* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(135deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #833ab4 100%);
  color: #222;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

.shell {
  width: min(760px, calc(100% - 28px));
  margin: 0 auto;
  padding: 44px 0 70px;
}

.hero {
  text-align: center;
  color: #fff;
  margin-bottom: 28px;
}

.mark {
  width: 64px;
  height: 64px;
  display: inline-grid;
  place-items: center;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.32);
  font-weight: 900;
  font-size: 24px;
}

h1 {
  margin: 14px 0 8px;
  font-size: clamp(30px, 5vw, 46px);
  letter-spacing: 0;
}

.hero p {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: 16px;
}

.card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.25);
  padding: 28px;
}

label {
  display: block;
  margin-bottom: 10px;
  color: #777;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.search-row {
  display: flex;
  gap: 10px;
}

input {
  min-width: 0;
  flex: 1;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  padding: 14px 15px;
  outline: none;
  font: inherit;
}

input:focus {
  border-color: #dc2743;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 0 22px;
  background: linear-gradient(135deg, #f09433, #dc2743, #833ab4);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.db-status {
  margin: 14px 0 0;
  color: #6b7280;
  font-size: 14px;
}

.result {
  margin-top: 20px;
}

.box {
  border-radius: 10px;
  padding: 20px;
  border: 1px solid;
}

.box.success {
  background: #f0fff4;
  border-color: #68d391;
}

.box.warning {
  background: #fffdf0;
  border-color: #f6c90e;
}

.box.error {
  background: #fff5f5;
  border-color: #fc8181;
}

.badge {
  display: inline-block;
  margin-bottom: 10px;
  border-radius: 999px;
  background: #fff;
  color: #555;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.box h2 {
  margin: 0 0 8px;
  color: #dc2743;
  font-size: 24px;
}

a {
  color: #9d174d;
  word-break: break-all;
}

.converted {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  margin: 14px 0 0;
  padding: 12px 14px;
}

.converted span {
  display: block;
  color: #9ca3af;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.converted strong,
.converted a {
  display: block;
  margin-top: 5px;
  color: #222;
  font-size: 17px;
  font-weight: 800;
  word-break: break-word;
}

@media (max-width: 620px) {
  .search-row {
    grid-template-columns: 1fr;
    display: grid;
  }

  button {
    min-height: 48px;
  }
}