:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #667085;
  --line: #d9dee7;
  --panel: #ffffff;
  --wash: #f5f7fb;
  --teal: #0f766e;
  --blue: #1d4ed8;
  --green: #15803d;
  --amber: #b45309;
  --red: #dc2626;
  --red-bg: #fee2e2;
  --amber-bg: #fef3c7;
  --green-bg: #dcfce7;
  --blue-bg: #eaf1ff;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--wash);
  color: var(--ink);
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
.import-btn {
  border: 1px solid var(--teal);
  background: var(--teal);
  color: #fff;
  border-radius: 6px;
  padding: 9px 13px;
  cursor: pointer;
  white-space: nowrap;
}

button.secondary {
  background: #fff;
  color: var(--teal);
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px clamp(16px, 4vw, 40px);
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 5;
}

.eyebrow {
  margin: 0 0 3px;
  color: var(--teal);
  font-weight: 700;
  font-size: 13px;
}

h1 {
  margin: 0;
  font-size: clamp(22px, 4vw, 32px);
  letter-spacing: 0;
}

h2 {
  font-size: 18px;
  margin: 0 0 12px;
}

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.sync-status {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  max-width: 180px;
}

.import-btn input {
  display: none;
}

main {
  padding: 18px clamp(12px, 3vw, 32px) 40px;
  max-width: 1440px;
  margin: 0 auto;
}

.today-panel {
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: 14px;
  align-items: stretch;
}

.date-card,
.feedback-panel,
.task-board article,
fieldset,
.entry-card,
.plan-row {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.date-card {
  padding: 16px;
}

.date-card label,
fieldset label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 10px;
  background: #fff;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.score-box {
  margin-top: 16px;
  padding: 16px;
  border-radius: 8px;
  background: var(--blue-bg);
}

.score-box span,
.task-board span,
.feedback-panel span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 6px;
}

.score-box strong {
  font-size: 44px;
  display: block;
  line-height: 1;
}

.score-box em {
  display: block;
  margin-top: 6px;
  font-style: normal;
  color: var(--blue);
  font-weight: 700;
}

.task-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.task-board article {
  padding: 13px;
  min-height: 142px;
}

.task-board p,
.feedback-panel p {
  margin: 0;
  line-height: 1.55;
}

.feedback-panel {
  display: grid;
  grid-template-columns: 1fr 1.2fr 2fr;
  gap: 12px;
  padding: 14px;
  margin: 14px 0;
}

.feedback-panel strong {
  display: block;
  line-height: 1.45;
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 0 12px;
}

.tabs button {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.tabs button.active {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}

.tab-page {
  display: none;
}

.tab-page.active {
  display: block;
}

.form-grid {
  display: grid;
  gap: 14px;
}

fieldset {
  border: 1px solid var(--line);
  padding: 14px;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

fieldset legend {
  padding: 0 8px;
  color: var(--teal);
  font-weight: 800;
}

.wide {
  grid-column: span 2;
}

.compact fieldset {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.table-tools {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.split.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 18px;
}

.pool-stack {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.pool-section {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.pool-section > h2,
.pool-section > h3 {
  margin-top: 0;
}

.search-panel {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 16px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.search-panel.english-search {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.search-panel label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.entry-list,
.plan-list {
  display: grid;
  gap: 10px;
}

.stats-panel {
  display: grid;
  gap: 8px;
  margin: 8px 0 12px;
}

.stats-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: #f8fafc;
}

.stats-block h4 {
  margin: 0 0 8px;
  font-size: 14px;
}

.stats-row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) 72px;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  padding: 4px 0;
  border-top: 1px solid var(--line);
}

.stats-row:first-of-type {
  border-top: 0;
}

.stats-code {
  font-weight: 900;
  color: var(--teal);
}

.stats-bar {
  height: 8px;
  border-radius: 999px;
  background: var(--blue-bg);
  overflow: hidden;
}

.stats-bar span {
  display: block;
  height: 100%;
  background: var(--teal);
}

.entry-card,
.plan-row {
  padding: 12px;
  display: grid;
  gap: 8px;
}

.entry-card header,
.plan-row header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.entry-title {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.entry-title input {
  width: auto;
  margin-top: 3px;
}

.thumb {
  max-width: 220px;
  max-height: 140px;
  border: 1px solid var(--line);
  border-radius: 6px;
  object-fit: contain;
  background: #fff;
}

.entry-card strong,
.plan-row strong {
  font-size: 15px;
}

.entry-card dl,
.plan-row dl {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 12px;
}

.entry-card div,
.plan-row div {
  min-width: 0;
}

.entry-card dt,
.plan-row dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.entry-card dd,
.plan-row dd {
  margin: 2px 0 0;
  word-break: break-word;
}

.danger {
  color: var(--red);
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--blue-bg);
  color: var(--blue);
  font-weight: 800;
  font-size: 12px;
}

.pill.good {
  background: var(--green-bg);
  color: var(--green);
}

.pill.warn {
  background: var(--amber-bg);
  color: var(--amber);
}

.pill.bad {
  background: var(--red-bg);
  color: var(--red);
}

dialog {
  border: 1px solid var(--line);
  border-radius: 8px;
  width: min(720px, calc(100vw - 24px));
  padding: 0;
}

dialog::backdrop {
  background: rgb(15 23 42 / 0.35);
}

#entryForm {
  padding: 18px;
}

#syncForm {
  padding: 18px;
}

.sync-help {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.dialog-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.dialog-fields label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

menu {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 0;
  margin: 18px 0 0;
}

#cancelDialog {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

@media (max-width: 980px) {
  .today-panel,
  .feedback-panel,
  .split,
  .split.three,
  .search-panel {
    grid-template-columns: 1fr;
  }

  .task-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  fieldset {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .app-header {
    align-items: flex-start;
    position: static;
  }

  .header-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .task-board,
  fieldset,
  .compact fieldset,
  .dialog-fields {
    grid-template-columns: 1fr;
  }

  .wide {
    grid-column: span 1;
  }

  .entry-card dl,
  .plan-row dl {
    grid-template-columns: 1fr;
  }
}