:root {
  color-scheme: dark;
  --bg: #07080b;
  --surface: #111319;
  --surface-strong: #171a22;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #f5f7fb;
  --muted: #a9afbc;
  --muted-strong: #cbd0db;
  --cyan: #4dd8ff;
  --violet: #a58bff;
  --green: #7ce3b1;
  --danger: #ff7e8c;
  --focus: #ffffff;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

img {
  display: block;
  max-width: 100%;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 9px 12px;
  border-radius: 6px;
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 8, 11, 0.92);
  backdrop-filter: blur(18px);
}

.header-inner,
.main-inner,
.footer-inner {
  width: min(calc(100% - 36px), var(--max-width));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-weight: 730;
  text-decoration: none;
  white-space: nowrap;
}

.brand img {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
}

.brand span {
  font-size: 15px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 5px;
}

.site-nav a {
  min-height: 38px;
  padding: 7px 10px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--surface-strong);
  color: var(--text);
}

.site-nav .language-link {
  margin-left: 5px;
  border: 1px solid var(--line);
}

main {
  min-height: calc(100vh - 68px - 180px);
}

.main-inner {
  padding-block: 68px 92px;
}

.product-intro {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  align-items: center;
  gap: 26px;
  max-width: 760px;
  padding-bottom: 52px;
}

.product-intro img {
  width: 104px;
  height: 104px;
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  box-shadow: 0 18px 48px rgba(34, 125, 255, 0.16);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 7vw, 56px);
  font-weight: 760;
  line-height: 1.05;
  letter-spacing: 0;
}

.subtitle {
  margin: 10px 0 0;
  color: var(--muted-strong);
  font-size: 19px;
  font-weight: 560;
}

.lede {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 70px;
}

.action-card {
  display: flex;
  min-height: 154px;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.action-card:hover {
  border-color: var(--line-strong);
  background: var(--surface-strong);
  transform: translateY(-2px);
}

.action-card.support {
  border-top-color: var(--cyan);
}

.action-card.privacy {
  border-top-color: var(--violet);
}

.action-card h2 {
  margin: 0 0 6px;
  font-size: 20px;
  line-height: 1.25;
}

.action-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.arrow {
  align-self: flex-end;
  color: var(--muted-strong);
  font-size: 21px;
  line-height: 1;
}

.section {
  padding-block: 54px;
  border-top: 1px solid var(--line);
}

.section:first-child {
  padding-top: 0;
  border-top: 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 30px;
}

.section-heading h2,
.page-header h1 {
  margin: 0;
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 740;
  line-height: 1.15;
}

.section-heading p,
.page-header .lede {
  margin-top: 12px;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.topic h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
}

.topic p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.status-line {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 22px;
  color: var(--muted-strong);
  font-size: 13px;
}

.status-dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(124, 227, 177, 0.1);
}

.page-header {
  max-width: 760px;
  padding-bottom: 48px;
}

.page-header .meta {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  align-items: start;
  gap: 70px;
}

.prose {
  min-width: 0;
}

.prose section {
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

.prose section:first-child {
  padding-top: 0;
  border-top: 0;
}

.prose h2 {
  margin: 0 0 12px;
  font-size: 21px;
  font-weight: 720;
  line-height: 1.3;
}

.prose h3 {
  margin: 24px 0 8px;
  font-size: 16px;
}

.prose p,
.prose li {
  color: var(--muted-strong);
}

.prose p {
  margin: 0 0 14px;
}

.prose ul,
.prose ol {
  margin: 12px 0 18px;
  padding-left: 22px;
}

.prose li + li {
  margin-top: 7px;
}

.prose a,
.side-panel a,
.site-footer a {
  color: var(--cyan);
}

.side-panel {
  position: sticky;
  top: 92px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.side-panel h2 {
  margin: 0 0 12px;
  font-size: 14px;
}

.side-panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.side-panel li + li {
  margin-top: 8px;
}

.side-panel a {
  font-size: 13px;
  text-decoration: none;
}

.side-panel a:hover {
  text-decoration: underline;
}

.contact-panel {
  margin-bottom: 46px;
  padding: 24px;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--cyan);
  border-radius: 8px;
  background: var(--surface);
}

.contact-panel h2 {
  margin: 0 0 8px;
  font-size: 21px;
}

.contact-panel p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--text);
  color: var(--bg);
  font-size: 14px;
  font-weight: 720;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--text);
}

.notice {
  margin: 22px 0;
  padding: 15px 17px;
  border-left: 3px solid var(--violet);
  background: rgba(165, 139, 255, 0.08);
  color: var(--muted-strong);
  font-size: 14px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 17px 0;
  color: var(--text);
  font-weight: 680;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  color: var(--muted);
  font-size: 21px;
  font-weight: 400;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-answer {
  max-width: 760px;
  padding: 0 0 22px;
  color: var(--muted);
}

.faq-answer p {
  margin: 0;
}

.faq-answer ol,
.faq-answer ul {
  margin: 10px 0 0;
  padding-left: 22px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #050609;
}

.footer-inner {
  display: flex;
  min-height: 180px;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  padding-block: 34px;
}

.footer-brand {
  color: var(--muted);
  font-size: 13px;
}

.footer-brand strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

.footer-links a {
  font-size: 13px;
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

@media (max-width: 820px) {
  .content-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .side-panel {
    position: static;
    order: -1;
  }

  .topic-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 680px) {
  .header-inner {
    min-height: 62px;
  }

  .brand span {
    display: none;
  }

  .site-nav {
    gap: 1px;
  }

  .site-nav a {
    padding-inline: 8px;
    font-size: 13px;
  }

  .site-nav .language-link {
    margin-left: 2px;
  }

  .main-inner {
    padding-block: 48px 70px;
  }

  .product-intro {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 18px;
    padding-bottom: 40px;
  }

  .product-intro img {
    width: 76px;
    height: 76px;
    border-radius: 16px;
  }

  .eyebrow {
    margin-bottom: 5px;
  }

  h1 {
    font-size: 36px;
  }

  .subtitle {
    margin-top: 6px;
    font-size: 16px;
  }

  .lede {
    font-size: 16px;
  }

  .action-grid {
    grid-template-columns: 1fr;
    margin-bottom: 54px;
  }

  .action-card {
    min-height: 128px;
  }

  .section {
    padding-block: 42px;
  }

  .footer-inner {
    min-height: 160px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

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

  .action-card {
    transition: none;
  }
}