:root {
  --bg: #F7F8FB;
  --surface: #FFFFFF;
  --ink: #111827;
  --text: #374151;
  --muted: #4B5563;
  --subtle: #6B7280;
  --line: #E3E6EC;
  --pill-line: #D5DAE3;
  --accent: #2445D6;
  --accent-hover: #1A33A3;
  --accent-soft: #EEF2FF;
  --yes: #0F7A55;
  --amber: #8A4B00;
  --amber-bg: #FFF4E5;
  --amber-line: #F3D9B1;
  --table-head: #F1F3F7;
  --summary-bg: #FAFBFC;
  --dark-text: #F3F4F6;
  --dark-muted: #C9CED8;
  --video-bg: #1F2937;
  --play-bg: rgba(255, 255, 255, 0.92);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 'DM Sans', system-ui, sans-serif;
}
h1, h2, h3, p { margin: 0; }
h1, h2, .logo, .system-label, .step-label { font-family: 'Space Grotesk', sans-serif; }
h1, h2 { font-weight: 700; }
h2 { font-size: 36px; line-height: 1.15; letter-spacing: -0.02em; }
h3 { font-size: 20px; line-height: 1.3; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-hover); }
a, button, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
ul, ol { list-style: none; margin: 0; padding: 0; }
section, #download { scroll-margin-top: 20px; }
.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-header { border-bottom: 1px solid var(--line); }
.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  padding-top: 12px;
  padding-bottom: 12px;
}
.logo {
  padding: 10px 0;
  color: var(--ink);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.logo span { color: var(--accent); }
.guide-pill {
  padding: 4px 10px;
  border: 1px solid var(--pill-line);
  border-radius: 999px;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
}
.section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 24px;
  margin-left: auto;
  font-size: 15px;
  font-weight: 500;
}
.section-nav a { padding: 12px 0; color: var(--text); text-decoration: none; }
.section-nav a:hover { color: var(--accent); text-decoration: underline; }

.hero {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding-top: 56px;
  padding-bottom: 72px;
}
.hero-intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
}
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.chips li {
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 13px;
  font-weight: 600;
}
.chips .alpha { background: var(--amber-bg); border-color: var(--amber-line); color: var(--amber); }
.chips .checked { color: var(--muted); }
h1 { max-width: 15em; font-size: 54px; line-height: 1.05; letter-spacing: -0.03em; }
.lead { max-width: 36em; font-size: 19px; color: var(--text); }
.system-cards, .steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (width >= 720px) {
  .computer-title {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}
.system-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}
.system-card h3 { font-size: 22px; line-height: 1.25; }
.system-card p { font-size: 15px; color: var(--muted); }
.system-card .system-label { font-size: 14px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.system-card h3 + p { margin-bottom: 8px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 8px 12px;
  border-radius: 12px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
}
.download-button { margin-top: auto; background: var(--accent); color: var(--surface); }
.download-button:hover { background: var(--accent-hover); color: var(--surface); }
.download-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: -8px;
  color: var(--text);
  font-size: 15px;
}
.download-note > div { min-width: 0; }
.shield { width: 20px; height: 20px; margin-top: 2px; color: var(--yes); }
.download-note a { font-weight: 600; }
.release-note { font-size: 14px; color: var(--muted); }
.browser-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 40px;
  padding: 28px 32px;
  border-radius: 20px;
  background: var(--ink);
  color: var(--dark-text);
}
.browser-copy {
  flex: 1 1 460px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.browser-band h2 { color: var(--surface); font-size: 26px; line-height: 1.2; letter-spacing: normal; }
.browser-band p { color: var(--dark-muted); }
.browser-action { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.browser-button {
  min-height: 52px;
  padding: 10px 22px;
  gap: 10px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 700;
}
.browser-button .icon { width: 18px; height: 18px; }
.browser-button:hover { background: var(--accent-soft); color: var(--ink); }
.browser-button:focus-visible { outline-color: var(--surface); }
.browser-action p { font-size: 13px; }

.section {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-top: 72px;
  padding-bottom: 72px;
}
.section-border { border-top: 1px solid var(--line); }
.white-section { background: var(--surface); }
.section-heading { display: flex; flex-direction: column; gap: 10px; }
.intro { max-width: 46em; font-size: 17px; color: var(--text); }
.screens { gap: 22px; padding-top: 32px; }
.screens-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 16px; align-items: start; }
.screen-figure { display: flex; flex-direction: column; gap: 8px; min-width: 0; margin: 0; }
.screen-figure a {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}
.screen-figure img { display: block; width: 100%; height: auto; }
.screen-figure figcaption { font-size: 14px; color: var(--text); }
.screen-figure strong { color: var(--ink); }
.screens-small { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.screens-small .screen-figure { gap: 6px; }
.screens-small a { border-radius: 10px; }
.screens-small figcaption { font-size: 13px; }
.screens-credit { font-size: 13px; color: var(--muted); }

.comparison { gap: 20px; }
.table-frame { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: var(--surface); }
table { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: 15px; }
thead { background: var(--table-head); text-align: left; }
thead th {
  width: 20%;
  padding: 14px 16px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}
thead th:first-child { width: 32%; }
thead th:last-child { width: 28%; }
thead th span { display: block; color: var(--muted); font-weight: 500; }
tbody tr { border-top: 1px solid var(--line); }
tbody th, td { padding: 14px 16px; text-align: left; overflow-wrap: break-word; }
tbody th { font-weight: 500; }
th:first-child, th:last-child, td:last-child { padding-right: 20px; padding-left: 20px; }
td { color: var(--text); }
.status { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; }
.status .icon { width: 18px; height: 18px; }
.yes { color: var(--yes); }
.partial, .no { color: var(--amber); }
.empty { color: var(--subtle); }
.sub-label { display: block; color: var(--muted); font-size: 13px; }
.browser-cell a { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; }
.price-row { background: var(--summary-bg); }
.price-row th, .price-row td:not(:nth-child(3)) { color: var(--ink); font-weight: 600; }
.source-note { font-size: 14px; color: var(--muted); }

.verify-content { gap: 28px; }
.steps li {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg);
}
.step-label { font-size: 14px; font-weight: 700; color: var(--accent); }
.steps li > p { font-size: 15px; color: var(--text); }
.text-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  font-weight: 600;
}
.steps .text-action { margin-top: auto; }
.commands { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.commands p { color: var(--text); font-weight: 600; }
.commands pre + p { margin-top: 4px; }
.commands pre {
  margin: 0;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--dark-text);
}
.commands code { font: 13px/1.55 'JetBrains Mono', monospace; white-space: pre-wrap; overflow-wrap: anywhere; }

.featured-product {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 32px;
  padding: 24px;
  border: 2px solid var(--accent);
  border-radius: 16px;
  background: var(--surface);
}
.featured-copy {
  flex: 1 1 520px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.featured-title { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.featured-title h3 { font-size: 22px; line-height: 1.55; }
.featured-title span {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--surface);
  font-size: 12px;
  font-weight: 700;
}
.featured-copy p { font-size: 15px; color: var(--text); }
.other-products, .video-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.other-products li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}
.other-products h3 { font-size: 17px; line-height: 1.55; }
.other-products p { font-size: 14px; color: var(--text); }
.other-products .unrelated { margin-top: auto; font-size: 13px; font-weight: 600; color: var(--muted); }

.videos-content { gap: 26px; }
.video-group { display: flex; flex-direction: column; gap: 14px; }
.video-grid { gap: 20px; }
.video-grid li { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.vid, .video-player {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  border: 0;
  border-radius: 12px;
  background: var(--video-bg);
}
.vid { position: relative; padding: 0; overflow: hidden; cursor: pointer; }
.vid img { display: block; width: 100%; height: 100%; object-fit: cover; }
.play-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 999px;
  background: var(--play-bg);
  color: var(--ink);
}
.play-badge svg { width: 22px; height: 22px; fill: currentColor; }
.vid:hover .play-badge { background: var(--surface); color: var(--accent); }
.duration {
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--ink);
  color: var(--surface);
  font-size: 12px;
  font-weight: 600;
}
.video-title { font-size: 15px; font-weight: 600; line-height: 1.35; }
.channel { font-size: 14px; color: var(--muted); }

.faq-layout { flex-direction: row; flex-wrap: wrap; align-items: flex-start; gap: 24px 64px; }
.faq-layout > .section-heading { flex: 1 1 280px; min-width: 0; }
.faq-layout .section-heading p { color: var(--text); }
.faq-items { flex: 999 1 560px; min-width: 0; border-top: 1px solid var(--line); }
.faq-items details { padding: 6px 0; border-bottom: 1px solid var(--line); }
.faq-items summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.faq-items summary::-webkit-details-marker { display: none; }
.faq-items summary::after { content: '+' / ''; flex: 0 0 auto; color: var(--muted); }
.faq-items details[open] summary::after { content: '−' / ''; }
.faq-items summary:hover { color: var(--accent); }
.faq-items p { margin-bottom: 14px; color: var(--text); }

.apps-band { background: var(--ink); color: #F3F4F6; }
.apps-band-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 32px; padding-top: 40px; padding-bottom: 40px; }
.apps-band p { margin: 0; font-family: 'Space Grotesk', sans-serif; font-size: 22px; font-weight: 700; color: #FFFFFF; }
.apps-band a { display: inline-flex; align-items: center; gap: 10px; min-height: 48px; padding: 0 20px; border-radius: 12px; background: #FFFFFF; color: var(--ink); font-weight: 700; text-decoration: none; }
.apps-band a:hover { background: var(--accent-soft); color: var(--ink); }
.site-footer { border-top: 1px solid var(--line); }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 48px;
  padding-top: 32px;
  padding-bottom: 48px;
  font-size: 14px;
  color: var(--muted);
}
.footer-inner > p { flex: 1 1 520px; min-width: 0; }
.footer-inner nav { display: flex; flex-wrap: wrap; align-content: flex-start; gap: 4px 20px; }
.footer-inner a { display: inline-flex; align-items: center; min-height: 44px; }
.not-found { min-height: 55vh; align-items: flex-start; justify-content: center; }
.not-found .button { margin-top: 0; }

@media (720px <= width <= 1100px) {
  .header-inner { gap: 8px 16px; }
  .section-nav { gap: 0 16px; }
  .system-card, .steps li { padding: 18px; }
  .download-button { font-size: 14px; }
  .other-products, .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  th:first-child, th:last-child, td:last-child, td, thead th { padding-right: 12px; padding-left: 12px; }
}

@media (width < 720px) {
  .wrap { padding-right: 16px; padding-left: 16px; }
  h2 { font-size: 27px; }
  .header-inner { gap: 0 12px; padding-top: 6px; padding-bottom: 2px; }
  .logo { font-size: 19px; }
  .guide-pill { padding: 3px 9px; }
  .section-nav { flex: 1 1 100%; margin-left: 0; gap: 0 12px; font-size: 14px; }
  .section-nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 10px 0; }
  .nav-long { display: none; }
  .hero { gap: 22px; padding-top: 28px; padding-bottom: 40px; }
  .hero-intro { order: -2; align-items: flex-start; gap: 14px; text-align: left; }
  .chips { justify-content: flex-start; gap: 6px; }
  .chips li { padding: 4px 10px; font-size: 12px; }
  h1 { font-size: 36px; line-height: 1.08; }
  .lead { font-size: 17px; }
  .browser-band {
    order: -1;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 20px;
    border-radius: 18px;
  }
  .browser-copy { flex-basis: auto; gap: 12px; }
  .browser-band h2 { font-size: 22px; }
  .browser-copy p { font-size: 15px; }
  .browser-action { align-items: stretch; gap: 12px; }
  .browser-button { padding-right: 10px; padding-left: 10px; }
  .system-cards { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .computer-title {
    display: block;
    margin-top: 4px;
    font-size: 20px;
    line-height: 1.25;
    letter-spacing: normal;
  }
  .system-card { gap: 6px; padding: 16px; border-radius: 14px; }
  .system-card .system-label { font-size: 13px; }
  .system-card h3 { font-size: 19px; }
  .system-card p { font-size: 14px; }
  .system-card h3 + p { margin-bottom: 6px; }
  .download-button { min-height: 46px; }
  .download-note { gap: 10px; margin-top: 0; font-size: 14px; }
  .shield { margin-top: 1px; }
  .release-note { margin-top: 4px; font-size: 13px; }
  .section { gap: 14px; padding-top: 40px; padding-bottom: 40px; }
  .section-heading { gap: 14px; }
  .intro { font-size: 15px; }
  .screens { gap: 14px; padding-top: 24px; }
  .screens-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .screen-figure { gap: 6px; }
  .screen-figure a { border-radius: 12px; }
  .screen-figure figcaption { font-size: 13px; }
  .screens-small { gap: 12px; }
  .screens-small .screen-figure { gap: 4px; }
  .screens-small a { border-radius: 8px; }
  .screens-credit { font-size: 12px; }
  .table-frame { border: 0; border-radius: 0; overflow: visible; background: transparent; }
  table { display: block; }
  thead {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
  tbody { display: flex; flex-direction: column; gap: 10px; }
  tbody tr {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--surface);
  }
  tbody th { display: block; font-size: 16px; font-weight: 700; }
  tbody th, td, th:first-child, td:last-child { padding: 0; }
  td {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 14px;
    text-align: right;
  }
  td::before {
    content: attr(data-label);
    flex-shrink: 0;
    color: var(--muted);
    font-weight: 400;
    text-align: left;
  }
  .status .icon { width: 16px; height: 16px; }
  .empty { display: none; }
  .browser-cell { display: block; text-align: left; }
  .browser-cell::before { content: none; }
  .browser-cell a {
    display: flex;
    width: 100%;
    margin-top: 2px;
    padding: 8px 14px;
    border-radius: 10px;
    background: var(--accent-soft);
    font-size: 15px;
    text-decoration: none;
  }
  .browser-cell a:hover { background: var(--table-head); }
  .browser-cell .sub-label { margin-top: 6px; }
  .source-note { font-size: 13px; }
  .verify-content { gap: 16px; }
  .verify-content .section-heading { gap: 16px; }
  .steps { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .steps li { gap: 8px; padding: 16px; border-radius: 14px; }
  .step-label { font-size: 13px; }
  .steps h3 { font-size: 18px; }
  .commands code { font-size: 12px; }
  .featured-product {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 16px;
    border-radius: 14px;
  }
  .featured-copy { flex-basis: auto; }
  .featured-title { gap: 8px; }
  .featured-title h3 { font-size: 18px; }
  .featured-title span { padding: 2px 9px; }
  .featured-copy p { font-size: 14px; }
  .other-products {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
  }
  .other-products li { gap: 2px; padding: 14px 16px; border: 0; border-radius: 0; }
  .other-products li + li { border-top: 1px solid var(--line); }
  .other-products h3 { font-size: 16px; }
  .other-products .unrelated { margin-top: 0; }
  .videos-content { gap: 18px; }
  .video-group { gap: 10px; }
  .video-group h3 { font-size: 18px; }
  .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 12px; }
  .video-grid li { gap: 6px; }
  .vid, .video-player { border-radius: 10px; }
  .play-badge { width: 40px; height: 40px; }
  .play-badge svg { width: 16px; height: 16px; }
  .video-title { font-size: 13px; line-height: 1.3; }
  .channel { font-size: 12px; }
  .duration { right: 6px; bottom: 6px; padding: 1px 6px; border-radius: 5px; font-size: 11px; }
  .faq-layout { flex-direction: column; align-items: stretch; gap: 16px; }
  .faq-layout > .section-heading, .faq-items { flex: none; }
  .faq-layout .section-heading { gap: 10px; }
  .faq-layout .section-heading p { font-size: 15px; }
  .faq-items details { padding: 4px 0; }
  .faq-items summary { font-size: 16px; }
  .faq-items p { margin-bottom: 12px; font-size: 15px; }
  .footer-inner {
    flex-direction: column;
    gap: 10px;
    padding-top: 24px;
    padding-bottom: 40px;
    font-size: 13px;
  }
  .footer-inner > p { flex: none; }
  .footer-inner nav { gap: 0 18px; font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}