:root {
  --accent: #4f56c8;
  --accent-dark: #3c42a6;
  --ink: #1c1e22;
  --muted: #6b7280;
  --line: #e3e6ec;
  --bg: #ffffff;
  --bg-soft: #f5f6f9;
  --radius: 4px;
  --wrap: 1040px;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ink);
  font-family: Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

main {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  border: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin: 0 0 12px;
  font-weight: 500;
}

h1 {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 28px;
  letter-spacing: -0.2px;
}

h3 {
  font-size: 19px;
}

p {
  margin: 0 0 16px;
}

code {
  font-family: "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 14px;
  color: var(--ink);
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  z-index: 10;
}

.skip:focus {
  left: 0;
}

.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  flex: 0 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  color: var(--ink);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.2px;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 26px;
  height: 26px;
  margin-right: 10px;
  display: block;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}

.site-nav li {
  margin-left: 26px;
}

.site-nav a {
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  line-height: 1.4;
  padding: 8px 14px;
}

.nav-toggle:hover {
  background: var(--bg-soft);
  border-color: #c9ccd6;
}

.nav-head,
.nav-scrim,
.nav-close {
  display: none;
}

body.nav-open {
  overflow: hidden;
}

.hero {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  padding: 56px 0 48px;
  text-align: center;
  flex: 0 0 auto;
}

.hero--fill {
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  padding: 40px 0;
}

.hero-logo {
  width: 92px;
  height: 92px;
  margin: 0 auto 20px;
  display: block;
}

.hero p.lead {
  font-size: 19px;
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 26px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
}

.hero .actions {
  justify-content: center;
}

.btn {
  display: inline-block;
  margin: 0 6px;
  padding: 11px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.btn-ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: #c9ccd6;
}

.section {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

.section-soft {
  background: var(--bg-soft);
}

.section:last-child {
  border-bottom: 0;
}

.section-head {
  max-width: 680px;
  margin-bottom: 32px;
}

.section-head p {
  color: var(--muted);
  font-size: 17px;
  margin: 0;
}

.section--right .section-head {
  margin-left: auto;
  text-align: right;
}

.section--right .actions {
  justify-content: flex-end;
}

.columns {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin: 0 10px 20px;
  flex: 1 1 320px;
  box-shadow: 0 1px 2px rgba(28, 30, 34, 0.04);
}

.card p {
  color: var(--muted);
  margin-bottom: 16px;
}

.card p:last-child {
  margin-bottom: 0;
}

.card-meta {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.card-meta li {
  display: inline-block;
  margin: 0 14px 4px 0;
}

.card-meta span {
  color: var(--ink);
  font-weight: 500;
}

.app-card {
  display: flex;
  align-items: flex-start;
}

.app-mark {
  flex: 0 0 auto;
  width: 64px;
  height: 64px;
  margin-right: 20px;
  border-radius: 8px;
}

.app-body {
  flex: 1 1 auto;
  min-width: 0;
}

.device-card {
  display: flex;
  align-items: flex-start;
}

.device-photo {
  flex: 0 0 auto;
  width: 72px;
  height: 95px;
  margin-right: 20px;
  border-radius: 8px;
  background: #fff;
  object-fit: cover;
}

.device-body {
  flex: 1 1 auto;
  min-width: 0;
}

.tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  background: #eef0fb;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 500;
  margin-left: 8px;
  vertical-align: middle;
}

.note {
  color: var(--muted);
  font-size: 14px;
}

.spaced {
  margin-top: 16px;
}

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

.repo-list li {
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}

.repo-list li:last-child {
  border-bottom: 0;
}

.repo-list .desc {
  color: var(--muted);
  margin-left: 10px;
}

.site-footer {
  background: var(--ink);
  color: #9aa0ab;
  padding: 40px 0 26px;
  font-size: 14px;
  flex: 0 0 auto;
}

.site-footer--compact {
  padding: 20px 0;
}

.footer-cols {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -10px 30px;
}

.footer-col {
  flex: 1 1 160px;
  margin: 0 10px 20px;
}

.footer-col h4 {
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  margin: 0 0 12px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li {
  margin-bottom: 8px;
}

.footer-col a {
  color: #9aa0ab;
}

.footer-col a:hover {
  color: #fff;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 24px;
  color: #6f7580;
}

.footer-base p {
  margin: 0;
}

.site-footer--compact .footer-base {
  color: #9aa0ab;
}

.site-footer--compact .footer-base a {
  color: #9aa0ab;
}

@media (max-width: 720px) {
  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 24px;
  }

  .hero {
    padding: 44px 0 40px;
  }

  .section {
    padding: 44px 0;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-scrim {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(28, 30, 34, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s ease, visibility 0.28s ease;
    z-index: 40;
  }

  .nav-scrim.is-open {
    opacity: 1;
    visibility: visible;
  }

  .site-nav {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: min(84vw, 320px);
    z-index: 50;
    padding: 20px 20px 32px;
    padding-top: max(20px, env(safe-area-inset-top));
    padding-bottom: max(32px, env(safe-area-inset-bottom));
    background: var(--bg);
    border-right: 1px solid var(--line);
    box-shadow: 0 0 40px rgba(28, 30, 34, 0.12);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    visibility: hidden;
    transform: translateX(-100%);
    transition: transform 0.28s ease, visibility 0.28s ease;
  }

  .site-nav.is-open {
    visibility: visible;
    transform: translateX(0);
  }

  .nav-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 0 14px;
    padding: 0 0 16px;
    border-bottom: 1px solid var(--line);
  }

  .nav-title {
    color: var(--muted);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .nav-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    margin: -8px -8px -8px 0;
    background: none;
    border: 0;
    border-radius: var(--radius);
    color: var(--muted);
    cursor: pointer;
    font: inherit;
    font-size: 24px;
    line-height: 1;
  }

  .nav-close:hover {
    background: var(--bg-soft);
    color: var(--ink);
  }

  .site-nav ul {
    flex-direction: column;
  }

  .site-nav li {
    margin: 0;
  }

  .site-nav a {
    display: block;
    margin: 0 -14px;
    padding: 10px 14px;
    border-radius: var(--radius);
    color: var(--ink);
    font-size: 16px;
    line-height: 1.5;
  }

  .site-nav a:hover,
  .site-nav a:focus {
    background: var(--bg-soft);
    text-decoration: none;
  }

  .site-nav a[aria-current="page"] {
    background: #eef0fb;
    color: var(--accent-dark);
    font-weight: 600;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-scrim,
  .site-nav {
    transition: none;
  }
}