/* System fonts and local styles keep the reading experience self-contained. */
:root { color-scheme: light dark; --paper: #faf9f5; --ink: #202b28; --muted: #57635d; --accent: #176146; --line: #d9dfd6; }
* { box-sizing: border-box; }
html { scroll-padding-top: 1.5rem; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1.0625rem/1.85 system-ui, -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", sans-serif; overflow-wrap: anywhere; }
a { color: var(--accent); text-underline-offset: .22em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; border-radius: 2px; }
.skip { position: absolute; top: -10rem; left: 1rem; padding: .75rem; background: var(--paper); z-index: 2; }
.skip:focus { top: 1rem; }
.site-header { max-width: 76rem; margin: auto; padding: 1.5rem 2rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem 2rem; border-bottom: 1px solid var(--line); }
.brand { font-size: 1.35rem; font-weight: 750; text-decoration: none; white-space: nowrap; }
nav { display: flex; flex-wrap: wrap; gap: .25rem 1.2rem; }
nav a { display: flex; flex-direction: column; padding: .4rem 0; font-size: .9rem; line-height: 1.5; text-decoration: none; }
nav a span { color: var(--muted); font-size: .8rem; }
nav a[aria-current="page"] { text-decoration: underline; text-decoration-thickness: 2px; }
main { margin: auto; padding: 3rem 1.5rem 4rem; }
.document { max-width: 49rem; }
.eyebrow { color: var(--accent); font-size: .8rem; font-weight: 650; letter-spacing: .15em; }
h1, h2, h3 { line-height: 1.4; letter-spacing: -.025em; text-wrap: balance; }
h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); margin: .6rem 0 1.2rem; }
h2 { font-size: 1.5rem; margin: 2.5rem 0 1rem; }
h3 { font-size: 1.14rem; margin: 2rem 0 .75rem; }
p { margin: 0 0 1.15rem; }
li { padding-left: .3rem; margin-bottom: .85rem; }
ul, ol { padding-left: 1.45rem; }
strong { font-weight: 700; }
.document-heading { padding-bottom: 1.6rem; border-bottom: 1px solid var(--line); }
.language-links { font-size: .95rem; margin-bottom: 0; }
#english { border-top: 1px solid var(--line); margin-top: 4rem; padding-top: .5rem; }
.landing { max-width: 65rem; padding-top: clamp(3rem, 10vh, 7rem); }
.landing h1 { font-size: clamp(3rem, 10vw, 6rem); letter-spacing: -.055em; }
.intro { font-size: clamp(1.25rem, 3vw, 1.7rem); max-width: 24em; }
.contact { display: inline-block; padding: .6rem 0; }
.landing-english { border-top: 1px solid var(--line); margin-top: 4rem; padding-top: 1rem; max-width: 38rem; }
.landing-english h2 { margin-top: 1rem; }
.landing-portuguese { margin-top: 2.5rem; max-width: 38rem; color: var(--muted); }
.facts { max-width: 34em; margin: 0 0 1.5rem; padding-left: 1.2rem; }
.facts li { margin-bottom: .4rem; }
.status { color: var(--muted); margin-bottom: .5rem; }
.toc { display: flex; flex-wrap: wrap; gap: 0 3rem; margin: 1.5rem 0 0; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); font-size: .95rem; }
.toc ol { flex: 1 1 16rem; margin: 0; padding: 0; list-style: none; }
.toc li { margin-bottom: .35rem; }
footer { max-width: 76rem; margin: auto; padding: 1.5rem 2rem 2.5rem; border-top: 1px solid var(--line); font-size: .85rem; color: var(--muted); }
footer p { margin-bottom: .35rem; }
@media (max-width: 680px) { .site-header { align-items: flex-start; flex-direction: column; padding: 1rem 1.25rem; gap: .6rem; } nav { gap: .25rem 1rem; } main { padding: 2rem 1.25rem 3rem; } footer { padding: 1.25rem; } .document h2 { font-size: 1.3rem; } }
@media (prefers-color-scheme: dark) { :root { --paper: #151a18; --ink: #e9ece8; --muted: #a6b0a9; --accent: #8fd3b3; --line: #2f3835; } }
@media print { .site-header, .language-links, .skip, footer > a { display: none; } body { background: white; color: black; font-size: 11pt; } main { max-width: none; padding: 0; } a { color: inherit; } h2, h3 { break-after: avoid; } }