/* worksonfirsttry.com — design system: design-system/works-on-first-try-site (MASTER.md + ADAPTATION.md) */
@font-face { font-family: 'Fira Sans'; font-weight: 400; font-style: normal; font-display: swap; src: url('/fonts/fira-sans-latin-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Fira Sans'; font-weight: 600; font-style: normal; font-display: swap; src: url('/fonts/fira-sans-latin-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'Fira Sans'; font-weight: 700; font-style: normal; font-display: swap; src: url('/fonts/fira-sans-latin-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'Fira Code'; font-weight: 400; font-style: normal; font-display: swap; src: url('/fonts/fira-code-latin-400-normal.woff2') format('woff2'); }

:root {
  --bg: #ffffff;
  --fg: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --surface: #f1f5f9;
  --link: #15803d;
  --accent: #22c55e;
  --on-accent: #0f172a;
  --ok: #15803d;
  --warn: #b45309;
  --code-bg: #0f172a;
  --code-fg: #e2e8f0;
  --code-muted: #94a3b8;
  --radius: 12px;
  --sans: 'Fira Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'Fira Code', ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #020617;
    --fg: #f8fafc;
    --muted: #94a3b8;
    --border: #1e293b;
    --surface: #0e1223;
    --link: #4ade80;
    --ok: #4ade80;
    --warn: #fbbf24;
    --code-bg: #0b1120;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.7 var(--sans); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; text-wrap: balance; }
h1 { font-size: clamp(2rem, 5vw, 2.75rem); margin: 0.5rem 0 1rem; }
h2 { font-size: 1.5rem; margin: 2.5rem 0 0.75rem; scroll-margin-top: 1rem; }
p { margin: 0 0 1rem; }
code { font-family: var(--mono); font-size: 0.9em; background: var(--surface); padding: 0.1em 0.35em; border-radius: 4px; }
.muted { color: var(--muted); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--fg); color: var(--bg); padding: 0.5rem 1rem; z-index: 10; }
.skip:focus { left: 1rem; top: 1rem; }

.wrap { max-width: 72rem; margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .wrap { padding: 0 32px; } }

/* Header / footer */
.site-header { border-bottom: 1px solid var(--border); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 700; text-decoration: none; }
.site-header nav { display: flex; gap: 0.25rem; }
.site-header nav a { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 12px; border-radius: 8px; color: var(--fg); text-decoration: none; font-weight: 600; }
.site-header nav a:hover { background: var(--surface); }
@media (max-width: 420px) { .brand span, .nav-yt span { display: none; } }
.site-footer { margin-top: 4rem; border-top: 1px solid var(--border); padding: 2rem 0 3rem; color: var(--muted); font-size: 0.875rem; }
.site-footer a { color: var(--muted); }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; }
.footer-links a { min-height: 32px; display: inline-flex; align-items: center; }
.api-note { max-width: 46rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 0 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid transparent; transition: background-color 0.15s, border-color 0.15s; cursor: pointer; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: #16a34a; }
.btn-yt { background: var(--bg); color: var(--fg); border-color: var(--border); }
.btn-yt:hover { border-color: var(--muted); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.5rem 0; }

/* Home */
.hero { padding-top: 3.5rem; padding-bottom: 1rem; }
.hero h1 { max-width: 20ch; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 42rem; }
.how-list { list-style: none; padding: 0; margin: 1.5rem 0 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.how-list li { border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; display: grid; gap: 0.25rem; }
.how-list span { color: var(--muted); font-size: 0.95rem; }
.page-head { padding-top: 3rem; }

/* Guide cards */
.cards { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); }
.card a { display: flex; flex-direction: column; height: 100%; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; color: var(--fg); text-decoration: none; transition: border-color 0.15s; }
.card a:hover { border-color: var(--link); }
.card img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; background: var(--code-bg); }
.card-body { display: grid; gap: 0.5rem; padding: 1rem 1.25rem 1.25rem; }
.card-title { font-weight: 700; font-size: 1.1rem; line-height: 1.35; }
.card-text { color: var(--muted); font-size: 0.95rem; line-height: 1.55; }
.card-meta { display: flex; flex-wrap: wrap; gap: 0.75rem; color: var(--muted); font-size: 0.85rem; }
.tested { display: inline-flex; align-items: center; gap: 6px; color: var(--ok); font-weight: 600; }

/* Guide page */
.guide { max-width: 46rem; padding-top: 2rem; }
.crumbs { display: flex; gap: 0.5rem; font-size: 0.9rem; color: var(--muted); }
.crumbs a { color: var(--muted); }
.meta { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; color: var(--muted); font-size: 0.9rem; }
.video { position: relative; display: block; margin: 1.5rem 0; border-radius: var(--radius); overflow: hidden; background: var(--code-bg); color: #fff; text-decoration: none; }
.video img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.video-label { position: absolute; left: 12px; bottom: 12px; display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 8px; background: rgba(15, 23, 42, 0.85); font-weight: 600; font-size: 0.9rem; }
.video:hover .video-label { background: #0f172a; }
.takeaways, .method, .tip { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 1.5rem 0; background: var(--surface); }
.takeaways h2, .method h2 { font-size: 1.05rem; margin: 0 0 0.5rem; }
.takeaways ul { margin: 0; padding-left: 1.2rem; }
.tip { border-left: 4px solid var(--accent); }
.tip strong { display: block; margin-bottom: 0.25rem; }
.tip p { margin: 0; }
.toc ol { padding-left: 1.4rem; margin: 0; }
.toc li { margin: 0.25rem 0; }
.step { margin-top: 1rem; }

/* Commands & code: always dark */
.term { margin: 1.25rem 0 0.75rem; border-radius: var(--radius); overflow: hidden; background: var(--code-bg); color: var(--code-fg); border: 1px solid #1e293b; }
.term-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; padding: 6px 8px 6px 14px; border-bottom: 1px solid #1e293b; font-size: 0.8rem; color: var(--code-muted); }
.term-bar > span:first-child { font-family: var(--mono); }
.status { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }
.status.ok { color: #4ade80; }
.status.warn { color: #fbbf24; }
.copy { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 12px; border-radius: 8px; border: 1px solid #334155; background: transparent; color: var(--code-fg); font: 600 0.8rem var(--sans); cursor: pointer; transition: border-color 0.15s, color 0.15s; }
.copy:hover { border-color: #94a3b8; }
.copy[data-state='done'] { color: #4ade80; border-color: #4ade80; }
.term pre, .output pre { margin: 0; padding: 14px 16px; overflow-x: auto; font: 0.9rem/1.6 var(--mono); }
.term code, .output code { background: none; padding: 0; font-size: inherit; color: inherit; }
.term .p { color: #4ade80; user-select: none; }
.term .c { color: var(--code-muted); }
.output { margin: 0 0 1rem; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.output summary { cursor: pointer; padding: 10px 14px; min-height: 44px; display: flex; align-items: center; font-size: 0.9rem; font-weight: 600; color: var(--muted); }
.output pre { background: var(--code-bg); color: var(--code-fg); max-height: 22rem; }

.faq details { border-bottom: 1px solid var(--border); padding: 0.25rem 0; }
.faq summary { cursor: pointer; font-weight: 600; min-height: 44px; display: flex; align-items: center; }
.faq details p { margin: 0.25rem 0 1rem; }
.sources { padding-left: 1.2rem; overflow-wrap: anywhere; }

/* Legal pages share the header/footer */
.legal { max-width: 46rem; padding-top: 2rem; }
.legal .updated { color: var(--muted); }