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


:root {
    --background: #0a0a0a;
    --text: #e0e0e0;
    --text-dim: #808080;
    --accent: #ffffff;
    --surface: #1a1a1a;
    --surface-raised: #262626;
    --border: #333333;
    --code-bg: #141414;
    --nav-height: 64px;
}

body {
    background-color: var(--background);
    color: var(--text);
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Segoe UI Mono', monospace;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}


h1, h2, h3, h4 {
    font-family: 'IBM Plex Mono', 'SF Mono', monospace;
    font-weight: 500;
    letter-spacing: -0.02em;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; margin-bottom: 2rem; }
h3 { font-size: 1.5rem; margin-bottom: 1rem; }


nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: 1.2rem;
    font-weight: bold;
    letter-spacing: 0.1em;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: var(--text);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--accent);
}


header {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--nav-height) + 2rem) 2rem 2rem;
    background: 
        linear-gradient(0deg, var(--background) 0%, transparent 100%),
        repeating-linear-gradient(
            45deg,
            var(--surface) 0px,
            var(--surface) 1px,
            var(--background) 1px,
            var(--background) 10px
        );
}

.hero {
    max-width: 800px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin: 1rem 0 3rem;
}


.math-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
}

.math-block h3 {
    font-size: 1.2em;
    color: var(--text);
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.75rem;
    margin: 2rem 0 1.5rem;
}

.katex-display {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 4px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.katex {
    font-size: 1.1em !important;
    color: var(--text) !important;
}

.katex .mord.text {
    color: var(--text-dim) !important;
}

.katex-html {
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0.5rem 0;
    scrollbar-width: thin;
    scrollbar-color: var(--border) var(--background);
}

.implementation-details {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
}

.implementation-details ul {
    list-style: none;
    padding-left: 0;
}

.implementation-details ul ul {
    padding-left: 2rem;
    margin: 0.5rem 0;
}

.implementation-details li {
    margin: 0.5rem 0;
    color: var(--text);
}

.implementation-details li::before {
    content: "→";
    margin-right: 0.5rem;
    color: var(--border);
}

.implementation-details li li::before {
    content: "•";
}


.math-content {
    margin-top: 1rem;
}

.math-highlight {
    display: inline-block;
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.math-caption {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-dim);
}


main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

section {
    margin-bottom: 6rem;
}


.code-block {
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
}

pre {
    overflow-x: auto;
}

code {
    font-family: 'Fira Code', 'SF Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.code-annotation {
    font-size: 0.9em;
    color: var(--text-dim);
    margin-top: 0.5rem;
    font-style: italic;
}


.diagram-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
    overflow-x: auto;
}

.mermaid {
    background: transparent;
    margin: 0 auto;
    max-width: 100%;
}

.mermaid .node rect,
.mermaid .node circle,
.mermaid .node ellipse,
.mermaid .node polygon,
.mermaid .node path {
    stroke-width: 1px;
}

.mermaid .edgePath .path {
    stroke: var(--text) !important;
    stroke-width: 1px;
}

.mermaid .edgeLabel {
    color: var(--text) !important;
    background-color: transparent !important;
}

.mermaid .label {
    color: var(--text);
    font-family: 'SF Mono', monospace;
}

.mermaid .cluster rect {
    stroke: var(--border) !important;
    stroke-width: 1px !important;
}


.mermaid text {
    fill: var(--text) !important;
    font-family: 'SF Mono', monospace !important;
}


.mermaid .marker {
    fill: var(--text) !important;
    stroke: var(--text) !important;
}


ul {
    list-style: none;
    margin-left: 1rem;
}

li {
    margin: 0.5rem 0;
    position: relative;
}


.analysis-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
}


.optimization-block {
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
}

.optimization-block li {
    font-family: 'Fira Code', monospace;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
}

.optimization-block li:last-child {
    border-bottom: none;
}


.comparison-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
}

.monochrome-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 2rem 0;
    font-family: 'SF Mono', monospace;
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.monochrome-table th,
.monochrome-table td {
    padding: 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
    line-height: 1.6;
}

.monochrome-table th {
    background: var(--background);
    font-weight: bold;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.9em;
}

.monochrome-table td {
    font-size: 0.95em;
}

.monochrome-table tr:last-child td {
    border-bottom: none;
}

.monochrome-table td:not(:last-child) {
    border-right: 1px solid var(--border);
}

.monochrome-table tr:nth-child(even) {
    background: var(--surface);
}


.key-differences {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.key-differences h4 {
    font-size: 1.1em;
    margin-bottom: 1.5rem;
    color: var(--text);
    letter-spacing: 0.5px;
}

.key-differences ul {
    list-style: none;
    padding-left: 0;
}

.key-differences li {
    margin: 1rem 0;
    padding-left: 1.75rem;
    position: relative;
    line-height: 1.6;
}

.key-differences li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--border);
    font-weight: bold;
}

.key-differences strong {
    color: var(--text);
    font-weight: bold;
    letter-spacing: 0.5px;
}


.author-banner {
    margin: 2rem 0;
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.author-tag {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-family: 'SF Mono', monospace;
}

.designer {
    color: var(--text-dim);
    font-size: 0.9em;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.author-main {
    font-size: 1.5em;
    font-weight: bold;
    color: var(--text);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.author-name {
    color: var(--text);
    font-size: 1.1em;
    letter-spacing: 1px;
}


.footer-signature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border);
}

.copyright {
    color: var(--text-dim);
    font-size: 0.9em;
}

.author-signature {
    font-family: 'SF Mono', monospace;
    font-size: 1em;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.author-signature .separator {
    color: var(--border);
}

.author-signature .author-main {
    font-size: 1.1em;
    border-bottom: 2px solid var(--border);
    padding-bottom: 2px;
}

.author-signature .author-full {
    color: var(--text);
}


.header-content {
    text-align: center;
    padding: 4rem 0 2rem;
}

.header-content h1 {
    font-size: 3em;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 1.2em;
    color: var(--text-dim);
    margin-bottom: 2rem;
}


footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-dim);
    font-size: 0.9rem;
}


@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

section {
    animation: fadeIn 0.6s ease-out forwards;
}


@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .nav-content {
        padding: 0 1rem;
    }
    
    nav ul {
        gap: 1rem;
    }
    
    .math-block, .code-block, .analysis-block {
        padding: 1rem;
    }
    
    .katex-display {
        font-size: 0.9em !important;
    }
}


@media print {
    body {
        background: white;
        color: black;
    }
    
    nav {
        position: static;
        border-bottom: 1px solid #ccc;
    }
    
    header {
        height: auto;
        min-height: 0;
    }
    
    .math-block, .code-block, .analysis-block {
        break-inside: avoid;
        page-break-inside: avoid;
        border: 1px solid #ccc;
    }
}


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

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-dim);
}


.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 1rem 0;
}

.social-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9em;
    font-weight: 500;
    transition: all 0.2s ease;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.social-button:hover {
    background: var(--surface-raised);
    transform: translateY(-1px);
}

.social-button svg {
    transition: transform 0.2s ease;
    fill: currentColor;
    opacity: 0.8;
}

.social-button:hover svg {
    transform: scale(1.1);
    opacity: 1;
}

[data-theme="dark"] .social-button {
    border-color: var(--border);
}


.implementation-info {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.language-badge {
    background: var(--surface-raised);
    color: var(--text);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-family: 'SF Mono', monospace;
    font-size: 0.9em;
    letter-spacing: 1px;
    border: 1px solid var(--border);
}

.version {
    color: var(--text-dim);
    font-size: 0.9em;
}


.implementation-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
}

.integration-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.option {
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.5rem;
}

.option h4 {
    color: var(--text);
    margin-bottom: 1rem;
    font-size: 1.1em;
}

.option pre.code-block {
    margin: 1rem 0;
    padding: 1rem;
    background: var(--code-bg);
    border-radius: 4px;
    overflow-x: auto;
}

.option code {
    background: var(--code-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 2px;
    font-size: 0.9em;
}


.example-block {
    margin: 2rem 0;
}

.example-block h4 {
    color: var(--text);
    margin-bottom: 1rem;
}


.application-list, .performance-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.application-list li, .performance-list li {
    margin: 1.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.application-list li::before, .performance-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--border);
}

.application-list strong {
    display: block;
    color: var(--text);
    margin-bottom: 0.5rem;
    font-size: 1.1em;
}

.application-list p, .performance-list li {
    color: var(--text-dim);
    line-height: 1.6;
}