:root {
  color-scheme: light;
  --bg: #fbfdfd; --bg-soft: #f3f7f8; --surface: #fff;
  --text: #18323a; --text-soft: #526970; --teal: #086b70;
  --teal-soft: #e4f3f2; --line: #d4e1e3; --header-height: 76px;
}
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #11191c; --bg-soft: #1a2529; --surface: #202d31;
  --text: #edf7f7; --text-soft: #b3c5c8; --teal: #6ed5d1;
  --teal-soft: #1c4142; --line: #3a4c51;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 20px); }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--teal); }
button, select { font: inherit; }
button { cursor: pointer; }
img { display: block; max-width: 100%; height: auto; }
svg { width: 22px; height: 22px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
h1,h2,h3,p { margin-top: 0; }
h1,h2,h3 { text-wrap: balance; }
h2 { font-size: clamp(1.8rem,3.2vw,2.6rem); line-height: 1.2; letter-spacing: -.035em; margin-bottom: 18px; }
h3 { font-size: 1rem; line-height: 1.4; margin-bottom: 6px; }
p { color: var(--text-soft); }
.container { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.section { padding: 84px 0; border-bottom: 1px solid var(--line); }
.section-heading { max-width: 660px; }
.section-label { color: var(--teal); font-size: .85rem; font-weight: 650; margin-bottom: 12px; }
.centered { margin-inline: auto; text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip-link { position: fixed; z-index: 200; top: -80px; left: 16px; padding: 12px; background: var(--surface); }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
[hidden] { display: none !important; }
.site-header { height: var(--header-height); position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--line); background: var(--bg); }
.nav-wrap, .nav-actions, .desktop-nav { display: flex; align-items: center; gap: 24px; }
.nav-wrap { height: 100%; justify-content: space-between; }
.nav-actions { gap: 8px; }
.desktop-nav { margin-left: auto; font-size: .88rem; font-weight: 600; }
.desktop-nav a, .mobile-nav a { display: inline-flex; align-items: center; gap: 7px; }
.desktop-nav a svg, .mobile-nav a svg { width: 17px; height: 17px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 1.15rem; font-weight: 750; white-space: nowrap; }
.brand img { width: 38px; height: 38px; }
.language-control { display: flex; align-items: center; gap: 4px; padding-left: 9px; height: 42px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); }
.language-control svg { width: 17px; }
.language-control select { color: var(--text); background: var(--surface); border: 0; max-width: 88px; height: 100%; font-size: .85rem; }
.icon-button { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); color: var(--text); }
.icon-button:hover { background: var(--teal-soft); }
.back-to-top { position: fixed; right: 20px; bottom: 20px; z-index: 90; border-color: var(--teal); color: var(--teal); }
.back-to-top svg { transform: rotate(180deg); }
.menu-open .back-to-top { display: none; }
.sun, .menu-button { display: none; }
[data-theme="dark"] .sun { display: block; }
[data-theme="dark"] .moon { display: none; }
.mobile-nav { display: none; }
.button { min-height: 44px; display: inline-flex; justify-content: center; align-items: center; gap: 10px; padding: 10px 17px; border: 1px solid var(--line); border-radius: 4px; font-size: .9rem; font-weight: 650; line-height: 1.4; text-align: center; }
.button-primary { background: #086b70; border-color: #086b70; color: #fff; }
.button-primary:hover { background: #06575b; color: #fff; }
.button-secondary, .button-outline, .button-light { background: var(--surface); color: var(--text); }
.button-secondary:hover,.button-outline:hover,.button-light:hover { background: var(--teal-soft); border-color: var(--teal); }
.button-large { min-height: 50px; padding: 13px 18px; }
.hero { padding: 76px 0 84px; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.hero h1 { font-size: clamp(2.6rem,4.3vw,3.8rem); line-height: 1.12; letter-spacing: -.05em; margin: 0 0 24px; }
.hero h1 em { font-style: normal; color: var(--teal); }
.hero-copy > p:not(.release-label) { font-size: 1.1rem; max-width: 520px; }
.release-label { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; color: var(--teal); font-size: .85rem; font-weight: 700; margin-bottom: 24px; }
.release-label span { color: var(--text-soft); font-size: .78rem; font-weight: 500; }
.hero-actions, .download-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions { margin-top: 28px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 14px 22px; padding: 0; margin: 26px 0 0; list-style: none; }
.hero-points li { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--text-soft); }
.hero-points svg { width: 17px; color: var(--teal); }
.hero-media { min-width: 0; }
.hero-product-main { border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.hero-product-main img { width: 100%; }
.hero-product-main .popup-dark { display: none; }
[data-theme="dark"] .hero-product-main .popup-light { display: none; }
[data-theme="dark"] .hero-product-main .popup-dark { display: block; }
.hero-product-note { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 16px; color: var(--text-soft); font-size: .8rem; }
.hero-product-note svg { color: var(--teal); width: 17px; }
.feature-intro, .showcase, .video { background: var(--bg-soft); }
.feature-intro .section-heading { margin-bottom: 40px; }
.feature-stage { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 48px; }
.feature-visual img, .device-stage img { width: 100%; border: 1px solid var(--line); border-radius: 7px; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.feature-item { display: flex; gap: 12px; border-bottom: 1px solid var(--line); padding-bottom: 22px; }
.feature-item > svg { color: var(--teal); width: 21px; margin-top: 2px; }
.feature-item p { font-size: .88rem; line-height: 1.6; margin-bottom: 0; }
.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; padding: 0; list-style: none; margin: 44px 0 0; }
.steps li { position: relative; padding: 26px 0 0; border-top: 2px solid var(--line); }
.step-number { color: var(--teal); font-weight: 750; font-size: 1.4rem; }
.steps li > svg { position: absolute; right: 0; top: 30px; color: var(--teal); }
.steps h3 { margin-top: 16px; }
.steps p { font-size: .93rem; margin: 0; }
.formats-grid, .faq-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 72px; }
.format-list article { display: grid; grid-template-columns: 24px 1fr; column-gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.format-list article:first-child { padding-top: 0; }
.format-list svg { color: var(--teal); }
.format-list p { font-size: .9rem; margin-bottom: 10px; }
.format-list code { grid-column: 2; color: var(--teal); font-size: .78rem; overflow-wrap: anywhere; }
.showcase-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 48px; align-items: center; }
.theme-pair { display: flex; gap: 20px; font-size: .85rem; }
.theme-pair > span { display: flex; align-items: center; gap: 8px; }
.privacy-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; }
.privacy-points { display: grid; gap: 24px; }
.privacy-points article { display: flex; gap: 16px; }
.privacy-points svg { color: var(--teal); }
.privacy-points p { font-size: .93rem; margin: 0; }
.privacy-art { display: none; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0; }
.faq-item button { display: flex; align-items: center; justify-content: space-between; gap: 20px; width: 100%; padding: 20px 0; border: 0; background: none; color: var(--text); text-align: left; font-weight: 650; }
.faq-item button:hover { color: var(--teal); }
.faq-item button[aria-expanded="true"] svg { transform: rotate(45deg); }
.faq-answer p { font-size: .94rem; margin: 0 0 22px; }
.video-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 72px; align-items: center; }
.text-link { color: var(--teal); text-decoration: underline; text-underline-offset: 4px; }
.video-player { aspect-ratio: 16/9; background: var(--surface); border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.video-player button { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 14px; width: 100%; height: 100%; padding: 20px; background: none; border: 0; color: var(--text); font-weight: 650; }
.video-player button:hover { background: var(--teal-soft); }
.play-icon { display: grid; place-items: center; width: 56px; height: 48px; border-radius: 7px; background: #086b70; color: #fff; }
.video-player small { font-size: .8rem; color: var(--text-soft); font-weight: 400; }
.video-player iframe { display: block; width: 100%; height: 100%; border: 0; }
.support { padding: 48px 0; }
.support-panel, .cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.support-copy h2 { font-size: 1.6rem; margin-bottom: 8px; }
.support-copy p:last-child { margin: 0; max-width: 610px; }
.support-actions { display: flex; flex-wrap: wrap; gap: 12px; flex-shrink: 0; }
.support-link { display: inline-flex; align-items: center; gap: 8px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 4px; font-size: .85rem; }
.support-link:hover { background: var(--teal-soft); }
.final-cta { background: var(--teal-soft); padding: 60px 0; }
.cta-panel > div:first-child { max-width: 530px; }
.cta-panel h2 { font-size: 2rem; }
.cta-panel p { margin: 0; }
.download-actions { flex-direction: column; flex-shrink: 0; }
.site-footer { padding: 32px 0 24px; }
.footer-community,.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-community { padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.footer-rating p { margin: 0 0 8px; color: var(--text); font-size: .94rem; font-weight: 600; }
.rating-stars { color: #9c6405; letter-spacing: 2px; margin-right: 8px; }
[data-theme="dark"] .rating-stars { color: #f2c166; }
.footer-rate-links,.footer-links { display: flex; flex-wrap: wrap; gap: 12px 22px; font-size: .84rem; }
.footer-rate-links a { color: var(--teal); }
.footer-rate-links a:hover,.footer-links a:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-discover { display: inline-flex; align-items: center; gap: 10px; color: var(--teal); font-size: .9rem; font-weight: 650; padding-block: 10px; }
.footer-discover:hover { text-decoration: underline; text-underline-offset: 4px; }
.footer-discover svg { width: 18px; }
.footer-bottom { padding-top: 24px; }
.footer-bottom .brand { font-size: 1rem; }
.footer-bottom .brand img { width: 32px; height: 32px; }
.footer-credit { margin: 0; font-size: .82rem; }
.footer-credit a { color: var(--teal); }
.footer-links { color: var(--text-soft); }
.heart-pulse { display: inline-block; color: #d83248; animation: heartbeat 1.3s ease-in-out infinite; }
@keyframes heartbeat { 0%,35%,100% { transform: scale(1); } 15% { transform: scale(1.2); } 23% { transform: scale(1.06); } }
@media (max-width: 1100px) {
  .desktop-nav, .header-cta { display: none; }
  .menu-button { display: grid; }
  .mobile-nav.is-open { display: grid; position: fixed; inset: var(--header-height) 0 0; padding: 24px; align-content: start; gap: 8px; background: var(--bg); overflow-y: auto; }
  .mobile-nav a { padding: 14px; border-bottom: 1px solid var(--line); }
  .hero-grid { gap: 36px; }
  .feature-stage { grid-template-columns: 1fr; }
  .feature-visual { max-width: 820px; }
  .support-panel { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 760px) {
  :root { --header-height: 68px; }
  .container { width: calc(100% - 32px); }
  .section { padding: 56px 0; }
  .nav-wrap { gap: 12px; }
  .brand { gap: 7px; font-size: 1rem; }
  .brand img { width: 32px; height: 32px; }
  .language-control { padding-left: 0; }
  .language-control svg { display: none; }
  .language-control select { max-width: 65px; }
  .hero-grid,.formats-grid,.showcase-grid,.privacy-panel,.faq-grid,.video-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero h1 { font-size: clamp(2.5rem,9vw,3.5rem); }
  .hero-actions .button { flex: 1 1 180px; }
  .hero-media { max-width: 520px; margin-inline: auto; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .feature-list { gap: 24px; }
  .cta-panel { align-items: stretch; flex-direction: column; }
}
@media (max-width: 380px) {
  .nav-actions { gap: 4px; }
  .icon-button { width: 36px; }
  .brand { font-size: .9rem; }
  .brand img { width: 28px; height: 28px; }
  .feature-list { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}