:root {
  --bg: #0b1220;
  --card: #121b2e;
  --text: #e7eefc;
  --muted: #97a8cc;
  --accent: #2fb3b6;
  --accent-2: #237e93;
  --danger: #ff6b6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 10%, #1f2b45 0%, var(--bg) 50%);
}

.app {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(760px, 100%);
  background: linear-gradient(180deg, #16233b 0%, var(--card) 100%);
  border: 1px solid #2a3a5f;
  border-radius: 16px;
  padding: 24px;
}

h1 {
  margin: 0;
  font-size: 1.8rem;
}

.muted {
  color: var(--muted);
  margin: 8px 0 20px;
}

.grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

label {
  color: var(--muted);
  font-size: 0.9rem;
}

input,
select,
button {
  border-radius: 10px;
  border: 1px solid #34476f;
  background: #0e1628;
  color: var(--text);
  padding: 10px 12px;
  font-size: 0.95rem;
}

button {
  border: 0;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  margin-top: 4px;
}

.status {
  min-height: 20px;
}

.status.error {
  color: var(--danger);
}

.result {
  margin-top: 8px;
  padding: 12px;
  border-radius: 10px;
  background: #0e1628;
  border: 1px solid #34476f;
}

.result a {
  color: #89f7e8;
}

@media (max-width: 700px) {
  .grid {
    grid-template-columns: 1fr;
  }
}