:root {
  color-scheme: dark light;
  --bg: #0e1217;
  --bg-glow-1: rgba(79, 195, 247, 0.10);
  --bg-glow-2: rgba(255, 122, 61, 0.07);
  --glass: rgba(255, 255, 255, 0.045);
  --glass-hover: rgba(255, 255, 255, 0.075);
  --glass-strong: rgba(18, 23, 30, 0.72);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --ink: #e8edf3;
  --ink-2: #a6b1bf;
  --ink-3: #74808f;
  --accent: #4fc3f7;
  --accent-ink: #08131a;
  --warm: #ff7a3d;
  --code-bg: rgba(0, 0, 0, 0.32);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  --radius: 16px;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #eef1f5;
    --bg-glow-1: rgba(2, 119, 189, 0.10);
    --bg-glow-2: rgba(255, 122, 61, 0.08);
    --glass: rgba(255, 255, 255, 0.62);
    --glass-hover: rgba(255, 255, 255, 0.85);
    --glass-strong: rgba(246, 248, 251, 0.78);
    --line: rgba(15, 23, 34, 0.09);
    --line-strong: rgba(15, 23, 34, 0.16);
    --ink: #121820;
    --ink-2: #485462;
    --ink-3: #6f7b89;
    --accent: #0277bd;
    --accent-ink: #ffffff;
    --warm: #d9541e;
    --code-bg: rgba(15, 23, 34, 0.06);
    --shadow: 0 10px 30px rgba(15, 23, 34, 0.08);
  }
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(900px 520px at 12% -8%, var(--bg-glow-1), transparent 70%),
    radial-gradient(800px 480px at 105% 10%, var(--bg-glow-2), transparent 70%),
    var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
img { max-width: 100%; height: auto; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0; }

.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
main.wrap { flex: 1; padding-top: 8px; padding-bottom: 64px; }

.skip {
  position: absolute; left: 12px; top: -48px; z-index: 50;
  background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 8px;
}
.skip:focus { top: 12px; }

.ic { width: 1.1em; height: 1.1em; flex: none; vertical-align: -0.17em; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  padding-top: env(safe-area-inset-top, 0px);
  background: var(--glass-strong);
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.bar { display: flex; align-items: center; gap: 16px; min-height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: -0.01em; margin-right: auto; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--ink-2); text-decoration: none; padding: 7px 11px; border-radius: 9px; font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--ink); background: var(--glass); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--glass-hover); }
.nav .icon-link { display: inline-flex; padding: 8px; }
.nav .kofi { color: var(--accent-ink); background: var(--accent); margin-left: 6px; font-weight: 600; }
.nav .kofi:hover { color: var(--accent-ink); background: var(--accent); filter: brightness(1.08); }

.hero { padding: clamp(48px, 9vw, 104px) 0 clamp(32px, 5vw, 56px); max-width: 760px; }
.hero.small { padding-bottom: 80px; }
.eyebrow { margin: 0 0 14px; font-size: 13px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.hero h1 { font-size: clamp(36px, 6.4vw, 60px); font-weight: 700; letter-spacing: -0.03em; }
.hero-sub { font-size: clamp(17px, 2.3vw, 20px); color: var(--ink-2); margin: 20px 0 0; max-width: 62ch; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 0; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: 11px; font-weight: 600; font-size: 15.5px; text-decoration: none;
  background: var(--accent); color: var(--accent-ink); border: 1px solid transparent;
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: var(--glass); color: var(--ink); border-color: var(--line-strong); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.btn.ghost:hover { background: var(--glass-hover); filter: none; }

.section { margin-top: clamp(36px, 6vw, 64px); }
.section-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 18px; }
.section-head h2 { font-size: clamp(21px, 3vw, 26px); font-weight: 600; margin-right: auto; }
.more { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 500; text-decoration: none; }

.page-head { padding: clamp(36px, 6vw, 64px) 0 24px; max-width: 720px; }
.page-head h1 { font-size: clamp(32px, 5vw, 46px); font-weight: 700; }
.lead { font-size: clamp(17px, 2.2vw, 19px); color: var(--ink-2); margin: 14px 0 0; }

.grid { display: grid; gap: 16px; }
.grid.posts { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.grid.projects { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.grid.projects.wide { grid-template-columns: repeat(auto-fill, minmax(min(100%, 440px), 1fr)); }
.grid.topics { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

.card {
  position: relative;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  transition: border-color 0.15s ease, background-color 0.15s ease, transform 0.15s ease;
}
.post-card, .project-card { display: flex; flex-direction: column; overflow: hidden; }
.post-card:hover, .project-card:hover, .topic:hover { border-color: var(--line-strong); background: var(--glass-hover); }
.card-body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-title { font-size: 19px; font-weight: 600; letter-spacing: -0.01em; }
.card-title a { color: var(--ink); text-decoration: none; }
.card-title a:hover { color: var(--accent); }
.stretch::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); }
.card-text { margin: 0; color: var(--ink-2); font-size: 15.5px; }
.thumb { aspect-ratio: 16 / 9; overflow: hidden; border-bottom: 1px solid var(--line); background: var(--code-bg); }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

.meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0; font-size: 13.5px; color: var(--ink-3); }
.dot-sep { width: 3px; height: 3px; border-radius: 50%; background: currentColor; opacity: 0.7; }
.chip {
  position: relative; z-index: 1;
  display: inline-block; font-size: 12.5px; font-weight: 600; color: var(--accent);
  background: rgba(79, 195, 247, 0.12);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid rgba(79, 195, 247, 0.3);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  padding: 2px 10px; border-radius: 999px; text-decoration: none;
}
.chip:hover { background: color-mix(in srgb, var(--accent) 20%, transparent); }

.status { font-size: 12.5px; font-weight: 600; color: var(--warm); display: inline-flex; align-items: center; gap: 6px; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 3px color-mix(in srgb, var(--warm) 22%, transparent); }

.tags { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.tags li { font-family: var(--mono); font-size: 12px; color: var(--ink-2); background: var(--code-bg); border: 1px solid var(--line); padding: 2px 8px; border-radius: 7px; }

.card-links { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 14px; margin: 6px 0 0; font-size: 15px; font-weight: 500; }
.card-links a { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; }
.related { position: relative; z-index: 1; border-top: 1px solid var(--line); margin-top: 8px; padding-top: 12px; }
.related-head { margin: 0 0 6px; font-size: 12.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); }
.related ul { margin: 0; padding-left: 18px; font-size: 15px; }

.topic { display: flex; flex-direction: column; gap: 6px; padding: 18px 20px; text-decoration: none; color: var(--ink); }
.topic-name { font-weight: 600; font-size: 17px; }
.topic-blurb { font-size: 14.5px; color: var(--ink-2); }
.topic-count { font-size: 13px; color: var(--ink-3); margin-top: auto; padding-top: 6px; }

.empty { padding: 22px; color: var(--ink-2); margin: 0; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; }
.filter {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px; font-size: 14.5px; font-weight: 500; text-decoration: none;
  color: var(--ink-2); background: var(--glass); border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
}
.filter:hover { color: var(--ink); border-color: var(--line-strong); }
.filter[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
.filter .n { font-size: 12px; opacity: 0.75; font-variant-numeric: tabular-nums; }

.post { max-width: 740px; margin: 0 auto; }
.post-head { padding: clamp(36px, 6vw, 64px) 0 24px; }
.post-title { font-size: clamp(32px, 5.2vw, 46px); font-weight: 700; margin-top: 16px; letter-spacing: -0.025em; }
.post-project { margin: 16px 0 0; font-size: 15px; color: var(--ink-3); }
.cover { margin: 0 0 32px; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.cover img { display: block; width: 100%; }

.prose { font-size: 17.5px; line-height: 1.72; }
.prose > * + * { margin-top: 1.15em; }
.prose p, .prose ul, .prose ol, .prose blockquote, .prose pre, .prose table, .prose figure { margin-bottom: 0; }
.prose h2 { font-size: 26px; font-weight: 600; margin-top: 2em; }
.prose h3 { font-size: 21px; font-weight: 600; margin-top: 1.7em; }
.prose h4 { font-size: 18px; font-weight: 600; margin-top: 1.5em; }
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: 0.35em; }
.prose img { border-radius: 12px; border: 1px solid var(--line); }
.prose blockquote { margin-left: 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--accent); color: var(--ink-2); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.2em 0; }
.prose code { font-family: var(--mono); font-size: 0.86em; background: var(--code-bg); border: 1px solid var(--line); border-radius: 6px; padding: 0.1em 0.4em; }
.prose pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; overflow-x: auto; line-height: 1.55; }
.prose pre code { background: none; border: 0; padding: 0; font-size: 14px; }
.prose .highlight { margin-top: 1.15em; }
.prose table { display: block; overflow-x: auto; border-collapse: collapse; font-size: 15.5px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 12px; text-align: left; }
.prose th { background: var(--glass); font-weight: 600; }
.post-tags { margin-top: 32px; }

.kofi-line {
  display: flex; gap: 14px; align-items: flex-start;
  margin: 40px 0 0; padding: 18px 20px; border-radius: var(--radius);
  background: var(--glass);
  background: color-mix(in srgb, var(--warm) 9%, var(--glass));
  border: 1px solid rgba(255, 122, 61, 0.3);
  border: 1px solid color-mix(in srgb, var(--warm) 26%, transparent);
  color: var(--ink-2); font-size: 15.5px;
}
.kofi-line .ic { color: var(--warm); width: 22px; height: 22px; margin-top: 1px; }
.kofi-line p { margin: 0; }
.kofi-line a { color: var(--warm); font-weight: 600; }

.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 28px; }
.post-nav a { display: flex; flex-direction: column; gap: 6px; padding: 16px 18px; text-decoration: none; color: var(--ink); }
.post-nav a:hover { border-color: var(--line-strong); background: var(--glass-hover); }
.post-nav .next { text-align: right; align-items: flex-end; grid-column: 2; }
.post-nav .dir { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-3); font-weight: 500; }
.post-nav .t { font-weight: 600; font-size: 16px; line-height: 1.35; }

.site-footer { border-top: 1px solid var(--line); background: var(--glass-strong); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); }
.foot { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 24px; padding-top: 26px; padding-bottom: 30px; }
.foot-tag { margin: 0 auto 0 0; font-weight: 500; }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.foot-links a { display: inline-flex; align-items: center; gap: 7px; color: var(--ink-2); text-decoration: none; font-size: 15px; }
.foot-links a:hover { color: var(--ink); }
.foot-small { width: 100%; margin: 0; font-size: 13px; color: var(--ink-3); }

.highlight .c, .highlight .c1, .highlight .cm, .highlight .cs { color: #7d8a99; font-style: italic; }
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kr, .highlight .kt { color: #c792ea; }
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sh { color: #a5d6a7; }
.highlight .na, .highlight .nt, .highlight .nl, .highlight .py { color: #4fc3f7; }
.highlight .m, .highlight .mi, .highlight .mf { color: #ffb38a; }
.highlight .no, .highlight .kc { color: #ffb38a; }
.highlight .p, .highlight .o { color: var(--ink-2); }
@media (prefers-color-scheme: light) {
  .highlight .k, .highlight .kd, .highlight .kn, .highlight .kr, .highlight .kt { color: #7c3aed; }
  .highlight .s, .highlight .s1, .highlight .s2, .highlight .sb, .highlight .sh { color: #2e7d32; }
  .highlight .na, .highlight .nt, .highlight .nl, .highlight .py { color: #0277bd; }
  .highlight .m, .highlight .mi, .highlight .mf, .highlight .no, .highlight .kc { color: #c2410c; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .bar { min-height: 56px; gap: 8px; }
  .nav a { padding: 6px 8px; font-size: 14.5px; }
  .nav .kofi { margin-left: 2px; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav .next { grid-column: 1; }
  .prose { font-size: 16.5px; }
}

@supports not (backdrop-filter: blur(1px)) {
  .card, .filter, .btn.ghost { background: var(--glass-strong); }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}