/* ============================================================
 * login-admin.css — 管理端登录页 (login.ftl)
 * 分屏布局：左侧品牌展示区 + 右侧登录表单区
 * ============================================================ */

/* ---------- 分屏容器 ---------- */
.login-admin-wrapper {
  display: flex;
  min-height: 100vh;
  overflow: hidden;
}

/* ---------- 左侧: 品牌展示区 ---------- */
.login-admin-brand {
  flex: 0 0 45%;
  position: relative;
  background: linear-gradient(rgba(15, 23, 42, 0.72), rgba(15, 23, 42, 0.82)),
              url('/static/img/login_bg.jpg') center / cover no-repeat;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 50px;
  color: #ffffff;
  text-align: center;
  overflow: hidden;
}

/* 品牌区顶部装饰线 */
.login-admin-brand::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 0 0 3px 3px;
}

.login-admin-brand .brand-logo {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 36px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-admin-brand h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 10px;
  color: #ffffff;
}

.login-admin-brand .brand-tagline {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
  max-width: 320px;
}

.login-admin-brand .brand-features {
  display: flex;
  gap: 28px;
  margin-top: 40px;
}

.login-admin-brand .brand-feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  min-width: 60px;
}

.login-admin-brand .brand-feature-item .feature-icon {
  font-size: 24px;
  color: rgba(255, 255, 255, 0.9);
}

/* ---------- 右侧: 表单区 ---------- */
.login-admin-form-side {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #f5f7fa;
  position: relative;
  padding: 40px 20px;
}

.login-admin-form-side .login-card {
  /* login-common.css provides base card styles */
}

/* 管理端卡片顶部强调条 */
.login-admin-form-side .login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 40px;
  right: 40px;
  height: 3px;
  background: #1E9FFF;
  border-radius: 0 0 3px 3px;
}

/* ---------- 响应式: 中等屏幕 ---------- */
@media (max-width: 1024px) {
  .login-admin-brand {
    flex: 0 0 42%;
    padding: 50px 36px;
  }

  .login-admin-brand h1 {
    font-size: 24px;
  }

  .login-admin-brand .brand-features {
    gap: 20px;
  }
}

/* ---------- 响应式: 平板 / 小屏笔记本 ---------- */
@media (max-width: 768px) {
  .login-admin-wrapper {
    flex-direction: column;
  }

  .login-admin-brand {
    flex: 0 0 auto;
    min-height: 170px;
    padding: 30px 24px;
    justify-content: center;
  }

  .login-admin-brand::before {
    width: 40px;
    height: 2px;
  }

  .login-admin-brand .brand-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    font-size: 24px;
    margin-bottom: 12px;
  }

  .login-admin-brand h1 {
    font-size: 20px;
  }

  .login-admin-brand .brand-tagline {
    font-size: 13px;
  }

  .login-admin-brand .brand-features {
    display: none;
  }

  .login-admin-form-side {
    flex: 1;
    justify-content: flex-start;
    padding-top: 32px;
    background: #f5f7fa;
  }

  .login-admin-form-side .login-card {
    margin-top: -20px;
  }
}

/* ---------- 响应式: 手机 / PDA ---------- */
@media (max-width: 480px) {
  .login-admin-brand {
    min-height: 140px;
    padding: 24px 16px;
  }

  .login-admin-brand h1 {
    font-size: 18px;
  }

  .login-admin-brand .brand-tagline {
    font-size: 12px;
  }

  .login-admin-brand .brand-logo {
    width: 40px;
    height: 40px;
    font-size: 20px;
    margin-bottom: 8px;
  }

  .login-admin-form-side {
    padding-top: 16px;
  }

  .login-admin-form-side .login-card {
    margin-top: -16px;
  }

  .login-admin-form-side .login-card::before {
    left: 20px;
    right: 20px;
  }
}