.top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: 72px;
    border-bottom: 1px solid var(--line);
}
.tag {
    color: var(--muted);
    font-size: 0.8rem;
    margin-left: 0.5rem;
}
.top-links {
    display: flex;
    gap: 1.4rem;
    font: 0.74rem/1.6 var(--mono);
}
.top-links a {
    color: var(--ink);
}
.layout {
    display: grid;
    grid-template-columns: 215px minmax(0, 1fr);
    gap: 3.5rem;
    align-items: start;
    padding-block: 2.5rem 5rem;
}
.rail {
    position: sticky;
    top: 1.5rem;
    max-height: calc(100dvh - 3rem);
    overflow-y: auto;
    padding-right: 1rem;
    scrollbar-width: thin;
}
.rail h2 {
    font: 600 0.7rem/1.5 var(--mono);
    color: var(--muted);
    margin: 0 0 1rem 0.65rem;
}
.module-list {
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.15rem;
}
.module-list a {
    display: block;
    color: var(--muted);
    border-left: 2px solid transparent;
    padding: 0.4rem 0.6rem;
    font: 0.73rem/1.4 var(--mono);
}
.module-list a:hover {
    color: var(--ink);
    background: var(--panel);
    text-decoration: none;
}
.module-list a[aria-current] {
    color: var(--technical);
    border-color: var(--technical);
    background: var(--panel);
    font-weight: 600;
}
.rail-reference {
    display: grid;
    gap: 0.8rem;
    border-top: 1px solid var(--line);
    margin: 1.25rem 0 0 0.65rem;
    padding-top: 1.25rem;
}
.rail-reference a {
    font: 0.68rem/1.5 var(--mono);
}
.article {
    min-width: 0;
    max-width: 790px;
}
.article h1 {
    font-size: 2.5rem;
    font-weight: 650;
    line-height: 1.2;
    margin-bottom: 1rem;
    scroll-margin-top: 1.5rem;
}
.article > h1 {
    border-top: 1px solid var(--line);
    margin-top: 4rem;
    padding-top: 2.5rem;
}
.article > h1::before {
    content: "#";
    color: var(--technical);
    font: 400 1.35rem var(--mono);
    margin-right: 0.75rem;
}
.handbook-label {
    color: var(--technical);
    font: 0.7rem/1.5 var(--mono);
    margin-bottom: 1rem;
}
.lede {
    color: var(--muted);
    font-size: 1.07rem;
    line-height: 1.75;
    max-width: 64ch;
    margin-bottom: 1.5rem;
}
.intro {
    margin-top: 0;
    padding-bottom: 0.25rem;
}
.intro-references {
    display: flex;
    gap: 0.75rem 1.5rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
    font: 0.73rem/1.6 var(--mono);
}
section {
    margin-top: 2.4rem;
}
section h2 {
    font-size: 1.25rem;
    line-height: 1.4;
    font-weight: 650;
    margin-bottom: 0.8rem;
}
section h3 {
    font-size: 1rem;
    font-weight: 650;
    margin: 1.5rem 0 0.6rem;
}
section p,
section li {
    max-width: 68ch;
}
p + p {
    margin-top: 0.9rem;
}
code,
.path {
    color: var(--technical);
}
.feel {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-block: 1.5rem;
    border-block: 1px solid var(--line);
    padding-block: 1rem;
}
.feel div {
    padding: 0.4rem 1.2rem;
    border-left: 1px solid var(--line);
}
.feel div:first-child {
    border-left: 0;
    padding-left: 0;
}
.feel b {
    display: block;
    font: 600 1.5rem/1.2 var(--mono);
    color: var(--technical);
}
.feel span {
    display: block;
    margin-top: 0.4rem;
    font-size: 0.78rem;
    color: var(--muted);
}
.keys {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem 1.2rem;
    margin-block: 1.2rem;
}
.key {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem;
    font-size: 0.83rem;
    color: var(--muted);
}
kbd {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border: 1px solid var(--line);
    border-bottom-width: 2px;
    border-radius: 3px;
    background: var(--panel);
    color: var(--ink);
    font-size: 0.75rem;
    text-align: center;
}
.row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
    align-items: start;
}
.r6 {
    width: 100px;
    display: grid;
    justify-items: center;
    gap: 3px;
    padding-top: 1rem;
}
.r6-head {
    width: 28px;
    height: 28px;
    background: #e8c4a0;
    border-radius: 2px;
}
.r6-mid {
    display: flex;
    align-items: stretch;
    gap: 3px;
}
.r6-arm {
    width: 14px;
    height: 44px;
    background: #e8c4a0;
    border-radius: 2px;
}
.r6-torso {
    width: 32px;
    height: 36px;
    background: #c45c2a;
    border-radius: 2px;
    align-self: start;
}
.r6-legs {
    display: flex;
    gap: 4px;
}
.r6-leg {
    width: 14px;
    height: 32px;
    background: #2f4f7a;
    border-radius: 2px;
}
.ask,
.dont {
    list-style: none;
    padding: 0;
    margin-top: 0.7rem;
}
.ask li,
.dont li {
    position: relative;
    padding-left: 1.3rem;
    margin-top: 0.6rem;
}
.ask li::before,
.dont li::before {
    position: absolute;
    left: 0;
    font: 600 0.8rem/2 var(--mono);
}
.ask li::before {
    content: "+";
    color: var(--technical);
}
.dont li::before {
    content: "x";
    color: var(--accent);
}
.prompts {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}
.note {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
    border-left: 3px solid var(--technical);
    background: var(--panel);
    font-size: 0.94rem;
}
.note strong {
    color: var(--technical);
}
.foot {
    margin-top: 3rem;
}
@media (max-width: 1000px) {
    .layout {
        grid-template-columns: 185px minmax(0, 1fr);
        gap: 2rem;
    }
    .tag {
        display: none;
    }
}
@media (max-width: 767px) {
    .top {
        gap: 0.75rem;
    }
    .top-links {
        gap: 1rem;
        font-size: 0.67rem;
    }
    .layout {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding-top: 1.5rem;
    }
    .rail {
        position: static;
        max-height: none;
        overflow: visible;
        padding: 0 0 1.5rem;
        border-bottom: 1px solid var(--line);
    }
    .rail h2 {
        margin-left: 0;
        margin-bottom: 0.5rem;
    }
    .module-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 0.25rem;
    }
    .module-list a {
        font-size: 0.67rem;
        padding: 0.45rem 0.4rem;
    }
    .rail-reference {
        display: none;
    }
    .article h1 {
        font-size: 2rem;
    }
    .article > h1 {
        margin-top: 3rem;
        padding-top: 2rem;
    }
    .row {
        grid-template-columns: minmax(0, 1fr);
        gap: 1rem;
    }
    .r6 {
        justify-self: start;
    }
}
@media (max-width: 400px) {
    .module-list {
        grid-template-columns: 1fr 1fr;
    }
    .feel div {
        padding-inline: 0.75rem;
    }
    .top-links {
        gap: 0.65rem;
        font-size: 0.62rem;
    }
}