:root {
  color-scheme: light;
  --ink: #17232b;
  --muted: #66757d;
  --line: #dce6e8;
  --surface: rgba(255, 255, 255, 0.94);
  --brand: #46aeb0;
  --brand-dark: #257d80;
  --success: #2a8a64;
  --danger: #bf4a4a;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 15%, rgba(70, 174, 176, 0.2), transparent 31rem),
    radial-gradient(circle at 90% 85%, rgba(36, 105, 123, 0.14), transparent 28rem),
    #f3f7f8;
}

.site-header {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand img { display: block; }

.language-picker select {
  min-height: 42px;
  padding: 0 36px 0 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}

main {
  display: grid;
  place-items: center;
  padding: 38px 20px 64px;
}

.card {
  width: min(560px, 100%);
  padding: clamp(30px, 7vw, 54px);
  text-align: center;
  border: 1px solid rgba(203, 218, 221, 0.9);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 24px 70px rgba(26, 61, 70, 0.13);
}

.state-icon {
  width: 74px;
  height: 74px;
  margin: 0 auto 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(70, 174, 176, 0.12);
  color: var(--brand-dark);
  font-size: 2.2rem;
  font-weight: 800;
}

.state-icon.success { background: rgba(42, 138, 100, 0.12); color: var(--success); }
.state-icon.error { background: rgba(191, 74, 74, 0.11); color: var(--danger); }

.spinner {
  width: 31px;
  height: 31px;
  border: 3px solid rgba(37, 125, 128, 0.2);
  border-top-color: var(--brand-dark);
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.eyebrow {
  margin: 0 0 10px;
  color: var(--brand-dark);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(1.75rem, 5vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.message {
  max-width: 430px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.65;
}

.details {
  margin-top: 22px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f7fafb;
  color: var(--muted);
  line-height: 1.5;
}

.button {
  min-height: 48px;
  margin-top: 28px;
  padding: 13px 21px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--brand-dark);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover { background: #1e686b; transform: translateY(-1px); }
.button:focus-visible, select:focus-visible, a:focus-visible { outline: 3px solid rgba(70, 174, 176, 0.35); outline-offset: 3px; }

.support { margin: 26px 0 0; color: var(--muted); font-size: 0.9rem; }
.support a { color: var(--brand-dark); font-weight: 650; }

footer { padding: 0 20px 28px; text-align: center; color: #819096; font-size: 0.85rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 520px) {
  .site-header { width: calc(100% - 28px); min-height: 70px; }
  .brand span { font-size: 1.08rem; }
  .brand img { width: 36px; height: 36px; }
  .language-picker select { max-width: 122px; }
  main { padding: 22px 14px 44px; }
  .card { border-radius: 19px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}