body {
  font-family: sans-serif;
  margin: 0;
  background: #f0f2f5;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh; /* 세로 가운데 정렬 */
}

.container {
  width: 100%;
  max-width: 400px;
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  text-align: center; /* 텍스트 가운데 */
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  text-align: center; /* 입력값 가운데 정렬 */
}

button {
  width: 100%;
  padding: 12px;
  background: #007bff;
  border: none;
  color: white;
  font-size: 16px;
  border-radius: 4px;
  cursor: pointer;
}

button:hover {
  background: #0056b3;
}

.link {
  margin-top: 10px;
  text-align: center;
}

label {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
}

@media (max-width: 480px) {
  body {
    height: auto;
    padding: 30px 10px;
    align-items: flex-start;
  }

  .container {
    margin-top: 30px;
    padding: 20px;
  }
}


.form-group {
  margin-bottom: 15px;
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
}

.form-group.checkbox {
  display: flex;
  align-items: center;
  gap: 6px;
}


.id-check-wrap {
  display: flex;
  gap: 8px;
  align-items: stretch; /* ← 핵심: input, 버튼 높이 동일하게! */
}

.id-check-wrap input {
  flex: 1;
  padding: 12px;
  font-size: 14px;
  box-sizing: border-box;
}

.btn-check-id {
  width: 100px; /* ❗예쁜 고정 너비 (또는 비율 → flex-basis 사용 가능) */
  padding: 12px;
  background-color: #ff9800;
  color: white;
  border: none;
  border-radius: 4px;
  font-weight: bold;
  cursor: pointer;
  white-space: nowrap;
  font-size: 14px;
  height: 42px; /* ✅ input 높이와 맞춰주기 */
}

.btn-check-id:hover {
  background-color: #e08800;
}


.no-scroll {
  position: fixed;
  left: 0;
  right: 0;
  overflow: hidden;
  width: 100%;
}