/**
 * PDF Web 登录页样式
 * 现代化设计 - 与网站主题一致
 * 主色调：蓝色 (#2563eb)
 */

/* ========================================
 * 登录页布局
 * ======================================== */
.container-flex {
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - 80px);
  width: 100%;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  /* 简洁的浅色渐变背景 - 与网站风格一致 */
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
  position: relative;
}

/* 背景装饰 - 淡雅的圆形光晕 */
.container-flex::before {
  content: '';
  position: absolute;
  top: 10%;
  left: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.container-flex::after {
  content: '';
  position: absolute;
  bottom: 10%;
  right: 10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

/* ========================================
 * 登录表单容器 - 简洁卡片
 * ======================================== */
main.form-signin.text-center {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  padding: 48px 40px;
  background: #ffffff;
  border-radius: 16px;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06),
    0 20px 25px -5px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
  z-index: 1;
  animation: fadeIn 0.5s ease-out;
}

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

/* ========================================
 * Logo 和标题
 * ======================================== */
main.form-signin .logo-icon {
  width: 88px;
  height: 88px;
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
  transition: transform 0.3s ease;
}

main.form-signin .logo-icon:hover {
  transform: scale(1.05);
}

main.form-signin h1 {
  font-size: 28px;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

main.form-signin h2 {
  font-size: 15px;
  font-weight: 400;
  color: #6b7280;
  margin-bottom: 28px;
}

/* ========================================
 * 表单输入框
 * ======================================== */
main.form-signin .form-floating {
  position: relative;
  margin-bottom: 0;
}

main.form-signin .form-floating > .form-control {
  height: 56px;
  padding: 18px 16px 8px;
  font-size: 15px;
  font-weight: 500;
  border: 1.5px solid #e5e7eb;
  border-radius: 10px;
  background-color: #f9fafb;
  color: #1f2937;
  transition: all 0.25s ease;
}

main.form-signin .form-floating > .form-control:focus {
  border-color: #2563eb;
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  outline: none;
}

main.form-signin .form-floating > .form-control::placeholder {
  color: transparent;
}

main.form-signin .form-floating > label {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  padding: 18px 16px;
  pointer-events: none;
  border: 1px solid transparent;
  transform-origin: 0 0;
  transition: all 0.2s ease;
  color: #9ca3af;
  font-size: 15px;
}

main.form-signin .form-floating > .form-control:focus ~ label,
main.form-signin .form-floating > .form-control:not(:placeholder-shown) ~ label {
  opacity: 1;
  transform: scale(0.75) translateY(-8px) translateX(4px);
  color: #2563eb;
  font-weight: 600;
}

/* 用户名输入框 - 顶部圆角 */
main.form-signin input[type="text"]#username {
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
  margin-bottom: -1.5px;
}

/* 密码输入框 - 底部圆角 */
main.form-signin input[type="password"]#password {
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

/* ========================================
 * 验证码区域
 * ======================================== */
main.form-signin .captcha-group {
  margin-top: 16px;
}

main.form-signin .captcha-group .input-group {
  border-radius: 10px;
  overflow: hidden;
  border: 1.5px solid #e5e7eb;
  background: #f9fafb;
  transition: all 0.25s ease;
}

main.form-signin .captcha-group .input-group:focus-within {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  background: #ffffff;
}

main.form-signin .captcha-group .form-control {
  border: none;
  height: 50px;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 500;
  background-color: transparent;
  color: #1f2937;
}

main.form-signin .captcha-group .form-control:focus {
  box-shadow: none;
  outline: none;
}

main.form-signin .captcha-group .btn-outline-secondary {
  border: none;
  border-left: 1.5px solid #e5e7eb;
  padding: 8px 12px;
  background: #ffffff;
  transition: all 0.25s ease;
}

main.form-signin .captcha-group .btn-outline-secondary:hover {
  background: #f3f4f6;
}

main.form-signin .captcha-group #myImage {
  height: 38px;
  border-radius: 6px;
}

/* ========================================
 * 记住我复选框
 * ======================================== */
main.form-signin .checkbox {
  margin: 20px 0;
  text-align: left;
}

main.form-signin .checkbox label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  color: #4b5563;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s ease;
}

main.form-signin .checkbox label:hover {
  color: #1f2937;
}

main.form-signin .checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: #2563eb;
  cursor: pointer;
  border-radius: 4px;
}

/* ========================================
 * 登录按钮 - 使用网站主色调
 * ======================================== */
main.form-signin button.btn.btn-lg.btn-primary[type="submit"],
main.form-signin .btn-primary {
  height: 52px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border-radius: 10px;
  background: #2563eb;
  border: none;
  color: #ffffff;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px -3px rgba(37, 99, 235, 0.4);
}

main.form-signin button.btn.btn-lg.btn-primary[type="submit"]:hover,
main.form-signin .btn-primary:hover {
  background: #1d4ed8;
  box-shadow: 0 6px 20px -3px rgba(37, 99, 235, 0.5);
  transform: translateY(-2px);
}

main.form-signin button.btn.btn-lg.btn-primary[type="submit"]:active,
main.form-signin .btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px -3px rgba(37, 99, 235, 0.4);
}

/* ========================================
 * 提示消息
 * ======================================== */
main.form-signin .alert {
  padding: 14px 16px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 500;
  border: none;
}

main.form-signin .alert-success {
  background: #d1fae5;
  color: #065f46;
}

main.form-signin .alert-danger,
main.form-signin .text-danger {
  color: #dc2626;
}

main.form-signin .text-danger.text-center {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 500;
}

/* ========================================
 * 深色模式适配
 * ======================================== */
.dark-mode .container-flex,
[data-theme="dark"] .container-flex {
  background: linear-gradient(135deg, #111827 0%, #1f2937 50%, #111827 100%);
}

.dark-mode .container-flex::before,
[data-theme="dark"] .container-flex::before {
  background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
}

.dark-mode .container-flex::after,
[data-theme="dark"] .container-flex::after {
  background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
}

.dark-mode main.form-signin.text-center,
[data-theme="dark"] main.form-signin.text-center {
  background: #1f2937;
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.3),
    0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

.dark-mode main.form-signin h1,
[data-theme="dark"] main.form-signin h1 {
  color: #f3f4f6;
}

.dark-mode main.form-signin h2,
[data-theme="dark"] main.form-signin h2 {
  color: #9ca3af;
}

.dark-mode main.form-signin .form-floating > .form-control,
[data-theme="dark"] main.form-signin .form-floating > .form-control {
  background-color: #374151;
  border-color: #4b5563;
  color: #f3f4f6;
}

.dark-mode main.form-signin .form-floating > .form-control:focus,
[data-theme="dark"] main.form-signin .form-floating > .form-control:focus {
  border-color: #3b82f6;
  background-color: #374151;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.dark-mode main.form-signin .form-floating > label,
[data-theme="dark"] main.form-signin .form-floating > label {
  color: #9ca3af;
}

.dark-mode main.form-signin .captcha-group .input-group,
[data-theme="dark"] main.form-signin .captcha-group .input-group {
  background: #374151;
  border-color: #4b5563;
}

.dark-mode main.form-signin .captcha-group .btn-outline-secondary,
[data-theme="dark"] main.form-signin .captcha-group .btn-outline-secondary {
  background: #4b5563;
  border-color: #4b5563;
}

.dark-mode main.form-signin .checkbox label,
[data-theme="dark"] main.form-signin .checkbox label {
  color: #9ca3af;
}

/* 深色模式自动填充 */
.dark-mode input:-webkit-autofill,
[data-theme="dark"] input:-webkit-autofill {
  -webkit-text-fill-color: #f3f4f6 !important;
  -webkit-box-shadow: 0 0 0 1000px #374151 inset !important;
}

/* ========================================
 * 响应式设计
 * ======================================== */
@media (max-width: 480px) {
  .container-flex {
    padding: 20px 16px;
  }

  main.form-signin.text-center {
    padding: 32px 24px;
    border-radius: 14px;
    max-width: calc(100% - 32px);
  }

  main.form-signin .logo-icon {
    width: 72px;
    height: 72px;
  }

  main.form-signin h1 {
    font-size: 24px;
  }

  main.form-signin button.btn.btn-lg.btn-primary[type="submit"] {
    height: 48px;
    font-size: 15px;
  }
}

/* ========================================
 * 隐藏原有背景
 * ======================================== */
.your-container-class {
  display: none !important;
}

.pattern-bg {
  display: none !important;
}

/* ========================================
 * 页脚
 * ======================================== */
.footer-bottom {
  margin-top: auto;
}