/* 전체 레이아웃 */
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #f9fafc;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}

/* 컨테이너 */
.container {
  background: #fff;
  margin-top: 50px;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  width: 100%;
  max-width: 1000px;
}

/* 제목 */
h1, h2 {
  text-align: center;
  color: #333;
  margin-bottom: 20px;
}

/* 폼 */
form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

label {
  font-weight: bold;
  margin-bottom: 5px;
}

input[type="text"], input[type="password"] {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
  width: 100%;
}

button {
  background: #4a90e2;
  border: none;
  padding: 10px;
  color: #fff;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  background: #357abd;
}

/* 메시지 */
.message {
  text-align: center;
  font-weight: bold;
  margin-top: 10px;
}

/* 테이블 */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

th, td {
  padding: 10px;
  border-bottom: 1px solid #ddd;
  text-align: center;
}

th {
  background: #f3f6fa;
  color: #333;
}