:root {
  --bg:        oklch(0.155 0.008 240);
  --bg-2:      oklch(0.195 0.008 240);
  --bg-3:      oklch(0.225 0.008 240);
  --line:      oklch(0.30  0.008 240);
  --line-2:    oklch(0.38  0.008 240);
  --fg:        oklch(0.93  0.005 90);
  --fg-soft:   oklch(0.78  0.005 90);
  --muted:     oklch(0.58  0.008 240);
  --dim:       oklch(0.46  0.008 240);
  --accent:    oklch(0.82  0.16  145);
  --accent-d:  oklch(0.62  0.16  145);
  --warn:      oklch(0.82  0.16  75);
  --danger:    oklch(0.72  0.18  25);

  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --serif: 'IBM Plex Serif', Georgia, serif;

  --maxw: 1080px;
  --pad: clamp(20px, 4vw, 40px);
}

[data-theme="light"] {
  --bg:        oklch(0.985 0.003 90);
  --bg-2:      oklch(0.965 0.005 90);
  --bg-3:      oklch(0.945 0.005 90);
  --line:      oklch(0.86  0.006 90);
  --line-2:    oklch(0.78  0.006 90);
  --fg:        oklch(0.20  0.008 240);
  --fg-soft:   oklch(0.34  0.008 240);
  --muted:     oklch(0.48  0.008 240);
  --dim:       oklch(0.62  0.008 240);
  --accent:    oklch(0.55  0.17  145);
  --accent-d:  oklch(0.42  0.17  145);
  --warn:      oklch(0.55  0.17  60);
  --danger:    oklch(0.55  0.20  25);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-feature-settings: 'ss02' on, 'ss03' on, 'cv11' on;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background-image:
    radial-gradient(1200px 600px at 80% -200px, color-mix(in oklch, var(--accent) 8%, transparent), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg) 100%);
}

a { color: var(--fg); text-decoration: none; }
a:hover { color: var(--accent); }

::selection { background: var(--accent); color: var(--bg); }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}
.wrap-narrow { max-width: 720px; margin: 0 auto; padding: 0 clamp(20px, 4vw, 32px); }

/* topbar ----------------------------------------------------- */
.topbar {
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 56px;
  /* On narrow viewports the brand + 5-item nav + theme button can exceed
     the wrap width. Allow the topbar row to scroll sideways instead of
     wrapping or squeezing items - the page body stays centered. */
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;        /* firefox */
  -ms-overflow-style: none;     /* legacy edge */
}
.topbar .row::-webkit-scrollbar { display: none; }
.topbar .row > * { flex-shrink: 0; }
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand .glyph { color: var(--accent); font-weight: 700; }
.brand .host { color: var(--fg); }
.brand .tld { color: var(--muted); font-weight: 400; }

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13.5px;
}
.nav a {
  padding: 8px 12px;
  border-radius: 4px;
  color: var(--fg-soft);
}
.nav a:hover { color: var(--fg); background: var(--bg-2); }
.nav .sep { color: var(--dim); user-select: none; }

.theme-btn {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--fg-soft);
  font: inherit;
  font-size: 12px;
  height: 30px;
  padding: 0 10px;
  border-radius: 4px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.theme-btn:hover { color: var(--fg); border-color: var(--line-2); }
.theme-btn .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}

/* hero ------------------------------------------------------ */
.hero {
  padding: 88px 0 72px;
  border-bottom: 1px solid var(--line);
}
.prompt {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.prompt .p-user { color: var(--accent); }
.prompt .p-host { color: var(--fg-soft); }
.prompt .p-path { color: var(--warn); }
.prompt .p-cmd { color: var(--fg); }
.prompt .p-sep { color: var(--dim); }

.hero h1 {
  font-family: var(--mono);
  font-weight: 500;
  font-size: clamp(34px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
  max-width: 18ch;
}
.hero h1 .em { color: var(--accent); }
.hero .lede {
  font-family: var(--serif);
  font-size: clamp(17px, 1.8vw, 20px);
  line-height: 1.55;
  color: var(--fg-soft);
  max-width: 60ch;
  margin: 0 0 36px;
}

.status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 32px;
}
.status .pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--fg-soft);
  background: var(--bg-2);
}
.status .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 color-mix(in oklch, var(--accent) 60%, transparent);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in oklch, var(--accent) 50%, transparent); }
  70%  { box-shadow: 0 0 0 8px color-mix(in oklch, var(--accent) 0%, transparent); }
  100% { box-shadow: 0 0 0 0 color-mix(in oklch, var(--accent) 0%, transparent); }
}
.status .meta { display: inline-flex; align-items: center; gap: 6px; }
.status .meta .k { color: var(--dim); }
.status .meta .v { color: var(--fg-soft); }

.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--fg);
  font: inherit;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 120ms, background 120ms, color 120ms;
}
.btn:hover { border-color: var(--accent-d); }
.btn.primary {
  background: var(--accent);
  color: oklch(0.18 0.02 145);
  border-color: var(--accent);
}
.btn.primary:hover {
  background: color-mix(in oklch, var(--accent) 88%, white);
  color: oklch(0.16 0.02 145);
}
.btn .arr { transition: transform 160ms; }
.btn:hover .arr { transform: translateX(2px); }
.arrow-svg { width: 12px; height: 12px; flex: none; }

/* sections -------------------------------------------------- */
section { padding: 80px 0; border-bottom: 1px solid var(--line); }
section.tight { padding: 56px 0; }

.sec-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 36px;
}
.sec-head .label {
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: lowercase;
}
.sec-head .label .k { color: var(--accent); margin-right: 6px; }
.sec-head h2 {
  font-family: var(--mono);
  font-weight: 500;
  font-size: clamp(22px, 2.4vw, 28px);
  letter-spacing: -0.01em;
  margin: 6px 0 0;
}
.sec-head .right { color: var(--muted); font-size: 12.5px; }

/* projects -------------------------------------------------- */
.projects { display: grid; gap: 20px; }
@media (min-width: 760px) { .projects { grid-template-columns: 1fr 1fr; } }
.proj {
  border: 1px solid var(--line);
  background: var(--bg-2);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
}
.proj::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}
.proj .top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.proj h3 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.proj h3 .slash { color: var(--accent); }
.proj .badge {
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 9px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.proj p {
  margin: 0;
  color: var(--fg-soft);
  font-size: 13.5px;
  line-height: 1.65;
}
.proj .stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.chip {
  font-size: 11px;
  color: var(--fg-soft);
  background: var(--bg-3);
  border: 1px solid var(--line);
  padding: 3px 8px;
  border-radius: 4px;
}
.proj .links {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12.5px;
  color: var(--muted);
}
.proj .links a {
  color: var(--fg-soft);
  border-bottom: 1px dashed var(--line-2);
  padding-bottom: 1px;
}
.proj .links a:hover { color: var(--accent); border-color: var(--accent); }

/* stack ----------------------------------------------------- */
.stack-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-2);
  overflow: hidden;
}
.stack-box .file-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.stack-box .file-head .name { color: var(--fg-soft); }
.stack-box .file-head .dots { display: inline-flex; gap: 6px; }
.stack-box .file-head .dots i {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--line-2);
  display: inline-block;
}
.stack-grid { display: grid; grid-template-columns: 1fr; }
@media (min-width: 720px) { .stack-grid { grid-template-columns: 1fr 1fr; } }
.stack-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 14px 18px;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.stack-row:nth-child(-n+2) { border-top: none; }
@media (max-width: 719px) {
  .stack-row:nth-child(2) { border-top: 1px solid var(--line); }
}
.stack-row .k { color: var(--muted); font-size: 12.5px; }
.stack-row .k::before { content: "// "; color: var(--dim); }
.stack-row .v { color: var(--fg-soft); font-size: 13.5px; line-height: 1.7; }
.stack-row .v b { color: var(--fg); font-weight: 500; }

/* writing index --------------------------------------------- */
.writing-featured {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  border-radius: 8px;
  padding: 28px;
  margin-bottom: 36px;
  position: relative;
}
.writing-featured .tag {
  position: absolute;
  top: -10px;
  left: 20px;
  background: var(--bg);
  padding: 2px 10px;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  border-radius: 999px;
}
.writing-featured h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 4px 0 12px;
}
.writing-featured h3 a:hover { color: var(--accent); }
.writing-featured .excerpt {
  font-family: var(--serif);
  color: var(--fg-soft);
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 18px;
  max-width: 70ch;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 12px;
  color: var(--muted);
  align-items: center;
}
.post-meta .tag-mini { color: var(--accent); }
.post-meta .dot { color: var(--dim); }
.post-meta .author { display: inline-flex; align-items: center; gap: 8px; color: var(--fg-soft); }
.post-meta .author .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.writing-list { list-style: none; padding: 0; margin: 0; }
.writing-list li {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 20px;
  padding: 18px 4px;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.writing-list li:first-child { border-top: none; padding-top: 6px; }
.writing-list .date {
  color: var(--muted);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}
.writing-list .title-line a {
  font-size: 15.5px;
  color: var(--fg);
  font-weight: 500;
  letter-spacing: -0.005em;
}
.writing-list .title-line a:hover { color: var(--accent); }
.writing-list .tag-mini {
  color: var(--muted);
  font-size: 11.5px;
  margin-left: 10px;
  text-transform: lowercase;
}
.writing-list .read {
  color: var(--dim);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
}
@media (max-width: 640px) {
  .writing-list li { grid-template-columns: 1fr; gap: 4px; }
  .writing-list .read { display: none; }
}

/* about ----------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
@media (min-width: 800px) {
  .about-grid { grid-template-columns: 1.4fr 1fr; gap: 56px; }
}
.about-prose {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.7;
  color: var(--fg-soft);
  max-width: 60ch;
}
.about-prose p { margin: 0 0 1.1em; }
.about-prose p:last-child { margin-bottom: 0; }
.about-prose b, .about-prose strong { color: var(--fg); font-weight: 500; }

.timeline {
  border-left: 1px solid var(--line);
  padding-left: 22px;
  position: relative;
}
.timeline .row { margin-bottom: 24px; position: relative; }
.timeline .row::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 8px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--line-2);
}
.timeline .row.now::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--accent) 18%, transparent);
}
.timeline .when {
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.timeline .where {
  font-size: 14px;
  color: var(--fg);
  font-weight: 500;
  margin: 2px 0 1px;
}
.timeline .role { font-size: 12.5px; color: var(--fg-soft); }

/* footer ---------------------------------------------------- */
footer.site {
  padding: 48px 0 64px;
  color: var(--muted);
  font-size: 12.5px;
  border-top: 1px solid var(--line);
}
footer.site .frow {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 32px;
  align-items: baseline;
  justify-content: space-between;
}
footer.site .links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}
footer.site .links a { color: var(--fg-soft); }
footer.site .links a:hover { color: var(--accent); }
footer.site .copy { color: var(--dim); }
footer.site .copy .glyph { color: var(--accent); }

/* misc ------------------------------------------------------ */
.kbd {
  font-size: 11px;
  color: var(--fg-soft);
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 6px;
  background: var(--bg-2);
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }

/* post detail page ------------------------------------------ */
.post-head { padding: 64px 0 40px; border-bottom: 1px solid var(--line); }
.crumbs { color: var(--muted); font-size: 12.5px; margin-bottom: 22px; }
.crumbs a {
  color: var(--fg-soft);
  border-bottom: 1px dashed var(--line-2);
  padding-bottom: 1px;
}
.crumbs a:hover { color: var(--accent); border-color: var(--accent); }
.crumbs .sep { color: var(--dim); margin: 0 8px; }

.post-tags {
  display: flex;
  gap: 10px;
  color: var(--accent);
  font-size: 12px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

h1.post-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(32px, 4.6vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 22px;
}

article.post { padding: 48px 0 64px; }

.prose {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.7;
  color: var(--fg-soft);
  /* Long URLs / unbreakable identifiers should wrap rather than push the
     column wider than the viewport on mobile. */
  min-width: 0;
  overflow-wrap: anywhere;
}
.prose > * + * { margin-top: 1.2em; }
.prose .lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--fg);
  font-style: italic;
}
.prose h2 {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.005em;
  color: var(--fg);
  margin: 2.2em 0 0.6em;
  padding-top: 0.4em;
  border-top: 1px solid var(--line);
}
.prose h2::before { content: "## "; color: var(--accent); }
.prose h3 {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 500;
  color: var(--fg);
  margin: 2em 0 0.5em;
}
.prose h3::before { content: "### "; color: var(--accent-d); }
.prose b, .prose strong { color: var(--fg); font-weight: 600; }
.prose a { color: var(--fg); border-bottom: 1px solid var(--accent); }
.prose a:hover { color: var(--accent); }
.prose blockquote {
  margin: 1.6em 0;
  padding: 4px 0 4px 18px;
  border-left: 2px solid var(--accent);
  color: var(--fg);
  font-style: italic;
}
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li { margin: 0.4em 0; }
.prose code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--fg);
}
.prose pre {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px 18px;
  overflow-x: auto;
  /* Stay within the parent column; long lines scroll inside the <pre>
     instead of widening the post layout. */
  max-width: 100%;
  line-height: 1.55;
  color: var(--fg-soft);
}
.prose pre code {
  background: transparent;
  border: none;
  padding: 0;
  border-radius: 0;
  color: inherit;
  font-size: inherit;
}
.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.6em auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-2);
}
.prose figure { margin: 1.8em 0; }
.prose figure img { margin: 0 auto 8px; }
.prose figcaption {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}
.prose figcaption::before { content: "// "; color: var(--dim); }

/* pygments-ish highlight tokens (matches generator output) */
.prose pre .c, .prose pre .c1, .prose pre .cm { color: var(--dim); font-style: italic; }
.prose pre .k, .prose pre .kd, .prose pre .kn, .prose pre .kc { color: var(--accent); }
.prose pre .s, .prose pre .s1, .prose pre .s2 { color: var(--warn); }
.prose pre .n, .prose pre .nv, .prose pre .nf, .prose pre .nb { color: var(--fg); }
.prose pre .o, .prose pre .p { color: var(--fg-soft); }

.callout {
  margin: 1.8em 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  background: var(--bg-2);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--fg-soft);
}
.callout .lab {
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
  display: block;
}

.layout { display: grid; grid-template-columns: 1fr; gap: 40px; }
/* Allow grid children to be narrower than their intrinsic content so a wide
   <pre> or long URL inside .prose can't push the page past the viewport. */
.layout > * { min-width: 0; }
@media (min-width: 1100px) {
  .layout { grid-template-columns: 220px 1fr; gap: 64px; align-items: start; }
  .toc-wrap { position: sticky; top: 80px; }
}
.toc {
  border-left: 1px solid var(--line);
  padding-left: 16px;
  font-size: 12.5px;
  color: var(--muted);
}
.toc .lab {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.toc ol { list-style: none; padding: 0; margin: 0; counter-reset: t; }
.toc li { counter-increment: t; padding: 4px 0; }
.toc li::before { content: counter(t, decimal-leading-zero) "  "; color: var(--dim); }
.toc a { color: var(--fg-soft); }
.toc a:hover { color: var(--accent); }

.post-foot {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
}
.post-foot .links { display: flex; gap: 14px; }
.post-foot a { color: var(--fg-soft); border-bottom: 1px dashed var(--line-2); padding-bottom: 1px; }
.post-foot a:hover { color: var(--accent); border-color: var(--accent); }

.nav-posts { display: grid; gap: 14px; margin-top: 32px; }
@media (min-width: 700px) { .nav-posts { grid-template-columns: 1fr 1fr; } }
.nav-posts a {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-2);
  color: var(--fg);
}
.nav-posts a:hover { border-color: var(--accent-d); }
.nav-posts .lab {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.nav-posts .ttl { font-size: 14px; line-height: 1.4; }