:root {
  color-scheme: dark;
  --bg: #101311;
  --surface: #181d1a;
  --surface-raised: #202722;
  --ink: #f3f5ef;
  --muted: #a7b0a9;
  --line: #313932;
  --accent: #62c987;
  --accent-dark: #8be0a6;
  --accent-soft: rgba(98, 201, 135, 0.16);
  --gold: #e6a93a;
  --rose: #b95b6d;
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.34);
  --max-width: 1060px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(243, 245, 239, 0.08);
  background: rgba(16, 19, 17, 0.86);
  backdrop-filter: blur(16px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(100% - 32px, var(--max-width));
  min-height: 72px;
  margin: 0 auto;
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 6px;
  font-weight: 750;
  letter-spacing: 0;
}

.brand-wordmark {
  display: block;
  width: 126px;
  height: auto;
}

.nav-links {
  gap: 6px;
  color: var(--muted);
  font-size: 0.94rem;
}

.nav-links a {
  border-radius: 8px;
  padding: 10px 12px;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(243, 245, 239, 0.08);
  color: var(--ink);
  outline: none;
}

.nav-links .nav-button {
  margin-left: 6px;
  background: var(--accent);
  color: #07130c;
  font-weight: 700;
}

.nav-links .nav-button:hover,
.nav-links .nav-button:focus-visible {
  background: var(--accent-dark);
  color: #07130c;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 10px;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section {
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  padding: 86px 0;
  scroll-margin-top: 88px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 440px);
  align-items: center;
  gap: 62px;
  min-height: calc(100vh - 72px);
  padding-top: 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: clamp(3.2rem, 8vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  max-width: 720px;
  margin-bottom: 0;
  font-size: clamp(2rem, 4.8vw, 4.2rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.08rem;
}

.intro {
  max-width: 610px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 18px;
  margin-top: 34px;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  border-radius: 8px;
  background: var(--accent);
  color: #07130c;
  padding: 0 22px;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(98, 201, 135, 0.24);
}

.download-button:hover,
.download-button:focus-visible {
  background: var(--accent-dark);
  outline: none;
}

.download-note {
  color: var(--muted);
  font-size: 0.94rem;
}

.app-preview {
  border: 1px solid rgba(245, 244, 241, 0.16);
  border-radius: 8px;
  background: #1c1c1e;
  box-shadow: 0 24px 58px rgba(0, 0, 0, 0.18);
  overflow: hidden;
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 14px;
  background: #1c1c1e;
}

.window-bar span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--rose);
}

.window-bar span:nth-child(2) {
  background: var(--gold);
}

.window-bar span:nth-child(3) {
  background: #58ad7b;
}

.preview-panel {
  padding: 20px;
  background: #1c1c1e;
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  color: #a7a7ac;
}

.preview-header strong {
  color: #f2f2f7;
}

.notice {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  border: 1px solid #343436;
  border-radius: 8px;
  background: #242426;
  padding: 14px;
  color: #f2f2f7;
}

.notice + .notice {
  margin-top: 10px;
}

.notice.is-active {
  border-color: #0a84ff;
  background: #1f2938;
}

.notice p {
  margin-bottom: 0;
  color: #a7a7ac;
  font-size: 0.92rem;
}

.notice-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #2b2b2d;
  color: #c7c7cc;
  font-size: 0.86rem;
  font-weight: 850;
}

.notice.is-active .notice-icon {
  background: rgba(10, 132, 255, 0.18);
  color: #0a84ff;
}

.benefit-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 0.86rem;
  font-weight: 850;
}

.section-heading {
  display: grid;
  gap: 8px;
  margin-bottom: 38px;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.benefit {
  min-height: 232px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 22px;
}

.benefit p,
.release-item p,
.release-highlights,
.faq p {
  color: var(--muted);
}

.release-list {
  display: grid;
  gap: 14px;
}

.release-item {
  display: grid;
  grid-template-columns: 150px 180px 1fr;
  gap: 24px;
  align-items: start;
  border-top: 1px solid var(--line);
  padding: 22px 0;
}

.release-item time {
  color: var(--muted);
  font-size: 0.94rem;
}

.release-item p {
  margin-bottom: 0;
}

.release-link {
  color: var(--ink);
}

.release-link:hover,
.release-link:focus-visible {
  color: var(--accent-dark);
  outline: none;
}

.release-body {
  display: grid;
  gap: 14px;
}

.release-highlights {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
}

.release-highlights li::marker {
  color: var(--accent);
}

.release-changelog a {
  color: var(--accent-dark);
  overflow-wrap: anywhere;
}

.inline-link {
  color: var(--accent-dark);
  font-weight: 750;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.inline-link:hover,
.inline-link:focus-visible {
  color: var(--ink);
  outline: none;
}

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

details {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}

summary {
  cursor: pointer;
  font-size: 1.08rem;
  font-weight: 800;
}

summary::marker {
  color: var(--accent);
}

details p {
  max-width: 720px;
  margin: 12px 0 0;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 32px, var(--max-width));
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
}

.footer-wordmark {
  display: block;
  width: 108px;
  height: auto;
}

@media (max-width: 860px) {
  .nav {
    min-height: 64px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    padding: 8px;
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links .nav-button {
    margin-left: 0;
    text-align: center;
  }

  .section {
    padding: 64px 0;
    scroll-margin-top: 78px;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 42px;
    min-height: auto;
    padding-top: 54px;
  }

  .benefit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .release-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

@media (max-width: 560px) {
  .section,
  .nav,
  .footer {
    width: min(100% - 24px, var(--max-width));
  }

  h1 {
    font-size: 3.1rem;
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
  }

  .download-button {
    width: 100%;
  }

  .app-preview {
    margin: 0 -2px;
  }

  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .benefit {
    min-height: auto;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}