:root {
  --bg: #0b0e14;
  --border: #252c38;
  --text: #dce2ea;
  --muted: #8b95a7;
  --cyan: #22d3ee;
  --violet: #a78bfa;
  --pink: #ff5fb8;
  --lime: #a3e635;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    radial-gradient(55rem 35rem at 0% -10%, rgb(34 211 238 / 0.13), transparent 60%),
    radial-gradient(45rem 35rem at 100% 0%, rgb(255 95 184 / 0.10), transparent 60%),
    radial-gradient(50rem 30rem at 50% 110%, rgb(167 139 250 / 0.10), transparent 60%);
  background-attachment: fixed;
  color: var(--text);
  font: 16px/1.6 var(--sans);
}

a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

.wrap {
  max-width: 58rem;
  margin: 0 auto;
  padding: clamp(3rem, 12vh, 7.5rem) 1rem 2.5rem;
}

/* Hero */

.prompt {
  margin: 0 0 1.1rem;
  font: 0.9rem/1.4 var(--mono);
  color: var(--muted);
}
.prompt .host { color: var(--lime); }
.prompt .path { color: var(--cyan); }

.cursor {
  display: inline-block;
  width: 0.6em;
  height: 1.15em;
  margin-left: 0.35em;
  vertical-align: -0.22em;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

h1 {
  width: fit-content;
  margin: 0 0 1.25rem;
  font-size: clamp(2.75rem, 9vw, 5rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.035em;
  background: linear-gradient(90deg, var(--lime), #2de2c8 55%, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 26px rgb(45 226 200 / 0.22));
}

.lede {
  max-width: 40rem;
  margin: 0 0 2rem;
  font-size: clamp(1.05rem, 2.3vw, 1.25rem);
}

.now {
  max-width: 40rem;
  margin: -0.75rem 0 2.25rem;
  color: var(--muted);
}

.links { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.links a {
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgb(255 255 255 / 0.03);
  color: var(--text);
  font: 0.9rem/1.2 var(--mono);
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s, box-shadow 0.2s;
}
.links a::after { content: " ↗"; color: var(--muted); }
.links a:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 18px rgb(34 211 238 / 0.35);
}
.links a.internal { border-color: color-mix(in srgb, var(--lime) 55%, transparent); color: var(--lime); }
.links a.internal::after { content: " →"; color: inherit; }
.links a.internal:hover { border-color: var(--lime); box-shadow: 0 0 18px rgb(163 230 53 / 0.3); }

/* Home: a single centred hero with the footer at the bottom */

.home .wrap {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  padding-top: 2.5rem;
}
.home .hero { margin-block: auto; }
.home footer { margin-top: 3rem; }

/* About page header */

.back {
  display: inline-block;
  margin-bottom: 2.25rem;
  color: var(--muted);
  font: 0.85rem/1.4 var(--mono);
  text-decoration: none;
}
.back:hover { color: var(--cyan); }
.hero.page h1 { font-size: clamp(2.5rem, 7vw, 3.75rem); }

/* Sections */

section { margin-top: clamp(3.5rem, 11vh, 6rem); }

h2 {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin: 0 0 1.25rem;
  color: var(--muted);
  font: 500 0.8rem/1 var(--mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}

.timeline {
  display: grid;
  gap: 1.75rem;
  margin: 0 0 2.25rem;
  padding: 0;
  list-style: none;
}
.timeline li {
  --c: var(--muted);
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 0.25rem 1.5rem;
}
.timeline li.lime { --c: var(--lime); }
.timeline li.cyan { --c: var(--cyan); }
.timeline .when { padding-top: 0.2rem; color: var(--c); font: 0.8rem/1.6 var(--mono); }
.timeline li > div {
  position: relative;
  max-width: 44rem;
  padding-left: 1.4rem;
  border-left: 1px solid var(--border);
}
.timeline li > div::before {
  content: "";
  position: absolute;
  top: 0.45rem;
  left: -5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c);
  box-shadow: 0 0 10px var(--c);
}
.timeline h3 { margin: 0 0 0.4rem; color: #fff; font-size: 1.2rem; line-height: 1.3; }
.timeline h3 span { display: inline-block; margin-left: 0.4rem; color: var(--c); font: 0.8rem/1.3 var(--mono); }
.timeline p { margin: 0; font-size: 1.02rem; }
.timeline li.past p { color: var(--muted); }

@media (max-width: 40rem) {
  .timeline li { grid-template-columns: 1fr; }
  .timeline .when { padding-left: 1.4rem; }
  .timeline h3 span { display: block; margin: 0.2rem 0 0; }
}

.prose { max-width: 44rem; }
.prose p { margin: 0 0 1rem; font-size: 1.05rem; }
.prose p:last-child { margin-bottom: 0; }

/* Things I build */

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tile { --c: var(--cyan); }
.violet { --c: var(--violet); }
.pink { --c: var(--pink); }
.lime { --c: var(--lime); }

.tile {
  position: relative;
  padding: 1.3rem 1.25rem 1.35rem;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, rgb(255 255 255 / 0.04), rgb(255 255 255 / 0.01));
}
.tile::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--c);
  box-shadow: 0 0 14px var(--c);
}
.tile .kicker { color: var(--c); font: 0.75rem/1.4 var(--mono); letter-spacing: 0.04em; }
.tile h3 { margin: 0.35rem 0 0.45rem; color: #fff; font-size: 1.2rem; line-height: 1.25; }
.tile p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.tile.wide { grid-column: 1 / -1; }
.tile.wide p { max-width: 52rem; }
.tile h3 a { color: inherit; text-decoration: none; }
.tile h3 a::after { content: " ↗"; color: var(--muted); font-size: 0.85em; }
.tile h3 a:hover { color: var(--c); }

/* Blog */

.hero.page h1.post-title { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.12; }
.post-meta { margin: 0; color: var(--muted); font: 0.85rem/1.4 var(--mono); }

.post { max-width: 44rem; margin-top: clamp(2.5rem, 7vh, 4rem); }
.post p, .post li { font-size: 1.075rem; line-height: 1.75; }
.post p { margin: 0 0 1.2rem; }
.post ul, .post ol { margin: 0 0 1.4rem; padding-left: 1.4rem; }
.post li { margin-bottom: 0.5rem; }
.post li::marker { color: var(--lime); }
/* A closing note written as a single italic paragraph */
.post > p:last-child:has(> em:only-child) {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
}
.post strong { color: #fff; }
.post a { color: var(--cyan); }

.post h2, .posts h2 {
  display: block;
  color: #fff;
  font: 700 1.45rem/1.3 var(--sans);
  letter-spacing: -0.01em;
  text-transform: none;
}
.post h2 { margin: 2.75rem 0 0.9rem; }
.post h2::after, .posts h2::after { content: none; }
.post h3 { margin: 2rem 0 0.6rem; color: #fff; font-size: 1.15rem; }

.post code {
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: rgb(255 255 255 / 0.07);
  color: var(--lime);
  font: 0.9em var(--mono);
}
.post pre {
  margin: 0 0 1.6rem;
  padding: 1rem 1.2rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-left: 2px solid var(--cyan);
  border-radius: 10px;
  background: rgb(0 0 0 / 0.35);
}
.post pre code { padding: 0; background: none; color: var(--text); font: 0.85rem/1.65 var(--mono); }

.posts { max-width: 44rem; margin: clamp(2.5rem, 7vh, 4rem) 0 0; padding: 0; list-style: none; }
.posts li { padding: 1.5rem 0; border-top: 1px solid var(--border); }
.posts li:last-child { border-bottom: 1px solid var(--border); }
.posts time { color: var(--lime); font: 0.8rem/1.4 var(--mono); }
.posts h2 { margin: 0.35rem 0 0.5rem; }
.posts h2 a { color: inherit; text-decoration: none; }
.posts h2 a:hover { color: var(--cyan); }
.posts p { margin: 0; color: var(--muted); }

/* Contact */

.contact { max-width: 36rem; margin-top: clamp(2.5rem, 7vh, 4rem); }
.contact-intro { margin: 0 0 1.75rem; font-size: 1.075rem; }

.form-status {
  margin: 0 0 1.5rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--c, var(--cyan));
  border-radius: 8px;
  background: rgb(255 255 255 / 0.03);
}
.form-status.ok { --c: var(--lime); }
.form-status.error { --c: var(--pink); }

.contact-form { display: grid; gap: 1.1rem; }
.contact-form label { display: grid; gap: 0.4rem; }
.contact-form label span { color: var(--muted); font: 0.8rem/1.4 var(--mono); letter-spacing: 0.04em; }
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgb(0 0 0 / 0.3);
  color: var(--text);
  font: 1rem/1.5 var(--sans);
}
.contact-form textarea { resize: vertical; min-height: 9rem; }
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--cyan);
  outline: none;
  box-shadow: 0 0 0 3px rgb(34 211 238 / 0.18);
}
.contact-form button {
  justify-self: start;
  padding: 0.7rem 1.4rem;
  border: 1px solid color-mix(in srgb, var(--lime) 60%, transparent);
  border-radius: 999px;
  background: rgb(163 230 53 / 0.08);
  color: var(--lime);
  font: 0.95rem/1.2 var(--mono);
  cursor: pointer;
}
.contact-form button:hover { border-color: var(--lime); box-shadow: 0 0 18px rgb(163 230 53 / 0.3); }
.contact-form button:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }

/* Honeypot: hidden from people, visible to naive bots */
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* Footer and 404 */

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  margin-top: 4.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font: 0.8rem/1.4 var(--mono);
}

.notfound a { color: var(--cyan); }

@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; }
  .links a { transition: none; }
}