/* ========================================================================== */
/* 顶部品牌栏                                                                  */
/* ========================================================================== */

.topbar {
  display: none;
  flex: 0 0 auto;
  min-height: 72px;
  padding: 14px 32px;
  align-items: center;
  justify-content: space-between;
  background: transparent;
}

/* 跟随文件选择区的可见状态，阅读时不占用表格空间。 */
.app-shell:has(#source-panel:not([hidden])) > .topbar {
  display: flex;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: block;
  flex: 0 0 auto;
  border-radius: 11px;
  background: url("../../favicon.svg") center / contain no-repeat;
  box-shadow: 0 5px 14px rgba(21, 122, 98, 0.16);
}

.brand-mark span {
  display: none;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: 0.04em;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.privacy-note {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.privacy-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3eb38d;
  box-shadow: 0 0 0 4px rgba(62, 179, 141, 0.12);
}

/* ========================================================================== */
/* 文件来源面板                                                                */
/* ========================================================================== */

.workspace {
  width: 100%;
  min-height: 0;
  margin: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.source-panel,
.viewer-card {
  border: 0;
  background: var(--paper);
  box-shadow: none;
}

/*
 * 文件来源从大卡片压缩为一条应用工具栏。
 * 它只占固定高度，把绝大部分视口留给下方表格。
 */
.source-panel {
  min-height: 50px;
  padding: 5px 12px;
  flex: 0 0 50px;
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  opacity: 1;
  transition: min-height 160ms ease, flex-basis 160ms ease, padding 160ms ease, opacity 120ms ease;
}

.panel-heading {
  display: block;
  margin: 0;
}

.eyebrow {
  display: none;
  color: var(--brand);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.panel-heading h1 {
  margin: 0;
  font-family: inherit;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0;
  white-space: nowrap;
}

.panel-heading p:not(.eyebrow) {
  display: none;
}

.format-badge {
  display: none;
}

.source-grid {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(225px, 0.48fr) minmax(500px, 1.52fr);
  gap: 8px;
}

.drop-zone {
  min-height: 38px;
  height: 38px;
  padding: 5px 7px 5px 10px;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 1px dashed #9ec4b6;
  border-radius: 9px;
  background: linear-gradient(135deg, #f4fbf8, #fbfdfc);
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease;
}

.drop-zone:hover,
.drop-zone.is-dragging {
  border-color: var(--brand);
  background: #edf9f5;
}

.drop-zone input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.upload-icon {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 0;
  border-radius: 50%;
  color: var(--brand);
  background: transparent;
  font-size: 18px;
  line-height: 1;
}

.drop-copy {
  min-width: 0;
  flex: 1;
}

.drop-copy strong,
.drop-copy small {
  display: block;
}

.drop-copy strong {
  font-size: 12px;
}

.drop-copy small {
  display: none;
}

.remote-source {
  min-width: 0;
  min-height: 38px;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(210px, 0.7fr) minmax(300px, 1.3fr);
  align-items: center;
  gap: 8px;
  border: 0;
  border-radius: 0;
}

.remote-source > label,
.remote-source > .field-label {
  display: none;
}

.input-row {
  display: flex;
  gap: 8px;
}

.input-row input,
.input-row select {
  min-width: 0;
  height: 38px;
  flex: 1;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  outline: none;
  color: var(--ink);
  background: #fff;
}

/* 自定义预置文件下拉：弹层完全由站点绘制，不再调用系统原生 select 菜单。 */
.preset-select {
  min-width: 0;
  flex: 1;
  position: relative;
}

.preset-trigger {
  width: 100%;
  height: 38px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  outline: none;
  color: var(--ink);
  background: #fff;
  cursor: pointer;
  text-align: left;
}

.preset-trigger:hover:not(:disabled) {
  border-color: #9ebdb2;
  background: #fbfdfc;
}

.preset-trigger:focus-visible,
.preset-select.is-open .preset-trigger {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(21, 122, 98, 0.1);
}

.preset-trigger:disabled {
  cursor: not-allowed;
  color: #93a19d;
  background: #f6f8f7;
}

.preset-value {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preset-chevron {
  width: 8px;
  height: 8px;
  margin: -4px 3px 0 0;
  flex: 0 0 auto;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 150ms ease, margin 150ms ease;
}

.preset-select.is-open .preset-chevron {
  margin-top: 4px;
  transform: rotate(225deg);
}

.preset-options {
  /*
   * 列表在 main.js 中移动到 body 顶层，并由脚本写入 left/top/bottom/width。
   * 使用 fixed 可避免菜单扩大 source-panel 的滚动区域，也不会被卡片裁切。
   */
  max-height: 220px;
  padding: 5px;
  position: fixed;
  z-index: 1200;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid #c8d9d3;
  border-radius: 11px;
  /* 完全不透明，避免菜单下方的 URL 标签和输入框文字透出来。 */
  background: #fff;
  box-shadow: 0 14px 36px rgba(27, 61, 52, 0.18);
  scrollbar-width: thin;
  scrollbar-color: #b4c9c1 transparent;
}

.preset-option {
  width: 100%;
  min-height: 38px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 9px;
  overflow: hidden;
  border: 0;
  border-radius: 8px;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.preset-option::before {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border: 1px solid #a9c8bc;
  border-radius: 50%;
  content: "";
}

.preset-option span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.preset-option:hover,
.preset-option:focus-visible {
  outline: none;
  color: var(--brand-dark);
  background: #eef8f4;
}

.preset-option[aria-selected="true"] {
  color: var(--brand-dark);
  background: var(--brand-soft);
  font-weight: 750;
}

.preset-option[aria-selected="true"]::before {
  border-color: var(--brand);
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(21, 122, 98, 0.12);
}

.input-row input {
  padding: 0 12px;
}

.input-row select {
  padding: 0 34px 0 11px;
}

.input-row input:focus,
.input-row select:focus,
.search-box:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(21, 122, 98, 0.1);
}

.divider {
  display: none;
}

.divider::before,
.divider::after {
  height: 1px;
  flex: 1;
  content: "";
  background: var(--line);
}

.button {
  min-height: 36px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease, transform 150ms ease;
}

.button:active {
  transform: translateY(1px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.button-primary {
  color: #fff;
  background: var(--brand);
}

.button-primary:hover {
  background: var(--brand-dark);
}

.button-secondary {
  min-width: 64px;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  background: #f7faf9;
}

.button-secondary:hover {
  border-color: #a8beb7;
  background: #eef4f2;
}

.shortcut-help-trigger,
.shortcut-help-heading button {
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--brand-dark);
  background: transparent;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.shortcut-help-trigger:hover,
.shortcut-help-heading button:hover {
  background: var(--brand-soft);
}

.shortcut-help-trigger {
  padding: 4px 0;
  border: 0;
  border-radius: 0;
  color: var(--muted);
  background: transparent;
}

.shortcut-help-trigger:hover {
  color: var(--brand-dark);
  background: transparent;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.shortcut-help-trigger:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 4px;
}

.shortcut-help {
  width: min(460px, calc(100vw - 32px));
  max-height: calc(100dvh - 40px);
  padding: 24px;
  overflow: auto;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  color: var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.shortcut-help::backdrop {
  background: rgba(24, 50, 44, 0.25);
}

.shortcut-help-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.shortcut-help h2 {
  margin: 0;
  font-size: 18px;
}

.shortcut-help p {
  margin: 22px 0 8px;
  color: var(--muted);
  font-size: 12px;
}

.shortcut-help dl {
  margin: 0;
}

.shortcut-help dl > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
}

.shortcut-help dd {
  margin: 0;
  flex-shrink: 0;
}

.shortcut-help kbd {
  padding: 3px 6px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: #f5f8f6;
  font-family: inherit;
  font-size: 11px;
}

.shortcut-help small {
  display: block;
  margin-top: 18px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}