* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 214, 0, 0.08), transparent 35%),
    radial-gradient(circle at 80% 10%, rgba(255, 214, 0, 0.05), transparent 30%),
    linear-gradient(160deg, #0b0f14 0%, #121922 55%, #0f141c 100%);
  color: #f8fafc;
}

.container {
  width: min(90vw, 480px);
  padding: 0 2rem 2rem;
  border-radius: 14px;
  background: linear-gradient(180deg, #171f2a 0%, #121922 100%);
  border: 1px solid #2b3745;
  border-top: 4px solid #ffd600;
  box-shadow: 0 18px 35px rgba(0, 0, 0, 0.45);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.container::before,
.container::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  border: 2px solid rgba(255, 214, 0, 0.22);
  pointer-events: none;
}

.container::before {
  top: 16px;
  left: 16px;
  border-right: none;
  border-bottom: none;
}

.container::after {
  right: 16px;
  bottom: 16px;
  border-left: none;
  border-top: none;
}

.hero-strip {
  margin: 0 -2rem 1.2rem;
  padding: 0.8rem 1rem;
  background: linear-gradient(90deg, #ffd600 0%, #ffe057 60%, #ffd600 100%);
  color: #0f172a;
  border-bottom: 1px solid rgba(15, 23, 42, 0.25);
}

.hero-kicker {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin-top: 0.25rem;
  margin-bottom: 0.4rem;
  font-size: 2rem;
  letter-spacing: 0.02em;
  color: #ffd600;
  text-transform: uppercase;
}

#subtitle {
  margin-top: 0;
  margin-bottom: 1rem;
  color: #d1d9e6;
}

.language-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.4rem;
  padding: 0.25rem 0.25rem 0.5rem;
  flex-wrap: wrap;
}

button.language-tab {
  border: 1px solid #3a4757;
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  color: #cdd6e3;
  background: #0f141c;
  box-shadow: none;
}

button.language-tab:hover {
  background: #1c2532;
  color: #f8fafc;
}

button.language-tab:focus-visible {
  outline: 2px solid #ffd600;
  outline-offset: 2px;
}

button.language-tab.active {
  border-color: #ffd600;
  color: #0f172a;
  background: #ffd600;
}

.lynx-image {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  margin: 0 auto 1.2rem;
  border-radius: 10px;
  border: 1px solid #3b4754;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

button:not(.language-tab) {
  border: none;
  border-radius: 8px;
  padding: 0.8rem 1.2rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  cursor: pointer;
  color: #0f172a;
  background: #ffd600;
  box-shadow: 0 6px 16px rgba(255, 214, 0, 0.25);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

button:not(.language-tab):hover {
  background: #ffdf33;
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(255, 214, 0, 0.3);
}

button:not(.language-tab):active {
  transform: translateY(0);
}

.message {
  min-height: 1.5rem;
  margin-bottom: 0;
  margin-top: 1.1rem;
  font-weight: 600;
  color: #ffe980;
}