/* ============================================================
   XinYuan Platform - Reusable Component Styles
   BEM naming: .xy-{component}__{element}--{modifier}
   Reusable in Vue/Vite production builds.
   ============================================================ */

/* ── Buttons ── */
.xy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 40px;
  padding: 0 var(--space-5);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  border: 1px solid transparent;
}
.xy-btn--primary {
  color: var(--color-text-inverse);
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.xy-btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.xy-btn--primary:active { background: var(--color-primary-active); border-color: var(--color-primary-active); }

.xy-btn--outline {
  color: var(--color-primary);
  background: var(--color-bg-white);
  border-color: var(--color-primary);
}
.xy-btn--outline:hover { background: var(--color-primary-light); }

.xy-btn--ghost {
  color: var(--color-text-secondary);
  background: transparent;
  border-color: var(--color-border);
}
.xy-btn--ghost:hover { color: var(--color-text-primary); border-color: var(--color-border-dark); }

.xy-btn--text {
  color: var(--color-text-link);
  background: transparent;
  border: none;
  padding: 0;
  height: auto;
}
.xy-btn--text:hover { color: var(--color-text-link-hover); }

.xy-btn--sm { height: 32px; padding: 0 var(--space-3); font-size: var(--font-size-sm); }
.xy-btn--lg { height: 48px; padding: 0 var(--space-8); font-size: var(--font-size-md); }
.xy-btn--block { display: flex; width: 100%; }

.xy-btn:disabled, .xy-btn--disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Input ── */
.xy-input {
  display: flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--space-3);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
}
.xy-input:focus-within {
  border-color: var(--color-primary);
}
.xy-input input {
  flex: 1;
  width: 100%;
  height: 100%;
}
.xy-input input::placeholder {
  color: var(--color-text-placeholder);
}
.xy-input--lg { height: 48px; font-size: var(--font-size-md); }
.xy-input--error { border-color: var(--color-error); }
.xy-input__prefix,
.xy-input__suffix {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  white-space: nowrap;
}
.xy-input__prefix { margin-right: var(--space-2); }
.xy-input__suffix { margin-left: var(--space-2); }

/* ── Textarea ── */
.xy-textarea {
  width: 100%;
  padding: var(--space-3);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  resize: vertical;
  min-height: 100px;
  transition: border-color var(--transition-fast);
}
.xy-textarea:focus { border-color: var(--color-primary); }

/* ── Card ── */
.xy-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.xy-card__header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.xy-card__title {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}
.xy-card__body {
  padding: var(--space-5);
}
.xy-card--hover:hover {
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition-normal);
}

/* ── Tag / Badge ── */
.xy-tag {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 var(--space-2);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.xy-tag--primary { color: var(--color-primary); background: var(--color-primary-light); }
.xy-tag--success { color: var(--color-success); background: var(--color-success-light); }
.xy-tag--warning { color: var(--color-warning); background: var(--color-warning-light); }
.xy-tag--error { color: var(--color-error); background: var(--color-error-light); }
.xy-tag--info { color: var(--color-info); background: var(--color-info-light); }

.xy-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-inverse);
  background: var(--color-error);
  border-radius: var(--radius-full);
}

/* ── Modal / Dialog ── */
.xy-modal-mask {
  position: fixed;
  inset: 0;
  background: var(--color-bg-mask);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}
.xy-modal-mask.active {
  opacity: 1;
  visibility: visible;
}
.xy-modal {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 90vw;
  max-height: 85vh;
  overflow: auto;
}
.xy-modal__header {
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.xy-modal__title { font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold); }
.xy-modal__close {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  cursor: pointer;
  font-size: 20px;
}
.xy-modal__close:hover { background: var(--color-bg-hover); color: var(--color-text-primary); }
.xy-modal__body { padding: var(--space-5); }
.xy-modal__footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* ── Toast ── */
.xy-toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  padding: var(--space-3) var(--space-5);
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-toast);
  font-size: var(--font-size-base);
  opacity: 0;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.xy-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.xy-toast--success { border-left: 3px solid var(--color-success); }
.xy-toast--error { border-left: 3px solid var(--color-error); }
.xy-toast--warning { border-left: 3px solid var(--color-warning); }
.xy-toast--info { border-left: 3px solid var(--color-info); }

/* ── Listing Card ── */
.xy-listing {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border-light);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.xy-listing:hover { background: var(--color-bg-light); }
.xy-listing__img {
  width: 140px;
  height: 105px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: var(--color-bg-page);
  flex-shrink: 0;
}
.xy-listing__info { flex: 1; min-width: 0; display: flex; flex-direction: column; justify-content: space-between; }
.xy-listing__title {
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.xy-listing__title:hover { color: var(--color-primary); }
.xy-listing__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.xy-listing__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}
.xy-listing__price {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* ── Category Grid ── */
.xy-cat-grid {
  display: grid;
  gap: var(--space-4);
}
.xy-cat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}
.xy-cat-item:hover { background: var(--color-bg-hover); }
.xy-cat-item__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.xy-cat-item__name {
  font-size: var(--font-size-sm);
  color: var(--color-text-regular);
  text-align: center;
}

/* ── Search Bar ── */
.xy-search {
  display: flex;
  align-items: center;
  height: 44px;
  background: var(--color-bg-white);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.xy-search__input {
  flex: 1;
  height: 100%;
  padding: 0 var(--space-4);
  font-size: var(--font-size-base);
}
.xy-search__input::placeholder { color: var(--color-text-placeholder); }
.xy-search__btn {
  height: 100%;
  padding: 0 var(--space-6);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.xy-search__btn:hover { background: var(--color-primary-hover); }

/* ── Tab Bar ── */
.xy-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-white);
}
.xy-tabs__item {
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.xy-tabs__item:hover { color: var(--color-text-primary); }
.xy-tabs__item.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}

/* ── Empty State ── */
.xy-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-5);
  color: var(--color-text-tertiary);
}
.xy-empty__icon { font-size: 48px; margin-bottom: var(--space-4); opacity: 0.5; }
.xy-empty__text { font-size: var(--font-size-base); }

/* ── Pagination ── */
.xy-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-5) 0;
}
.xy-pagination__item {
  min-width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-2);
  font-size: var(--font-size-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.xy-pagination__item:hover { border-color: var(--color-primary); color: var(--color-primary); }
.xy-pagination__item.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* ── Avatar ── */
.xy-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  background: var(--color-bg-page);
}
.xy-avatar--sm { width: 32px; height: 32px; }
.xy-avatar--lg { width: 56px; height: 56px; }
.xy-avatar--xl { width: 80px; height: 80px; }

/* ── Form Layout ── */
.xy-form-item {
  margin-bottom: var(--space-5);
}
.xy-form-item__label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-base);
  color: var(--color-text-regular);
  font-weight: var(--font-weight-medium);
}
.xy-form-item__label .required {
  color: var(--color-error);
  margin-right: var(--space-1);
}
.xy-form-item__error {
  margin-top: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--color-error);
}
.xy-form-item__help {
  margin-top: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* ── Select / Dropdown ── */
.xy-select {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 var(--space-8) 0 var(--space-3);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}
.xy-select:hover { border-color: var(--color-border-dark); }
.xy-select::after {
  content: "▾";
  position: absolute;
  right: var(--space-3);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

/* ── Utility Classes ── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--color-primary) !important; }
.text-success { color: var(--color-success) !important; }
.text-error { color: var(--color-error) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-tertiary { color: var(--color-text-tertiary) !important; }
.font-bold { font-weight: var(--font-weight-bold) !important; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.flex { display: flex; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.hidden { display: none !important; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Loading Spinner ── */
.xy-spinner {
  display: inline-block;
  width: 36px;
  height: 36px;
  position: relative;
}
.xy-spinner::before,
.xy-spinner::after {
  content: '';
  position: absolute;
  border-radius: 50%;
}
.xy-spinner::before {
  inset: 0;
  border: 3px solid var(--color-border-light);
}
.xy-spinner::after {
  inset: 0;
  border: 3px solid transparent;
  border-top-color: var(--color-primary);
  animation: xy-spin 0.8s linear infinite;
}
@keyframes xy-spin {
  to { transform: rotate(360deg); }
}
.xy-spinner--sm { width: 20px; height: 20px; }
.xy-spinner--sm::before, .xy-spinner--sm::after { border-width: 2px; }
.xy-spinner--lg { width: 48px; height: 48px; }
.xy-spinner--lg::before, .xy-spinner--lg::after { border-width: 4px; }

/* ── Splash / Loading Screen ── */
.xy-splash {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--color-bg-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.xy-splash.fade-out {
  opacity: 0;
  visibility: hidden;
}
.xy-splash__logo {
  width: 80px;
  height: 80px;
  animation: xy-splash-pop 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes xy-splash-pop {
  0% { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}
.xy-splash__brand {
  text-align: center;
  animation: xy-splash-up 0.6s ease 0.2s both;
}
@keyframes xy-splash-up {
  0% { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}
.xy-splash__name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.xy-splash__slogan-zh {
  font-size: 14px;
  color: var(--color-text-regular);
  margin-bottom: 4px;
  font-weight: 500;
}
.xy-splash__slogan-vi {
  font-size: 13px;
  color: var(--color-text-secondary);
}
.xy-splash__spinner {
  animation: xy-splash-up 0.6s ease 0.5s both;
}

/* ── Data Loading Placeholder (skeleton) ── */
.xy-skeleton {
  background: linear-gradient(90deg, var(--color-bg-page) 25%, var(--color-bg-hover) 50%, var(--color-bg-page) 75%);
  background-size: 200% 100%;
  animation: xy-shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes xy-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.xy-skeleton--text { height: 14px; width: 60%; margin-bottom: 8px; }
.xy-skeleton--title { height: 18px; width: 80%; margin-bottom: 10px; }
.xy-skeleton--img { width: 140px; height: 105px; flex-shrink: 0; }
.xy-skeleton--circle { width: 48px; height: 48px; border-radius: 50%; }
.xy-skeleton--card {
  display: flex;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-bg-white);
  border-bottom: 1px solid var(--color-border-light);
}
.xy-skeleton--card .xy-skeleton--info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}