:root {
    --bg: #f3f7fb;
    --bg-deep: #dfeaf4;
    --surface: rgba(255, 255, 255, 0.82);
    --surface-strong: rgba(255, 255, 255, 0.96);
    --surface-muted: rgba(233, 241, 248, 0.8);
    --border: rgba(28, 53, 77, 0.12);
    --border-strong: rgba(28, 53, 77, 0.2);
    --text: #12263a;
    --text-soft: #486277;
    --text-muted: #667f92;
    --accent: #0b84c9;
    --accent-strong: #08679b;
    --accent-soft: rgba(11, 132, 201, 0.12);
    --success-soft: rgba(0, 128, 106, 0.12);
    --shadow-lg: 0 24px 60px rgba(14, 31, 53, 0.14);
    --shadow-md: 0 12px 30px rgba(14, 31, 53, 0.1);
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 14px;
    --sidebar-width: 320px;
}

@font-face {
    font-family: 'Open Sans';
    font-weight: 400;
    font-style: normal;
    src: url('../fonts/OpenSans-Regular-webfont.eot');
    src:
        local('Open Sans'),
        local('OpenSans'),
        url('../fonts/OpenSans-Regular-webfont.eot?#iefix') format('embedded-opentype'),
        url('../fonts/OpenSans-Regular-webfont.woff') format('woff'),
        url('../fonts/OpenSans-Regular-webfont.svg#open_sansregular') format('svg');
}

@font-face {
    font-family: 'Open Sans';
    font-weight: 700;
    font-style: normal;
    src: url('../fonts/OpenSans-Bold-webfont.eot');
    src:
        local('Open Sans Bold'),
        local('OpenSans-Bold'),
        url('../fonts/OpenSans-Bold-webfont.eot?#iefix') format('embedded-opentype'),
        url('../fonts/OpenSans-Bold-webfont.woff') format('woff'),
        url('../fonts/OpenSans-Bold-webfont.svg#open_sansbold') format('svg');
}

@font-face {
    font-family: 'Open Sans Light';
    font-weight: 300;
    font-style: normal;
    src: url('../fonts/OpenSans-Light-webfont.eot');
    src:
        local('Open Sans Light'),
        local('OpenSans Light'),
        url('../fonts/OpenSans-Light-webfont.eot?#iefix') format('embedded-opentype'),
        url('../fonts/OpenSans-Light-webfont.woff') format('woff'),
        url('../fonts/OpenSans-Light-webfont.svg#open_sanslight') format('svg');
}

html {
    overflow-y: auto;
    background: linear-gradient(180deg, #eff5fa 0%, #f7fbff 100%);
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Open Sans', 'Segoe UI', sans-serif;
    line-height: 1.65;
    color: var(--text);
    background: transparent;
}

a,
a:visited,
a:active {
    color: var(--accent-strong);
    text-decoration: none;
}

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

tt,
code,
kbd,
samp,
.name,
.signature {
    font-family: 'SFMono-Regular', 'Cascadia Code', 'Fira Code', Consolas, monospace;
}

.site-backdrop {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at top left, rgba(11, 132, 201, 0.18), transparent 32%),
        radial-gradient(circle at right 10%, rgba(0, 128, 106, 0.12), transparent 24%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.6), rgba(243, 247, 251, 0.95));
    pointer-events: none;
    z-index: -2;
}

.site-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(18, 38, 58, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(18, 38, 58, 0.03) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.28), transparent 75%);
    pointer-events: none;
    z-index: -1;
}

.app-shell {
    display: grid;
    grid-template-columns: minmax(260px, var(--sidebar-width)) minmax(0, 1fr);
    gap: 28px;
    max-width: 1680px;
    margin: 0 auto;
    padding: 24px;
    box-sizing: border-box;
}

.site-sidebar {
    position: sticky;
    top: 24px;
    height: calc(100vh - 48px);
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.brand-card,
.site-nav,
.site-header,
.doc-section,
.hero-card,
.prose-card,
.symbol-card,
.site-footer {
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.brand-card,
.site-nav {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.brand-card {
    padding: 24px;
}

.brand-link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--text);
}

.brand-kicker,
.page-eyebrow,
.hero-kicker,
.section-kicker,
.doc-kind-label,
.symbol-kind {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.74rem;
    font-weight: 700;
}

.brand-kicker,
.page-eyebrow,
.hero-kicker,
.section-kicker,
.doc-kind-label {
    color: var(--accent-strong);
}

.brand-title {
    font-family: 'Open Sans Light', 'Open Sans', sans-serif;
    font-size: 2rem;
    line-height: 1;
    letter-spacing: -0.06em;
}

.brand-version {
    width: fit-content;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent-strong);
    font-size: 0.82rem;
    font-weight: 700;
}

.brand-description,
.page-subtitle {
    margin: 0;
    color: var(--text-soft);
}

.nav-toggle {
    display: none;
    border: 0;
    border-radius: 14px;
    padding: 0.95rem 1rem;
    background: var(--text);
    color: #fff;
    font: inherit;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.site-nav {
    flex: 1;
    overflow: auto;
    padding: 18px;
}

.nav-home {
    margin-bottom: 16px;
}

.nav-home a {
    display: block;
    padding: 0.95rem 1rem;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(11, 132, 201, 0.12), rgba(0, 128, 106, 0.08));
    color: var(--text);
    font-weight: 700;
}

.nav-section + .nav-section {
    margin-top: 18px;
}

.nav-section h3 {
    margin: 0 0 0.7rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav-list,
.site-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-nav li + li {
    margin-top: 0.35rem;
}

.site-nav li a {
    display: block;
    padding: 0.55rem 0.75rem;
    border-radius: 12px;
    color: var(--text-soft);
    transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.site-nav li a:hover {
    background: rgba(11, 132, 201, 0.08);
    color: var(--text);
    transform: translateX(2px);
}

.site-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.site-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.88), rgba(239, 247, 252, 0.72));
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 30px 34px;
    box-shadow: var(--shadow-md);
}

.page-title {
    margin: 0;
    font-family: 'Open Sans Light', 'Open Sans', sans-serif;
    font-size: clamp(2.8rem, 4vw, 4.8rem);
    line-height: 0.95;
    letter-spacing: -0.07em;
}

#main {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.doc-section,
.hero-card,
.prose-card,
.site-footer {
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.doc-section,
.hero-card,
.prose-card {
    padding: 30px 34px;
}

.doc-page-header {
    margin-bottom: 1.5rem;
}

.doc-heading-meta {
    margin-bottom: 0.75rem;
}

.doc-heading {
    margin: 0;
    font-size: clamp(1.9rem, 2.4vw, 2.8rem);
    line-height: 1.06;
    letter-spacing: -0.05em;
}

.class-description,
.description,
.summary,
.hero-description,
.param-desc {
    color: var(--text-soft);
}

.class-description,
.description,
.summary {
    margin: 1rem 0 0;
}

.doc-article > .subsection-title:first-of-type {
    margin-top: 2rem;
}

h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    color: var(--text);
}

h3.subsection-title {
    margin: 2rem 0 1rem;
    font-size: 1.2rem;
    letter-spacing: -0.03em;
}

h5,
.container-overview .subsection-title {
    margin: 1.4rem 0 0.8rem;
    font-size: 0.98rem;
    letter-spacing: 0.02em;
}

h6 {
    margin: 1rem 0 0.5rem;
    font-size: 0.9rem;
    color: var(--text-soft);
}

.hero-card {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(231, 243, 250, 0.9)),
        linear-gradient(120deg, rgba(11, 132, 201, 0.16), transparent 42%);
}

.hero-card::after {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(11, 132, 201, 0.16), transparent 68%);
    pointer-events: none;
}

.hero-copy {
    position: relative;
    z-index: 1;
}

.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.8fr);
    gap: 22px;
    align-items: stretch;
}

.hero-copy h2 {
    font-size: clamp(2.2rem, 3vw, 3.4rem);
    letter-spacing: -0.06em;
}

.hero-copy h2 span {
    color: var(--text-muted);
    font-size: 0.65em;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 1.25rem;
}

.hero-lead {
    max-width: 52rem;
    margin: 1rem 0 0;
    color: var(--text-soft);
    font-size: 1.02rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1.35rem;
}

.hero-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 1rem;
    border: 1px solid var(--border-strong);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.72);
    color: var(--text);
    font-weight: 700;
    transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.hero-action:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.94);
    border-color: rgba(11, 132, 201, 0.22);
}

.hero-action.primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    border-color: transparent;
    color: #fff;
}

.hero-panel {
    position: relative;
    z-index: 1;
    padding: 1.25rem;
    border: 1px solid rgba(18, 38, 58, 0.1);
    border-radius: 22px;
    background: rgba(248, 252, 255, 0.82);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.hero-panel-title {
    margin: 0 0 0.8rem;
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.hero-snippet {
    margin: 0;
    background: #eff6fb;
}

.hero-points {
    margin: 1rem 0 0;
    padding-left: 1rem;
    color: var(--text-soft);
}

.hero-points li + li {
    margin-top: 0.5rem;
}

.hero-tags span,
.returns-type span,
.symbol-kind,
.doc-kind-label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    width: fit-content;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background: var(--accent-soft);
}

.hero-tags span {
    color: var(--accent-strong);
    font-size: 0.82rem;
    font-weight: 700;
}

.prose-card > :first-child,
.description > :first-child,
.param-desc > :first-child {
    margin-top: 0;
}

.prose-card > :last-child,
.description > :last-child,
.param-desc > :last-child {
    margin-bottom: 0;
}

.homepage-strip,
.homepage-grid {
    display: grid;
    gap: 18px;
}

.stats-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stats-card,
.homepage-card {
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stats-card {
    padding: 20px 22px;
}

.stats-card strong {
    display: block;
    font-family: 'Open Sans Light', 'Open Sans', sans-serif;
    font-size: 2.2rem;
    letter-spacing: -0.06em;
}

.stats-card span {
    display: block;
    margin-top: 0.35rem;
    font-weight: 700;
    color: var(--text);
}

.stats-card p,
.homepage-card p {
    margin: 0.65rem 0 0;
    color: var(--text-soft);
}

.homepage-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.homepage-card {
    padding: 22px 24px;
}

.homepage-card-wide {
    grid-column: span 2;
}

.homepage-card h3 {
    margin-top: 0.2rem;
    font-size: 1.22rem;
    line-height: 1.2;
}

.homepage-card a,
.guide-card a {
    position: relative;
    z-index: 1;
}

.compact-header {
    margin-bottom: 1.2rem;
}

.compact-header h3 {
    font-size: 1.35rem;
}

.homepage-guides {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.guide-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.guide-grid-secondary {
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
}

.guide-card {
    padding: 24px 26px;
    background: var(--surface-strong);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    scroll-margin-top: 120px;
}

.guide-card h3 {
    margin-top: 0.2rem;
    font-size: 1.22rem;
    line-height: 1.2;
}

.guide-card p {
    margin: 0.75rem 0 0;
    color: var(--text-soft);
}

.guide-card pre {
    margin: 1rem 0 0;
}

.guide-list {
    margin: 1rem 0 0;
    padding-left: 1.1rem;
    color: var(--text-soft);
}

.guide-list li + li {
    margin-top: 0.5rem;
}

.guide-list-tight {
    margin-top: 0.85rem;
}

.symbol-list {
    display: grid;
    gap: 18px;
}

.symbol-card {
    padding: 22px 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(250, 252, 255, 0.98), rgba(243, 248, 251, 0.9));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.symbol-heading {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.8rem;
}

.symbol-kind {
    color: var(--accent-strong);
}

.name {
    display: inline-block;
    margin: 0;
    padding: 0.18rem 0.5rem;
    border-radius: 10px;
    background: rgba(11, 132, 201, 0.08);
    color: var(--text);
    font-size: 1.05rem;
    word-break: break-word;
}

.variation {
    display: none;
}

.signature-attributes,
.type-signature,
.ancestors,
.attribs {
    color: var(--text-muted);
}

.ancestors a,
.attribs a {
    color: inherit !important;
}

.details {
    display: grid;
    grid-template-columns: minmax(120px, 180px) minmax(0, 1fr);
    gap: 0.8rem 1rem;
    margin: 1.3rem 0 0;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(18, 38, 58, 0.08);
    border-radius: var(--radius-md);
    background: var(--surface-muted);
}

.details dt {
    margin: 0;
    font-weight: 700;
    color: var(--text);
}

.details dd {
    margin: 0;
    color: var(--text-soft);
}

.details ul,
.details li,
.tutorial-children,
.symbol-index {
    margin: 0;
    padding: 0;
    list-style: none;
}

.details li + li,
.tutorial-children li + li {
    margin-top: 0.35rem;
}

.table-wrap {
    margin-top: 1rem;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255, 255, 255, 0.84);
}

thead tr {
    background: rgba(11, 132, 201, 0.08);
}

th,
td {
    padding: 0.85rem 0.9rem;
    border-bottom: 1px solid rgba(18, 38, 58, 0.08);
    text-align: left;
    vertical-align: top;
}

th {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-soft);
}

tbody tr:last-child td {
    border-bottom: 0;
}

.params .name,
.props .name,
.name code {
    color: var(--text);
    font-size: 0.94rem;
}

.params td.description > p:first-child,
.props td.description > p:first-child {
    margin-top: 0;
}

.params td.description > p:last-child,
.props td.description > p:last-child {
    margin-bottom: 0;
}

.code-caption {
    margin: 1rem 0 0.45rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-style: italic;
}

.prettyprint {
    width: 100%;
    overflow: auto;
    border: 1px solid rgba(18, 38, 58, 0.1);
    border-radius: 16px;
    background: #f5f9fc;
}

.prettyprint.source {
    width: 100%;
}

.prettyprint code {
    display: block;
    margin: 0;
    padding: 1rem 1.15rem;
    background: transparent;
    color: var(--text);
    font-size: 0.94rem;
    line-height: 1.7;
}

.prettyprint code span.line {
    display: inline-block;
}

.prettyprint.linenums {
    padding-left: 0;
    user-select: none;
}

.prettyprint.linenums ol {
    margin: 0;
    padding-left: 3.8rem;
}

.prettyprint.linenums li {
    border-left: 1px solid rgba(18, 38, 58, 0.08);
    padding-left: 1rem;
}

.prettyprint.linenums li.selected,
.prettyprint.linenums li.selected * {
    background-color: rgba(255, 236, 153, 0.44);
}

.prettyprint.linenums li * {
    user-select: text;
}

.returns-type,
.exception-block {
    margin-top: 0.85rem;
}

.returns-type {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.55rem;
    color: var(--text-soft);
}

.returns-type span {
    color: var(--accent-strong);
}

.symbol-index {
    display: grid;
    gap: 0.55rem 1rem;
    grid-template-columns: minmax(180px, 260px) minmax(0, 1fr);
}

.symbol-index dt,
.symbol-index dd {
    margin: 0;
}

.tutorial-children {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.tutorial-children a {
    display: inline-block;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    background: rgba(11, 132, 201, 0.08);
}

article img {
    max-width: 100%;
    border-radius: 16px;
}

.site-footer {
    padding: 18px 22px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.important {
    color: #a34800;
}

.yes-def {
    text-indent: -9999px;
}

.disabled {
    color: #454545;
}

@media (max-width: 1100px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .site-sidebar {
        position: static;
        height: auto;
    }

    .nav-toggle {
        display: block;
    }

    .site-nav {
        display: none;
        max-height: 60vh;
    }

    .app-shell.nav-open .site-nav {
        display: block;
    }

    .hero-layout,
    .stats-strip,
    .homepage-grid,
    .guide-grid,
    .guide-grid-secondary {
        grid-template-columns: 1fr 1fr;
    }

    .homepage-card-wide {
        grid-column: span 2;
    }
}

@media (max-width: 720px) {
    .app-shell {
        padding: 14px;
        gap: 16px;
    }

    .site-header,
    .doc-section,
    .hero-card,
    .prose-card,
    .site-footer,
    .brand-card,
    .site-nav {
        padding: 22px 20px;
        border-radius: 22px;
    }

    .page-title {
        font-size: 2.6rem;
    }

    .hero-layout,
    .stats-strip,
    .homepage-grid,
    .guide-grid,
    .guide-grid-secondary {
        grid-template-columns: 1fr;
    }

    .homepage-card-wide {
        grid-column: span 1;
    }

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

    .symbol-index {
        grid-template-columns: 1fr;
    }

    .symbol-heading {
        align-items: flex-start;
    }
}