/* css/components.css - 深度美化升级版 */

/* ========== 图标按钮 ========== */
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--border-radius-sm);
  color: var(--text-muted);
  transition: all var(--transition-fast);
  position: relative;
}

.icon-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.icon-btn:active {
  transform: translateY(0);
  background: var(--bg-active);
}

.icon-btn.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* 刷新按钮旋转动画 */
.icon-btn.spinning svg {
  animation: spin 0.6s ease-in-out;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========== 加载状态 ========== */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px var(--spacing-xl);
  gap: var(--spacing-lg);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.loading-container p {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

/* ========== 空状态 ========== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px var(--spacing-xl);
  gap: var(--spacing-md);
  color: var(--text-muted);
  animation: fadeInUp 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.empty-state .empty-icon {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: var(--gradient-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  border: 1px solid var(--border-color-light);
}

.empty-state .empty-icon svg {
  width: 36px;
  height: 36px;
  opacity: 0.35;
  color: var(--color-primary);
}

.empty-state p {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
}

.empty-state .empty-hint {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  opacity: 0.7;
}

/* ========== 模态框 - 精致弹窗 ========== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: modalBgIn 0.25s ease;
}

@keyframes modalBgIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  position: relative;
  width: 92%;
  max-width: 960px;
  max-height: 88vh;
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-2xl);
  overflow: hidden;
  animation: modalSlideIn 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  border: 1px solid var(--border-color-light);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color-light);
  background: var(--bg-primary);
}

.modal-header h3 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  margin-right: var(--spacing-md);
}

.close-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  font-size: 20px;
  line-height: 1;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.close-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
  max-height: calc(88vh - 65px);
  overflow: auto;
}

/* ========== 预览下载 ========== */
.preview-download {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  padding: 60px var(--spacing-xl);
  text-align: center;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--gradient-primary);
  color: var(--text-inverse);
  border-radius: var(--border-radius-full);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-strong);
  color: var(--text-inverse);
}

.download-btn:active {
  transform: translateY(0);
}

.download-btn svg {
  width: 18px;
  height: 18px;
}

/* ========== Toast通知 ========== */
.toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  border-left: 3px solid var(--color-primary);
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  animation: toastIn 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  max-width: 360px;
  pointer-events: auto;
  border: 1px solid var(--border-color-light);
}

.toast.toast-error {
  border-left-color: var(--color-danger);
}

.toast.toast-success {
  border-left-color: var(--color-success);
}

.toast.toast-warning {
  border-left-color: var(--color-warning);
}

.toast.toast-out {
  animation: toastOut 0.25s ease forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px) scale(0.95); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0) scale(1); }
  to { opacity: 0; transform: translateX(40px) scale(0.95); }
}

/* ========== 骨架屏 ========== */
.skeleton {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-hover) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--border-radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-file {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 14px var(--spacing-md);
  border-radius: var(--border-radius);
}

.skeleton-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  flex-shrink: 0;
}

.skeleton-text {
  height: 14px;
  border-radius: 4px;
}

.skeleton-text.short { width: 40%; }
.skeleton-text.medium { width: 60%; }
.skeleton-text.long { width: 80%; }

/* ========== 高亮文本 ========== */
mark {
  background: linear-gradient(120deg, rgba(254, 240, 138, 0.5) 0%, rgba(254, 240, 138, 0.25) 100%);
  color: inherit;
  padding: 1px 4px;
  border-radius: 3px;
  font-weight: var(--font-weight-semibold);
}

/* ========== 离线/错误提示横幅 ========== */
.offline-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px var(--spacing-xl);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(245, 158, 11, 0.05));
  border-bottom: 1px solid rgba(245, 158, 11, 0.2);
  color: #b45309;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  animation: fadeIn 0.3s ease;
}

.offline-banner svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ========== 快捷键提示 ========== */
.kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 6px;
  font-size: 11px;
  font-family: var(--font-family);
  color: var(--text-muted);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  line-height: 1.4;
}