:root {
  --flexoki-black: #100f0f;
  --flexoki-paper: #fffcf0;
  --flexoki-50: #f2f0e5;
  --flexoki-100: #e6e4d9;
  --flexoki-150: #dad8ce;
  --flexoki-200: #cecdc3;
  --flexoki-300: #b7b5ac;
  --flexoki-500: #878580;
  --flexoki-600: #6f6e69;
  --flexoki-700: #575653;
  --flexoki-800: #403e3c;
  --flexoki-850: #343331;
  --flexoki-900: #282726;
  --flexoki-950: #1c1b1a;
  --flexoki-cyan-50: #ddf1e4;
  --flexoki-cyan-400: #3aa99f;
  --flexoki-cyan-600: #24837b;
  --flexoki-cyan-950: #101f1d;

  --bg: var(--flexoki-paper);
  --bg-rgb: 255, 252, 240;
  --text: var(--flexoki-black);
  --muted: var(--flexoki-600);
  --faint: var(--flexoki-300);
  --ui: var(--flexoki-100);
  --ui-hover: var(--flexoki-150);
  --action: var(--flexoki-cyan-600);
  --bg-hover: var(--flexoki-cyan-50);
  --toggle-track: var(--flexoki-100);
  --toggle-knob: var(--flexoki-black);

  --font: "IBM Plex Sans", "Helvetica Neue", Helvetica, sans-serif;
  --wrap: 37em;
  --line-height: 1.5;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html[data-theme="dark"] {
  --bg: var(--flexoki-black);
  --bg-rgb: 16, 15, 15;
  --text: var(--flexoki-200);
  --muted: var(--flexoki-500);
  --faint: var(--flexoki-700);
  --ui: var(--flexoki-900);
  --ui-hover: var(--flexoki-850);
  --action: var(--flexoki-cyan-400);
  --bg-hover: var(--flexoki-cyan-950);
  --toggle-track: var(--flexoki-900);
  --toggle-knob: var(--flexoki-200);
}

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

html {
  color-scheme: light;
}

html[data-theme="dark"] {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: calc(1.05rem + 0.15vw);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
  padding: 2rem 0 6rem;
}

a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--action);
}

a:focus-visible {
  outline: none;
  background: var(--bg-hover);
}

.wrap {
  width: min(100% - 2rem, var(--wrap));
  margin: 0 auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 auto 2.5rem;
  width: min(100% - 2rem, var(--wrap));
}

.brand-group {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.35rem;
  min-width: 0;
}

.brand-group a {
  text-decoration: none;
  font-weight: 400;
  color: var(--text);
}

.brand-group a:hover {
  color: var(--action);
}

.brand-group .sep {
  color: var(--muted);
  font-weight: 400;
}

.brand-group .writing-crumb {
  color: var(--muted);
  font-weight: 400;
}

.brand-group .writing-crumb:hover {
  color: var(--action);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--action);
}

.theme-toggle {
  flex-shrink: 0;
  width: 2.25rem;
  height: 1.25rem;
  padding: 0;
  border: 1px solid var(--ui);
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.theme-toggle::after {
  content: "";
  position: absolute;
  top: 1px;
  left: 1px;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  background: var(--toggle-knob);
  transition: transform 0.15s linear, background-color 0.15s linear;
}

html[data-theme="dark"] .theme-toggle::after {
  transform: translateX(0.95rem);
}

.theme-toggle:hover::after {
  background: var(--action);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--action);
  outline-offset: 3px;
}

.section-label {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.95em;
  font-weight: 400;
}

.latest-card {
  display: block;
  text-decoration: none;
  color: inherit;
  margin-bottom: 0.5rem;
}

.latest-card:hover {
  color: inherit;
}

.latest-card h2 {
  margin: 0 0 0.35rem;
  font-size: calc(1.15em + 0.25vw);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.25;
  text-decoration: none;
}

.latest-card:hover h2 {
  color: var(--action);
}

.latest-meta,
.post-meta {
  margin: 0 0 0.65rem;
  color: var(--muted);
  font-size: 0.95em;
}

.latest-excerpt {
  margin: 0;
  color: var(--muted);
}

.latest-excerpt .more {
  color: var(--text);
  text-decoration: underline;
}

.latest-card:hover .more {
  color: var(--action);
}

.rule {
  border: 0;
  height: 1px;
  margin: 2.75rem 0;
  background: var(--ui);
}

.writing-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.writing-list li {
  margin: 0 0 0.55rem;
}

.writing-list a {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.85rem;
  align-items: baseline;
  text-decoration: none;
}

.writing-list .date {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  font-size: 0.95em;
}

.writing-list .title {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.writing-list a:hover .title {
  color: var(--action);
}

/* Article pages */
article h1 {
  margin: 0 0 0.35rem;
  font-size: calc(1.35em + 0.55vw);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.prose {
  margin-top: 1.5rem;
}

.prose p {
  margin: 0 0 1.05rem;
  max-width: var(--wrap);
}

.prose h2 {
  margin: 2em 0 0.5em;
  font-size: calc(1em + 0.2vw);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

.prose ul,
.prose ol {
  margin: 0 0 1rem 0.5em;
  padding: 0.5rem 0 1rem 1em;
}

.prose li {
  padding: 0.15rem 0;
}

.prose li::marker {
  color: var(--faint);
}

.prose blockquote {
  margin: 1.5em 0;
  padding-left: 1.5em;
  border-left: 2px solid var(--text);
}

.prose blockquote p {
  margin: 0;
}

.prose hr {
  margin: calc(2em + 2vh) 0;
  border: 0;
  background: none;
  text-align: center;
  overflow: visible;
}

.prose hr::before {
  content: "•••";
  display: inline-block;
  font-size: calc(0.8em + 0.2vw);
  letter-spacing: 1.25em;
  margin-left: 0.6em;
  color: var(--faint);
  position: relative;
  top: -0.75em;
}

.site-footer {
  width: min(100% - 2rem, var(--wrap));
  margin: 4rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ui);
  color: var(--muted);
  font-size: 0.95em;
}

.site-footer a {
  color: var(--muted);
}

@media (max-width: 600px) {
  body {
    padding-top: 1.25rem;
  }

  .writing-list a {
    grid-template-columns: 4.75rem 1fr;
    gap: 0.65rem;
  }
}

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