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

:root {
    --page-bg: #efe7da;
    --page-surface: rgba(252, 249, 243, 0.9);
    --page-surface-strong: #faf7f1;
    --page-line: rgba(34, 27, 18, 0.1);
    --page-line-strong: rgba(34, 27, 18, 0.16);
    --page-text: #1d1814;
    --page-muted: #665c50;
    --page-soft: #94887b;
    --page-shadow: 0 20px 60px rgba(30, 22, 16, 0.12);
    --page-shadow-soft: 0 12px 32px rgba(30, 22, 16, 0.08);
    --page-radius-xl: 34px;
    --page-radius-lg: 24px;
    --page-radius-md: 18px;
    --page-radius-sm: 12px;
    --app-accent: #184338;
    --app-accent-soft: rgba(24, 67, 56, 0.1);
    --app-accent-rgb: 24, 67, 56;
    --app-contrast: #f7efe2;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Avenir Next", "Helvetica Neue", "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at 10% 0%, rgba(213, 139, 65, 0.16), transparent 24%),
        radial-gradient(circle at 100% 10%, rgba(var(--app-accent-rgb), 0.12), transparent 28%),
        linear-gradient(180deg, #f4ede1 0%, var(--page-bg) 46%, #ece1d1 100%);
    color: var(--page-text);
    line-height: 1.7;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(transparent 0, transparent calc(100% - 1px), rgba(255, 255, 255, 0.12) calc(100% - 1px)),
        linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), rgba(255, 255, 255, 0.08) calc(100% - 1px));
    background-size: 100% 4.5rem, 4.5rem 100%;
    opacity: 0.15;
}

.page-header,
.container,
.site-footer {
    position: relative;
    z-index: 1;
}

.page-header {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    column-gap: 1rem;
    row-gap: 0.45rem;
    width: min(calc(100% - 2rem), 1240px);
    margin: 1rem auto 0;
    padding: 1rem 1.1rem;
    border-radius: 1.6rem;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background:
        radial-gradient(circle at 82% 10%, rgba(213, 139, 65, 0.14), transparent 24%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(248, 243, 235, 0.9));
    box-shadow: var(--page-shadow-soft);
    color: var(--app-contrast);
}

.page-header::before {
    content: none;
}

.page-header > * {
    position: relative;
    z-index: 1;
}

.page-header .app-icon {
    grid-row: span 2;
    width: 3.4rem;
    height: 3.4rem;
    border-radius: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--app-accent-rgb), 0.08);
    border: 1px solid rgba(var(--app-accent-rgb), 0.12);
    color: var(--app-accent);
    font-size: 1.45rem;
    line-height: 1;
}

.page-header h1 {
    margin: 0;
    align-self: end;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--page-soft);
}

.page-header .app-name {
    margin: 0;
    max-width: 22ch;
    font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
    font-size: clamp(1.28rem, 2.4vw, 2rem);
    line-height: 1.02;
    letter-spacing: -0.03em;
    color: var(--page-text);
}

.page-summary {
    grid-column: 2;
    max-width: 70ch;
    display: grid;
    gap: 0.6rem;
}

.page-summary p {
    margin: 0;
    color: var(--page-muted);
    font-size: 0.95rem;
}

.page-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
}

.page-badges span {
    min-height: 30px;
    padding: 0.34rem 0.68rem;
    border-radius: 999px;
    background: rgba(var(--app-accent-rgb), 0.08);
    border: 1px solid rgba(var(--app-accent-rgb), 0.12);
    color: var(--app-accent);
    font-size: 0.76rem;
    font-weight: 700;
}

.container {
    width: min(calc(100% - 2rem), 1240px);
    margin: 0 auto;
    padding: 0.9rem 0 4rem;
}

.page-shell {
    display: grid;
    grid-template-columns: minmax(250px, 320px) minmax(0, 1fr);
    gap: 1.2rem;
    align-items: start;
}

.document-rail {
    position: sticky;
    top: 1rem;
    display: grid;
    gap: 1rem;
}

.rail-card {
    border-radius: var(--page-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.18);
    background:
        radial-gradient(circle at top right, rgba(213, 139, 65, 0.14), transparent 26%),
        linear-gradient(180deg, rgba(250, 247, 241, 0.94), rgba(246, 241, 233, 0.88));
    box-shadow: var(--page-shadow-soft);
    padding: 1rem;
}

.rail-meta {
    display: grid;
    gap: 0.7rem;
}

.rail-meta strong {
    display: block;
    margin-bottom: 0.2rem;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.25rem;
}

.toc-list a {
    display: block;
    text-decoration: none;
    padding: 0.55rem 0.7rem;
    border-radius: 12px;
    color: var(--page-muted);
    transition: background 160ms ease, color 160ms ease;
}

.toc-list a:hover,
.toc-list a:focus-visible,
.toc-list a.is-active {
    background: rgba(var(--app-accent-rgb), 0.08);
    color: var(--page-text);
}

.document-main {
    min-width: 0;
}

.document-topbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.back-link,
.page-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.68rem 0.95rem;
    border-radius: 999px;
    border: 1px solid var(--page-line);
    background: rgba(255, 255, 255, 0.44);
    box-shadow: var(--page-shadow-soft);
    color: var(--page-muted);
    text-decoration: none;
    transition: transform 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.back-link:hover,
.back-link:focus-visible,
.page-action:hover,
.page-action:focus-visible {
    transform: translateY(-1px);
    background: rgba(var(--app-accent-rgb), 0.08);
    border-color: rgba(var(--app-accent-rgb), 0.15);
    color: var(--page-text);
}

.page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.page-action {
    font-size: 0.8rem;
    font-weight: 700;
}

.page-action.store {
    background: rgba(var(--app-accent-rgb), 0.1);
    color: var(--app-accent);
    border-color: rgba(var(--app-accent-rgb), 0.12);
}

.content {
    border-radius: var(--page-radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.18);
    background:
        linear-gradient(180deg, rgba(252, 249, 243, 0.94), rgba(247, 242, 234, 0.92));
    box-shadow: var(--page-shadow);
    padding: clamp(1.4rem, 3vw, 3rem);
}

.last-updated {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    align-items: center;
    margin-bottom: 1.6rem;
    padding: 0.6rem 0.9rem;
    border-radius: 999px;
    background: rgba(var(--app-accent-rgb), 0.08);
    color: var(--page-muted);
    font-size: 0.84rem;
}

h2 {
    margin: 2.5rem 0 0.95rem;
    font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
    font-size: clamp(1.16rem, 1.5vw, 1.55rem);
    line-height: 1;
    letter-spacing: -0.03em;
    scroll-margin-top: 1rem;
}

h3 {
    margin: 1.5rem 0 0.6rem;
    font-size: 0.94rem;
    font-weight: 750;
    color: var(--page-text);
}

p,
ul,
ol,
table {
    margin-top: 0;
}

p {
    margin-bottom: 1rem;
    color: var(--page-muted);
    font-size: 0.96rem;
}

ul,
ol {
    margin: 0.8rem 0 1rem 1.3rem;
    color: var(--page-muted);
    padding: 0;
}

li {
    margin-bottom: 0.45rem;
}

strong {
    color: var(--page-text);
}

a {
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.16em;
}

a:hover {
    color: var(--page-text);
}

code {
    padding: 0.18rem 0.42rem;
    border-radius: 0.55rem;
    background: rgba(var(--app-accent-rgb), 0.08);
    color: var(--page-text);
    font-family: "SFMono-Regular", Menlo, Consolas, monospace;
    font-size: 0.9em;
    overflow-wrap: anywhere;
}

.highlight,
.good-news,
.warning-box,
.info-box,
.contact {
    border-radius: var(--page-radius-lg);
    border: 1px solid var(--page-line);
    padding: 1rem 1.1rem;
    margin: 1.35rem 0;
    box-shadow: var(--page-shadow-soft);
}

.highlight {
    background: rgba(255, 255, 255, 0.52);
}

.good-news {
    background: rgba(39, 138, 102, 0.1);
    border-color: rgba(39, 138, 102, 0.18);
}

.warning-box {
    background: rgba(213, 139, 65, 0.12);
    border-color: rgba(213, 139, 65, 0.22);
}

.info-box,
.contact {
    background: rgba(var(--app-accent-rgb), 0.08);
    border-color: rgba(var(--app-accent-rgb), 0.14);
}

.highlight p:last-child,
.good-news p:last-child,
.warning-box p:last-child,
.info-box p:last-child,
.contact p:last-child {
    margin-bottom: 0;
}

.contact h3 {
    margin-top: 0;
}

.contact p {
    line-height: 1.9;
}

.table-scroll {
    overflow-x: auto;
    margin: 1.4rem 0;
    border-radius: var(--page-radius-lg);
    border: 1px solid var(--page-line);
    box-shadow: var(--page-shadow-soft);
    background: rgba(255, 255, 255, 0.48);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 0.82rem 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(34, 27, 18, 0.08);
    color: var(--page-muted);
    vertical-align: top;
    overflow-wrap: anywhere;
}

th {
    background: rgba(var(--app-accent-rgb), 0.08);
    color: var(--page-text);
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

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

a:focus-visible,
.back-link:focus-visible,
.page-action:focus-visible,
.toc-list a:focus-visible {
    outline: 3px solid rgba(var(--app-accent-rgb), 0.22);
    outline-offset: 3px;
}

.site-footer {
    width: min(calc(100% - 2rem), 1240px);
    margin: 0 auto;
    padding: 2rem 0 3rem;
    border-top: 1px solid rgba(34, 27, 18, 0.08);
    text-align: center;
    color: var(--page-soft);
    font-size: 0.84rem;
}

.site-footer a {
    color: var(--page-muted);
    text-decoration: none;
}

@media (max-width: 1080px) {
    .page-shell {
        grid-template-columns: 1fr;
    }

    .document-rail {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .page-header,
    .container,
    .site-footer {
        width: min(calc(100% - 1rem), 1240px);
    }

    .page-header {
        grid-template-columns: 1fr;
        padding: 0.95rem;
    }

    .document-rail {
        grid-template-columns: 1fr;
    }

    .page-header .app-icon,
    .page-summary {
        grid-column: auto;
        grid-row: auto;
    }

    .page-header .app-name {
        max-width: none;
        font-size: 1.4rem;
    }

    .document-topbar,
    .page-actions {
        flex-direction: column;
    }

    .back-link,
    .page-action {
        width: 100%;
    }

    .content {
        padding: 1.2rem;
        border-radius: 1.5rem;
    }

    .table-scroll {
        overflow: visible;
        border: 0;
        background: transparent;
        box-shadow: none;
        margin: 1.1rem 0;
    }

    table,
    thead,
    tbody,
    tr,
    th,
    td {
        display: block;
        width: 100%;
    }

    thead {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    tbody {
        display: grid;
        gap: 0.8rem;
    }

    tbody tr {
        border-radius: var(--page-radius-lg);
        border: 1px solid var(--page-line);
        background: rgba(255, 255, 255, 0.5);
        box-shadow: var(--page-shadow-soft);
        padding: 0.55rem;
    }

    table.table-has-inline-header tbody tr:first-child {
        display: none;
    }

    td {
        border-bottom: 0;
        display: grid;
        grid-template-columns: minmax(86px, 112px) 1fr;
        gap: 0.75rem;
        padding: 0.4rem 0.45rem;
    }

    td::before {
        content: attr(data-label);
        color: var(--page-soft);
        font-size: 0.72rem;
        font-weight: 700;
        letter-spacing: 0.1em;
        text-transform: uppercase;
    }

}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .back-link,
    .page-action,
    .toc-list a {
        transition: none;
    }
}