:root {
  --page: #f0f7ff;
  --section: rgba(255, 255, 255, 0.88);
  --input: #ffffff;
  --text: #101825;
  --muted: #4a617f;
  --accent: #0f73ff;
  --accent-strong: #0558e6;
  --border: #b8d4fa;
  --shadow: rgba(46, 97, 199, 0.1);
  --icon-surface: #fbfdff;
  --radius: 8px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #030406;
    --section: #06070a;
    --input: #090708;
    --text: #fff2f0;
    --muted: #db7a6e;
    --accent: #ff2e1f;
    --accent-strong: #ad0808;
    --border: #c71f14;
    --shadow: transparent;
    --icon-surface: #1f0809;
  }
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--page);
}

body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 340px),
    var(--page);
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--accent);
  font-weight: 700;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.shell {
  width: min(100% - 32px, 980px);
  margin: 0 auto;
}

.site-header {
  padding: 28px 0 14px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  align-items: end;
  gap: 20px;
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.app-icon {
  width: clamp(64px, 10vw, 92px);
  height: clamp(64px, 10vw, 92px);
  border-radius: 8px;
  box-shadow: 0 14px 30px var(--shadow);
  flex: 0 0 auto;
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 6vw, 4.8rem);
  line-height: 1;
  letter-spacing: 0;
}

.hero-panel {
  padding: 16px;
  border: 1px solid color-mix(in srgb, var(--border) 64%, transparent);
  border-radius: var(--radius);
  background: var(--section);
  box-shadow: 0 16px 30px var(--shadow);
}

.hero-panel p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.signal-card {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.signal-dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 16px color-mix(in srgb, var(--accent) 58%, transparent);
}

.signal-bars {
  display: inline-grid;
  grid-template-columns: repeat(4, 5px);
  align-items: end;
  gap: 4px;
  height: 22px;
}

.signal-bars span {
  display: block;
  width: 5px;
  border-radius: 4px;
  background: var(--accent);
}

.signal-bars span:nth-child(1) { height: 8px; opacity: 0.36; }
.signal-bars span:nth-child(2) { height: 13px; opacity: 0.52; }
.signal-bars span:nth-child(3) { height: 18px; opacity: 0.78; }
.signal-bars span:nth-child(4) { height: 22px; }

.signal-card strong {
  min-width: 0;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.3;
}

.language-switcher {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  padding: 12px 0;
  background: color-mix(in srgb, var(--page) 88%, transparent);
  backdrop-filter: blur(16px);
}

.language-button {
  min-height: 40px;
  border: 1px solid color-mix(in srgb, var(--border) 48%, transparent);
  border-radius: var(--radius);
  background: var(--input);
  color: var(--muted);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 800;
  cursor: pointer;
}

.language-button:hover,
.language-button:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.language-button.is-active {
  border-color: color-mix(in srgb, var(--accent) 70%, transparent);
  background: color-mix(in srgb, var(--accent) 13%, var(--input));
  color: var(--accent);
}

.policy {
  display: none;
  margin: 8px 0 48px;
  padding: 22px;
  border: 1px solid color-mix(in srgb, var(--border) 56%, transparent);
  border-radius: var(--radius);
  background: var(--section);
  box-shadow: 0 18px 34px var(--shadow);
}

.policy.is-active {
  display: block;
}

.policy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 10px;
}

.policy-meta span {
  padding: 5px 9px;
  border: 1px solid color-mix(in srgb, var(--border) 42%, transparent);
  border-radius: 7px;
  background: var(--input);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

section {
  padding: 16px 0;
  border-top: 1px solid color-mix(in srgb, var(--border) 34%, transparent);
}

section:first-of-type {
  border-top: 0;
}

h2 {
  margin: 0 0 8px;
  color: var(--text);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.35;
  letter-spacing: 0;
}

p {
  margin: 0;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0;
}

.feature-grid span {
  min-width: 0;
  padding: 7px 9px;
  border: 1px solid color-mix(in srgb, var(--border) 42%, transparent);
  border-radius: 7px;
  background: color-mix(in srgb, var(--accent) 8%, var(--input));
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 750;
  line-height: 1.35;
}

.policy-note {
  font-size: 0.94rem;
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 24px, 980px);
  }

  .site-header {
    padding-top: 20px;
  }

  .hero {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .hero-panel {
    padding: 14px;
  }

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

  .policy {
    padding: 16px;
  }

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

@media (max-width: 390px) {
  body {
    font-size: 15px;
  }

  .brand-row {
    gap: 12px;
  }

  .language-button {
    font-size: 0.82rem;
  }
}