:root {
    --bg: #fafaf9;
    --paper: #f4f3f0;
    --ink: #0c0c0c;
    --ink-2: #1a1a1a;
    --muted: #737373;
    --line: #d8d6d2;
    --line-2: #e8e6e2;
    --accent: #0c0c0c;

    --pad: clamp(20px, 4vw, 64px);
    --col: 1140px;
    --section-gap: 120px;
    --row-gap: 28px;
  }
  [data-theme="dark"] {
    --bg: #0c0c0c;
    --paper: #161616;
    --ink: #f0eeea;
    --ink-2: #d8d6d2;
    --muted: #8a8a8a;
    --line: #2a2a2a;
    --line-2: #1f1f1f;
    --accent: #f0eeea;
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html, body {
    background: var(--bg);
    color: var(--ink);
    font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    font-feature-settings: "ss01", "ss02", "calt", "zero";
  }
  body {
    min-height: 100vh;
    background-image: radial-gradient(rgba(0,0,0,0.025) 1px, transparent 1px);
    background-size: 4px 4px;
    background-position: 0 0;
  }
  [data-theme="dark"] body {
    background-image: radial-gradient(rgba(255,255,255,0.025) 1px, transparent 1px);
  }
  ::selection { background: var(--ink); color: var(--bg); }
  a { color: inherit; text-decoration: none; }

  /* TOPBAR ----------------------------------------------------- */
  .topbar {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in oklab, var(--bg) 88%, transparent);
    backdrop-filter: saturate(140%) blur(8px);
    -webkit-backdrop-filter: saturate(140%) blur(8px);
    border-bottom: 1px solid var(--line);
  }
  .topbar-inner {
    max-width: var(--col);
    margin: 0 auto;
    padding: 14px var(--pad);
    display: flex; align-items: center; justify-content: space-between;
    font-size: 13px;
    letter-spacing: 0.01em;
  }
  .brand { display: flex; align-items: baseline; gap: 4px; font-weight: 600; }
  .brand-mark {
    display: inline-block;
    width: 8px; height: 14px;
    background: var(--ink);
    margin-right: 8px;
    animation: blink 1.2s steps(2) infinite;
    align-self: center;
  }
  @keyframes blink { 50% { opacity: 0; } }
  .brand-text { color: var(--ink); font-weight: 600; }
  .brand-domain { color: var(--muted); font-weight: 400; }
  .nav { display: flex; gap: 28px; }
  .nav a {
    color: var(--muted);
    position: relative;
    padding: 4px 0;
    transition: color .15s;
  }
  .nav a:hover { color: var(--ink); }
  .nav a::before { content: "/ "; color: var(--line); }
  .topbar-meta {
    display: flex; align-items: center; gap: 8px;
    color: var(--muted);
    font-size: 12px;
  }
  .status-dot {
    width: 8px; height: 8px; background: #16a34a; display: inline-block;
    box-shadow: 0 0 0 2px color-mix(in oklab, #16a34a 25%, transparent);
  }
  [data-theme="dark"] .status-dot { background: #22c55e; }

  /* PAGE -------------------------------------------------------- */
  .page {
    max-width: var(--col);
    margin: 0 auto;
    padding: 0 var(--pad);
  }

  /* SECTION MARKERS -------------------------------------------- */
  .section-marker {
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 48px;
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--muted);
    text-transform: uppercase;
  }
  .marker-num { color: var(--ink); font-weight: 600; letter-spacing: 0; }
  .marker-line {
    flex: 1; height: 1px;
    background: repeating-linear-gradient(90deg, var(--line) 0 4px, transparent 4px 8px);
  }
  .marker-label { color: var(--muted); }

  /* HERO -------------------------------------------------------- */
  .hero { padding-top: 80px; padding-bottom: var(--section-gap); }
  .hero-grid {
    display: grid;
    grid-template-columns: 200px 1fr 200px;
    gap: 48px;
    align-items: start;
  }
  .hero-meta {
    display: flex; flex-direction: column; gap: 12px;
    padding-top: 8px;
    font-size: 11px;
  }
  .kv { display: flex; flex-direction: column; gap: 2px; }
  .kv .k {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    font-size: 10px;
  }
  .kv .v { color: var(--ink); font-weight: 500; font-size: 12px; }
  .kv .v .dot {
    width: 6px; height: 6px; background: #16a34a; display: inline-block; margin-right: 6px;
  }

  .hero-eyebrow {
    display: flex; flex-wrap: wrap; gap: 12px;
    font-size: 11px; letter-spacing: 0.12em; color: var(--muted);
    margin-bottom: 28px;
    text-transform: uppercase;
  }
  .hero-eyebrow .sep { color: var(--line); }

  .hero-title {
    font-size: clamp(40px, 6vw, 76px);
    font-weight: 500;
    line-height: 1.02;
    letter-spacing: -0.03em;
    margin-bottom: 36px;
    color: var(--ink);
  }
  .hero-title .line { display: block; }
  .hero-title em {
    font-style: italic;
    font-weight: 400;
    color: var(--muted);
    position: relative;
  }
  .hero-title em::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0.08em;
    height: 0.08em;
    background: var(--ink);
    opacity: 0.15;
  }

  .hero-sub {
    font-size: 15px;
    line-height: 1.65;
    color: var(--ink-2);
    max-width: 56ch;
    margin-bottom: 36px;
    text-wrap: pretty;
  }
  .hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

  .btn {
    display: inline-flex; align-items: center;
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0;
    padding: 12px 18px;
    border: 1px solid var(--ink);
    background: var(--ink);
    color: var(--bg);
    transition: transform .12s ease, background .15s, color .15s;
    cursor: pointer;
  }
  .btn:hover { transform: translateY(-1px); }
  .btn.ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--line);
  }
  .btn.ghost:hover { border-color: var(--ink); }
  .btn .caret {
    display: inline-block;
    width: 7px;
    margin-left: 6px;
    animation: blink 1.2s steps(2) infinite;
  }
  .btn.block {
    display: flex; justify-content: center;
    width: 100%;
    margin-top: 18px;
  }

  .hero-portrait { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
  .hero-portrait > .portrait-frame {
    border: 1px solid var(--line);
    padding: 12px;
    background: var(--paper);
  }
  .pixel-portrait {
    position: relative;
    width: 180px; height: 180px;
    image-rendering: pixelated;
  }
  .pixel-portrait div { position: absolute; }
  .portrait-caption {
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--muted);
    text-align: right;
    text-transform: uppercase;
  }
  .portrait-caption .muted { color: var(--line); }

  .hero-code-wrap {
    margin-top: 64px;
    position: relative;
  }
  .hero-code-wrap::before {
    content: "─── shell ───";
    position: absolute; top: -1px; left: 16px;
    transform: translateY(-50%);
    background: var(--bg);
    padding: 0 8px;
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--muted);
    text-transform: uppercase;
    z-index: 1;
  }
  .hero-code {
    margin: 0;
    padding: 24px 28px;
    background: var(--paper);
    border: 1px solid var(--line);
    font-size: 12px;
    line-height: 1.7;
    color: var(--ink-2);
    overflow-x: auto;
    white-space: pre;
    font-family: inherit;
  }

  /* ABOUT ------------------------------------------------------- */
  .about { padding-bottom: var(--section-gap); }
  .about-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 240px;
    gap: 48px;
  }
  .about-lead p {
    font-size: clamp(20px, 2vw, 26px);
    font-weight: 400;
    line-height: 1.4;
    letter-spacing: -0.01em;
    color: var(--ink);
    text-wrap: pretty;
  }
  .about-body { display: flex; flex-direction: column; gap: 16px; padding-top: 8px; }
  .about-body p {
    font-size: 14px; line-height: 1.7;
    color: var(--ink-2);
    text-wrap: pretty;
  }
  .about-body em { font-style: italic; color: var(--ink); font-weight: 500; }

  .kv-block {
    border: 1px solid var(--line);
    padding: 16px;
    background: var(--paper);
  }
  .kv-block .kv {
    flex-direction: row; justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px dashed var(--line);
  }
  .kv-block .kv:last-child { border-bottom: 0; }
  .kv-block .k { font-size: 10px; }
  .kv-block .v { font-size: 11px; }

  /* WORK -------------------------------------------------------- */
  .work { padding-bottom: var(--section-gap); }
  .work-list { list-style: none; }
  .work-row {
    display: grid;
    grid-template-columns: 120px 1fr 60px;
    gap: 32px;
    padding: var(--row-gap) 0;
    border-top: 1px solid var(--line);
    align-items: start;
  }
  .work-row:last-child { border-bottom: 1px solid var(--line); }
  .work-year {
    font-size: 12px; color: var(--muted);
    letter-spacing: 0.04em;
    padding-top: 4px;
  }
  .work-head {
    display: flex; align-items: baseline; gap: 14px;
    margin-bottom: 8px;
    flex-wrap: wrap;
  }
  .work-co {
    font-size: 18px; font-weight: 600;
    letter-spacing: -0.01em; color: var(--ink);
  }
  a.work-co {
    border-bottom: 1px solid transparent;
    transition: border-color .15s;
  }
  a.work-co:hover { border-bottom-color: var(--ink); }
  .work-role {
    font-size: 12px; color: var(--muted);
    text-transform: uppercase; letter-spacing: 0.06em;
  }
  .work-note {
    font-size: 14px; line-height: 1.6;
    color: var(--ink-2); max-width: 64ch;
    margin-bottom: 12px;
    text-wrap: pretty;
  }
  .work-note a {
    color: var(--ink);
    border-bottom: 1px solid var(--line);
    transition: border-color .15s;
  }
  .work-note a:hover { border-bottom-color: var(--ink); }
  .work-tags { display: flex; gap: 6px; flex-wrap: wrap; }
  .tag {
    font-size: 10px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 4px 8px;
    border: 1px solid var(--line);
    color: var(--muted);
    background: var(--paper);
  }
  .work-num {
    font-size: 11px; color: var(--line);
    text-align: right; font-weight: 600;
    padding-top: 6px;
  }

  /* WRITING ----------------------------------------------------- */
  .writing { padding-bottom: var(--section-gap); }
  .writing-list { list-style: none; }
  .writing-row {
    display: grid;
    grid-template-columns: 80px 1fr 80px 70px 24px;
    gap: 24px;
    padding: 16px 0;
    border-top: 1px solid var(--line);
    align-items: center;
    font-size: 13px;
    transition: padding-left .15s ease, background .15s;
  }
  .writing-row:last-child { border-bottom: 1px solid var(--line); }
  .writing-row:hover { padding-left: 8px; background: var(--paper); }
  .writing-row a {
    display: contents;
    color: inherit;
  }
  .writing-date { color: var(--muted); font-size: 11px; letter-spacing: 0.04em; }
  .writing-title { color: var(--ink); font-weight: 500; letter-spacing: -0.005em; }
  .writing-kind {
    font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--muted); border: 1px solid var(--line);
    padding: 3px 8px; text-align: center; width: fit-content;
  }
  .writing-read { font-size: 11px; color: var(--muted); text-align: right; }
  .writing-arrow {
    color: var(--line); font-size: 14px; text-align: right;
    transition: color .15s, transform .15s;
  }
  .writing-row:hover .writing-arrow { color: var(--ink); transform: translateX(4px); }
  .writing-more {
    margin-top: 28px;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.04em;
  }
  .writing-more a {
    color: var(--ink);
    border-bottom: 1px solid var(--line);
    padding-bottom: 1px;
    transition: border-color .15s;
  }
  .writing-more a:hover { border-bottom-color: var(--ink); }

  .writing-subscribe {
    margin-top: 14px;
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    font-size: 12px;
  }
  .writing-subscribe-label {
    color: var(--muted);
    letter-spacing: 0.04em;
    white-space: nowrap;
  }
  .writing-subscribe .subscribe-input {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    padding: 8px 10px;
    font-size: 12px;
  }
  .writing-subscribe .btn {
    padding: 8px 14px;
    font-size: 12px;
  }

  /* TRUST ------------------------------------------------------- */
  .trust { padding-bottom: var(--section-gap); }
  .trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }
  .trust-cell {
    display: flex; align-items: center; justify-content: center;
    padding: 28px 16px;
    text-align: center;
    font-size: 13px;
    letter-spacing: 0.14em;
    color: var(--muted);
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    font-weight: 500;
    text-decoration: none;
    transition: color .15s, background .15s;
  }
  a.trust-cell:hover {
    color: var(--ink);
    background: var(--paper);
  }

  .subscribe-input {
    font-family: inherit;
    font-size: 13px;
    color: var(--ink);
    background: var(--bg);
    border: 1px solid var(--line);
    padding: 10px 12px;
    outline: none;
    transition: border-color .15s;
  }
  .subscribe-input:focus { border-color: var(--ink); }
  .subscribe-input::placeholder { color: var(--muted); }

  /* CONTACT ----------------------------------------------------- */
  .contact { padding-bottom: var(--section-gap); }
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
  }
  .contact-lead h2 {
    font-size: clamp(32px, 4vw, 52px);
    font-weight: 500;
    letter-spacing: -0.025em;
    line-height: 1.05;
    margin-bottom: 20px;
    color: var(--ink);
  }
  .contact-lead p {
    font-size: 15px;
    line-height: 1.65;
    color: var(--ink-2);
    max-width: 44ch;
    text-wrap: pretty;
  }
  .contact-card {
    border: 1px solid var(--ink);
    background: var(--paper);
    padding: 24px;
  }
  .contact-pre {
    font-family: inherit;
    font-size: 13px;
    line-height: 1.8;
    color: var(--ink-2);
    white-space: pre;
  }
  .contact-pre a {
    color: var(--ink);
    border-bottom: 1px solid var(--line);
    transition: border-color .15s;
  }
  .contact-pre a:hover { border-bottom-color: var(--ink); }

  /* FOOTER ------------------------------------------------------ */
  .footer { border-top: 1px solid var(--line); margin-top: 0; }
  .footer-grid {
    max-width: var(--col);
    margin: 0 auto;
    padding: 28px var(--pad);
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.04em;
  }
  .foot-cell.center { text-align: center; }
  .foot-cell.right { text-align: right; }
  .mono-tight { color: var(--ink); }

  /* THEME TOGGLE ----------------------------------------------- */
  .theme-toggle {
    background: transparent;
    border: 1px solid var(--line);
    color: var(--muted);
    padding: 4px 8px;
    font-family: inherit;
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    transition: border-color .15s, color .15s;
  }
  .theme-toggle:hover { border-color: var(--ink); color: var(--ink); }

  /* RESPONSIVE -------------------------------------------------- */
  @media (max-width: 920px) {
    .hero-grid { grid-template-columns: 1fr; gap: 32px; }
    .hero-meta { flex-direction: row; flex-wrap: wrap; gap: 24px; }
    .hero-portrait { align-items: flex-start; }
    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .work-row { grid-template-columns: 1fr; gap: 8px; }
    .work-num { display: none; }
    .writing-row { grid-template-columns: 70px 1fr 60px; gap: 12px; font-size: 12px; }
    .writing-kind, .writing-arrow { display: none; }
    .trust-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-grid { grid-template-columns: 1fr; }
    .foot-cell.center, .foot-cell.right { text-align: left; }
    .nav { display: none; }
  }

/* ARTICLE / PROSE -------------------------------------------------- */
.page.article { padding-top: 64px; padding-bottom: 80px; max-width: 760px; }
.back-link {
  display: inline-flex; align-items: center;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 56px;
  transition: color .15s;
}
.back-link:hover { color: var(--ink); }
.article-head { margin-bottom: 48px; padding-bottom: 32px; border-bottom: 1px solid var(--line); }
.article-meta {
  display: flex; gap: 12px; align-items: center;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 18px;
  text-transform: uppercase;
}
.article-meta .sep { color: var(--line); }
.article-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0;
}
.article-foot {
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  display: flex; gap: 28px; flex-wrap: wrap;
}
.article-foot .back-link { margin-bottom: 0; }

.prose { color: var(--ink-2); font-size: 15px; line-height: 1.75; }
.prose > * + * { margin-top: 18px; }
.prose p { text-wrap: pretty; max-width: 70ch; }
.prose h2 {
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin-top: 48px;
  margin-bottom: 8px;
  line-height: 1.2;
}
.prose h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.008em;
  color: var(--ink);
  margin-top: 36px;
  margin-bottom: 6px;
  line-height: 1.25;
}
.prose h4 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  margin-top: 28px;
  margin-bottom: 4px;
}
.prose ul, .prose ol { padding-left: 28px; max-width: 70ch; }
.prose li { margin-top: 6px; }
.prose li:first-child { margin-top: 0; }
.prose a {
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  transition: border-color .15s;
}
.prose a:hover { border-bottom-color: var(--ink); }
.prose code {
  font-family: inherit;
  font-size: 13px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 1px 6px;
  color: var(--ink);
}
.prose pre {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 18px 20px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--ink-2);
  overflow-x: auto;
  white-space: pre;
  position: relative;
  margin: 24px 0;
}
.prose pre code {
  background: transparent;
  border: 0;
  padding: 0;
  font-size: inherit;
  color: inherit;
}
.prose blockquote {
  border-left: 2px solid var(--line);
  padding-left: 20px;
  color: var(--ink-2);
  font-style: italic;
  margin: 24px 0;
}
.prose blockquote em { font-style: normal; }
.prose hr {
  border: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 4px, transparent 4px 8px);
  margin: 36px 0;
}
.prose figure { margin: 28px 0; }
.prose figure img,
.prose p > img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--paper);
  margin: 28px auto;
}
.prose .callout {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 18px 22px;
  margin: 24px 0;
  font-size: 14.5px;
  line-height: 1.65;
}
.prose .post-lede {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.005em;
  max-width: 70ch;
  padding-bottom: 24px;
  margin-bottom: 8px;
  border-bottom: 1px dashed var(--line);
}
.prose .video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  background: var(--paper);
  margin: 32px 0;
  overflow: hidden;
}
.prose .video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
@supports not (aspect-ratio: 16/9) {
  .prose .video-embed { padding-top: 56.25%; height: 0; }
}

/* WRITING INDEX (full archive page) -------------------------------- */
.archive-section { padding-top: 56px; padding-bottom: var(--section-gap); }
.archive-head {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.archive-head h1 {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--ink);
  margin: 8px 0 0;
}

@media (max-width: 920px) {
  .article-meta { flex-wrap: wrap; }
  .prose pre { font-size: 11.5px; padding: 14px 16px; }
}