/* ============================================================
   trentenwen — design tokens
   Inspired by Cloudflare Pages. Single-file static site.
   ============================================================ */

/* ---------- Theme initial (runs before paint) ---------- */
:root {
  /* Brand */
  --accent-100: #ff5e1f;
  --accent-200: #ff7038;
  --accent-muted: #bf4c14;
  --on-accent: #1f1f1f;

  /* Backgrounds (light) */
  --background-100: #ffffff;
  --background-200: #fdfdfc;
  --background-300: #f9f7f6;

  /* Foreground (light) */
  --foreground-100: #1a1a1a;
  --foreground-200: #2a2a2a;
  --foreground-300: #737373;

  /* Borders / decoration (light) */
  --border-100: #f0f0f0;
  --border-200: #e2e2e2;
  --decor-dots-100: #ebebeb;

  /* Type */
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo,
    Monaco, Consolas, monospace;

  --type-mono-size: 0.8125rem;
  --type-mono-leading: 1.3;
  --type-mono-tracking: 0;
  --type-mono-weight: 500;

  --type-h1-size: 2.5rem;
  --type-h1-size-md: 3.5rem;
  --type-h1-leading: 1.02;
  --type-h1-tracking: -0.025em;
  --type-h1-weight: 500;

  --type-h2-size: 1.75rem;
  --type-h2-size-md: 2.25rem;
  --type-h2-leading: 1.1;
  --type-h2-tracking: -0.025em;
  --type-h2-weight: 500;

  --type-h3-size: 1.25rem;
  --type-h3-leading: 1.2;
  --type-h3-tracking: -0.015em;
  --type-h3-weight: 500;

  --type-body-size: 0.9375rem;
  --type-body-leading: 1.6;
  --type-body-tracking: 0;
  --type-body-weight: 400;

  --type-small-size: 0.8125rem;
  --type-small-leading: 1.4;
  --type-small-tracking: 0.02em;
  --type-small-weight: 500;

  /* Layout */
  --content-max: 1200px;
  --prose-max: 720px;
  --hero-max: 1080px;
  --section-gap: clamp(72px, 9vw, 128px);
  --page-pad: clamp(20px, 4vw, 48px);

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  color-scheme: light;
}

/* ---------- Dark mode ---------- */
html.dark {
  --accent-100: #ff5e1f;
  --accent-200: #ff7038;
  --accent-muted: #ff5e1f;
  --on-accent: #fafafa;

  --background-100: #151414;
  --background-200: #191817;
  --background-300: #2a2927;

  --foreground-100: #f0e3de;
  --foreground-200: #d8cdc6;
  --foreground-300: #8a8580;

  --border-100: #f0e3de20;
  --border-200: #f0e3de33;
  --decor-dots-100: #f0e3de20;

  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent-100); color: var(--on-accent); }

/* ---------- Base ---------- */
body {
  background: var(--background-100);
  color: var(--foreground-100);
  font-family: var(--font-sans);
  font-size: var(--type-body-size);
  line-height: var(--type-body-leading);
  font-weight: var(--type-body-weight);
  transition: background-color 0.24s var(--ease-out),
              color 0.24s var(--ease-out);
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: var(--type-h1-weight);
  letter-spacing: var(--type-h1-tracking);
  line-height: var(--type-h1-leading);
  color: var(--foreground-100);
}
p { margin: 0; }

/* ---------- Typography utilities ---------- */
.text-mono {
  font-family: var(--font-mono);
  font-size: var(--type-mono-size);
  line-height: var(--type-mono-leading);
  letter-spacing: var(--type-mono-tracking);
  font-weight: var(--type-mono-weight);
  text-transform: uppercase;
}
.text-small {
  font-size: var(--type-small-size);
  line-height: var(--type-small-leading);
  letter-spacing: var(--type-small-tracking);
  font-weight: var(--type-small-weight);
}
.text-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--foreground-300);
}
.text-balance { text-wrap: balance; }
.text-pretty  { text-wrap: pretty; }

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--page-pad);
  padding-right: var(--page-pad);
}

/* ---------- Background dots (decorative) ---------- */
.bg-dots {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: radial-gradient(
    circle,
    var(--decor-dots-100) 0.75px,
    transparent 0.75px
  );
  background-size: 12px 12px;
  mask-image: linear-gradient(
    to bottom,
    black 0%,
    black 75%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to bottom,
    black 0%,
    black 75%,
    transparent 100%
  );
  opacity: 0.7;
  transition: opacity 0.24s var(--ease-out);
}

/* ---------- Decorative section frame ---------- */
.frame {
  position: relative;
}
.frame-bracket {
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--background-100);
  border: 1px solid var(--border-100);
  border-radius: 3px;
  pointer-events: none;
  z-index: 5;
  transition: background-color 0.24s var(--ease-out),
              border-color 0.24s var(--ease-out);
}
.frame-bracket.tl { top: -7px;    left: -7px;  }
.frame-bracket.tr { top: -7px;    right: -7px; }
.frame-bracket.bl { bottom: -7px; left: -7px;  }
.frame-bracket.br { bottom: -7px; right: -7px; }

/* ---------- Section header ---------- */
.section {
  position: relative;
  padding-block: var(--section-gap);
}
.section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--border-100);
}
.section-head .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--foreground-300);
  flex-shrink: 0;
}
.section-head .title {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--foreground-100);
}

/* ---------- Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px) saturate(1.4);
  -webkit-backdrop-filter: blur(12px) saturate(1.4);
  background: color-mix(in oklab, var(--background-100) 75%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 0.24s var(--ease-out),
              background-color 0.24s var(--ease-out);
}
.nav.scrolled { border-bottom-color: var(--border-100); }
.nav-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 56px;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--foreground-100);
}
.nav-logo img {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: block;
  transition: transform 0.24s var(--ease-out);
}
.nav-logo:hover img { transform: rotate(-4deg) scale(1.05); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
}
.nav-links a {
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--foreground-200);
  transition: color 0.16s var(--ease-out),
              background-color 0.16s var(--ease-out);
}
.nav-links a:hover { color: var(--foreground-100); background: var(--background-200); }
.nav-links a[aria-current="page"] { color: var(--foreground-100); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: flex-end;
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--foreground-200);
  transition: color 0.16s var(--ease-out),
              background-color 0.16s var(--ease-out);
  position: relative;
}
.theme-toggle:hover { background: var(--background-200); color: var(--foreground-100); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-sun,
.theme-toggle .icon-moon { transition: opacity 0.16s var(--ease-out), transform 0.24s var(--ease-out); }
html:not(.dark) .theme-toggle .icon-sun { opacity: 1; transform: rotate(0); }
html:not(.dark) .theme-toggle .icon-moon { opacity: 0; transform: rotate(90deg); position: absolute; }
html.dark       .theme-toggle .icon-sun { opacity: 0; transform: rotate(-90deg); position: absolute; }
html.dark       .theme-toggle .icon-moon { opacity: 1; transform: rotate(0); }

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(80px, 12vw, 144px);
  padding-bottom: clamp(64px, 8vw, 96px);
  position: relative;
}
.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: var(--hero-max);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 6px 14px 6px 12px;
  border: 1px dashed var(--accent-100);
  background: color-mix(in oklab, var(--accent-100) 12%, transparent);
  color: var(--accent-100);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  position: relative;
}
.hero-badge::before,
.hero-badge::after {
  content: "";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--background-100);
  border: 1px solid var(--accent-100);
  border-radius: 2px;
}
.hero-badge::before { left: -4px; }
.hero-badge::after  { right: -4px; }
.hero-badge svg { width: 14px; height: 14px; }
.hero-title {
  font-size: var(--type-h1-size);
  line-height: var(--type-h1-leading);
  letter-spacing: var(--type-h1-tracking);
  font-weight: var(--type-h1-weight);
  text-wrap: balance;
}
@media (min-width: 768px) {
  .hero-title { font-size: var(--type-h1-size-md); }
}
.hero-title .accent { color: var(--accent-100); }
.hero-subtitle {
  max-width: var(--prose-max);
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--foreground-200);
  text-wrap: pretty;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.hero-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--foreground-300);
  padding: 4px 10px;
  border: 1px solid var(--border-100);
  border-radius: 999px;
}
.hero-cta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  position: relative;
  isolation: isolate;
  transition: transform 0.16s var(--ease-spring),
              background-color 0.16s var(--ease-out),
              border-color 0.16s var(--ease-out),
              color 0.16s var(--ease-out),
              opacity 0.16s var(--ease-out);
}
.btn::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  background: var(--background-300);
  opacity: 0;
  border-radius: inherit;
  transition: opacity 0.16s var(--ease-out);
  pointer-events: none;
}
.btn::after {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -2;
  border: 1px solid currentColor;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.6s var(--ease-spring) 0.1s;
  pointer-events: none;
}
.btn:hover::before { opacity: 0.08; }
.btn:active { transform: translateY(1px) scale(0.98); }
.btn:active::after { opacity: 1; transition: none; }
.btn svg { width: 14px; height: 14px; flex-shrink: 0; }

.btn-primary {
  background: var(--accent-100);
  color: var(--on-accent);
  border-color: var(--accent-100);
}
.btn-primary:hover { border-color: color-mix(in oklab, var(--accent-100) 40%, var(--background-300)); }

.btn-ghost {
  background: var(--background-100);
  color: var(--foreground-100);
  border-color: var(--border-100);
}
.btn-ghost:hover { border-color: color-mix(in oklab, var(--accent-100) 40%, var(--border-100)); }

.btn-link {
  padding: 0;
  background: none;
  border: none;
  color: var(--foreground-100);
  font-size: 0.875rem;
  font-weight: 500;
}
.btn-link .arrow { transition: transform 0.16s var(--ease-out); display: inline-block; }
.btn-link:hover .arrow { transform: translateX(4px); }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}
@media (min-width: 768px) {
  .about-grid { grid-template-columns: 1.4fr 1fr; gap: 80px; }
}
.about-bio p {
  color: var(--foreground-200);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1em;
  text-wrap: pretty;
}
.about-bio p:last-child { margin-bottom: 0; }
.about-meta {
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--foreground-200);
}
.about-meta dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--foreground-300);
  margin-bottom: 4px;
  font-weight: 500;
}
.about-meta dd { margin: 0; }

/* ---------- Now ---------- */
.now-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px dashed var(--border-100);
}
.now-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--border-100);
}
@media (min-width: 640px) {
  .now-item {
    grid-template-columns: auto 1fr;
    gap: 24px;
    align-items: start;
  }
}
.now-item .marker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-100);
  padding-top: 4px;
  flex-shrink: 0;
  width: 96px;
}
.now-item .text {
  color: var(--foreground-200);
  font-size: 1rem;
  line-height: 1.55;
  text-wrap: pretty;
}
.now-item .text strong {
  color: var(--foreground-100);
  font-weight: 500;
}

/* ---------- Writing list ---------- */
.posts-list {
  display: flex;
  flex-direction: column;
  border-top: 1px dashed var(--border-100);
}
.post-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 24px 0;
  border-bottom: 1px dashed var(--border-100);
  position: relative;
  transition: padding-left 0.2s var(--ease-out);
}
.post-item:hover { padding-left: 8px; }
@media (min-width: 768px) {
  .post-item { grid-template-columns: 120px 1fr auto; gap: 32px; align-items: baseline; }
}
.post-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--foreground-300);
}
.post-title {
  font-size: 1.0625rem;
  line-height: 1.4;
  font-weight: 500;
  color: var(--foreground-100);
  letter-spacing: -0.01em;
}
.post-item:hover .post-title { color: var(--accent-100); }
.post-desc {
  margin-top: 4px;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--foreground-300);
  text-wrap: pretty;
}
.post-arrow {
  align-self: center;
  color: var(--foreground-300);
  transition: color 0.16s var(--ease-out), transform 0.16s var(--ease-out);
}
.post-item:hover .post-arrow { color: var(--accent-100); transform: translateX(4px); }
@media (max-width: 767px) {
  .post-arrow { display: none; }
}

/* ---------- Projects ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 768px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--border-100);
  border-radius: 8px;
  background: var(--background-100);
  transition: border-color 0.2s var(--ease-out),
              transform 0.2s var(--ease-out);
}
.project-card:hover {
  border-color: color-mix(in oklab, var(--accent-100) 30%, var(--border-100));
  transform: translateY(-1px);
}
.project-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
}
.project-name {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--foreground-100);
  letter-spacing: -0.01em;
}
.project-link {
  color: var(--foreground-300);
  transition: color 0.16s var(--ease-out);
}
.project-link:hover { color: var(--accent-100); }
.project-link svg { width: 14px; height: 14px; }
.project-desc {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--foreground-200);
  text-wrap: pretty;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}
.project-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--foreground-300);
  padding: 2px 8px;
  border: 1px solid var(--border-100);
  border-radius: 999px;
}

/* ---------- Stack ---------- */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
@media (min-width: 768px) {
  .stack-grid { grid-template-columns: repeat(3, 1fr); }
}
.stack-group .group-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--foreground-300);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border-100);
}
.stack-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.stack-list li {
  font-size: 0.875rem;
  color: var(--foreground-200);
  display: flex;
  align-items: center;
  gap: 8px;
}
.stack-list li::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--foreground-300);
  border-radius: 1px;
  flex-shrink: 0;
}

/* ---------- Contact ---------- */
.contact-inner {
  display: grid;
  gap: 32px;
  align-items: end;
}
@media (min-width: 768px) {
  .contact-inner { grid-template-columns: 1fr auto; gap: 64px; }
}
.contact-headline {
  font-size: var(--type-h2-size);
  line-height: var(--type-h2-leading);
  letter-spacing: var(--type-h2-tracking);
  font-weight: var(--type-h2-weight);
  text-wrap: balance;
}
@media (min-width: 768px) {
  .contact-headline { font-size: var(--type-h2-size-md); }
}
.contact-headline .accent { color: var(--accent-100); }
.contact-sub {
  margin-top: 16px;
  font-size: 1rem;
  color: var(--foreground-200);
  max-width: var(--prose-max);
  text-wrap: pretty;
}
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--border-100);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--foreground-100);
  transition: border-color 0.16s var(--ease-out),
              color 0.16s var(--ease-out),
              background-color 0.16s var(--ease-out);
}
.contact-link:hover {
  border-color: var(--accent-100);
  color: var(--accent-100);
}
.contact-link svg { width: 14px; height: 14px; }

/* ---------- Banner (hero illustration) ---------- */
.banner {
  position: relative;
  border: 1px solid var(--border-100);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 24px;
}
.banner img {
  width: 100%;
  height: auto;
  display: block;
}
.banner-caption {
  position: absolute;
  bottom: 16px;
  left: 16px;
  padding: 6px 12px;
  background: color-mix(in oklab, var(--background-100) 80%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-100);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--foreground-200);
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px dashed var(--border-100);
  padding-block: 32px;
  margin-top: 32px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: var(--foreground-300);
}
.footer-inner .col {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}
.footer-inner a:hover { color: var(--foreground-100); }

/* ---------- Article (post) ---------- */
.article {
  padding-top: clamp(48px, 8vw, 96px);
  padding-bottom: clamp(48px, 8vw, 96px);
}
.article-inner {
  max-width: var(--prose-max);
  margin: 0 auto;
}
.article-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--foreground-300);
  margin-bottom: 32px;
  transition: color 0.16s var(--ease-out);
}
.article-back:hover { color: var(--foreground-100); }
.article-back .arrow { transition: transform 0.16s var(--ease-out); }
.article-back:hover .arrow { transform: translateX(-3px); }

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--foreground-300);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.article-meta .dot { width: 3px; height: 3px; background: currentColor; border-radius: 50%; }

.article-title {
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 500;
  text-wrap: balance;
  margin-bottom: 16px;
}
.article-lede {
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--foreground-200);
  text-wrap: pretty;
  margin-bottom: 32px;
}

.prose h2 {
  font-size: 1.375rem;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-top: 2.25em;
  margin-bottom: 0.75em;
  font-weight: 500;
}
.prose h3 {
  font-size: 1.125rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-top: 1.75em;
  margin-bottom: 0.5em;
  font-weight: 500;
}
.prose p, .prose ul, .prose ol {
  color: var(--foreground-200);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1.25em;
  text-wrap: pretty;
}
.prose ul, .prose ol { padding-left: 1.25em; }
.prose li { margin-bottom: 0.4em; }
.prose a {
  color: var(--foreground-100);
  border-bottom: 1px solid var(--border-200);
  transition: color 0.16s var(--ease-out), border-color 0.16s var(--ease-out);
}
.prose a:hover { color: var(--accent-100); border-bottom-color: var(--accent-100); }
.prose strong { color: var(--foreground-100); font-weight: 500; }
.prose em { color: var(--foreground-100); font-style: italic; }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 2px 6px;
  background: var(--background-200);
  border: 1px solid var(--border-100);
  border-radius: 4px;
  color: var(--accent-100);
}
.prose pre {
  margin: 1.5em 0;
  padding: 16px 18px;
  background: var(--background-200);
  border: 1px solid var(--border-100);
  border-radius: 6px;
  overflow-x: auto;
  font-size: 0.8125rem;
  line-height: 1.6;
}
.prose pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--foreground-100);
  font-size: inherit;
}
.prose blockquote {
  margin: 1.5em 0;
  padding: 8px 0 8px 16px;
  border-left: 2px solid var(--accent-100);
  color: var(--foreground-200);
  font-style: italic;
}
.prose hr {
  border: 0;
  border-top: 1px dashed var(--border-100);
  margin: 2em 0;
}

/* ---------- About page (about.html) ---------- */
.page-hero {
  position: relative;
  padding-top: clamp(64px, 9vw, 112px);
  padding-bottom: clamp(40px, 6vw, 72px);
}
.page-hero-inner {
  display: grid;
  gap: 32px;
  max-width: var(--hero-max);
}
@media (min-width: 900px) {
  .page-hero-inner {
    grid-template-columns: 1fr 1fr;
    align-items: end;
    gap: 64px;
  }
}
.page-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--foreground-300);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--accent-100);
  border-radius: 2px;
}
.page-title {
  font-size: var(--type-h1-size);
  line-height: var(--type-h1-leading);
  letter-spacing: var(--type-h1-tracking);
  font-weight: var(--type-h1-weight);
  text-wrap: balance;
}
@media (min-width: 768px) {
  .page-title { font-size: var(--type-h1-size-md); }
}
.page-lede {
  font-size: 1.125rem;
  line-height: 1.55;
  color: var(--foreground-200);
  text-wrap: pretty;
  max-width: var(--prose-max);
}

.fact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px dashed var(--border-100);
}
@media (min-width: 768px) {
  .fact-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 64px; }
  .fact-grid.three { grid-template-columns: repeat(3, 1fr); }
}
.fact dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--foreground-300);
  margin-bottom: 6px;
}
.fact dd {
  margin: 0;
  color: var(--foreground-100);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.timeline {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px dashed var(--border-100);
}
.timeline-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 20px 0;
  border-bottom: 1px dashed var(--border-100);
}
@media (min-width: 640px) {
  .timeline-item {
    grid-template-columns: 120px 1fr;
    gap: 32px;
    align-items: baseline;
  }
}
.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--foreground-300);
}
.timeline-body strong {
  font-weight: 500;
  color: var(--foreground-100);
}
.timeline-body span {
  display: block;
  color: var(--foreground-200);
  font-size: 0.9375rem;
  line-height: 1.5;
  margin-top: 2px;
  text-wrap: pretty;
}

/* ---------- Utilities ---------- */
.divider { height: 1px; background: var(--border-100); border: 0; margin: 0; }
.fade-in { animation: fadeIn 0.6s var(--ease-out) both; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- Mobile nav ---------- */
@media (max-width: 640px) {
  .nav-inner { grid-template-columns: 1fr auto; height: 52px; }
  .nav-links { display: none; }
  .hero-title { font-size: 2.125rem; }
}

/* ---------- Print ---------- */
@media print {
  .bg-dots, .nav, .footer { display: none; }
  body { background: white; color: black; }
}