/* auth-carousel.css - modal đăng nhập/đăng ký sạch, không đè layout trang */
.modal-overlay-bg {
  position: fixed;
  inset: 0;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 82px 16px 24px;
  background: rgba(20, 20, 20, .58);
  z-index: 9999;
  backdrop-filter: blur(3px);
}
.modal-overlay-bg.show { display: flex !important; }
.auth-modal {
  width: min(440px, 100%);
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 22px 60px rgba(0, 0, 0, .28);
  position: relative;
  overflow: hidden;
  animation: authIn .22s ease;
}
.auth-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: #fff5f5;
  color: #c92127;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}
.auth-close:hover { background: #c92127; color: #fff; }
.auth-tabs {
  display: flex;
  justify-content: center;
  gap: 42px;
  padding: 18px 46px 0;
  border-bottom: 1px solid #eee;
}
.auth-tabs .tab-item {
  border: 0;
  background: transparent;
  padding: 12px 0 11px;
  color: #777;
  cursor: pointer;
  font-weight: 800;
  font-size: 15px;
}
.auth-tabs .tab-item.active { color: #c92127; border-bottom: 3px solid #c92127; }
.auth-window { width: 100%; overflow: hidden; }
.auth-carousel { display: flex; width: 300%; transition: transform .3s ease; }
.auth-slide {
  width: 33.333%;
  flex: 0 0 33.333%;
  box-sizing: border-box;
  padding: 24px 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.auth-slide h3 { margin: 0 0 8px; color: #222; }
.auth-slide label { font-size: 13px; font-weight: 700; color: #333; }
.auth-slide input {
  width: 100%;
  min-height: 42px;
  box-sizing: border-box;
  padding: 11px 12px;
  border: 1px solid #ddd;
  border-radius: 10px;
  outline: none;
  font-size: 14px;
  background: #fff;
}
.auth-slide input:focus { border-color: #c92127; box-shadow: 0 0 0 3px rgba(201,33,39,.10); }
.password-line { display: flex; align-items: center; border: 1px solid #ddd; border-radius: 10px; overflow: hidden; background: #fff; }
.password-line input { border: 0; border-radius: 0; flex: 1; }
.password-line button { border: 0; background: #fff; color: #c92127; padding: 0 12px; min-height: 42px; font-weight: 700; cursor: pointer; }
.auth-primary, .auth-secondary {
  min-height: 42px;
  border-radius: 10px;
  font-weight: 800;
  cursor: pointer;
  transition: .18s ease;
}
.auth-primary { background: #c92127; color: #fff; border: 1px solid #c92127; margin-top: 8px; }
.auth-primary:hover { background: #a9151f; }
.auth-secondary { background: #fff; color: #c92127; border: 1px solid #f1a3a6; }
.auth-secondary:hover { border-color: #c92127; background: #fff6f6; }
.auth-hint { margin: 4px 0 0; font-size: 12px; color: #777; text-align: center; }
.error-box { background: #fff2f2; color: #c92127; border: 1px solid #ffcaca; padding: 10px; border-radius: 10px; text-align: center; font-size: 13px; }
@keyframes authIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
@media(max-width: 520px) {
  .modal-overlay-bg { padding-top: 56px; }
  .auth-tabs { gap: 24px; }
  .auth-slide { padding: 20px; }
}