.guide-list {
    display: grid;
    gap: 1rem;
    margin: 2rem 0;
}
.guide-list > a {
    display: block;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.25rem;
    text-decoration: none;
}
.guide-list > a:hover {
    background: var(--soft);
}
.article .guide-list h2 {
    margin: 0 0 .5rem;
    font-size: 1.2rem;
}
.guide-list h2 span {
    float: right;
}
.guide-list p {
    margin: 0;
    color: var(--muted);
}
.guide-links {
    border-top: 1px solid var(--border);
    margin-top: 3rem;
    padding-top: 1.5rem;
    max-width: 780px;
}
.guide-links h2 {
    font-size: 1.1rem;
}
.guide-links a {
    display: inline-block;
    margin: .35rem 1.25rem .35rem 0;
}
:root {
    --ink:#193a3e;
    --text:#344b4e;
    --muted:#627476;
    --teal:#256f66;
    --border:#dfe8e5;
    --soft:#f4f8f6;
    --white:#fff;
    font-family:Inter,"Segoe UI",Arial,sans-serif;
    color:var(--text);
    background:var(--white);
    font-size:16px;
    line-height:1.65
}

* {
    box-sizing:border-box
}

body {
    margin:0
}

a {
    color:var(--teal);
    text-underline-offset:4px
}

a:hover {
    color:var(--ink)
}

a:focus-visible,summary:focus-visible {
    outline:3px solid #256f66;
    outline-offset:5px
}

h1,h2,h3 {
    color:var(--ink);
    line-height:1.2
}

h1 {
    font-size:clamp(2.2rem,4vw,3.6rem);
    letter-spacing:-.045em;
    margin:0 0 1.4rem;
    font-weight:650
}

h2 {
    font-size:1.65rem;
    letter-spacing:-.025em;
    margin:.3rem 0 1rem
}

h3 {
    font-size:1.12rem;
    margin:1.1rem 0 .6rem
}

p {
    margin:0 0 1.1rem
}

.skip-link {
    position:absolute;
    left:1rem;
    top:-6rem;
    background:white;
    padding:1rem;
    z-index:10
}

.skip-link:focus {
    top:1rem
}

.site-header {
    min-height:100px;
    border-bottom:1px solid var(--border);
    display:flex;
    align-items:center;
    gap:1.8rem;
    padding:1rem 3.5%;
    max-width:1600px;
    margin:auto
}

.brand {
    display:flex
}

.brand img {
    width:185px;
    height:auto
}

.header-label {
    border-left:1px solid var(--border);
    padding-left:1.8rem;
    font-size:1.05rem;
    color:var(--ink)
}

.header-link {
    margin-left:auto;
    text-decoration:none;
    font-size:.9rem;
    font-weight:600
}

.header-link span {
    margin-left:.7rem
}

.site-shell {
    display:grid;
    grid-template-columns:255px minmax(0,1fr);
    max-width:1440px;
    margin:auto;
    min-height:calc(100vh - 185px)
}

.sidebar {
    padding:2.8rem 1.5rem;
    border-right:1px solid var(--border)
}

.topic-menu summary {
    font-weight:650;
    color:var(--ink);
    list-style:none;
    cursor:pointer;
    padding:.35rem .65rem 1.3rem
}

.topic-menu summary::-webkit-details-marker {
    display:none
}

.topic-menu summary span {
    float:right
}

.topic-menu:not([open]) summary span {
    transform:rotate(-90deg)
}

.topic-menu nav a {
    display:block;
    text-decoration:none;
    padding:.6rem .75rem;
    border-radius:6px;
    font-size:.9rem;
    margin:.12rem 0;
    color:var(--text)
}

.topic-menu nav a:hover {
    background:var(--soft)
}

.topic-menu nav a[aria-current=page] {
    background:#e7f3ef;
    color:#205f57;
    font-weight:650;
    box-shadow:inset 3px 0 var(--teal)
}

.nav-label {
    font-size:.7rem;
    text-transform:uppercase;
    letter-spacing:.12em;
    font-weight:650;
    color:var(--muted);
    margin:1.6rem .75rem .6rem
}

.sidebar-note {
    border-top:1px solid var(--border);
    margin:2.5rem .7rem 0;
    padding-top:1.4rem;
    font-size:.8rem;
    color:var(--ink)
}

.sidebar-note p {
    color:var(--muted);
    margin:.5rem 0
}

.status-dot {
    display:inline-block;
    width:7px;
    height:7px;
    border-radius:50%;
    background:#2f8f83;
    margin-right:.45rem
}

main {
    padding:3.4rem clamp(1.5rem,4vw,4.5rem) 4rem;
    min-width:0
}

.hero {
    padding:.5rem 0 2.5rem;
    max-width:760px
}

.eyebrow {
    font-size:.72rem;
    font-weight:700;
    letter-spacing:.16em;
    color:var(--teal);
    margin-bottom:1.1rem
}

.hero h1 span {
    color:var(--teal)
}

.hero-intro {
    max-width:580px;
    font-size:1.1rem;
    color:var(--muted);
    margin-bottom:1.8rem
}

.button {
    display:inline-flex;
    align-items:center;
    gap:1.7rem;
    border-radius:6px;
    padding:.72rem 1.15rem;
    color:white;
    background:var(--teal);
    text-decoration:none;
    font-weight:600;
    font-size:.9rem
}

.button:hover {
    color:white;
    background:var(--ink)
}

.text-link {
    display:inline-block;
    font-size:.9rem;
    margin:.75rem 0 .75rem 1.4rem
}

.notice {
    border:1px solid #cee3da;
    border-left:3px solid #2f8f83;
    border-radius:6px;
    background:var(--soft);
    padding:1.15rem 1.4rem;
    margin:0 0 2.7rem;
    font-size:.9rem
}

.notice strong {
    color:var(--ink);
    font-weight:600
}

.notice p {
    margin:.3rem 0 0;
    color:var(--muted)
}

.section-heading {
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:1rem;
    margin-bottom:1rem
}

.section-heading .eyebrow {
    margin-bottom:.65rem
}

.quiet {
    font-size:.8rem;
    color:var(--muted);
    white-space:nowrap
}

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

.topic-card {
    padding:1.3rem;
    border:1px solid var(--border);
    border-radius:8px;
    text-decoration:none;
    transition:border-color .15s,background .15s
}

.topic-card:hover {
    background:var(--soft);
    border-color:#8fbeb0
}

.card-top {
    display:flex;
    justify-content:space-between;
    align-items:center
}

.topic-status {
    font-size:.7rem;
    letter-spacing:.03em;
    color:var(--muted);
    background:var(--soft);
    border-radius:4px;
    padding:.15rem .5rem
}

.card-arrow {
    font-size:1.15rem;
    color:var(--teal)
}

.topic-card p {
    font-size:.85rem;
    color:var(--muted);
    margin:0;
    line-height:1.6
}

.site-footer {
    border-top:1px solid var(--border);
    max-width:1440px;
    margin:auto;
    padding:1.5rem 2rem;
    display:flex;
    justify-content:space-between;
    gap:1rem;
    font-size:.75rem;
    color:var(--muted)
}

.breadcrumb {
    display:flex;
    flex-wrap:wrap;
    gap:.8rem;
    font-size:.85rem;
    color:var(--muted);
    margin-bottom:3rem
}

.article {
    max-width:780px
}

.article h1 {
    font-size:clamp(2rem,4vw,3rem)
}

.article h2 {
    margin-top:2.5rem
}

.article h3 {
    margin-top:2rem
}

.article .lead {
    font-size:1.15rem;
    color:var(--muted);
    margin-bottom:2.2rem
}

.article li {
    margin-bottom:.6rem
}

.article figure {
    margin:2rem 0
}

.article img {
    display:block;
    max-width:100%;
    height:auto;
    border:1px solid var(--border);
    border-radius:6px
}

.article figcaption {
    font-size:.85rem;
    color:var(--muted);
    margin-top:.65rem
}

.video {
    aspect-ratio:16/9;
    margin:2rem 0
}

.video iframe {
    width:100%;
    height:100%;
    border:0;
    border-radius:8px
}

.article pre {
    overflow-x:auto;
    background:var(--soft);
    padding:1rem
}

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

.article th,.article td {
    padding:.65rem;
    text-align:left;
    border-bottom:1px solid var(--border)
}

@media(min-width:1500px) {
    .site-header {
        padding-left:80px;
        padding-right:80px
    }
}

@media(max-width:1100px) {
    .topic-grid {
        grid-template-columns:repeat(2,minmax(0,1fr))
    }
    .site-shell {
        grid-template-columns:230px minmax(0,1fr)
    }
    main {
        padding:2.5rem 2rem
    }
    .sidebar {
        padding:2.5rem 1rem
    }
}

@media(max-width:700px) {
    .site-header {
        padding:1rem 1.2rem;
        min-height:80px;
        gap:1rem
    }
    .brand img {
        width:140px
    }
    .header-label {
        padding-left:1rem;
        font-size:.9rem
    }
    .header-link {
        display:none
    }
    .site-shell {
        display:block
    }
    .sidebar {
        padding:.75rem 1.2rem;
        border-right:0;
        border-bottom:1px solid var(--border);
        background:var(--soft)
    }
    .topic-menu summary {
        padding:.5rem
    }
    .topic-menu nav {
        display:grid;
        grid-template-columns:repeat(2,minmax(0,1fr));
        gap:.2rem
    }
    .nav-label {
        grid-column:1/-1;
        margin:.8rem .75rem .2rem
    }
    .sidebar-note {
        display:none
    }
    main {
        padding:2rem 1.2rem 3rem
    }
    .hero {
        padding-top:.5rem
    }
    .topic-grid {
        grid-template-columns:1fr
    }
    .section-heading .quiet {
        display:none
    }
    .text-link {
        margin-left:1rem
    }
    .site-footer {
        flex-direction:column;
        gap:.25rem;
        padding:1.2rem
    }
    .breadcrumb {
        margin-bottom:2rem
    }
}

@media(prefers-reduced-motion:reduce) {
    * {
        transition:none!important
    }
}

@media print {
    .site-header,.sidebar,.site-footer,.skip-link,.breadcrumb {
        display:none
    }
    .site-shell {
        display:block
    }
    main {
        padding:0
    }
    .article {
        max-width:none
    }
    a {
        color:inherit
    }
    .notice,.topic-card {
        break-inside:avoid
    }
    .video {
        display:none
    }
}