/* Open Colors */
:root {
    --violet-6: #7048e8;
    --violet-7: #5f3dc4;
    --orange-6: #f59f00;
    --orange-7: #e67700;
    --gray-0: #f8f9fa;
    --gray-1: #f1f3f5;
    --gray-3: #dee2e6;
    --gray-5: #adb5bd;
    --gray-7: #495057;
    --gray-9: #212529;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 60px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--gray-9);
    background: white;
}

/* Nav */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: white;
    border-bottom: 1px solid var(--gray-3);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}

.nav-logo {
    font-weight: 800;
    font-size: 1.25rem;
    text-decoration: none;
    color: var(--gray-9);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-logo-img {
    height: 28px;
    width: 28px;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-7);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--violet-6);
}

.nav-github {
    display: flex;
    align-items: center;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle svg {
    width: 24px;
    height: 24px;
    stroke: var(--gray-7);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Page header */
.page-header {
    padding: 3rem 0 2rem;
    border-bottom: 1px solid var(--gray-3);
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--gray-9);
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.25rem;
    color: var(--gray-7);
}

.page-header p a {
    color: var(--violet-6);
    text-decoration: none;
}

.page-header p a:hover {
    text-decoration: underline;
}

/* Sections */
section {
    padding: 3rem 0;
    border-bottom: 1px solid var(--gray-3);
}

section:last-of-type {
    border-bottom: none;
}

section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-9);
}

section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--gray-9);
}

section p {
    font-size: 1.05rem;
    color: var(--gray-7);
    margin-bottom: 1rem;
    max-width: 800px;
}

/* Code */
code {
    background: var(--gray-0);
    padding: 0.15em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
}

pre {
    background: var(--gray-9);
    color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 1rem 0;
}

pre code {
    background: none;
    padding: 0;
    font-size: inherit;
}

/* Tables */
.table-wrapper {
    overflow-x: auto;
    margin: 1rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

th, td {
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--gray-3);
}

th {
    background: var(--gray-0);
    font-weight: 600;
    color: var(--gray-9);
    white-space: nowrap;
}

td code {
    white-space: nowrap;
}

.category-row td {
    background: var(--gray-0);
    font-weight: 600;
    color: var(--violet-6);
    padding-top: 1rem;
}

.severity-error {
    color: #c92a2a;
    font-weight: 600;
}

.severity-warning {
    color: #e67700;
    font-weight: 600;
}

/* Lists */
ul.rules {
    margin: 1rem 0;
    padding-left: 1.5rem;
    color: var(--gray-7);
}

ul.rules li {
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

ol, ul.plain {
    margin: 1rem 0;
    padding-left: 1.5rem;
    color: var(--gray-7);
}

ol li, ul.plain li {
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

/* Code wrapper with copy button */
.code-wrapper {
    position: relative;
}

.copy-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    color: var(--gray-5);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
    font-family: inherit;
}

.code-wrapper:hover .copy-btn,
.install-wrapper:hover .copy-btn {
    opacity: 1;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    color: white;
}

/* Syntax Highlighting */
.hljs-attr { color: #82aaff; }
.hljs-string { color: #c3e88d; }
.hljs-number { color: #f78c6c; }
.hljs-comment { color: var(--gray-5); font-style: italic; }
.hljs-literal { color: #ff966c; }

/* Content layout */
.content-layout {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
}

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

/* TOC */
.toc-sidebar {
    width: 220px;
    flex-shrink: 0;
    position: sticky;
    top: 72px;
    max-height: calc(100vh - 88px);
    overflow-y: auto;
    padding: 1rem 0;
}

.toc {
    background: var(--gray-0);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
}

.toc h3 {
    margin-top: 0;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-7);
}

.toc ul {
    list-style: none;
    padding: 0;
}

.toc li {
    margin-bottom: 0.3rem;
}

.toc a {
    text-decoration: none;
    color: var(--violet-6);
    font-size: 0.85rem;
}

.toc a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    padding: 3rem 0;
    background: var(--gray-0);
    border-top: 1px solid var(--gray-3);
    text-align: center;
    margin-top: 2rem;
}

footer p {
    color: var(--gray-7);
    margin: 0.5rem 0;
}

footer a {
    color: var(--violet-6);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }

    section h2 {
        font-size: 1.5rem;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem 2rem;
        border-bottom: 1px solid var(--gray-3);
        gap: 0.75rem;
    }

    .nav-links.open {
        display: flex;
    }

    th, td {
        padding: 0.5rem 0.75rem;
        font-size: 0.85rem;
    }

    .content-layout {
        display: block;
    }

    .toc-sidebar {
        width: auto;
        position: static;
        max-height: none;
        padding: 0;
        margin-bottom: 1rem;
    }
}