/* Robert Streize — personal site (no framework, ~5 KB gz). */
:root {
  --bg: #0a0a0b;
  --bg-elev: #121214;
  --fg: #ececee;
  --fg-dim: #a4a4ad;
  --line: #232328;
  --accent: #ffb86b;
  --accent-2: #6ad0ff;
  --radius: 14px;
  --maxw: 880px;
  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
:root[data-theme="light"] {
  --bg: #fafaf7;
  --bg-elev: #ffffff;
  --fg: #1a1a1c;
  --fg-dim: #5a5a62;
  --line: #e5e5e0;
  --accent: #c0521b;
  --accent-2: #1d6fa5;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font-family: var(--font-sans); font-size: 17px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; border-bottom: 1px solid transparent;
    transition: border-color .15s ease, color .15s ease; }
a:hover { border-bottom-color: var(--accent); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--bg-elev);
  padding: .5rem .75rem; border-radius: 8px; z-index: 10; }

.nav {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav nav { display: flex; align-items: center; gap: clamp(.6rem, 2vw, 1.5rem); }
.nav nav a { color: var(--fg-dim); font-size: .95rem; }
.nav nav a:hover { color: var(--fg); }
.brand { display: inline-flex; align-items: center; gap: .6rem;
  font-weight: 600; letter-spacing: -.01em; border-bottom: none; }
.brand-mark {
  display: grid; place-items: center; width: 28px; height: 28px;
  border-radius: 8px; background: var(--fg); color: var(--bg);
  font-weight: 700; font-size: .95rem;
}
#theme-toggle {
  background: transparent; color: var(--fg-dim);
  border: 1px solid var(--line); border-radius: 999px;
  width: 34px; height: 34px; display: grid; place-items: center;
  cursor: pointer; transition: color .15s, border-color .15s, transform .15s;
}
#theme-toggle:hover { color: var(--fg); border-color: var(--fg-dim); transform: rotate(15deg); }

main { max-width: var(--maxw); margin: 0 auto;
  padding: clamp(2rem, 6vw, 4rem) clamp(1rem, 4vw, 2rem) 4rem; }
.section { padding: clamp(3rem, 8vw, 5rem) 0; border-top: 1px solid var(--line); }
.section h2 { font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.02em;
  margin: 0 0 1.5rem; display: flex; align-items: baseline; gap: .75rem; }
.section h2 .num { color: var(--fg-dim); font-family: var(--font-mono);
  font-size: .85rem; font-weight: 400; }
.prose p { color: var(--fg-dim); max-width: 62ch; }
.prose p + p { margin-top: 1rem; }
.prose em { color: var(--fg); font-style: normal;
  background: color-mix(in oklab, var(--accent) 18%, transparent);
  padding: 0 .25em; border-radius: 4px; }
.prose strong { color: var(--fg); font-weight: 600; }
.pub-list { margin: .5rem 0 0; padding: 0; list-style: none; max-width: 62ch; }
.pub-list li { color: var(--fg-dim); position: relative; line-height: 1.5; }
.pub-list > li:not(:has(.pub-link)) {
  padding: .55rem 0 .55rem 1.4rem;
  border-bottom: 1px solid var(--line);
}
.pub-list > li:not(:has(.pub-link))::before {
  content: "›"; position: absolute; left: 0;
  color: var(--accent); font-family: var(--font-mono);
}
.pub-list > li:last-child:not(:has(.pub-link)) { border-bottom: none; }

.pub-link {
  display: grid; grid-template-columns: 1fr auto;
  grid-template-areas: "title arrow" "meta arrow";
  gap: .15rem .75rem; align-items: start;
  padding: .8rem 1rem .8rem 1.1rem;
  margin: .35rem 0;
  border-radius: 10px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--fg);
  background: color-mix(in oklab, var(--fg) 3%, transparent);
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.pub-link:hover {
  border-color: color-mix(in oklab, var(--accent) 55%, var(--line));
  background: color-mix(in oklab, var(--accent) 10%, transparent);
  transform: translateX(2px);
}
.pub-link:focus-visible {
  outline: none;
  border-color: color-mix(in oklab, var(--accent) 65%, var(--line));
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
}
.pub-title { grid-area: title; font-weight: 500; color: var(--fg); line-height: 1.4; }
.pub-meta {
  grid-area: meta;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .03em; color: var(--fg-dim);
}
.pub-arrow {
  grid-area: arrow; align-self: center;
  font-family: var(--font-mono); color: var(--accent);
  transition: transform .15s ease;
}
.pub-link:hover .pub-arrow { transform: translate(2px, -2px); }

.hero { padding: clamp(3rem, 10vw, 6rem) 0 clamp(2rem, 6vw, 4rem); }
.kicker { margin: 0 0 1.25rem; font-family: var(--font-mono);
  font-size: .85rem; letter-spacing: .04em; color: var(--fg-dim);
  text-transform: uppercase; }
.hero h1 { margin: 0 0 1.25rem; font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.1; letter-spacing: -.025em; font-weight: 700; }
.accent { background: linear-gradient(110deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { margin: 0 0 2rem; max-width: 56ch; color: var(--fg-dim); font-size: 1.1rem; }

.cta, .links { display: flex; flex-wrap: wrap; gap: .75rem; }
.btn { display: inline-flex; align-items: center; gap: .5rem;
  padding: .7rem 1.1rem; border-radius: 999px;
  font-weight: 500; font-size: .95rem; border: 1px solid var(--line);
  transition: transform .15s ease, background .15s ease,
    border-color .15s ease, color .15s ease; }
.btn:hover { transform: translateY(-1px); border-bottom-color: var(--line); }
.btn.primary { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: #0a0a0b; }
.btn.ghost { color: var(--fg); }
.btn.ghost:hover { border-color: var(--fg-dim); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.card { background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.25rem;
  transition: transform .2s ease, border-color .2s ease; }
.card:hover { transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent) 50%, var(--line)); }
.card h3 { margin: 0 0 .25rem; font-size: 1.05rem; letter-spacing: -.01em; }
.card .role { margin: 0 0 .65rem; font-family: var(--font-mono); font-size: .78rem;
  letter-spacing: .02em; color: var(--fg-dim); text-transform: uppercase; }
.card p { margin: 0 0 .75rem; color: var(--fg-dim); font-size: .95rem; }

/* Clickable card (button reset + tap icon + accent ring on hover) */
.card-btn {
  font: inherit; color: inherit; text-align: left; cursor: pointer;
  width: 100%; position: relative; appearance: none;
}
.card-btn:focus-visible {
  outline: none;
  border-color: color-mix(in oklab, var(--accent) 60%, var(--line));
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 25%, transparent);
}
.card-tap {
  position: absolute; top: .85rem; right: .9rem;
  width: 26px; height: 26px; border-radius: 8px;
  display: grid; place-items: center;
  background: color-mix(in oklab, var(--fg) 6%, transparent);
  color: var(--fg-dim); font-size: 13px;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.card-btn:hover .card-tap {
  background: color-mix(in oklab, var(--accent) 30%, transparent);
  color: var(--fg);
  transform: rotate(45deg) scale(1.05);
}
.card-btn .tags { padding-right: 2rem; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; }
.tags span { font-family: var(--font-mono); font-size: .72rem;
  padding: .25rem .55rem; border-radius: 999px;
  background: color-mix(in oklab, var(--fg) 8%, transparent);
  color: var(--fg-dim); }

/* ---- Experience modal ---- */
.exp-modal {
  position: fixed; inset: 0; z-index: 50;
  display: flex; align-items: center; justify-content: center;
  padding: clamp(.5rem, 3vw, 2rem);
}
/* Critical: respect the [hidden] attribute (otherwise the invisible
   backdrop intercepts every click on the page). */
.exp-modal[hidden] { display: none !important; }
.exp-backdrop {
  position: absolute; inset: 0;
  background: color-mix(in oklab, #000 60%, transparent);
  backdrop-filter: blur(4px);
  opacity: 0; transition: opacity .2s ease;
  cursor: pointer;
}
.exp-modal.is-open .exp-backdrop { opacity: 1; }

.exp-dialog {
  position: relative; z-index: 1;
  background: var(--bg-elev);
  border: 1.5px solid color-mix(in oklab, var(--accent) 55%, var(--line));
  border-radius: 16px;
  max-width: 560px; width: 100%;
  max-height: calc(100vh - 4rem);
  overflow: auto;
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent) 30%, transparent),
    0 0 40px -5px color-mix(in oklab, var(--accent) 25%, transparent),
    0 30px 80px -10px rgba(0,0,0,.6);
  transform: translateY(20px) scale(.97);
  opacity: 0;
  transition: transform .25s cubic-bezier(.2,.9,.3,1.2), opacity .2s ease;
}
.exp-modal.is-open .exp-dialog { opacity: 1; transform: translateY(0) scale(1); }
.exp-dialog:focus { outline: none; }

.exp-close {
  position: absolute; top: .8rem; right: .8rem; z-index: 2;
  width: 34px; height: 34px; border-radius: 50%;
  background: color-mix(in oklab, var(--fg) 8%, transparent);
  color: var(--fg);
  border: 1px solid color-mix(in oklab, var(--accent) 40%, var(--line));
  display: grid; place-items: center; cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}
.exp-close svg { width: 18px; height: 18px; }
.exp-close:hover { background: color-mix(in oklab, var(--accent) 30%, transparent); transform: rotate(90deg); }

.exp-image {
  aspect-ratio: 16 / 6;
  display: grid; place-items: center;
  gap: .4rem;
  color: var(--fg-dim);
  background:
    linear-gradient(135deg,
      color-mix(in oklab, var(--accent) 8%, var(--bg)) 0%,
      color-mix(in oklab, var(--accent-2) 8%, var(--bg)) 100%);
  background-size: cover; background-position: center;
  border-bottom: 1px solid color-mix(in oklab, var(--accent) 30%, var(--line));
  position: relative;
}
.exp-image::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(color-mix(in oklab, var(--fg) 8%, transparent) 1px, transparent 1px);
  background-size: 14px 14px;
  opacity: .5; pointer-events: none;
}
.exp-image svg { width: 36px; height: 36px; position: relative; z-index: 1; }
.exp-image span { position: relative; z-index: 1;
  font-family: var(--font-mono); font-size: .76rem; letter-spacing: .04em; }
.exp-image.has-image::before { display: none; }
.exp-image.has-image svg, .exp-image.has-image span { display: none; }

.exp-body { padding: 1.25rem 1.4rem 1.5rem; }
.exp-body .kicker { margin-bottom: .45rem; font-size: .72rem; }
.exp-body h3 {
  margin: 0 0 .2rem; font-size: 1.3rem;
  letter-spacing: -.018em; line-height: 1.22;
}
.exp-role {
  margin: 0 0 .9rem;
  font-family: var(--font-mono); font-size: .78rem;
  letter-spacing: .03em; color: var(--accent); text-transform: uppercase;
}
.exp-summary { margin: 0 0 1rem; color: var(--fg); line-height: 1.55; font-size: .96rem; }
.exp-highlights {
  list-style: none; padding: 0; margin: 0 0 1.1rem;
  display: flex; flex-direction: column; gap: .5rem;
}
.exp-highlights li {
  color: var(--fg-dim); padding-left: 1.25rem; position: relative;
  line-height: 1.5; font-size: .92rem;
}
.exp-highlights li::before {
  content: "›"; position: absolute; left: 0; color: var(--accent);
  font-family: var(--font-mono); font-weight: 700;
}
.exp-body .tags { display: flex; flex-wrap: wrap; gap: .4rem; margin: 0 0 1.1rem; }
.exp-body .tags span {
  font-family: var(--font-mono); font-size: .72rem;
  padding: .25rem .55rem; border-radius: 999px;
  background: color-mix(in oklab, var(--fg) 8%, transparent);
  color: var(--fg-dim);
}
.exp-links { display: flex; flex-wrap: wrap; gap: .5rem; }
.exp-links .btn { padding: .55rem .95rem; font-size: .88rem; }

@media (prefers-reduced-motion: reduce) {
  .exp-dialog, .exp-backdrop { transition: none; transform: none; }
}

/* ---- Glossary tooltip ---- */
.def {
  display: inline;
  font-style: normal;
  font-weight: 600;
  color: var(--fg);
  background: color-mix(in oklab, var(--accent) 12%, transparent);
  border-bottom: 1px dotted color-mix(in oklab, var(--accent) 70%, transparent);
  padding: 0 .15rem;
  border-radius: 3px;
  cursor: help;
  transition: background .15s ease, border-bottom-color .15s ease;
}
.def:hover,
.def:focus-visible {
  outline: none;
  background: color-mix(in oklab, var(--accent) 22%, transparent);
  border-bottom-color: var(--accent);
}

.def-tooltip {
  position: absolute; z-index: 100;
  max-width: 320px;
  padding: .85rem .95rem .9rem;
  background: var(--bg-elev);
  color: var(--fg);
  border: 1px solid color-mix(in oklab, var(--accent) 55%, var(--line));
  border-radius: 12px;
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--accent) 20%, transparent),
    0 18px 40px -10px rgba(0,0,0,.55);
  font-size: .88rem; line-height: 1.55;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .15s ease, transform .15s ease;
  pointer-events: none;
}
.def-tooltip.is-open {
  opacity: 1; transform: translateY(0);
  pointer-events: auto;
}
.def-tooltip[hidden] { display: none; }
.def-tooltip h4 {
  margin: 0 0 .35rem;
  font-size: .94rem;
  color: var(--fg);
  font-weight: 600;
  letter-spacing: -.005em;
}
.def-tooltip p {
  margin: 0 0 .55rem;
  color: var(--fg-dim);
}
.def-tooltip a {
  display: inline-flex; align-items: center; gap: .25rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--accent);
  border-bottom: none;
}
.def-tooltip a:hover { text-decoration: underline; }

/* ---- Featured in / press strip ---- */
.press {
  margin: clamp(2rem, 5vw, 3rem) 0 clamp(2rem, 5vw, 3rem);
}
.press-label {
  margin: 0 0 .75rem;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent);
}
.press-card {
  display: block;
  padding: 1.3rem 1.4rem 1.4rem;
  border-radius: 14px;
  text-decoration: none; color: inherit;
  background:
    linear-gradient(135deg,
      color-mix(in oklab, var(--accent) 14%, var(--bg-elev)) 0%,
      var(--bg-elev) 60%);
  border: 1px solid color-mix(in oklab, var(--accent) 35%, var(--line));
  position: relative; overflow: hidden;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.press-card::before {
  content: ""; position: absolute; inset: -50% -30% auto auto;
  width: 70%; aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in oklab, var(--accent) 30%, transparent) 0%, transparent 70%);
  pointer-events: none;
}
.press-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent) 65%, var(--line));
  box-shadow: 0 20px 40px -15px color-mix(in oklab, var(--accent) 30%, transparent);
}
.press-meta {
  display: flex; justify-content: space-between; align-items: center;
  gap: .5rem; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .04em; color: var(--fg-dim);
  margin: 0 0 .6rem;
}
.press-pub { color: var(--fg); }
.press-title {
  margin: 0 0 .55rem; font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  line-height: 1.3; letter-spacing: -.01em;
}
.press-blurb { margin: 0 0 .95rem; color: var(--fg-dim); line-height: 1.55; max-width: 60ch; }
.press-cta {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .45rem .85rem;
  border-radius: 999px;
  font-family: var(--font-mono); font-size: .76rem;
  background: color-mix(in oklab, var(--accent) 80%, var(--bg));
  color: #0a0a0a;
  transition: background .15s ease, transform .15s ease;
}
.press-card:hover .press-cta { transform: translateX(2px); }

/* ---- Writing list (home strip + blog index) ---- */
.writing-list {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  margin: 1rem 0 1.5rem;
}
.writing-card {
  display: flex; flex-direction: column; gap: .55rem;
  padding: 1.2rem 1.3rem 1.3rem;
  border-radius: 12px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  text-decoration: none; color: inherit;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.writing-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in oklab, var(--accent) 55%, var(--line));
  background: color-mix(in oklab, var(--accent) 6%, var(--bg-elev));
}
.writing-card-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .04em; color: var(--fg-dim);
}
.writing-card-arrow { color: var(--accent); transition: transform .15s ease; }
.writing-card:hover .writing-card-arrow { transform: translate(3px, -2px); }
.writing-card-title {
  margin: 0; font-size: 1.05rem; line-height: 1.3; letter-spacing: -.01em;
}
.writing-card-excerpt { margin: 0; color: var(--fg-dim); font-size: .92rem; line-height: 1.5; }
.writing-card-tags { display: flex; flex-wrap: wrap; gap: .35rem; margin-top: .25rem; }
.writing-card-tags .chip {
  font-family: var(--font-mono); font-size: .68rem;
  padding: .18rem .5rem; border-radius: 999px;
  background: color-mix(in oklab, var(--fg) 8%, transparent);
  color: var(--fg-dim);
  border: none;
}
.writing-skel {
  min-height: 140px;
  background:
    linear-gradient(110deg,
      var(--bg-elev) 30%,
      color-mix(in oklab, var(--fg) 6%, var(--bg-elev)) 50%,
      var(--bg-elev) 70%);
  background-size: 200% 100%;
  animation: skel 1.4s ease-in-out infinite;
  pointer-events: none;
}
@keyframes skel { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* ---- Blog index page ---- */
.blog-page { /* inherits max-width + padding from `main` */ }
.blog-head { margin-bottom: 2rem; }
.blog-head h1 {
  margin: .25rem 0 .75rem;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15; letter-spacing: -.022em;
}
.blog-head .lede { color: var(--fg-dim); font-size: 1.05rem; max-width: 60ch; }
.blog-list { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ---- Single post page ---- */
.post-page { max-width: 760px !important; }
.post-head {
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.5rem; margin-bottom: 2rem;
}
.post-head .kicker { font-size: .8rem; }
.post-head h1 {
  margin: .35rem 0 .75rem;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  line-height: 1.18; letter-spacing: -.02em;
}
.post-tags { display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; }
.post-tags .chip {
  font-family: var(--font-mono); font-size: .7rem;
  padding: .2rem .55rem; border-radius: 999px;
  background: color-mix(in oklab, var(--fg) 8%, transparent);
  color: var(--fg-dim);
}
.post-body { font-size: 1rem; line-height: 1.7; }
.post-body p { color: var(--fg); }
.post-foot {
  display: flex; gap: .75rem; justify-content: space-between;
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
  flex-wrap: wrap;
}

/* Active nav link styling */
.nav nav a.is-active { color: var(--accent); }

/* ---- projects grid (home) ---- */
.proj-grid {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}
.proj-card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem 1rem;
  display: flex; flex-direction: column; gap: .65rem;
  text-decoration: none; color: inherit;
  border-bottom-color: var(--line);
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
  position: relative; overflow: hidden;
}
.proj-card::before {
  content: ""; position: absolute; inset: -1px;
  border-radius: inherit; padding: 1px;
  background: linear-gradient(135deg, transparent 0%,
    color-mix(in oklab, var(--accent) 50%, transparent) 50%, transparent 100%);
  -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .25s ease; pointer-events: none;
}
.proj-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in oklab, var(--accent) 30%, var(--line));
  border-bottom-color: color-mix(in oklab, var(--accent) 30%, var(--line));
}
.proj-card:hover::before { opacity: 1; }
.proj-card-head {
  display: flex; justify-content: space-between; align-items: flex-start; gap: .5rem;
}
.proj-card-title {
  margin: 0; font-size: 1.05rem; letter-spacing: -.01em; line-height: 1.25;
}
.proj-card-arrow { color: var(--fg-dim); transition: transform .2s ease, color .2s ease; flex-shrink: 0; }
.proj-card:hover .proj-card-arrow { color: var(--accent); transform: translate(2px, -2px); }
.proj-card-desc {
  margin: 0; color: var(--fg-dim); font-size: .93rem; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.proj-card-meta { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: auto; }

.chip {
  display: inline-flex; align-items: center; gap: .35rem;
  font-family: var(--font-mono); font-size: .72rem;
  padding: .25rem .55rem; border-radius: 999px;
  background: color-mix(in oklab, var(--fg) 8%, transparent);
  color: var(--fg-dim);
}
.chip-dim { opacity: .8; }
.chip-lang { color: var(--fg); }
.lang-dot {
  display: inline-block; width: 10px; height: 10px; border-radius: 50%;
  flex-shrink: 0; box-shadow: 0 0 0 1px color-mix(in oklab, var(--fg) 12%, transparent);
}

/* skeletons */
.proj-skel {
  min-height: 168px;
  background: linear-gradient(120deg, var(--bg-elev) 30%,
    color-mix(in oklab, var(--fg) 5%, var(--bg-elev)) 50%, var(--bg-elev) 70%);
  background-size: 200% 100%;
  animation: rs-shimmer 1.4s ease-in-out infinite;
  pointer-events: none;
}
.proj-skel::before { display: none; }
@keyframes rs-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

.proj-foot { margin-top: 1.5rem; }

/* ---- project detail page ---- */
.proj-page { max-width: 1100px !important; padding-top: 2rem !important; }
.proj-back { margin: 0 0 1rem; }
.proj-back a { color: var(--fg-dim); font-family: var(--font-mono); font-size: .85rem; border-bottom: none; }
.proj-back a:hover { color: var(--fg); }
.proj-hero { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--line); }
.proj-hero h1 {
  margin: 0 0 .75rem; font-size: clamp(1.6rem, 4vw, 2.4rem);
  letter-spacing: -.025em; line-height: 1.15; word-break: break-word;
}
.proj-hero .lede { font-size: 1.05rem; margin-bottom: 1.25rem; }
.proj-meta { display: flex; flex-wrap: wrap; gap: .45rem; }

.proj-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 2rem;
}
@media (max-width: 860px) {
  .proj-layout { grid-template-columns: 1fr; }
}
.proj-readme { min-width: 0; }

.proj-side { display: flex; flex-direction: column; gap: 1rem; }
.side-card {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.1rem;
  display: flex; flex-direction: column; gap: .85rem;
  position: sticky; top: 1rem; height: fit-content;
}
@media (max-width: 860px) { .side-card { position: static; } }
.side-btn { justify-content: center; }
.side-clone { display: flex; flex-direction: column; gap: .35rem; }
.side-label {
  margin: 0; font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .05em; text-transform: uppercase; color: var(--fg-dim);
}
.side-clone code {
  font-family: var(--font-mono); font-size: .72rem; color: var(--fg);
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: .5rem .65rem;
  display: block;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-wrap: anywhere;
  line-height: 1.45;
  text-align: center;
  width: 100%;
}
.side-clone-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: .5rem;
}
.side-clone-head .side-label { margin: 0; }
.copy-btn {
  display: inline-flex; align-items: center; gap: .35rem;
  font-family: var(--font-mono); font-size: .72rem;
  padding: 0 .65rem;
  background: var(--bg);
  color: var(--fg-dim);
  border: 1px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  transition: color .15s ease, background .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.copy-btn:hover {
  color: var(--fg);
  background: color-mix(in oklab, var(--accent) 12%, var(--bg));
  border-color: color-mix(in oklab, var(--accent) 50%, var(--line));
}
.copy-btn .check-icon { display: none; }
.copy-btn.is-copied {
  color: var(--accent);
  border-color: color-mix(in oklab, var(--accent) 70%, var(--line));
  background: color-mix(in oklab, var(--accent) 18%, var(--bg));
}
.copy-btn.is-copied .copy-icon { display: none; }
.copy-btn.is-copied .check-icon { display: inline; }

/* No-README state on project detail page */
.proj-noreadme {
  padding: 2rem 0;
}
.proj-noreadme-tag {
  display: inline-block;
  font-family: var(--font-mono); font-size: .68rem;
  letter-spacing: .08em; text-transform: uppercase;
  padding: .25rem .55rem; border-radius: 999px;
  background: color-mix(in oklab, var(--accent) 18%, var(--bg));
  color: var(--accent);
  border: 1px solid color-mix(in oklab, var(--accent) 40%, var(--line));
  margin: 0 0 1rem;
}
.proj-noreadme h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.8rem);
  margin: 0 0 .75rem;
  letter-spacing: -.018em;
}
.proj-noreadme p { color: var(--fg-dim); line-height: 1.6; margin: 0 0 1rem; }
.proj-noreadme .btn { display: inline-flex; }
.proj-noreadme h3 {
  margin: 1.5rem 0 .75rem;
  font-size: 1rem;
  font-family: var(--font-mono); font-weight: 500;
  letter-spacing: .04em; text-transform: uppercase;
  color: var(--fg-dim);
}
.proj-files {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: .35rem .75rem;
}
.proj-files a {
  display: flex; align-items: center; gap: .5rem;
  padding: .45rem .65rem; border-radius: 8px;
  color: var(--fg-dim); text-decoration: none;
  background: color-mix(in oklab, var(--fg) 4%, transparent);
  border: 1px solid transparent;
  font-family: var(--font-mono); font-size: .82rem;
  transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.proj-files a:hover {
  color: var(--fg);
  background: color-mix(in oklab, var(--accent) 12%, var(--bg));
  border-color: color-mix(in oklab, var(--accent) 40%, var(--line));
}
.side-stats {
  margin: 0; display: grid; grid-template-columns: auto 1fr;
  gap: .35rem .85rem; font-size: .88rem;
}
.side-stats dt { color: var(--fg-dim); }
.side-stats dd { margin: 0; color: var(--fg); }
.lang-bar {
  display: flex; height: 8px; border-radius: 999px; overflow: hidden;
  background: var(--bg); border: 1px solid var(--line);
}
.lang-seg { height: 100%; transition: filter .15s; }
.lang-seg:hover { filter: brightness(1.2); }
.lang-list {
  list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .25rem;
}
.lang-list li {
  display: flex; align-items: center; gap: .5rem; font-size: .82rem; color: var(--fg);
}
.lang-pct { margin-left: auto; color: var(--fg-dim); font-family: var(--font-mono); font-size: .76rem; }

/* loading dots */
.proj-loading {
  display: flex; gap: .4rem; justify-content: center; padding: 4rem 0;
}
.rs-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--fg-dim);
  animation: rs-bounce 1.2s infinite ease-in-out both;
}
.rs-dot:nth-child(2) { animation-delay: .15s; }
.rs-dot:nth-child(3) { animation-delay: .3s; }
@keyframes rs-bounce {
  0%, 80%, 100% { transform: scale(.3); opacity: .35; }
  40% { transform: scale(1); opacity: 1; }
}

/* ---- rendered GitHub README typography ---- */
.rs-readme { color: var(--fg); line-height: 1.65; word-wrap: break-word; }
.rs-readme h1, .rs-readme h2, .rs-readme h3, .rs-readme h4 {
  letter-spacing: -.015em; margin: 2rem 0 .85rem; line-height: 1.25;
}
.rs-readme h1 { font-size: 1.6rem; padding-bottom: .35rem; border-bottom: 1px solid var(--line); }
.rs-readme h2 { font-size: 1.3rem; padding-bottom: .25rem; border-bottom: 1px solid var(--line); }
.rs-readme h3 { font-size: 1.1rem; }
.rs-readme h4 { font-size: 1rem; }
.rs-readme p { margin: .65rem 0 1rem; color: var(--fg); }
.rs-readme a { color: var(--accent); border-bottom: 1px solid color-mix(in oklab, var(--accent) 40%, transparent); }
.rs-readme a:hover { border-bottom-color: var(--accent); }
.rs-readme strong { color: var(--fg); font-weight: 600; }
.rs-readme em { color: var(--fg); }
.rs-readme ul, .rs-readme ol { padding-left: 1.4rem; margin: .65rem 0 1rem; }
.rs-readme li { margin: .25rem 0; }
.rs-readme li > p { margin: .25rem 0; }
.rs-readme code {
  font-family: var(--font-mono); font-size: .88em;
  background: color-mix(in oklab, var(--fg) 9%, transparent);
  padding: .15em .4em; border-radius: 6px;
}
.rs-readme pre {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 10px; padding: .9rem 1rem; overflow-x: auto;
  margin: 1rem 0;
}
.rs-readme pre code { background: none; padding: 0; font-size: .85rem; }
.rs-readme blockquote {
  margin: 1rem 0; padding: .35rem 1rem;
  border-left: 3px solid color-mix(in oklab, var(--accent) 60%, var(--line));
  color: var(--fg-dim); background: color-mix(in oklab, var(--fg) 3%, transparent);
  border-radius: 0 8px 8px 0;
}
.rs-readme table {
  width: 100%; border-collapse: collapse; margin: 1rem 0;
  font-size: .9rem; display: block; overflow-x: auto;
}
.rs-readme th, .rs-readme td {
  border: 1px solid var(--line); padding: .5rem .75rem; text-align: left;
}
.rs-readme th { background: color-mix(in oklab, var(--fg) 5%, transparent); font-weight: 600; }
.rs-readme img { max-width: 100%; height: auto; border-radius: 8px; margin: .5rem 0; }
.rs-readme hr { border: none; border-top: 1px solid var(--line); margin: 1.5rem 0; }
.rs-readme .anchor { display: none; }
.rs-readme .highlight { margin: 1rem 0; }
.rs-readme svg.octicon { display: none; }

/* ---- contact card ---- */
.rs-card {
  margin-top: 1.75rem;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
}

/* tabs */
.rs-tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklab, var(--fg) 3%, transparent);
}
.rs-tab {
  flex: 1; background: transparent; color: var(--fg-dim);
  border: none; border-bottom: 2px solid transparent;
  padding: 1rem 1.25rem; font: inherit; font-weight: 500;
  letter-spacing: -.01em; cursor: pointer; text-align: left;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.rs-tab:hover { color: var(--fg); }
.rs-tab.is-active {
  color: var(--fg);
  border-bottom-color: var(--accent);
  background: var(--bg-elev);
}

#contact-form { padding: 1.5rem clamp(1rem, 3vw, 1.5rem); display: flex; flex-direction: column; gap: 1rem; }

.rs-fields {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
@media (max-width: 560px) { .rs-fields { grid-template-columns: 1fr; } }

.rs-field { display: flex; flex-direction: column; gap: .4rem; min-width: 0; }
.rs-field--full { grid-column: 1 / -1; }

.rs-label {
  font-size: .78rem; font-family: var(--font-mono);
  letter-spacing: .04em; text-transform: uppercase; color: var(--fg-dim);
}
.rs-label--block { display: block; margin: 0 0 .65rem; }
.rs-opt { text-transform: none; letter-spacing: 0; opacity: .75; font-family: var(--font-sans); }

.rs-input {
  font: inherit; color: var(--fg); width: 100%;
  background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px;
  padding: .72rem .9rem;
  transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
}
.rs-input::placeholder { color: var(--fg-dim); opacity: .7; }
.rs-input:focus {
  outline: none;
  border-color: color-mix(in oklab, var(--accent) 70%, var(--line));
  background: color-mix(in oklab, var(--bg) 92%, var(--accent) 8%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 18%, transparent);
}
.rs-textarea { resize: vertical; min-height: 110px; line-height: 1.55; }

.hp {
  position: absolute !important; left: -9999px !important; top: -9999px !important;
  width: 1px !important; height: 1px !important; opacity: 0 !important;
}

/* time-slot grid */
.rs-slots { padding: .25rem 0 .25rem; }
.rs-slot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: .5rem;
}
.rs-slot {
  display: flex; flex-direction: column; align-items: flex-start; gap: .15rem;
  text-align: left;
  background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px;
  padding: .55rem .75rem; cursor: pointer; font: inherit; color: var(--fg);
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.rs-slot:hover { transform: translateY(-1px); border-color: var(--fg-dim); }
.rs-slot.is-selected {
  border-color: var(--accent);
  background: color-mix(in oklab, var(--accent) 14%, var(--bg));
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 18%, transparent);
}
.rs-slot-day { font-size: .78rem; color: var(--fg-dim); font-family: var(--font-mono); letter-spacing: .03em; }
.rs-slot-time { font-size: .95rem; font-weight: 600; }
.rs-slot-hint { color: var(--fg-dim); font-size: .85rem; margin: .65rem 0 0; }

/* footer of the card */
.rs-foot {
  display: flex; flex-wrap: wrap; gap: .75rem; align-items: center;
  margin-top: .25rem;
}
.rs-foot .btn { padding: .68rem 1.1rem; }
.send-spinner { display: inline-block; letter-spacing: .15em;
  animation: rs-pulse 1s ease-in-out infinite; }
@keyframes rs-pulse { 0%, 100% { opacity: .3 } 50% { opacity: 1 } }
.rs-status { margin: 0 0 0 auto; font-size: .9rem; min-height: 1.2em; color: var(--fg-dim); }
.rs-status.ok { color: color-mix(in oklab, var(--accent-2) 80%, var(--fg)); }
.rs-status.err { color: #ff7676; }
@media (max-width: 560px) { .rs-status { margin-left: 0; width: 100%; } }

.foot { max-width: var(--maxw); margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 2rem) 3rem;
  display: flex; flex-wrap: wrap; gap: .5rem;
  color: var(--fg-dim); font-size: .85rem; border-top: 1px solid var(--line); }
.foot .dot { opacity: .5; }

@media (max-width: 480px) {
  .nav nav a { display: none; }
  .nav nav a:last-of-type { display: inline; }
  .brand-name { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important;
      scroll-behavior: auto !important; }
}