* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, sans-serif;
  color: #ffffff;
  background: radial-gradient(circle at top, #1d4ed8, #020617 55%);
}

.app {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: min(720px, 100%);
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  background: rgba(15, 23, 42, 0.88);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(16px);
}

.badge {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  color: #bfdbfe;
  background: rgba(59, 130, 246, 0.18);
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 18px 0 8px;
  font-size: clamp(28px, 5vw, 44px);
}

.subtitle {
  margin: 0 0 24px;
  color: #cbd5e1;
  line-height: 1.7;
}

.search-box {
  display: flex;
  gap: 12px;
}

input {
  flex: 1;
  min-width: 0;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  outline: none;
  color: #ffffff;
  background: rgba(2, 6, 23, 0.7);
  font-size: 16px;
}

input:focus {
  border-color: #60a5fa;
}

button {
  padding: 14px 22px;
  border: 0;
  border-radius: 14px;
  color: #ffffff;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.message {
  min-height: 24px;
  margin-top: 18px;
  color: #fde68a;
}

.result {
  display: none;
  max-height: 420px;
  overflow: auto;
  margin: 14px 0 0;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  color: #dbeafe;
  background: rgba(2, 6, 23, 0.82);
  direction: ltr;
  text-align: left;
  white-space: pre-wrap;
}

@media (max-width: 560px) {
  .card {
    padding: 22px;
  }

  .search-box {
    flex-direction: column;
  }

  button {
    width: 100%;
  }
}