:root {
  --cs-accent: #009493;
  --cs-accent-soft: rgba(0, 148, 147, 0.12);
  --cs-text: #1a1a1a;
  --cs-muted: #6b7280;
  --cs-surface: #ffffff;
  --cs-font: system-ui, -apple-system, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

.cs-body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--cs-font);
  color: var(--cs-text);
  display: grid;
  place-items: center;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.cs-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, var(--cs-accent-soft), transparent 55%),
    radial-gradient(ellipse 50% 40% at 100% 100%, rgba(0, 148, 147, 0.08), transparent 50%),
    linear-gradient(165deg, #f8faf9 0%, #f0f4f3 45%, #fafafa 100%);
}

.cs-card {
  position: relative;
  z-index: 1;
  width: min(100%, 420px);
  padding: 2.5rem 2rem 2rem;
  text-align: center;
  background: var(--cs-surface);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 20px;
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 24px 48px rgba(0, 0, 0, 0.06);
}

.cs-logo {
  display: block;
  margin: 0 auto;
  width: min(100%, 185px);
  height: auto;
}

.cs-domain {
  margin: 1rem 0 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cs-accent);
}

.cs-title {
  margin: 0.35rem 0 0.75rem;
  font-size: clamp(1.5rem, 4vw, 1.75rem);
  font-weight: 700;
  line-height: 1.2;
}

.cs-lead {
  margin: 0 0 1.5rem;
  font-size: 15px;
  line-height: 1.55;
  color: var(--cs-muted);
  max-width: 32ch;
  margin-left: auto;
  margin-right: auto;
}

.cs-badge {
  display: inline-block;
  margin: 0 0 1.5rem;
  padding: 0.35rem 0.85rem;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cs-accent);
  background: var(--cs-accent-soft);
  border-radius: 999px;
}

.cs-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--cs-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.cs-link:hover {
  border-bottom-color: var(--cs-accent);
}

.cs-link:focus-visible {
  outline: 2px solid var(--cs-accent);
  outline-offset: 3px;
  border-radius: 2px;
}