/**
 * =============================================================================
 * 文件: login.css (现代化改造版)
 * =============================================================================
 */

.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  flex-grow: 1; /* 确保在 main 区域内垂直居中 */
  padding: 20px 0;
}

.login-box {
  width: 100%;
  max-width: 450px;
  padding: 32px 40px;
  background: var(--container-bg);
  color: var(--text-main);
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0,0,0,0.05);
  animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.login-box h2 {
  text-align: center;
  font-size: 1.8em;
  margin: 0 0 24px 0;
  font-weight: 600;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text-main);
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--btn-bg);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--btn-bg) 20%, transparent);
}

.options-group {
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
  font-size: 14px;
}

.checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
}
.checkbox-wrapper input[type="checkbox"] {
  width: 16px;
  height: 16px;
}
.checkbox-wrapper label {
  cursor: pointer;
  user-select: none;
}

#loginBtn {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  font-weight: bold;
}

.links-group {
  margin-top: 24px;
  font-size: 14px;
  text-align: center;
  color: #666;
}
.links-group a {
  color: var(--btn-bg);
  text-decoration: none;
  font-weight: 500;
}
.links-group a:hover {
  text-decoration: underline;
}
.links-group span {
  display: block;
  margin-top: 8px;
}

/* 提示框的现代化样式 */
.message-box {
  padding: 12px;
  margin-top: 20px;
  border-radius: 8px;
  text-align: center;
  font-size: 14px;
  font-weight: 500;
  display: none; /* 默认隐藏 */
}
.message-box.error {
  display: block;
  background-color: rgba(217, 48, 37, 0.1); /* 红色背景，带透明度 */
  color: #d93025;
  border: 1px solid rgba(217, 48, 37, 0.2);
}
.message-box.success {
  display: block;
  background-color: rgba(21, 128, 61, 0.1);
  color: #15803d;
  border: 1px solid rgba(21, 128, 61, 0.2);
}