
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  color-scheme: light;
  --paper: #ffffff;
  --ink: #000000;
  --text-2: #333333;
  --reading-color: #222222;
  --meta: #333333;
  --line: #e2e2e2;
  --plate: #f5f5f3;
  --hover-fill: #2b2b2b;

   --block: #000000;
  --block-ink: #ffffff;
  --block-2: #c4c4c4;
  --block-meta: #b3b3b3;

  --baskervville: "Baskervville", "Baskerville", "Times New Roman", serif;
  --serif: var(--baskervville);
  --display: "ZT Talk", "Helvetica Neue", Arial, sans-serif;
  --wordmark: var(--baskervville);
  --sans: "ZT Talk", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --wrap: 1040px;
  --gutter: clamp(1.25rem, 4vw, 1.5rem);
  --section: clamp(5.5rem, 11vw, 8.75rem);
  --radius: 10px;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0b0b0b;
  --ink: #f4f4f2;
  --text-2: #c4c4c4;
  --reading-color: #c4c4c4;
  --meta: #b0b0b0;
  --line: #2a2a2a;
  --plate: #161616;
  --hover-fill: #d6d6d6;
  --block: #f4f4f2;
  --block-ink: #0b0b0b;
  --block-2: #3d3d3d;
  --block-meta: #5c5c5c;
}

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-optical-sizing: auto;
}
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img { display: block; max-width: 100%; height: auto; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
::selection { background: var(--ink); color: var(--paper); }
.letter ::selection { background: var(--block-ink); color: var(--block); }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}
.skip {
  position: absolute; left: 1rem; top: -4rem; z-index: 50;
  padding: .6rem 1rem; background: var(--ink); color: var(--paper);
  font: 500 .875rem var(--sans); text-decoration: none;
}
.skip:focus { top: 1rem; }

.wrap { width: min(100%, calc(var(--wrap) + 2 * var(--gutter))); margin: 0 auto; padding: 0 var(--gutter); }

.ul {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
  text-decoration-color: var(--line);
  transition: text-decoration-color .2s ease;
}
.ul:hover { text-decoration-color: currentColor; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 46px; padding: 0 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font: 600 .875rem var(--sans);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--hover-fill); border-color: var(--hover-fill); }
.btn-line { background: transparent; color: var(--ink); }
.btn-line:hover { background: var(--ink); color: var(--paper); }

.site-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  padding: 2.1rem 0;
  font: 500 .875rem var(--sans);
}
.site-header nav { display: flex; gap: 1.75rem; }
.site-header nav a { text-decoration: none; }
.site-header nav a:hover, .site-header nav a[aria-current="page"] { text-decoration: underline; text-underline-offset: 5px; text-decoration-thickness: 1px; }
.nav-right { justify-self: end; }
.wordmark {
  font-family: var(--wordmark);
  font-weight: 400;
  font-size: .95rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  padding-left: .3em;
}
.m-only { display: none; }

.hero { padding: clamp(5rem, 13vw, 9.4rem) 0 0; text-align: center; }
.hero h1 {
  max-width: 12em; margin: 0 auto;
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.6rem, 7.6vw, 4.875rem);
  line-height: .92;
  letter-spacing: -.045em;
  text-wrap: balance;
}
.hero-sub {
  max-width: 24em; margin: 2.1rem auto 0;
  font-family: var(--sans);
  font-size: clamp(1.15rem, 2.2vw, 1.375rem);
  line-height: 1.45;
  color: var(--text-2);
}
.socials {
  display: flex; justify-content: center; flex-wrap: wrap; gap: .5rem 2rem;
  margin-top: 2rem;
  font: 500 .875rem var(--sans);
}

.letter {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
  margin-top: clamp(4.5rem, 10vw, 7.5rem);
  padding: clamp(2rem, 5.5vw, 3.75rem) clamp(1.5rem, 5vw, 3.5rem);
  background: var(--block);
  color: var(--block-ink);
  border-radius: 14px;
  scroll-margin-top: 2rem;
}
.letter h2 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.1rem, 4.4vw, 3.125rem);
  line-height: .95;
  letter-spacing: -.04em;
  text-wrap: balance;
}
.letter-copy { margin-top: 1.1rem; max-width: 22em; font-family: var(--sans); font-size: 1.1875rem; line-height: 1.5; color: var(--block-2); }

.signup { display: flex; flex-direction: column; gap: .625rem; }
.signup-field {
  display: flex; align-items: center; gap: 6px;
  padding: 5px;
  background: #ffffff;
  border-radius: 999px;
}
.signup .formkit-field { flex: 1; min-width: 0; }
.signup input {
  width: 100%; height: 50px;
  padding: 0 18px;
  background: transparent; border: 0; outline: 0; border-radius: 0;
  color: #000000;
  font: 400 1rem var(--sans);
}
.signup input::placeholder { color: #767676; opacity: 1; }
.signup-field:focus-within { box-shadow: 0 0 0 3px color-mix(in srgb, var(--block-ink) 35%, transparent); }
.signup-btn {
  flex: none;
  height: 50px; padding: 0 26px;
  border-radius: 999px;
  background: #000000; color: #ffffff;
  font: 600 .875rem var(--sans);
  transition: background-color .2s ease;
}
.signup-btn:hover { background: #2b2b2b; }
.signup-btn:disabled { cursor: wait; }
.signup-note { padding-left: 20px; font: 500 .8125rem var(--sans); color: var(--block-meta); }
.signup .formkit-alert { list-style: none; padding-left: 20px; font: .875rem var(--sans); color: var(--block-ink); }
.signup .formkit-alert:empty { display: none; }
:root[data-theme="dark"] .signup-field { background: #ffffff; box-shadow: 0 0 0 1px #d4d4d4; }

.section { margin-top: var(--section); scroll-margin-top: 1.5rem; }
.section-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--ink);
  margin-bottom: 2.25rem;
}
.section-head h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(2.1rem, 4.4vw, 2.75rem); line-height: 1; }
#work > .section-head h2 { font-family: var(--baskervville); font-weight: 400; }
.section-head a { font: 600 .875rem var(--sans); }

.card {
  display: flex; flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  transition: border-color .25s ease;
}
.card:hover { border-color: var(--ink); }
.label { font: 500 .8125rem var(--sans); color: var(--meta); }

.feature { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.feature-body { display: flex; flex-direction: column; gap: .9rem; padding: clamp(1.75rem, 4.5vw, 2.75rem); }
.feature-title { font-family: var(--serif); font-weight: 500; font-size: clamp(2.6rem, 5.4vw, 3.5rem); line-height: 1; letter-spacing: .02em; }
.feature-copy { font-family: var(--sans); font-size: 1.125rem; line-height: 1.5; color: var(--text-2); max-width: 22em; }
.feature-body .btn { margin-top: auto; align-self: flex-start; }
.feature-body .btn-wrap { margin-top: auto; padding-top: 1.1rem; }
.feature-plate { position: relative; min-width: 0; min-height: 360px; overflow: hidden; background: #111; }
.feature-plate img { position: absolute; inset: 0; display: block; width: 100%; height: 100%; object-fit: cover; }

.rows { margin-top: .5rem; }
.index-row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1.5rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.index-row-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.25rem, 2.4vw, 1.5625rem);
  line-height: 1.25;
  text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 6px;
  text-decoration-color: transparent;
  transition: text-decoration-color .2s ease;
}
.index-row:hover .index-row-title { text-decoration-color: currentColor; }
.index-row .label { white-space: nowrap; }

.builds { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.card-media { aspect-ratio: 4 / 3; background: var(--plate); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-body { display: flex; flex-direction: column; gap: .625rem; flex: 1; padding: 1.9rem 2rem 2rem; }
.card-title { font-family: var(--serif); font-weight: 500; font-size: 2.125rem; line-height: 1; }
.card-copy { font-family: var(--sans); font-size: 1.0625rem; line-height: 1.5; color: var(--text-2); }
.card-cta {
  margin-top: auto; padding-top: .75rem;
  font: 600 .875rem var(--sans);
  text-decoration: underline; text-underline-offset: 5px; text-decoration-color: var(--line);
  transition: text-decoration-color .2s ease;
}
.card:hover .card-cta { text-decoration-color: currentColor; }

.work { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.work-item { display: flex; flex-direction: column; gap: .875rem; padding: .25rem 3rem .25rem 0; }
.work-item + .work-item { padding: .25rem 0 .25rem 3rem; border-left: 1px solid var(--line); }
.work-item h3 { font-family: var(--baskervville); font-weight: 400; font-size: 1.875rem; line-height: 1.15; }
.work-item p { font-family: var(--sans); font-size: 1.125rem; line-height: 1.55; color: var(--text-2); margin-bottom: 1.4rem; }
.work-item .btn { margin-top: auto; align-self: flex-start; }

.thesis { margin-top: calc(var(--section) + 1.25rem); text-align: center; }
.thesis-quote { max-width: 17em; margin: 0 auto; font-family: var(--baskervville); font-style: italic; font-weight: 400; font-size: clamp(1.75rem, 3.8vw, 2.375rem); line-height: 1.22; text-wrap: balance; }
.thesis-note { max-width: 34em; margin: 1.75rem auto 0; font-size: 1rem; font-weight: 500; line-height: 1.55; color: var(--text-2); }

.winnie-note {
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
  margin-top: clamp(5rem, 10vw, 8rem);
  font-family: var(--baskervville); font-style: italic; font-weight: 400; font-size: .9375rem;
  color: var(--text-2);
}
.winnie-companion { display: flex; align-items: flex-end; width: 76px; height: 97px; }
.winnie-portrait { width: 76px; height: 97px; image-rendering: pixelated; object-fit: contain; object-position: center bottom; }

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  margin-top: 3rem;
  padding: 1.9rem 0 3rem;
  border-top: 1px solid var(--ink);
  font: .8125rem var(--sans);
}
.site-footer .copy { color: var(--meta); font-weight: 500; }
.site-footer nav {
  grid-column: 2;
  grid-row: 1;
  justify-self: end;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem 1.4rem;
  font-weight: 500;
}
.appearance-toggle {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--meta);
  cursor: pointer;
  transition: color .18s ease, background-color .18s ease;
}
.appearance-toggle svg { display: block; width: 13px; height: 13px; }
.site-footer nav .appearance-toggle { margin-left: -.9rem; }
.appearance-toggle:hover { background: var(--plate); color: var(--ink); }
.appearance-toggle:active { transform: scale(.96); }
.appearance-toggle:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  .appearance-toggle { transition: none; }
}

.page-head { padding: clamp(4rem, 10vw, 7rem) 0 clamp(2.5rem, 5vw, 3.5rem); border-bottom: 1px solid var(--ink); }
.page-title { font-family: var(--display); font-weight: 700; font-size: clamp(2.75rem, 7vw, 4.5rem); line-height: .95; letter-spacing: -.045em; }
.page-lede { max-width: 65ch; margin-top: 1.25rem; font-family: var(--baskervville); font-size: clamp(1.1875rem, 2vw, 1.25rem); line-height: 1.7; color: var(--reading-color); font-variant-numeric: lining-nums; }

.guide-grid { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; margin-top: 3rem; }
.guide-grid > li { display: flex; }
.guide-grid > li[hidden] { display: none; }
.guide-card { flex: 1; display: flex; flex-direction: column; gap: .8rem; padding: 2rem; border: 1px solid var(--line); border-radius: var(--radius); text-decoration: none; transition: border-color .25s ease; }
a.guide-card:hover { border-color: var(--ink); }
.guide-meta { display: flex; justify-content: space-between; gap: 1rem; font: 500 .8125rem var(--sans); color: var(--meta); }
.guide-card h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(1.375rem, 2.4vw, 1.625rem); line-height: 1.15; letter-spacing: -.02em; }
.guide-card p { max-width: 65ch; font-family: var(--baskervville); font-size: 1.125rem; line-height: 1.65; color: var(--reading-color); font-variant-numeric: lining-nums; }
.guide-action { margin-top: auto; padding-top: 1rem; }
.guide-card .btn { pointer-events: none; }
.guide-card.is-soon { background: transparent; }
.guide-card.is-soon h2 { color: var(--text-2); }
.soon { display: inline-flex; align-items: center; height: 36px; padding: 0 16px; border: 1px dashed var(--line); border-radius: 999px; font: 500 .8125rem var(--sans); color: var(--meta); }

.pager { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: .5rem; margin-top: 3.5rem; font: 500 .875rem var(--sans); }
.pager[hidden] { display: none; }
.pager a, .pager span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 44px; height: 44px; padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease;
}
.pager a:hover { border-color: var(--ink); }
.pager [aria-current="page"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.pager .is-disabled { color: var(--meta); border-color: transparent; }
.pager-status { margin-top: 1rem; text-align: center; font: 500 .8125rem var(--sans); color: var(--meta); }

 .build-list { display: grid; gap: 1rem; max-width: 1040px; margin: 2.5rem auto 0; }
 .build-row { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.build-row .card-media { aspect-ratio: auto; min-height: 0; padding: 0; background: #111; }
.build-row .card-media img { width: 100%; height: 100%; object-fit: cover; }
.build-info { display: flex; flex-direction: column; gap: .5rem; padding: clamp(1.25rem, 2.4vw, 1.75rem); }
.build-info h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(2rem, 4vw, 2.5rem); line-height: 1; }
.build-info > p { max-width: 65ch; font-family: var(--baskervville); font-size: 1.1875rem; line-height: 1.7; color: var(--reading-color); font-variant-numeric: lining-nums; }
.spec { margin-top: .25rem; }
.spec-title { font: 500 .8125rem var(--sans); color: var(--meta); padding-bottom: .35rem; border-bottom: 1px solid var(--ink); }
.spec ul { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 1.25rem; }
.spec li { padding: .35rem 0; border-bottom: 1px solid var(--line); font-size: .9375rem; }
.build-info .btn { margin-top: auto; align-self: flex-start; }
.build-info .btn-gap { margin-top: auto; padding-top: .6rem; }
@media (max-width: 820px) {
  .build-row { grid-template-columns: minmax(0, 1fr); }
  .build-row .card-media { min-height: 0; aspect-ratio: 16 / 9; }
  .build-info { padding: 1.5rem; }
}

.article { max-width: 760px; margin: 0 auto; padding: clamp(3rem, 8vw, 5.5rem) 0 0; }
.crumb { font: 500 .875rem var(--sans); }
.article-kicker { margin-top: 2.5rem; font: 500 .8125rem var(--sans); color: var(--meta); }
.article-title { margin-top: .9rem; font-family: var(--display); font-weight: 700; font-size: clamp(2.375rem, 6.2vw, 3.75rem); line-height: .98; letter-spacing: -.04em; text-wrap: balance; }
.article-lede { max-width: 65ch; margin-top: 1.5rem; font-family: var(--sans); font-size: 1.125rem; line-height: 1.7; color: var(--text-2); }

.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; margin-top: 2.5rem; padding-top: 1.1rem; border-top: 1px solid var(--ink); }
.facts dt { font: 500 .8125rem var(--sans); color: var(--meta); }
.facts dd { margin-top: .3rem; font-weight: 600; font-size: 1rem; }

.step { margin-top: clamp(3.5rem, 7vw, 4.75rem); scroll-margin-top: 1.5rem; }
.step-label { font-family: var(--sans); font-size: 1.125rem; font-weight: 500; color: var(--meta); }
.step h2 { margin-top: .4rem; font-weight: 700; font-size: clamp(1.5rem, 3vw, 1.875rem); line-height: 1.15; letter-spacing: -.02em; }
.step p { max-width: 65ch; margin-top: 1rem; font-family: var(--sans); font-size: 1.125rem; line-height: 1.7; color: var(--text-2); }
.step p code, .prose code { font: .9em var(--mono); padding: .1em .35em; background: var(--plate); border-radius: 4px; color: var(--ink); }

.code { margin-top: 1.5rem; background: #0e0e0e; color: #ededed; border-radius: var(--radius); overflow: hidden; }
:root[data-theme="dark"] .code { box-shadow: 0 0 0 1px var(--line); }
.code-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .75rem .9rem .75rem 1.4rem; border-bottom: 1px solid #262626; font: 500 .75rem var(--sans); color: #9a9a9a; }
.copy-btn { height: 32px; padding: 0 14px; border-radius: 999px; background: #262626; color: #ededed; font: 600 .75rem var(--sans); transition: background-color .2s ease; }
.copy-btn:hover { background: #3a3a3a; }
.code pre { margin: 0; padding: 1.25rem 1.4rem 1.4rem; overflow-x: auto; font: .8125rem/1.8 var(--mono); tab-size: 2; }

.article-end { margin-top: clamp(4rem, 8vw, 5.5rem); padding-top: 1.1rem; border-top: 1px solid var(--ink); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.article-end p { max-width: 65ch; font-family: var(--sans); font-size: 1.125rem; line-height: 1.7; color: var(--text-2); }

.letter-compact { margin-top: clamp(4rem, 8vw, 5.5rem); }

.contact-dialog {
  position: fixed; inset: 0; margin: auto;
  width: min(34rem, calc(100% - 2rem)); max-height: min(85vh, 42rem); overflow: auto;
  padding: clamp(1.5rem, 5vw, 2.5rem);
  border: 1px solid var(--line); border-radius: 14px;
  background: var(--paper); color: var(--ink); text-align: center;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .18);
}
.contact-dialog::backdrop { background: rgba(0, 0, 0, .58); }
.contact-dialog[open] { animation: contact-in .18s ease-out; }
.contact-head { display: flex; justify-content: flex-end; margin-bottom: 1rem; }
.contact-close {
  min-height: 44px; padding: 0 .9rem;
  border: 1px solid var(--line); border-radius: 999px;
  font: 600 .8125rem var(--sans);
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.contact-close:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.contact-dialog h2 {
  margin-bottom: .75rem; font: 500 clamp(1.6rem, 5vw, 2rem)/1.12 var(--serif);
  text-wrap: balance;
}
.contact-dialog p { margin-bottom: .65rem; color: var(--text-2); }
.contact-email {
  display: block; margin-bottom: 1.25rem; color: var(--ink);
  font-size: 1.1rem; font-weight: 600; overflow-wrap: anywhere;
}
.toast {
  position: fixed; z-index: 30; left: 50%; bottom: 1.25rem;
  max-width: calc(100vw - 2rem); padding: .65rem 1rem;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--plate); color: var(--ink); font-size: .875rem;
  box-shadow: 0 8px 28px rgba(0, 0, 0, .12);
  opacity: 0; pointer-events: none; transform: translate(-50%, .5rem);
  transition: opacity .2s ease, transform .2s ease;
}
.toast.is-shown { opacity: 1; transform: translate(-50%, 0); }
@keyframes contact-in { from { opacity: 0; transform: scale(.97); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation: none !important; }
}

@media (max-width: 820px) {
  .site-header { grid-template-columns: minmax(0, 1fr) auto; padding: .7rem 0; }
  .nav-left { display: none !important; }
  .wordmark { justify-self: start; display: inline-flex; align-items: center; min-height: 44px; font-size: .85rem; letter-spacing: .24em; padding-left: 0; }
  .nav-right { gap: 1.25rem !important; }
  .nav-right a:not(.d-only), .socials a, .site-footer nav a { display: inline-flex; align-items: center; min-height: 44px; }
  .appearance-toggle { width: 44px; height: 44px; }
  .site-footer nav .appearance-toggle { margin-left: 0; }
  .d-only { display: none; }
  .m-only { display: inline-flex; }
  .letter, .feature, .builds, .work, .guide-grid { grid-template-columns: minmax(0, 1fr); }
  .feature-plate { min-height: 0; aspect-ratio: 16 / 9; }
  .work-item, .work-item + .work-item { padding: 0; border-left: 0; }
  .work-item + .work-item { margin-top: 2.5rem; padding-top: 2.5rem; border-top: 1px solid var(--line); }
  .facts { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
}
@media (max-width: 380px) {
  .wordmark { font-size: .72rem; letter-spacing: .1em; }
  .site-header { gap: .65rem; }
  .nav-right { gap: .85rem !important; }
  .signup-field { flex-direction: column; align-items: stretch; border-radius: 16px; }
  .signup-btn { width: 100%; padding: 0 16px; }
}
@media (max-width: 520px) {
  .index-row { flex-direction: column; gap: .35rem; }
  .signup-btn { padding: 0 18px; }
  .site-footer { grid-template-columns: minmax(0, 1fr) auto; }
  .site-footer nav { grid-column: 1 / -1; grid-row: 2; justify-self: start; }
  .guide-card { padding: 1.5rem; }
  .card-body { padding: 1.5rem; }
  .article-lede, .step p { font-size: 1.125rem; }
}
