/* Practical guides share the public site's brand tokens. No script required. */
* { box-sizing: border-box; }
html { color-scheme: dark; scroll-padding-top: 1rem; }
body { margin: 0; background: var(--brand-dark-bg); color: var(--brand-dark-text); font: 1rem/1.75 system-ui, sans-serif; }
a { color: var(--brand-bright); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--brand-bright); outline-offset: 5px; }
.guide-shell { width: min(100% - 2rem, 72rem); margin-inline: auto; }
.guide-header { padding-block: 1.25rem; border-bottom: 1px solid var(--brand-dark-border); display: flex; gap: 1rem 2rem; align-items: center; flex-wrap: wrap; }
.guide-brand { font-size: 1.3rem; font-weight: 750; text-decoration: none; color: var(--brand-dark-text); }
.guide-header nav { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; }
.guide-article { max-width: 52rem; margin: 3rem auto 4rem; }
.guide-breadcrumb { font-size: .875rem; color: #b5bbc4; }
.guide-eyebrow { margin-top: 2rem; color: var(--brand-bright); font-size: .875rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: .75rem 0 1.5rem; font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.12; letter-spacing: -.035em; }
h2 { margin-top: 2.75rem; font-size: clamp(1.4rem, 3vw, 1.85rem); line-height: 1.3; letter-spacing: -.02em; }
h3 { font-size: 1.1rem; }
p, li, dd { color: #c9cdd4; }
.guide-lead { font-size: 1.2rem; color: var(--brand-dark-text); }
.guide-meta { font-size: .875rem; color: #b5bbc4; }
.guide-toc, .guide-callout, .guide-next { margin-block: 2rem; padding: 1.5rem; border: 1px solid var(--brand-dark-border); border-radius: 1rem; background: var(--brand-dark-surface); }
.guide-toc h2, .guide-next h2 { margin-top: 0; }
li + li { margin-top: .65rem; }
ul, ol { padding-left: 1.4rem; }
.guide-toc ul { margin-bottom: 0; }
.guide-callout { border-left: 3px solid var(--brand-bright); }
.guide-callout p:first-child { margin-top: 0; }
.guide-callout p:last-child { margin-bottom: 0; }
dt { margin-top: 1rem; font-weight: 700; }
dd { margin: .25rem 0 1rem; }
.guide-button { display: inline-block; max-width: 100%; padding: .7rem 1.1rem; border-radius: .6rem; color: #082f2a; background: var(--brand-bright); font-weight: 750; text-decoration: none; }
.guide-next .guide-button { margin-top: .5rem; }
.guide-footer { border-top: 1px solid var(--brand-dark-border); padding-block: 2rem 3rem; }
.guide-footer nav { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; }
.guide-languages { margin-top: 1.5rem; }
.guide-languages summary { cursor: pointer; padding-block: .5rem; }
.guide-languages nav { margin-top: .75rem; }
.guide-languages a { padding: .4rem .6rem; border: 1px solid var(--brand-dark-border); border-radius: .4rem; }
.guide-languages a[lang="th"] { font-family: 'Lynsee Noto Sans Thai', sans-serif; }
.guide-skip { position: absolute; top: -10rem; left: 1rem; z-index: 2; padding: .6rem; background: var(--brand-dark-surface); }
.guide-skip:focus { top: 1rem; }
@media (max-width: 480px) { .guide-article { margin-top: 2rem; } .guide-toc, .guide-callout, .guide-next { padding: 1rem; } }