/* Windows 10 风格：直角、平面、系统字体（不加载任何远程字体） */
*,
*::before,
*::after {
  box-sizing: border-box;
  border-radius: 0 !important;
}

:root {
  --accent: #0078d4;
  --accent-hover: #106ebe;
  --accent-press: #005a9e;
  --bg: #f3f3f3;
  --surface: #ffffff;
  --text: #1a1a1a;
  --text-2: #4d4d4d;
  --border: #cccccc;
  --border-strong: #7a7a7a;
  --hover: #e5e5e5;
  --error: #a80000;
  --error-bg: #fde7e9;
  --warn: #7a4a00;
  --warn-bg: #fff4ce;
  --info-bg: #deecf9;
  --ok: #107c10;
  font-family: "Segoe UI", "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

:focus-visible {
  outline: 2px solid #000000;
  outline-offset: 1px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  margin: -1px;
  padding: 0;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 8px 12px;
  z-index: 10;
}
.skip-link:focus {
  left: 8px;
}

/* ---------- 顶栏 ---------- */
.appbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 8px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.app-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}
.config-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.config-status {
  color: var(--text-2);
  margin-right: 4px;
}

.privacy-note {
  margin: 0;
  padding: 6px 16px;
  font-size: 12px;
  color: var(--text-2);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.banner {
  margin: 8px 16px 0;
  padding: 8px 12px;
  border-left: 4px solid;
}
.banner ul {
  margin: 4px 0 0;
  padding-left: 20px;
}
.banner-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.banner-error {
  background: var(--error-bg);
  border-color: var(--error);
  color: var(--error);
}
.banner-warn {
  background: var(--warn-bg);
  border-color: #c19c00;
  color: var(--warn);
}

/* ---------- 按钮与表单 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  padding: 4px 16px;
  font: inherit;
  color: var(--text);
  background: #e1e1e1;
  border: 2px solid transparent;
  cursor: pointer;
  user-select: none;
}
.btn:hover:not(:disabled) {
  border-color: var(--border-strong);
}
.btn:active:not(:disabled) {
  background: #cccccc;
}
.btn:disabled {
  color: #8a8a8a;
  cursor: not-allowed;
}
.btn-primary {
  color: #ffffff;
  background: var(--accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}
.btn-primary:active:not(:disabled) {
  background: var(--accent-press);
}
.btn-primary:disabled {
  color: #f0f0f0;
  background: #9fb8cc;
}
.btn-small {
  min-height: 24px;
  padding: 0 8px;
}
.file-btn:focus-within {
  outline: 2px solid #000000;
  outline-offset: 1px;
}

select,
textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 2px solid var(--border-strong);
}
select {
  min-height: 32px;
  padding: 2px 8px;
}
select:hover,
textarea:hover {
  border-color: #333333;
}
select:focus,
textarea:focus {
  border-color: var(--accent);
  outline: none;
}
select:focus-visible,
textarea:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 0;
}

/* ---------- 语言栏 ---------- */
.langbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 8px 16px;
  padding: 12px 16px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.field label {
  font-size: 12px;
  color: var(--text-2);
}
.arrow {
  padding-bottom: 6px;
  color: var(--text-2);
}

/* ---------- 工作区 ---------- */
.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 16px;
  padding: 0 16px 16px;
  min-height: 0;
}
.pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 12px;
}
.pane-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.pane-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
}
.char-count {
  font-size: 12px;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.char-count[data-over="true"] {
  color: var(--error);
  font-weight: 600;
}

#source {
  flex: 1;
  width: 100%;
  min-height: 360px;
  padding: 8px 10px;
  resize: vertical;
  line-height: 1.6;
}
.source-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.source-actions {
  display: flex;
  gap: 8px;
}
#translate {
  min-width: 96px;
}
.submit-status {
  min-height: 1.5em;
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--text-2);
}
.submit-status[data-kind="error"] {
  color: var(--error);
}
.hint {
  font-size: 12px;
  color: var(--text-2);
}

/* ---------- 服务选择 ---------- */
.service-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 8px;
  padding: 0;
  border: 0;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  cursor: pointer;
}
.chip:hover {
  background: var(--hover);
}
.chip:has(input:checked) {
  border-color: var(--accent);
  background: var(--info-bg);
}
.chip:has(input:disabled) {
  color: #8a8a8a;
  cursor: not-allowed;
}
.chip input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--accent);
}
.picker-hint {
  width: 100%;
  margin: 0;
}

.task-banner {
  margin: 0 0 8px;
  padding: 4px 8px;
  font-size: 12px;
  background: var(--bg);
  border-left: 3px solid var(--border-strong);
}
.task-banner[data-stale="true"] {
  background: var(--warn-bg);
  border-color: #c19c00;
  color: var(--warn);
}

/* ---------- 结果卡片 ---------- */
.cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.card {
  border: 1px solid var(--border);
  border-left: 4px solid var(--border-strong);
  background: var(--surface);
}
.card.status-pending {
  border-left-color: var(--accent);
}
.card.status-success {
  border-left-color: var(--ok);
}
.card.status-incomplete {
  border-left-color: #c19c00;
}
.card.status-error {
  border-left-color: var(--error);
}
.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 12px;
  background: #fafafa;
  border-bottom: 1px solid var(--border);
}
.card-title-wrap {
  min-width: 0;
}
.card-title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  overflow-wrap: anywhere;
}
.card-meta {
  font-size: 12px;
  color: var(--text-2);
  overflow-wrap: anywhere;
}
.badge {
  flex-shrink: 0;
  padding: 0 8px;
  font-size: 12px;
  line-height: 20px;
  color: #ffffff;
  background: #6b6b6b;
}
.badge-pending {
  background: var(--accent);
}
.badge-success {
  background: var(--ok);
}
.badge-incomplete {
  background: #8a6100;
}
.badge-error {
  background: var(--error);
}
.badge-cancelled {
  background: #5c5c5c;
}
.card-body {
  padding: 10px 12px;
}
.output {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.6;
  user-select: text;
}
.placeholder {
  margin: 0;
  color: var(--text-2);
}
.alert {
  margin: 0 0 8px;
  padding: 6px 10px;
  border-left: 3px solid;
}
.alert p {
  margin: 0;
}
.alert .hint {
  margin-top: 4px;
}
.alert-error {
  background: var(--error-bg);
  border-color: var(--error);
  color: var(--error);
}
.alert-warn {
  background: var(--warn-bg);
  border-color: #c19c00;
  color: var(--warn);
}
.alert-info {
  background: var(--info-bg);
  border-color: var(--accent);
}
.error-detail {
  font-size: 12px;
  overflow-wrap: anywhere;
}
.issues {
  margin: 4px 0 0;
  padding-left: 18px;
  font-size: 12px;
}
.loading {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-2);
}
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid #c7e0f4;
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation-duration: 3s;
  }
}
.card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 10px;
}
.card-actions {
  display: flex;
  gap: 8px;
  margin-left: auto;
}
.time {
  font-size: 12px;
  color: var(--text-2);
}
.empty {
  padding: 24px 8px;
  text-align: center;
  color: var(--text-2);
}

/* ---------- 对话框 ---------- */
dialog {
  width: min(720px, calc(100vw - 32px));
  padding: 0;
  border: 1px solid var(--accent);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
dialog::backdrop {
  background: rgba(0, 0, 0, 0.4);
}
.dialog-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
}
.dialog-body h2 {
  margin: 0;
  font-size: 16px;
}
#paste-text {
  min-height: 280px;
  padding: 8px;
  font-family: Consolas, "Cascadia Mono", monospace;
  font-size: 13px;
}
.paste-errors {
  min-height: 1.2em;
  margin: 0;
  color: var(--error);
}
.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ---------- 窄屏：上下布局 ---------- */
@media (max-width: 860px) {
  .workspace {
    grid-template-columns: minmax(0, 1fr);
    padding: 0 8px 8px;
  }
  .langbar {
    padding: 8px;
  }
  .field {
    flex: 1 1 140px;
  }
  .field select {
    width: 100%;
  }
  .arrow {
    display: none;
  }
  #source {
    min-height: 200px;
  }
  .banner {
    margin: 8px 8px 0;
  }
  .btn {
    min-height: 40px;
  }
  #translate {
    flex: 1;
  }
  .source-actions {
    width: 100%;
  }
}

@media (forced-colors: active) {
  .badge,
  .btn-primary {
    border: 1px solid ButtonText;
  }
}