-bottom: 12px;
}

.toc-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.toc-list li {
    margin-bottom: 6px;
}

.toc-list a {
    color: var(--ctp-subtext1);
    font-size: 0.9rem;
}

.toc-list a:hover {
    color: var(--ctp-mauve);
    text-decoration: none;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    font-size: 0.9rem;
}

thead {
    background-color: var(--ctp-surface0);
}

th {
    text-align: left;
    padding: 12px 16px;
    font-weight: 600;
    color: var(--ctp-text);
    border-bottom: 2px solid var(--ctp-surface1);
}

td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--ctp-surface0);
    color: var(--ctp-subtext1);
}

tr:hover {
    background-color: var(--ctp-surface0);
}

.tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.tag.required {
    background-color: rgba(243, 139, 168, 0.15);
    color: var(--ctp-red);
}

.tag.optional {
    background-color: rgba(249, 226, 175, 0.15);
    color: var(--ctp-yellow);
}

.tag.not-required {
    background-color: rgba(166, 227, 161, 0.15);
    color: var(--ctp-green);
}

.tag.recommended {
    background-color: rgba(137, 180, 250, 0.15);
    color: var(--ctp-blue);
}

.tag.advanced {
    background-color: rgba(203, 166, 247, 0.15);
    color: var(--ctp-mauve);
}

.info-box {
    background-color: var(--ctp-mantle);
    border-left: 4px solid var(--ctp-blue);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    margin: 24px 0;
}

.info-box-title {
    font-weight: 600;
    color: var(--ctp-blue);
    margin-bottom: 8px;
}

.info-box p:last-child {
    margin-bottom: 0;
}

.warning-box {
    background-color: var(--ctp-mantle);
    border-left: 4px solid var(--ctp-yellow);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    margin: 24px 0;
}

.warning-box-title {
    font-weight: 600;
    color: var(--ctp-yellow);
    margin-bottom: 8px;
}

.warning-box p:last-child {
    margin-bottom: 0;
}

.danger-box {
    background-color: var(--ctp-mantle);
    border-left: 4px solid var(--ctp-red);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    margin: 24px 0;
}

.danger-box-title {
    font-weight: 600;
    color: var(--ctp-red);
    margin-bottom: 8px;
}

.danger-box p:last-child {
    margin-bottom: 0;
}

.success-box {
    background-color: var(--ctp-mantle);
    border-left: 4px solid var(--ctp-green);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    margin: 24px 0;
}

.success-box-title {
    font-weight: 600;
    color: var(--ctp-green);
    margin-bottom: 8px;
}

.success-box p:last-child {
    margin-bottom: 0;
}

.path-display {
    background-color: var(--ctp-mantle);
    border: 1px solid var(--ctp-surface0);
    border-radius: 6px;
    padding: 12px 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--ctp-green);
    margin-bottom: 16px;
    overflow-x: auto;
}

.next-prev {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--ctp-surface0);
}

.next-prev a {
    flex: 1;
    display: block;
    padding: 16px 20px;
    background-color: var(--ctp-mantle);
    border: 1px solid var(--ctp-surface0);
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s;
}

.next-prev a:hover {
    border-color: var(--ctp-mauve);
    background-color: var(--ctp-surface0);
}

.next-prev a:last-child {
    text-align: right;
}

.next-prev-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ctp-overlay1);
    margin-bottom: 4px;
}

.next-prev-title {
    color: var(--ctp-text);
    font-weight: 500;
}

.footer {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--ctp-surface0);
    text-align: center;
}

.footer p {
    font-size: 0.85rem;
    color: var(--ctp-overlay0);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin: 24px 0;
}

.card {
    background-color: var(--ctp-mantle);
    border: 1px solid var(--ctp-surface0);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.2s;
}

.card:hover {
    border-color: var(--ctp-surface1);
    transform: translateY(-2px);
}

.card-link {
    text-decoration: none;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ctp-text);
    margin-bottom: 8px;
}

.card-description {
    font-size: 0.9rem;
    color: var(--ctp-subtext0);
    margin-bottom: 0;
}

.card-icon {
    width: 48px;
    height: 48px;
    background-color: var(--ctp-surface0);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 1.5rem;
}

.feature-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--ctp-mauve);
    border-radius: 50%;
}

.step-list {
    counter-reset: step-counter;
    list-style: none;
    padding-left: 0;
}

.step-list li {
    position: relative;
    padding-left: 48px;
    margin-bottom: 24px;
    counter-increment: step-counter;
}

.step-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background-color: var(--ctp-surface0);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--ctp-mauve);
}

.comparison-table {
    margin: 24px 0;
}

.comparison-table th:first-child {
    width: 30%;
}

.comparison-table .check {
    color: var(--ctp-green);
    font-weight: 600;
}

.comparison-table .cross {
    color: var(--ctp-red);
}

.comparison-table .partial {
    color: var(--ctp-yellow);
}

.kbd {
    display: inline-block;
    padding: 3px 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    background-color: var(--ctp-surface0);
    border: 1px solid var(--ctp-surface1);
    border-radius: 4px;
    color: var(--ctp-text);
    box-shadow: 0 2px 0 var(--ctp-surface1);
}

.hero {
    text-align: center;
    padding: 60px 40px;
    background: linear-gradient(135deg, var(--ctp-mantle) 0%, var(--ctp-base) 100%);
    border-radius: 16px;
    margin-bottom: 48px;
    border: 1px solid var(--ctp-surface0);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--ctp-text);
    margin-bottom: 16px;
}

.hero-title span {
    color: var(--ctp-mauve);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--ctp-subtext0);
    max-width: 600px;
    margin: 0 auto 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--ctp-mauve);
    color: var(--ctp-crust);
}

.btn-primary:hover {
    background-color: var(--ctp-lavender);
    color: var(--ctp-crust);
    text-decoration: none;
}

.btn-secondary {
    background-color: var(--ctp-surface0);
    color: var(--ctp-text);
    border: 1px solid var(--ctp-surface1);
}

.btn-secondary:hover {
    background-color: var(--ctp-surface1);
    text-decoration: none;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 24px;
    margin: 32px 0;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background-color: var(--ctp-mantle);
    border-radius: 12px;
    border: 1px solid var(--ctp-surface0);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--ctp-mauve);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--ctp-subtext0);
}

.accordion {
    margin: 24px 0;
}

.accordion-item {
    background-color: var(--ctp-mantle);
    border: 1px solid var(--ctp-surface0);
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
}

.accordion-header {
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    color: var(--ctp-text);
    transition: background-color 0.2s;
}

.accordion-header:hover {
    background-color: var(--ctp-surface0);
}

.accordion-header::after {
    content: '+';
    font-size: 1.25rem;
    color: var(--ctp-overlay1);
    transition: transform 0.2s;
}

.accordion-item.active .accordion-header::after {
    transform: rotate(45deg);
}

.accordion-content {
    display: none;
    padding: 0 20px 20px;
}

.accordion-item.active .accordion-content {
    display: block;
}

.tabs {
    margin: 24px 0;
}

.tab-buttons {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--ctp-surface0);
    margin-bottom: 20px;
}

.tab-button {
    padding: 12px 20px;
    background: none;
    border: none;
    color: var(--ctp-subtext0);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    transition: color 0.2s;
    font-family: inherit;
}

.tab-button:hover {
    color: var(--ctp-text);
}

.tab-button.active {
    color: var(--ctp-mauve);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--ctp-mauve);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 200;
    background-color: var(--ctp-surface0);
    border: 1px solid var(--ctp-surface1);
    border-radius: 8px;
    padding: 12px;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: var(--ctp-text);
    transition: all 0.2s;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 50;
}

.glossary-term {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--ctp-surface0);
}

.glossary-term:last-child {
    border-bottom: none;
}

.glossary-term-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ctp-mauve);
    margin-bottom: 8px;
}

.glossary-term-definition {
    color: var(--ctp-subtext1);
    margin-bottom: 0;
}

.letter-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
    padding: 16px;
    background-color: var(--ctp-mantle);
    border-radius: 8px;
}

.letter-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--ctp-surface0);
    border-radius: 6px;
    color: var(--ctp-subtext1);
    font-weight: 500;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.15s;
}

.letter-nav a:hover {
    background-color: var(--ctp-mauve);
    color: var(--ctp-crust);
}

.system-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background-color: var(--ctp-mantle);
    border: 1px solid var(--ctp-surface0);
    border-radius: 12px;
    margin-bottom: 16px;
    transition: all 0.2s;
}

.system-card:hover {
    border-color: var(--ctp-surface1);
}

.system-card-icon {
    width: 64px;
    height: 64px;
    background-color: var(--ctp-surface0);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.system-card-content {
    flex: 1;
}

.system-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--ctp-text);
    margin-bottom: 4px;
}

.system-card-years {
    font-size: 0.85rem;
    color: var(--ctp-overlay1);
    margin-bottom: 8px;
}

.system-card-description {
    color: var(--ctp-subtext1);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.system-card-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.system-card-meta span {
    font-size: 0.8rem;
    color: var(--ctp-overlay1);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--ctp-surface0);
    border: 1px solid var(--ctp-surface1);
    border-radius: 8px;
    margin-top: 4px;
    max-height: 300px;
    overflow-y: auto;
    display: none;
    z-index: 100;
}

.search-results.active {
    display: block;
}

.search-result-item {
    padding: 12px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--ctp-surface1);
    transition: background-color 0.15s;
}

.search-result-item:hover {
    background-color: var(--ctp-surface1);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-title {
    color: var(--ctp-text);
    font-weight: 500;
    margin-bottom: 2px;
}

.search-result-path {
    font-size: 0.8rem;
    color: var(--ctp-overlay1);
}

.timeline {
    position: relative;
    padding-left: 32px;
    margin: 32px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--ctp-surface1);
}

.timeline-item {
    position: relative;
    margin-bottom: 32px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -32px;
    top: 4px;
    width: 16px;
    height: 16px;
    background-color: var(--ctp-mauve);
    border-radius: 50%;
    border: 3px solid var(--ctp-base);
}

.timeline-year {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ctp-mauve);
    margin-bottom: 4px;
}

.timeline-content {
    background-color: var(--ctp-mantle);
    padding: 16px 20px;
    border-radius: 8px;
    border: 1px solid var(--ctp-surface0);
}

.timeline-title {
    font-weight: 600;
    color: var(--ctp-text);
    margin-bottom: 8px;
}

.timeline-description {
    color: var(--ctp-subtext1);
    font-size: 0.9rem;
    margin-bottom: 0;
}

.copy-button {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 6px 12px;
    background-color: var(--ctp-surface0);
    border: 1px solid var(--ctp-surface1);
    border-radius: 4px;
    color: var(--ctp-subtext0);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.15s;
}

.copy-button:hover {
    background-color: var(--ctp-surface1);
    color: var(--ctp-text);
}

.code-block {
    position: relative;
}

@media (max-width: 1024px) {
    .main-content {
        padding: 40px 40px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar-overlay.active {
        display: block;
    }

    .main-content {
        margin-left: 0;
        padding: 80px 20px 40px;
    }

    .page-title {
        font-size: 2rem;
    }

    .hero {
        padding: 40px 20px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .next-prev {
        flex-direction: column;
    }

    .next-prev a:last-child {
        text-align: left;
    }

    table {
        display: block;
        overflow-x: auto;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

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

    .tab-buttons {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .system-card {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .stat-grid {
        grid-template-columns: 1fr;
    }
}