:root {
    --bg-dark: #121212;
    --card-bg: #1a1a1a;
    --text-main: #fff;
    --text-muted: #a0a0a0;
    --border-color: rgb(255 255 255 / 8%);
    --primary-blue: #fff;
    --panel-soft: rgb(255 255 255 / 3.5%);
}

body {
    margin: 0;
    font-family:
        Inter,
        -apple-system,
        sans-serif;
    background: #050505;
    color: var(--text-main);
}

.docs-navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 40px;
    border-bottom: 1px solid var(--border-color);
    background: rgb(18 18 18 / 80%);
    backdrop-filter: blur(16px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-left,
.nav-right {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 1.05rem;
}

.nav-brand img {
    width: 24px;
    height: 24px;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgb(255 255 255 / 4%);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid rgb(255 255 255 / 10%);
    font-size: 0.85rem;
    color: var(--text-muted);
    cursor: text;
    transition: border-color 0.2s;
}

.search-box:hover {
    border-color: rgb(255 255 255 / 20%);
}

.search-box kbd {
    background: rgb(255 255 255 / 10%);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: inherit;
    margin-left: 8px;
}

.nav-links {
    display: flex;
    gap: 24px;
}

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


.nav-icons {
    display: flex;
    gap: 16px;
    align-items: center;
    border-left: 1px solid var(--border-color);
    padding-left: 24px;
}

.nav-icons a {
    color: var(--text-muted);
    transition: color 0.2s;
    display: flex;
}


.theme-toggle {
    background: transparent;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0;
}

.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 4px;
}

.docs-main {
    max-width: 1080px;
    margin: 80px auto;
    padding: 0 40px;
}

.docs-hero {
    margin-bottom: 60px;
}

.docs-hero h1 {
    font-size: 4.2rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
    max-width: 800px;
}

.hero-subtitle {
    font-size: 1.6rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-weight: 500;
    max-width: 800px;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.gradient-text {
    color: #fff;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn-primary-blue,
.btn-secondary {
    padding: 12px 24px;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition:
        transform 0.2s,
        background 0.2s;
}

.btn-primary-blue {
    background: var(--primary-blue);
    color: #050505;
    border: 1px solid transparent;
}

.btn-secondary {
    background: rgb(255 255 255 / 8%);
    color: white;
    border: 1px solid transparent;
}

.btn-primary-blue:hover {
    background: #f2f2f2;
    transform: scale(1.02);
}

.btn-secondary:hover {
    background: rgb(255 255 255 / 12%);
    transform: scale(1.02);
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.doc-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: 12px;
    text-decoration: none;
    transition:
        border-color 0.2s,
        background 0.2s;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.doc-card h3 {
    color: var(--text-main);
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0;
}

.doc-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.5;
}

.doc-card:hover {
    border-color: rgb(255 255 255 / 20%);
    background: #222;
}

.docs-layout {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
}

.docs-sidebar {
    position: sticky;
    top: 92px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 14px;
    background: var(--panel-soft);
}

.docs-sidebar a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    padding: 9px 10px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 700;
}

.docs-sidebar a:hover {
    color: #fff;
    background: rgb(255 255 255 / 6%);
}

.nav-links a:hover {
    opacity: 0.7;
}

.nav-icons a:hover {
    color: var(--text-main);
}

.article-section {
    margin: 28px 0;
    padding: 22px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--panel-soft);
}

.article-section h2 {
    color: #fff;
    margin: 0 0 12px;
    font-size: 1.25rem;
}

.article-section h3 {
    color: #fff;
    margin: 18px 0 8px;
    font-size: 1.02rem;
}

.article-section ul,
.article-section ol {
    padding-left: 22px;
}

.article-section code {
    color: #fff;
    background: rgb(255 255 255 / 8%);
    border: 1px solid rgb(255 255 255 / 8%);
    border-radius: 5px;
    padding: 2px 6px;
}

.article-callout {
    border-left: 3px solid #fff;
    padding: 12px 14px;
    background: rgb(255 255 255 / 5.5%);
    border-radius: 6px;
    color: var(--text-muted);
}

.muted-link {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

@media (width <= 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-links,
    .nav-icons,
    .docs-sidebar {
        display: none;
        flex-direction: column;
        width: 100%;
    }

    .nav-links.nav-active,
    .nav-icons.nav-active {
        display: flex;
    }

    .docs-navbar {
        padding: 16px 20px;
        flex-wrap: wrap;
    }

    .nav-right {
        width: 100%;
        flex-direction: column;
        display: none;
        margin-top: 16px;
        gap: 16px;
        align-items: stretch;
    }

    .nav-right.nav-active {
        display: flex;
    }

    .docs-sidebar.nav-active {
        display: block;
        position: static;
        margin-bottom: 24px;
    }

    .docs-hero h1 {
        font-size: 2.2rem;
        margin-bottom: 16px;
    }

    .hero-subtitle {
        font-size: 1.2rem;
        margin-bottom: 30px;
    }

    .docs-main {
        padding: 0 20px;
        margin: 40px auto;
    }

    .docs-layout {
        grid-template-columns: 1fr;
    }
}