/* 背景設定 */
body,
html {
  height: 100%;
  margin: 0;
  padding: 0;
  background: url("../imgs/football_court.jpg") no-repeat center center fixed;
  background-size: cover;
  font-family: Arial, sans-serif;
}

/* 黑色遮罩半透明 */
.overlay {
  background-color: rgba(30, 30, 30, 0.8);
  height: 100%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

/* 登入表單容器 */
.login-container {
  position: relative;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1;
}

/* 表單卡片 */
.login-box {
  background-color: rgba(255, 255, 255, 0.9);
  padding: 30px 40px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.4);
  width: 80%;
  max-width: 400px;
}

.login-logo {
  display: block;
  margin: 0 auto 50px;
  max-width: 200px;
  height: auto;
}

.login-box h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #333;
}

/* 表單欄位 */
.login-box input[type="password"] {
  width: -webkit-fill-available;
  padding: 12px;
  margin: 10px 0 20px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 16px;
}

.login-box button {
  width: 100%;
  padding: 12px;
  background-color: #006400;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.login-box button:hover {
  background-color: #004d00;
}

.login-box p {
  text-align: center;
  font-size: 14px;
  margin-top: 15px;
  color: #555;
}

.login-box a {
  color: #006400;
  text-decoration: none;
}

@media (max-width: 480px) {
  .login-box {
    padding: 20px;
  }
}