:root {
  color-scheme: dark;
  --page: #0b1210;
  --panel: #14201c;
  --panel-soft: #20332c;
  --text: #f2f4ed;
  --muted: #aebdb4;
  --line: #34483f;
  --accent: #e6a84b;
  --accent-text: #17211d;
}

:root[data-theme="light"] {
  color-scheme: light;
  --page: #e9efeb;
  --panel: #f5f8f5;
  --panel-soft: #cfddd5;
  --text: #13221a;
  --muted: #4f6258;
  --line: #b7c9bf;
  --accent: #7e581b;
  --accent-text: #fffdf7;
}

body { background: var(--page); color: var(--text); }
.hero { display: block; position: relative; }
.hero-copy { position: relative; z-index: 2; max-width: 900px; }
.portrait-wrap { position: absolute; z-index: 1; right: 0; top: 7.5rem; transform: none; min-width: 0; }
.portrait { width: min(100%, 280px); }
.wordmark span, .eyebrow, .badge, .repo-grid b, .eco-arrow { color: var(--accent); }
.lede, .section-head p:not(.eyebrow), .layer-grid p, .timeline p,
.profile p, .article-lede, .article-steps p, .repo-grid small { color: var(--muted); }
.topbar nav a, .wordmark { color: var(--text); }
.language, .theme-toggle, .nav-toggle { border: 1px solid var(--line); color: var(--text); background: transparent; }
.header-controls { display: flex; align-items: center; gap: .65rem; }
.theme-toggle, .contrast-toggle { display: none; border-radius: 50%; width: 44px; height: 44px; place-items: center; font-size: 1.05rem; cursor: pointer; }
.js .theme-toggle, .js .contrast-toggle { display: grid; }
.theme-toggle:hover, .contrast-toggle:hover, .language:hover { border-color: var(--accent); }
.theme-toggle:focus-visible, .contrast-toggle:focus-visible, .language:focus-visible, .nav-toggle:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.button { border-color: var(--text); color: var(--text); }
.button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.portrait-halo { background: var(--panel-soft); }
.projects, .profile, .timeline, .timeline article, .article,
.article-steps article, .profile li, .layer-grid, .layer-grid article { border-color: var(--line); }
.feature, .ecosystem { background: var(--panel); color: var(--text); }

.feature p { color: var(--muted); }

.feature .text-link { color: var(--text); }
.compute-feature { border-top: 1px solid var(--line); background: var(--panel-soft); }

.signal span { border-color: var(--line); color: var(--text); }
.deeper { background: var(--panel-soft); }
.deeper a { border-color: var(--line); }
.repo-grid { background: var(--line); border-color: var(--line); }
.repo-grid a { background: var(--page); }
.contact { background: var(--accent); color: var(--accent-text); display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(2rem, 7vw, 7rem); }
.contact .eyebrow, .contact .light-link { color: var(--accent-text); }
.contact-intro > p:not(.eyebrow) { font-size: 1.2rem; }
.contact-form { display: grid; gap: .45rem; max-width: 680px; }
.contact-form label { font-weight: 700; margin-top: .55rem; }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid color-mix(in srgb, var(--accent-text) 55%, transparent); background: var(--page); color: var(--text); padding: .8rem .9rem; font: inherit; border-radius: 0; }
.contact-form input:focus, .contact-form textarea:focus { outline: 3px solid var(--accent-text); outline-offset: 2px; }
.contact-form .button { width: max-content; margin-top: .75rem; cursor: pointer; }
.contact-form .button.light { background: var(--page); border-color: var(--page); color: var(--text); }
.contact-honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-privacy { font-size: .85rem !important; margin: .75rem 0 0; }
.form-status { padding: .7rem .9rem; border: 1px solid currentColor; font-weight: 700; }

:root[data-theme="dark"][data-contrast="high"] {
  --page: #000;
  --panel: #000;
  --panel-soft: #171717;
  --text: #fff;
  --muted: #fff;
  --line: #fff;
  --accent: #ffdf00;
  --accent-text: #000;
}
:root[data-theme="light"][data-contrast="high"] {
  --page: #fff;
  --panel: #fff;
  --panel-soft: #e8e8e8;
  --text: #000;
  --muted: #000;
  --line: #000;
  --accent: #004b87;
  --accent-text: #fff;
}
:root[data-contrast="high"] a { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; }
:root[data-contrast="high"] .contact { background: var(--panel); color: var(--text); border-block: 2px solid var(--text); }
:root[data-contrast="high"] .contact .eyebrow, :root[data-contrast="high"] .contact .light-link { color: var(--accent); }
:root[data-contrast="high"] .contact-form input, :root[data-contrast="high"] .contact-form textarea { background: var(--page); color: var(--text); border: 2px solid var(--text); }
:root[data-contrast="high"] .contact-form .button.light { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }

.audience-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.audience-grid article { background: var(--page); padding: clamp(1.4rem, 3vw, 2.4rem); }
.audience-grid h3 { margin: .35rem 0 .7rem; }
.audience-grid p { color: var(--muted); }
.technical-path { border-top: 1px solid var(--line); }
.technical-path > li { display: grid; grid-template-columns: minmax(140px, .45fr) 1.55fr; gap: 1.5rem; padding: 1.3rem 0; border-bottom: 1px solid var(--line); }
.technical-path code { color: var(--accent); overflow-wrap: anywhere; }
.technical-path p { margin: 0; color: var(--muted); }
.technical-links { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; margin-top: 2rem; }
.technical-links a { font-weight: 800; text-underline-offset: 5px; }
.track-title { margin: 2.5rem 0 1rem; font-size: 1.15rem; }
.track-title:first-of-type { margin-top: 0; }
.legal-page { width: min(820px, calc(100% - 40px)); margin: auto; padding: 5rem 0 8rem; }
.legal-page > header { margin-bottom: 4rem; }
.legal-page h1 { font-size: clamp(3rem, 7vw, 6rem); line-height: 1; letter-spacing: -.055em; margin: 1rem 0; }
.legal-page section { border-top: 1px solid var(--line); padding: 1.5rem 0; }
.legal-page section h2 { margin-top: 0; }
.donation-page { width: min(1000px, calc(100% - 40px)); margin: auto; padding: 5rem 0 8rem; }
.donation-page > header { max-width: 820px; margin-bottom: 4rem; }
.donation-page h1 { font-size: clamp(2.75rem, 5vw, 4.8rem); line-height: 1; letter-spacing: -.055em; margin: 1rem 0; }
.donation-campaign { display: grid; grid-template-columns: 1.1fr .9fr; align-items: stretch; background: var(--panel); border: 1px solid var(--line); margin-bottom: 5rem; }
.donation-campaign figure { margin: 0; min-height: 100%; }
.donation-campaign img { width: 100%; height: 100%; object-fit: cover; }
.donation-campaign > div { padding: clamp(1.6rem, 4vw, 3.5rem); align-self: center; }
.donation-campaign h2 { margin: .65rem 0 1rem; font-size: clamp(1.8rem, 3.4vw, 3.1rem); line-height: 1.08; letter-spacing: -.04em; }
.donation-campaign p:not(.eyebrow) { color: var(--muted); }
.donation-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 7vw, 6rem); border-top: 1px solid var(--line); padding-top: 2rem; }
.bank-details { margin: 1.5rem 0; }
.bank-details > div { display: grid; grid-template-columns: 150px 1fr; gap: 1rem; padding: .75rem 0; border-bottom: 1px solid var(--line); }
.bank-details dt { color: var(--muted); }
.bank-details dd { margin: 0; font-weight: 800; overflow-wrap: anywhere; }
.bank-qr { width: 320px; max-width: 100%; margin: 0 auto; }
.bank-qr img { width: 100%; height: auto; image-rendering: pixelated; background: #fff; padding: 1rem; }
.bank-qr figcaption { color: var(--muted); margin-top: .75rem; }

@media (prefers-contrast: more) {
  :root:not([data-contrast="normal"]) { --muted: var(--text); --line: var(--text); }
  a { text-decoration-thickness: 2px; text-underline-offset: 4px; }
}

@media (forced-colors: active) {
  .button, .language, .theme-toggle, .contrast-toggle, .nav-toggle, .contact-form input, .contact-form textarea { forced-color-adjust: auto; border: 2px solid ButtonText; }
  .contact-honeypot { display: none; }
}

@media (max-width: 850px) {
  .topbar { gap: .75rem; height: auto; min-height: 70px; flex-wrap: wrap; }
  .topbar .header-controls { margin-left: auto; }
  .nav-toggle { display: none; }
  .topbar nav { display: flex; position: static; width: 100%; order: 3; padding: 0 0 1rem; flex-direction: row; flex-wrap: wrap; box-shadow: none; background: transparent; }
  .js .nav-toggle { display: block; }
  .js .topbar:not(.project-topbar) nav { display: none; position: absolute; width: auto; order: initial; padding: 1.5rem; flex-direction: column; background: var(--panel-soft); right: 0; top: 64px; box-shadow: 0 10px 30px #0004; }
  .js .topbar:not(.project-topbar) nav.open { display: flex; }
  .project-topbar nav { display: flex; width: auto; order: initial; padding: 0; }
  .contact { grid-template-columns: 1fr; }
  .hero { display: grid; grid-template-columns: 1fr; }
  .hero-copy { position: static; z-index: auto; }
  .portrait-wrap { position: relative; z-index: auto; inset: auto; transform: none; clear: both; margin-top: 4rem; }
  .portrait { width: min(75vw, 280px); }
  .audience-grid { grid-template-columns: 1fr; }
  .technical-path > li { grid-template-columns: 1fr; gap: .35rem; }
  .donation-campaign, .donation-layout { grid-template-columns: 1fr; }
  .donation-campaign figure { aspect-ratio: 16 / 9; }
}