/* =========================================================================
   编辑台 · 样式
   和前台同一套：白纸、楷体正文、明朝标题、黑体小字。界面里只保留控件本身
   需要的边框（按钮、输入框），装饰性的线一律不要。
   ========================================================================= */

:root {
  color-scheme: light;
  --soft: #f4f3f1;
}

[hidden] {
  display: none !important;
}

body.page-admin {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--gothic);
}

/* ---------------------------------------------------------------- 部件 */

.btn {
  font: inherit;
  font-family: var(--gothic);
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  padding: 0.5rem 0.9rem;
  border: 1px solid #d8d6d2;
  background: transparent;
  color: var(--body);
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.btn--primary {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.btn--primary:hover {
  background: var(--shu);
  border-color: var(--shu);
  color: #fff;
}

.btn--danger:hover {
  border-color: var(--shu);
  color: var(--shu);
}

.btn[disabled] {
  opacity: 0.4;
  cursor: default;
}

.field {
  font: inherit;
  font-family: var(--gothic);
  width: 100%;
  padding: 0.5rem 0;
  border: 0;
  border-bottom: 1px solid #d8d6d2;
  background: transparent;
  color: var(--ink);
}

.field:focus {
  outline: none;
  border-bottom-color: var(--shu);
}

.field::placeholder {
  color: var(--faint);
}

/* -------------------------------------------------------------- 登录 */

.gate {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--paper);
  padding: var(--gutter);
  z-index: 40;
}

.gate__card {
  width: min(22rem, 100%);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 2rem 1.75rem;
}

.gate__title {
  margin: 0 0 0.75rem;
  font-family: var(--mincho);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ink);
}

.gate__label {
  font-family: var(--gothic);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.gate__error,
.dialog__error {
  margin: 0;
  min-height: 1.2em;
  font-family: var(--gothic);
  font-size: 0.76rem;
  color: var(--shu);
}

.gate__card .btn--primary {
  margin-top: 0.6rem;
  padding: 0.65rem;
}

.gate__hint {
  margin: 0.25rem 0 0;
  font-family: var(--gothic);
  font-size: 0.7rem;
  line-height: 1.9;
  color: var(--faint);
}

.gate__hint code {
  font-family: var(--mono);
}

/* -------------------------------------------------------------- 顶栏 */

.admin {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.adminbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem var(--gutter);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
  flex-wrap: wrap;
}

.adminbar__brand {
  font-family: var(--mincho);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--ink);
}

.adminbar__tools {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.adminbar__status {
  font-family: var(--gothic);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--shu);
}

/* ------------------------------------------------------------ 工作区 */

.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: 14rem 1fr;
  min-height: 0;
}

.sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding-right: 1.5rem;
}

.sidebar__head {
  display: flex;
  justify-content: space-between;
  padding: 0 0 0.7rem;
  font-family: var(--gothic);
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.sidebar__head > span:first-child::before {
  content: "●";
  margin-right: 0.5em;
  font-size: 0.7em;
  color: var(--shu);
}

.postlist {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  flex: 1;
}

.postlist__link {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  padding: 0.55rem 0.7rem;
  border: 0;
  background: transparent;
  color: var(--body);
  cursor: pointer;
}

.postlist__link:hover {
  background: var(--soft);
}

.postlist__item.is-active .postlist__link {
  background: var(--soft);
}

.postlist__item.is-active .postlist__title {
  color: var(--shu);
}

.postlist__title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-family: var(--kai);
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--ink);
}

.postlist__meta {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
  margin-top: 0.15rem;
  font-family: var(--gothic);
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.postlist__no {
  color: var(--shu);
}

.postlist__empty {
  padding: 0.5rem 0;
  font-family: var(--gothic);
  font-size: 0.76rem;
  color: var(--faint);
}

.badge {
  font-family: var(--gothic);
  color: var(--shu);
}

/* ------------------------------------------------------------ 编辑器 */

.editor {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.editor__scroll {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem clamp(1rem, 3vw, 2rem) 3rem;
}

.editor__form {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  max-width: 56rem;
  margin: 0 auto;
  min-height: 100%;
}

.field--title {
  font-family: var(--mincho);
  font-size: 2.2rem;
  font-weight: 600;
  line-height: 1.45;
  border-bottom: 0;
  color: var(--ink);
}

.editor__meta {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.field--author {
  max-width: 13rem;
  font-size: 0.86rem;
}

.editor__stamp {
  margin-left: auto;
  font-family: var(--gothic);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------------------- 工具条 */

.toolbar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0;
  flex-wrap: wrap;
}

.toolbar__group {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.toolbar__group--right {
  margin-left: auto;
}

.tool {
  font: inherit;
  font-family: var(--gothic);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  min-width: 2rem;
  height: 1.85rem;
  padding: 0 0.5rem;
  border: 0;
  background: transparent;
  color: var(--body);
  cursor: pointer;
}

.tool:hover {
  background: var(--soft);
  color: var(--ink);
}

.panes[data-view="edit"] [data-view="edit"],
.panes[data-view="split"] [data-view="split"],
.panes[data-view="preview"] [data-view="preview"] {
  background: var(--ink);
  color: #fff;
}

/* --------------------------------------------------------- 编辑 / 预览 */

.panes {
  flex: 1;
  min-height: 55vh;
  display: grid;
}

.panes[data-view="split"] {
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.panes[data-view="preview"] .body-input,
.panes[data-view="edit"] .preview {
  display: none;
}

.body-input {
  font-family: var(--kai);
  font-size: var(--body-size);
  line-height: 1.95;
  color: var(--body);
  width: 100%;
  height: 100%;
  min-height: 40vh;
  padding: 0.5rem 0;
  border: 0;
  background: transparent;
  resize: none;
  overflow-y: auto;
}

.body-input:focus {
  outline: none;
}

.preview {
  padding: 0.5rem 0;
  overflow-y: auto;
}

@media (max-width: 900px) {
  .panes[data-view="split"] {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .panes[data-view="split"] .body-input {
    min-height: 30vh;
  }
}

/* -------------------------------------------------------------- 底栏 */

.editorbar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding-top: 0.9rem;
  flex-wrap: wrap;
}

.editorbar__stat {
  font-family: var(--gothic);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
}

.editorbar__spacer {
  flex: 1;
}

.editor__saved {
  margin: 0;
  min-height: 1.1rem;
  font-family: var(--gothic);
  font-size: 0.7rem;
  color: var(--shu);
  text-align: right;
}

/* ------------------------------------------------------------ 欢迎页 */

.welcome {
  display: grid;
  place-items: center;
  padding: var(--gutter);
}

.welcome__inner {
  max-width: 22rem;
}

.welcome__title {
  margin: 0 0 0.5rem;
  font-family: var(--mincho);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--ink);
}

.welcome__text {
  margin: 0 0 1.25rem;
  font-family: var(--gothic);
  font-size: 0.8rem;
  line-height: 2;
  color: var(--muted);
}

/* ------------------------------------------------------------ 对话框 */

.dialog {
  border: 1px solid #d8d6d2;
  background: var(--paper);
  color: var(--body);
  padding: 0;
  width: min(28rem, calc(100vw - 2rem));
}

.dialog::backdrop {
  background: rgba(0, 0, 0, 0.35);
}

.dialog__form {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dialog__title {
  margin: 0 0 0.3rem;
  font-family: var(--mincho);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.dialog__title--sub {
  font-size: 0.98rem;
  margin-top: 0.3rem;
}

.dialog__hint {
  margin: 0 0 0.4rem;
  font-family: var(--gothic);
  font-size: 0.76rem;
  line-height: 1.9;
  color: var(--muted);
}

.dialog__label {
  font-family: var(--gothic);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-top: 0.3rem;
}

.dialog__rule {
  display: none;
}

.dialog__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.2rem;
}

.dialog__thumb {
  display: block;
  width: 100%;
  max-width: 15rem;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--soft);
  margin: 0.2rem 0 0.3rem;
}

.linkbtn {
  font: inherit;
  font-family: var(--gothic);
  padding: 0;
  border: 0;
  background: none;
  color: var(--shu);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

/* -------------------------------------------------------- 提示 / 拖放 */

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.75rem;
  transform: translateX(-50%);
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: #fff;
  font-family: var(--gothic);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  z-index: 60;
  max-width: min(28rem, calc(100vw - 2rem));
}

.toast--error {
  background: var(--shu);
}

.dropzone {
  position: fixed;
  inset: 0.5rem;
  border: 2px dashed var(--shu);
  background: var(--paper);
  display: grid;
  place-items: center;
  z-index: 70;
  font-family: var(--mincho);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--shu);
  pointer-events: none;
}

/* ------------------------------------------------------------- 窄屏 */

@media (max-width: 860px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .sidebar {
    padding: 0 0 1.25rem;
    max-height: 11rem;
  }

  .postlist {
    max-height: 9rem;
  }
}