:root {
  color-scheme: light;
  --ink: #101828;
  --muted: #5f6b7a;
  --blue: #1769e0;
  --blue-dark: #0d4da9;
  --blue-soft: #eaf3ff;
  --surface: #ffffff;
  --surface-alt: #f5f7fa;
  --line: #dde3ea;
  --navy: #07162c;
  --orange: #ff7800;
  --shadow: 0 18px 48px rgba(16, 42, 76, 0.09);
  --radius: 24px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  overflow-wrap: break-word;
}

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

a {
  color: var(--blue-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--blue);
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(23, 105, 224, 0.35);
  outline-offset: 4px;
  border-radius: 6px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--navy);
  color: #fff;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(221, 227, 234, 0.86);
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  backdrop-filter: saturate(160%) blur(18px);
}

.nav-wrap {
  width: min(calc(100% - 32px), var(--max));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 19px;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  box-shadow: 0 4px 14px rgba(7, 22, 44, 0.16);
}

.language-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px 14px;
  font-size: 14px;
}

.language-nav a {
  color: var(--muted);
  text-decoration: none;
}

.language-nav a[aria-current="page"] {
  color: var(--blue-dark);
  font-weight: 700;
}

.container {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 8%, rgba(23, 105, 224, 0.13), transparent 31rem),
    radial-gradient(circle at 8% 94%, rgba(255, 120, 0, 0.09), transparent 25rem),
    linear-gradient(180deg, #fff 0%, #f7faff 100%);
}

.hero-grid {
  min-height: 680px;
  padding: 88px 0 96px;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: 68px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  color: var(--ink);
  line-height: 1.14;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: clamp(46px, 7vw, 78px);
  font-weight: 800;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4.5vw, 46px);
  font-weight: 780;
}

h3 {
  margin-bottom: 9px;
  font-size: 21px;
  font-weight: 720;
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 18px;
}

.hero-copy {
  max-width: 670px;
  margin-bottom: 30px;
  color: #425168;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 48px;
  padding: 11px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(23, 105, 224, 0.2);
}

.button:hover {
  background: var(--blue-dark);
  color: #fff;
}

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  box-shadow: none;
}

.hero-product {
  position: relative;
  min-height: 440px;
  display: grid;
  place-items: center;
}

.icon-stage {
  position: relative;
  width: min(82vw, 344px);
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 35%;
  background: rgba(255, 255, 255, 0.56);
  box-shadow: var(--shadow);
}

.icon-stage img {
  border-radius: 23%;
  box-shadow: 0 26px 70px rgba(7, 22, 44, 0.24);
}

.audio-card {
  position: absolute;
  right: -5px;
  bottom: 20px;
  width: 230px;
  padding: 17px 18px;
  border: 1px solid rgba(221, 227, 234, 0.82);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.audio-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 700;
}

.waveform {
  height: 40px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.waveform span {
  width: 4px;
  height: var(--h);
  border-radius: 99px;
  background: linear-gradient(180deg, #438ff2, #1769e0);
}

.section {
  padding: 92px 0;
}

.section.alt {
  background: var(--surface-alt);
}

.section-heading {
  max-width: 700px;
  margin-bottom: 40px;
}

.section-heading p,
.feature-card p,
.privacy-callout p,
.page-intro,
.legal-copy p,
.legal-copy li,
.faq-list p {
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card {
  min-height: 244px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 12px 30px rgba(16, 42, 76, 0.05);
}

.feature-number {
  width: 42px;
  height: 42px;
  margin-bottom: 44px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--blue-soft);
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 800;
}

.privacy-callout {
  padding: 44px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  border: 1px solid #cfe0f7;
  border-radius: 30px;
  background: linear-gradient(135deg, #f3f8ff, #fff);
}

.privacy-callout h2 {
  font-size: clamp(28px, 4vw, 40px);
}

.privacy-points {
  min-width: 260px;
  display: grid;
  gap: 12px;
}

.privacy-point {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 650;
}

.privacy-point::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border: 4px solid #cfe4ff;
  border-radius: 50%;
  background: var(--blue);
}

.page-hero {
  padding: 78px 0 48px;
  background: linear-gradient(180deg, #f7faff, #fff);
}

.page-hero h1 {
  margin-bottom: 18px;
  font-size: clamp(40px, 6vw, 62px);
}

.page-intro {
  max-width: 760px;
  font-size: 20px;
}

.updated {
  margin-bottom: 12px;
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.content-layout {
  width: min(calc(100% - 32px), 860px);
  margin: 0 auto;
  padding: 46px 0 96px;
}

.notice {
  margin-bottom: 34px;
  padding: 22px 24px;
  border-left: 4px solid var(--blue);
  border-radius: 0 16px 16px 0;
  background: var(--blue-soft);
}

.notice p:last-child,
.legal-copy p:last-child {
  margin-bottom: 0;
}

.legal-copy section {
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 88px;
}

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

.legal-copy h2 {
  font-size: 29px;
}

.legal-copy ul,
.legal-copy ol {
  margin: 0 0 18px;
  padding-left: 24px;
}

.support-card {
  margin-bottom: 42px;
  padding: 30px;
  border: 1px solid #cfe0f7;
  border-radius: var(--radius);
  background: #f5f9ff;
}

.support-email {
  font-size: clamp(20px, 4vw, 27px);
  font-weight: 760;
}

.faq-title {
  margin-bottom: 22px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.faq-list summary {
  padding: 20px 50px 20px 20px;
  position: relative;
  cursor: pointer;
  color: var(--ink);
  font-weight: 720;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 17px;
  right: 20px;
  color: var(--blue-dark);
  font-size: 24px;
  font-weight: 400;
}

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

.faq-list p {
  padding: 0 20px 20px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--navy);
  color: #cad5e4;
}

.footer-wrap {
  padding: 48px 0 36px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: start;
}

.footer-brand {
  margin-bottom: 8px;
  color: #fff;
  font-size: 20px;
  font-weight: 750;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 9px 24px;
}

.footer-links a {
  color: #e4ebf5;
  text-decoration: none;
}

.copyright {
  margin: 0;
  padding: 18px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #99a8bc;
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-grid {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 70px 0 82px;
  }

  .hero-product {
    min-height: 380px;
  }

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

  .privacy-callout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }

  .site-header {
    position: static;
  }

  .nav-wrap {
    min-height: 0;
    padding: 13px 0 12px;
    align-items: flex-start;
  }

  .brand {
    font-size: 17px;
  }

  .brand img {
    width: 32px;
    height: 32px;
  }

  .language-nav {
    max-width: 150px;
    gap: 3px 11px;
    font-size: 13px;
  }

  .hero-grid {
    padding: 54px 0 68px;
  }

  h1 {
    font-size: clamp(42px, 14vw, 58px);
  }

  .hero-copy {
    font-size: 18px;
  }

  .hero-actions,
  .hero-actions .button {
    width: 100%;
  }

  .hero-product {
    min-height: 330px;
  }

  .icon-stage {
    width: min(78vw, 280px);
  }

  .audio-card {
    right: 0;
    bottom: 0;
    width: 190px;
  }

  .section {
    padding: 68px 0;
  }

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

  .feature-card {
    min-height: 0;
  }

  .feature-number {
    margin-bottom: 28px;
  }

  .privacy-callout {
    padding: 28px 23px;
  }

  .privacy-points {
    min-width: 0;
  }

  .page-hero {
    padding: 54px 0 32px;
  }

  .page-hero h1 {
    font-size: clamp(38px, 12vw, 50px);
  }

  .page-intro {
    font-size: 18px;
  }

  .content-layout {
    padding: 34px 0 70px;
  }

  .support-card,
  .notice {
    padding: 22px;
  }

  .footer-wrap {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }
}

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