:root {
  --bg: #0b0f14;
  --surface: #111820;
  --surface-2: #151e28;
  --text: #e7edf3;
  --muted: #91a0af;
  --line: #263441;
  --accent: #6ee7b7;
  --accent-strong: #34d399;
  --accent-ink: #06251a;
  --syntax-keyword: #c4a7e7;
  --syntax-name: #7dd3fc;
  --syntax-string: #a7f3d0;
  --syntax-number: #fbbf24;
  --syntax-comment: #718096;
  --syntax-error: #fca5a5;
  --shadow: 0 22px 70px rgba(0, 0, 0, .3);
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f7f8f6;
  --surface: #fff;
  --surface-2: #eef2ef;
  --text: #142019;
  --muted: #59675f;
  --line: #ced8d1;
  --accent: #087f5b;
  --accent-strong: #087f5b;
  --accent-ink: #fff;
  --syntax-keyword: #7c3aed;
  --syntax-name: #0369a1;
  --syntax-string: #047857;
  --syntax-number: #b45309;
  --syntax-comment: #64748b;
  --syntax-error: #b91c1c;
  --shadow: 0 22px 70px rgba(26, 48, 36, .1);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--sans);
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-underline-offset: .2em; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.shell { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 100;
  transform: translateY(-160%); padding: 10px 16px;
  background: var(--accent); color: var(--accent-ink);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky; top: 0; z-index: 20;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 76%, transparent);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(18px);
}
.nav-shell { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font: 700 1rem var(--mono); text-decoration: none; letter-spacing: -.03em; }
.brand span, .prompt, .kicker, .eyebrow { color: var(--accent); }
.primary-nav { display: flex; align-items: center; gap: 24px; }
.primary-nav a {
  color: var(--muted); font: 600 .83rem var(--mono);
  text-decoration: none; transition: color .2s ease;
}
.primary-nav a:hover, .primary-nav a[aria-current="page"] { color: var(--text); }
.theme-toggle {
  width: 36px; height: 36px; border: 1px solid var(--line); border-radius: 50%;
  background: var(--surface); color: var(--text); cursor: pointer;
}

.hero { padding: clamp(72px, 10vw, 140px) 0 90px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr); align-items: center; gap: 80px; }
.eyebrow, .kicker { font: 700 .75rem/1.4 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.status-dot {
  display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 12%, transparent);
}
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: -.045em; }
.hero h1 { max-width: 850px; margin: 24px 0; font-size: clamp(3.2rem, 7vw, 6.4rem); }
.hero-copy { max-width: 730px; margin: 0; color: var(--muted); font-size: clamp(1.06rem, 1.8vw, 1.28rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px;
  border: 1px solid var(--line); border-radius: 4px; background: var(--surface);
  font: 700 .82rem var(--mono); text-decoration: none; transition: transform .2s, border-color .2s;
}
.button:hover { transform: translateY(-2px); border-color: var(--accent); }
.button-primary { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); }

.terminal-card {
  border: 1px solid var(--line); border-radius: 10px; background: var(--surface);
  box-shadow: var(--shadow); transform: rotate(1.5deg);
}
.terminal-bar { display: flex; align-items: center; gap: 7px; padding: 12px 15px; border-bottom: 1px solid var(--line); }
.terminal-bar span { width: 9px; height: 9px; border-radius: 50%; background: #ff6b6b; }
.terminal-bar span:nth-child(2) { background: #ffd43b; }
.terminal-bar span:nth-child(3) { background: #51cf66; }
.terminal-bar b { margin-left: auto; color: var(--muted); font: 500 .68rem var(--mono); }
.terminal-body { min-height: 330px; padding: 26px; font: .82rem/1.75 var(--mono); }
.terminal-body p { margin: 0 0 5px; }
.terminal-body .output { margin: 0 0 20px 18px; color: var(--muted); }
.cursor { display: inline-block; width: 8px; height: 1.1em; margin-left: 6px; vertical-align: -.2em; background: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.section { padding-top: 96px; padding-bottom: 96px; }
.section-tinted { padding: 96px 0; border-block: 1px solid var(--line); background: var(--surface); }
.section-heading { margin-bottom: 44px; }
.section-heading h2, .contact-inner h2 { max-width: 740px; margin: 8px 0 0; font-size: clamp(2.1rem, 4vw, 3.4rem); }
.split-heading { display: flex; justify-content: space-between; align-items: end; gap: 50px; }
.split-heading > p { max-width: 480px; margin: 0; color: var(--muted); }
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.metrics-grid article { min-height: 200px; padding: 28px; border-right: 1px solid var(--line); }
.metrics-grid article:last-child { border: 0; }
.metrics-grid strong { display: block; color: var(--accent); font: 700 clamp(2rem, 4vw, 3.4rem)/1 var(--mono); letter-spacing: -.08em; }
.metrics-grid span { display: block; margin-top: 22px; color: var(--muted); font-size: .92rem; }
.expertise-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.expertise-grid article { min-height: 270px; padding: 34px; background: var(--surface); }
.expertise-grid article > span { color: var(--accent); font: 700 .75rem var(--mono); }
.expertise-grid h3 { margin: 50px 0 14px; font-size: 1.55rem; }
.expertise-grid p { max-width: 480px; margin: 0; color: var(--muted); }

.text-link { color: var(--accent); font: 700 .82rem var(--mono); text-decoration: none; }
.writing-list { border-top: 1px solid var(--line); }
.writing-list > a {
  display: grid; grid-template-columns: 130px 1fr auto; gap: 30px; align-items: start;
  padding: 28px 0; border-bottom: 1px solid var(--line); text-decoration: none;
}
.writing-list time { color: var(--muted); font: .72rem var(--mono); }
.writing-list strong { display: block; margin-bottom: 7px; font-size: 1.1rem; }
.writing-list small { display: block; max-width: 720px; color: var(--muted); font-size: .9rem; }
.writing-list b { color: var(--accent); transition: transform .2s; }
.writing-list a:hover b { transform: translate(3px, -3px); }

.contact-section { padding: 90px 0; border-top: 1px solid var(--line); background: var(--surface-2); }
.contact-inner { display: flex; justify-content: space-between; align-items: end; gap: 50px; }
.site-footer { border-top: 1px solid var(--line); }
.footer-grid { min-height: 110px; display: flex; justify-content: space-between; align-items: center; color: var(--muted); font: .75rem var(--mono); }
.footer-links { display: flex; gap: 22px; }

.page-hero, .article-header { padding-top: 100px; padding-bottom: 60px; }
.page-hero h1, .article-header h1 { max-width: 950px; margin: 14px 0; font-size: clamp(3rem, 7vw, 5.5rem); }
.page-hero > p:last-child, .article-header > p { max-width: 760px; color: var(--muted); font-size: 1.15rem; }
.page-section { padding-bottom: 110px; }
.article-meta { display: flex; gap: 20px; margin-top: 26px; color: var(--muted); font: .72rem var(--mono); }
.article-layout { display: grid; grid-template-columns: minmax(0, 800px); padding-bottom: 110px; }
.prose { font-size: 1.05rem; }
.prose h2 { margin: 2.5em 0 .8em; font-size: 2rem; }
.prose h3 { margin: 2em 0 .7em; font-size: 1.45rem; }
.prose p, .prose li { color: color-mix(in srgb, var(--text) 88%, var(--muted)); }
.prose a { color: var(--accent); }
.prose img { max-width: 100%; height: auto; }
.prose blockquote { margin: 2em 0; padding: 1px 24px; border-left: 3px solid var(--accent); color: var(--muted); }
.prose code { padding: .15em .35em; border-radius: 3px; background: var(--surface-2); font: .88em var(--mono); }
.prose pre { overflow: auto; margin: 1.6em 0; padding: 22px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.prose pre code { padding: 0; background: none; }
.prose table {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin: 2rem auto;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-spacing: 0;
  border-collapse: collapse;
  background: var(--surface);
  font-size: .94rem;
  -webkit-overflow-scrolling: touch;
}
.prose thead { background: var(--surface-2); }
.prose th,
.prose td {
  min-width: 8rem;
  padding: 12px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.prose th {
  color: var(--text);
  font: 700 .75rem/1.4 var(--mono);
  letter-spacing: .04em;
  text-transform: uppercase;
}
.prose tr:last-child td { border-bottom: 0; }
.prose th:last-child,
.prose td:last-child { border-right: 0; }
.prose tbody tr:nth-child(even) { background: color-mix(in srgb, var(--surface-2) 55%, transparent); }

/* Hugo/Chroma syntax highlighting */
.highlight { margin: 1.6em 0; }
.highlight pre { margin: 0; }
.chroma { color: var(--text); background: transparent; }
.chroma .line { display: flex; min-width: max-content; }
.chroma .lnlinks { color: inherit; text-decoration: none; outline: none; }
.chroma .lntable { width: 100%; margin: 0; border: 0; border-spacing: 0; }
.chroma .lntd { width: 100%; padding: 0; border: 0; vertical-align: top; }
.chroma .lntd:first-child { width: auto; }
.chroma .lnt,
.chroma .ln { padding-right: 1rem; color: var(--syntax-comment); user-select: none; }
.chroma .hl { background: color-mix(in srgb, var(--accent) 10%, transparent); }
.chroma .err { color: var(--syntax-error); }
.chroma .k,
.chroma .kc,
.chroma .kd,
.chroma .kn,
.chroma .kp,
.chroma .kr,
.chroma .kt,
.chroma .ow { color: var(--syntax-keyword); }
.chroma .n,
.chroma .na,
.chroma .nb,
.chroma .bp,
.chroma .nc,
.chroma .no,
.chroma .nd,
.chroma .ne,
.chroma .nf,
.chroma .fm,
.chroma .nl,
.chroma .nn,
.chroma .nx,
.chroma .py,
.chroma .nt,
.chroma .nv,
.chroma .vc,
.chroma .vg,
.chroma .vi,
.chroma .vm { color: var(--syntax-name); }
.chroma .s,
.chroma .sa,
.chroma .sb,
.chroma .sc,
.chroma .dl,
.chroma .sd,
.chroma .s2,
.chroma .se,
.chroma .sh,
.chroma .si,
.chroma .sx,
.chroma .sr,
.chroma .s1,
.chroma .ss { color: var(--syntax-string); }
.chroma .m,
.chroma .mb,
.chroma .mf,
.chroma .mh,
.chroma .mi,
.chroma .il,
.chroma .mo { color: var(--syntax-number); }
.chroma .c,
.chroma .ch,
.chroma .cm,
.chroma .c1,
.chroma .cs,
.chroma .cp,
.chroma .cpf { color: var(--syntax-comment); font-style: italic; }
.chroma .gd { color: var(--syntax-error); }
.chroma .gi { color: var(--syntax-string); }
.intro-prose { max-width: 800px; margin-bottom: 50px; }
.archive-note { margin: 0 0 46px; padding: 18px 20px; border: 1px solid var(--line); border-left-color: var(--accent); background: var(--surface); color: var(--muted); font-size: .88rem; }
.archive-note strong { color: var(--text); }
.post-list { border-top: 1px solid var(--line); }
.post-row { display: grid; grid-template-columns: 150px 1fr; gap: 40px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.post-row time { color: var(--muted); font: .72rem var(--mono); }
.post-row h2 { margin: 0 0 10px; font-size: 1.5rem; }
.post-row h2 a { text-decoration: none; }
.post-row p { max-width: 760px; margin: 0; color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px !important; font: .7rem var(--mono); }
.tags a { color: var(--accent); text-decoration: none; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 12px; }
.tag-cloud a { padding: 10px 14px; border: 1px solid var(--line); text-decoration: none; font: .8rem var(--mono); }
.tag-cloud span { color: var(--muted); }
.not-found { min-height: calc(100vh - 184px); padding-top: 14vh; }
.not-found h1 { max-width: 780px; margin: 15px 0; font-size: clamp(3rem, 8vw, 6rem); }
.not-found p:not(.kicker) { margin-bottom: 30px; color: var(--muted); }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 60px; }
  .terminal-card { max-width: 580px; transform: none; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics-grid article:nth-child(2) { border-right: 0; }
  .metrics-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 680px) {
  .shell { width: min(100% - 28px, 1160px); }
  .nav-shell { min-height: 64px; }
  .primary-nav { gap: 13px; }
  .primary-nav a { font-size: .69rem; }
  .primary-nav a:first-child { display: none; }
  .theme-toggle { width: 32px; height: 32px; }
  .hero { padding-top: 70px; }
  .hero h1 { font-size: clamp(3rem, 15vw, 4.6rem); }
  .section, .section-tinted { padding-top: 72px; padding-bottom: 72px; }
  .split-heading, .contact-inner { display: block; }
  .split-heading > p, .text-link { display: block; margin-top: 24px; }
  .metrics-grid { grid-template-columns: 1fr; }
  .metrics-grid article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .expertise-grid { grid-template-columns: 1fr; }
  .expertise-grid article { min-height: 230px; }
  .writing-list > a { grid-template-columns: 1fr auto; gap: 8px 18px; }
  .writing-list time { grid-column: 1 / -1; }
  .contact-inner .hero-actions { margin-top: 30px; }
  .footer-grid { align-items: flex-start; flex-direction: column; justify-content: center; gap: 6px; }
  .footer-grid p { margin: 0; }
  .page-hero, .article-header { padding-top: 72px; }
  .post-row { grid-template-columns: 1fr; gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}