/* Shared styles for project articles. Tokens mirror the home page. */
:root {
  --bg: #111111; --bg-2: #181818; --line: #2c2c2c;
  --text: #f2f0ea; --muted: #a3a09a;
  --accent: #e8ff5a; --accent-text: #e8ff5a; --on-accent: #111111;
  --warn: #ff6b4a;
  --glow: rgba(232, 255, 90, 0.10);
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f2ec; --bg-2: #ebe8df; --line: #d6d2c6;
    --text: #141414; --muted: #5c5950;
    --accent: #d9f23a; --accent-text: #4a5a00; --warn: #c93a17;
    --glow: rgba(160, 190, 0, 0.14);
    color-scheme: light;
  }
}
:root[data-theme="light"] {
  --bg: #f4f2ec; --bg-2: #ebe8df; --line: #d6d2c6;
  --text: #141414; --muted: #5c5950;
  --accent: #d9f23a; --accent-text: #4a5a00; --warn: #c93a17;
  --glow: rgba(160, 190, 0, 0.14);
  color-scheme: light;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  background: var(--bg); color: var(--text);
  font-family: 'Space Grotesk', system-ui, sans-serif;
  line-height: 1.55; -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }
.wrap { max-width: 1120px; margin: 0 auto; padding-inline: 20px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--on-accent); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 3px; border-radius: 4px; }

/* Nav (same as home) */
nav {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; justify-content: space-between; align-items: center; height: 60px; gap: 12px; }
.brand { font-weight: 700; text-decoration: none; font-size: 1.05rem; letter-spacing: -0.02em; }
.brand b { color: var(--accent-text); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.back { text-decoration: none; color: var(--muted); font: 0.78rem 'JetBrains Mono', monospace; text-transform: uppercase; letter-spacing: .04em; margin-right: 6px; }
.back:hover { color: var(--text); }
.ctrl {
  height: 34px; min-width: 34px; padding: 0 10px;
  border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--text);
  font: 600 0.75rem 'JetBrains Mono', monospace; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
}
.ctrl:hover { border-color: var(--text); }
.lang span { color: var(--muted); }
.lang span.on { color: var(--accent-text); }
.progress { position: absolute; left: 0; bottom: -1px; height: 2px; width: 0; background: var(--accent); }

/* Article header */
.a-head { padding-block: 64px 28px; }
.kicker { color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; }
.kicker b { color: var(--accent-text); font-weight: 600; }
.a-head h1 {
  font-size: clamp(2.4rem, 7vw, 5rem); line-height: 0.95; letter-spacing: -0.045em;
  font-weight: 700; margin: 18px 0 22px; max-width: 15ch;
}
.a-head h1 .dot { color: var(--accent-text); }
.dek { font-size: clamp(1.1rem, 2.4vw, 1.35rem); color: var(--muted); max-width: 36em; }
.byline { display: flex; align-items: center; gap: 14px; margin-top: 28px; flex-wrap: wrap; font-size: .8rem; color: var(--muted); }
.byline img, .byline .av { width: 36px; height: 36px; border-radius: 50%; border: 1.5px solid var(--accent); object-fit: cover; display: grid; place-items: center; font-weight: 700; color: var(--text); }
.byline strong { color: var(--text); font-weight: 600; }
.byline .sep { opacity: .5; }

.cover { margin: 28px 0 0; border: 1px solid var(--line); background: var(--bg); }
.cover svg, figure svg { display: block; width: 100%; height: auto; }

/* Reading column */
.article { max-width: 700px; margin: 0 auto; padding: 56px 20px 40px; }
.article p, .article li {
  font-family: 'Newsreader', Georgia, serif; font-size: 1.24rem; line-height: 1.7;
  font-optical-sizing: auto;
}
.article p + p { margin-top: 1.1em; }
.article p.lead::first-letter {
  float: left; font-family: 'Space Grotesk', sans-serif; font-weight: 700;
  font-size: 4.2em; line-height: .82; margin: .06em .1em 0 0; color: var(--accent-text);
}
.article h2 {
  font-size: clamp(1.6rem, 4vw, 2.1rem); letter-spacing: -0.03em; line-height: 1.1;
  margin: 2.2em 0 .7em; display: flex; gap: 14px; align-items: baseline;
}
.article h2 .n { font: 600 .8rem 'JetBrains Mono', monospace; color: var(--accent-text); letter-spacing: 0; }
.article ul { margin: 1em 0 0 1.1em; }
.article li + li { margin-top: .5em; }
.article li::marker { color: var(--accent-text); }
.article code {
  font-family: 'JetBrains Mono', monospace; font-size: .82em;
  padding: .1em .35em; border: 1px solid var(--line); border-radius: 4px; background: var(--bg-2);
}
.article strong { font-weight: 600; }

.pull {
  margin: 2em 0; padding: 0 0 0 22px; border-left: 3px solid var(--accent);
  font: 700 clamp(1.4rem, 3.6vw, 1.9rem)/1.2 'Space Grotesk', sans-serif; letter-spacing: -.02em;
}

/* Figures break out of the column */
figure.wide { margin: 2.2em -120px; }
figure.full { margin: 2.2em 0; }
@media (max-width: 960px) { figure.wide { margin-inline: 0; } }
figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }
figure .frame { border: 1px solid var(--line); background: var(--bg); }
figcaption { font: .78rem/1.5 'JetBrains Mono', monospace; color: var(--muted); margin-top: 10px; }
.theme-light-only { display: none; }
:root[data-theme="light"] .theme-light-only { display: block; }
:root[data-theme="light"] .theme-dark-only { display: none; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .theme-light-only { display: block; }
  :root:not([data-theme="dark"]) .theme-dark-only { display: none; }
}

/* Swatch example */
.swatches { display: grid; grid-template-columns: 1fr auto 1fr; gap: 14px; align-items: center; margin: 1.6em 0; }
.sw { border: 1px solid var(--line); padding: 16px; background: #fff; color: #111; }
.sw b { display: block; font: 700 1.6rem 'Space Grotesk', sans-serif; }
.sw span { font: .75rem 'JetBrains Mono', monospace; color: #555; }
.sw-arrow { font: 600 .8rem 'JetBrains Mono', monospace; color: var(--accent-text); text-align: center; }
@media (max-width: 520px) { .swatches { grid-template-columns: 1fr; } .sw-arrow { transform: rotate(90deg); } }

/* Facts table */
.facts { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); margin: 2em 0; }
.facts div { padding: 18px; }
.facts div + div { border-left: 1px solid var(--line); }
.facts b { display: block; font-size: 1.9rem; letter-spacing: -.03em; }
.facts span { font: .75rem 'JetBrains Mono', monospace; color: var(--muted); }
@media (max-width: 560px) { .facts { grid-template-columns: 1fr; } .facts div + div { border-left: 0; border-top: 1px solid var(--line); } }

/* CTA */
.cta-box { margin: 3em 0 0; padding: 28px; border: 1px solid var(--line); background: var(--bg-2); }
.cta-box h3 { font-size: 1.4rem; letter-spacing: -.02em; margin-bottom: 6px; }
.cta-box p { font-family: 'Space Grotesk', sans-serif !important; font-size: 1rem !important; color: var(--muted); }
.cta-box pre { margin: 16px 0; padding: 14px; overflow-x: auto; background: var(--bg); border: 1px solid var(--line); font: .82rem/1.6 'JetBrains Mono', monospace; }
.btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 20px; border-radius: 999px; text-decoration: none; font-weight: 700;
  border: 1.5px solid var(--text); transition: transform .15s, background .15s, color .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.ghost:hover { background: var(--text); color: var(--bg); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2.4em; }
.tag { font: .72rem 'JetBrains Mono', monospace; padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); }

footer { border-top: 1px solid var(--line); padding: 26px 0; color: var(--muted); font-size: 0.78rem; margin-top: 60px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--accent-text); text-decoration: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn:hover { transform: none; }
}

/* Terminal output block (real command output) */
.term { border: 1px solid var(--line); background: #0c0c0c; color: #e9e6df; }
.term .bar { display: flex; gap: 6px; padding: 10px 12px; border-bottom: 1px solid #262626; }
.term .bar i { width: 10px; height: 10px; border-radius: 50%; background: #333; display: block; }
.term .bar span { margin-left: 8px; font: .72rem 'JetBrains Mono', monospace; color: #8a877f; }
.term pre { margin: 0; padding: 16px 18px; overflow-x: auto; font: .82rem/1.65 'JetBrains Mono', monospace; }
.term .ok { color: #c9e84a; } .term .bad { color: #ff7a5c; } .term .dim { color: #8a877f; } .term .hl { color: #fff; font-weight: 600; }

/* Option cards (e.g. three algorithms) */
.cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 1.8em -60px; }
.cards3 > div { background: var(--bg); padding: 20px; }
.cards3 h4 { font-size: 1.1rem; letter-spacing: -.02em; margin-bottom: 6px; }
.cards3 .k { font: .7rem 'JetBrains Mono', monospace; color: var(--accent-text); text-transform: uppercase; }
.cards3 p { font-family: 'Space Grotesk', sans-serif !important; font-size: .95rem !important; line-height: 1.5 !important; color: var(--muted); margin-top: 8px !important; }
@media (max-width: 860px) { .cards3 { grid-template-columns: 1fr; margin-inline: 0; } }