/* Grammar page: reduce container noise and keep the user's notes as the primary task. */

html body[data-view="grammar"] .grammar-section {
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

html body[data-view="grammar"] .grammar-section > .card-pad {
  width: min(100%, 1120px) !important;
  margin: 0 auto !important;
  padding: 32px 48px 64px !important;
}

html body[data-view="grammar"] .grammar-page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 30px;
}

html body[data-view="grammar"] .grammar-page-copy {
  max-width: 690px;
}

html body[data-view="grammar"] .grammar-page-copy .module-kicker {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--color-primary, #6750a4);
  font-size: var(--type-size-caption);
  font-weight: 700;
  letter-spacing: 0.12em;
}

html body[data-view="grammar"] .grammar-page-copy h1 {
  margin: 0;
  color: var(--color-text, #202124);
  font-family: "Noto Serif SC", "Noto Serif JP", serif;
  font-size: clamp(var(--type-size-page-title), 3vw, var(--type-size-hero-wide));
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

html body[data-view="grammar"] .grammar-page-copy p {
  max-width: 620px;
  margin: 12px 0 0;
  color: var(--color-text-soft, #5f6368);
  font-size: var(--type-size-control);
  line-height: 1.75;
}

html body[data-view="grammar"] .grammar-add-trigger {
  flex: 0 0 auto;
  min-width: 112px;
  min-height: 44px;
  margin-top: 4px;
}

html body[data-view="grammar"] .grammar-controls {
  margin-bottom: 34px;
}

html body[data-view="grammar"] .grammar-workbar {
  display: block !important;
  margin: 0 !important;
}

html body[data-view="grammar"] .grammar-search-shell {
  display: flex !important;
  align-items: center;
  width: 100% !important;
  min-height: 50px;
  padding: 0 16px;
  border: 1px solid var(--color-border, #e3e1e8) !important;
  border-radius: 14px !important;
  background: var(--color-surface, #fff) !important;
  box-shadow: 0 1px 2px rgb(32 33 36 / 4%);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

html body[data-view="grammar"] .grammar-search-shell:focus-within {
  border-color: color-mix(in srgb, var(--color-primary, #6750a4) 65%, white) !important;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-primary, #6750a4) 10%, transparent);
}

html body[data-view="grammar"] .grammar-search-shell > span {
  display: grid;
  flex: 0 0 auto;
  width: 21px;
  height: 21px;
  place-items: center;
  color: var(--color-text-soft, #6b6871);
}

html body[data-view="grammar"] .grammar-search-shell svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

html body[data-view="grammar"] .grammar-search {
  width: 100% !important;
  min-height: 48px !important;
  padding: 0 0 0 12px !important;
  border: 0 !important;
  outline: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  color: var(--color-text, #202124);
  font-size: var(--type-size-control);
}

html body[data-view="grammar"] .grammar-search::placeholder {
  color: #8b8791;
}

html body[data-view="grammar"] .grammar-filter-summary {
  display: flex !important;
  align-items: center;
  justify-content: flex-start !important;
  gap: 10px;
  margin: 14px 0 0 !important;
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

html body[data-view="grammar"] .grammar-filter-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

html body[data-view="grammar"] .grammar-filter-options button {
  min-height: 32px;
  padding: 5px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--color-text-soft, #5f6368);
  font-size: var(--type-size-caption);
  font-weight: 600;
  cursor: pointer;
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}

html body[data-view="grammar"] .grammar-filter-options button:hover {
  border-color: var(--color-border, #e3e1e8);
  background: color-mix(in srgb, var(--color-primary-soft, #eaddff) 30%, white);
  color: var(--color-text, #202124);
}

html body[data-view="grammar"] .grammar-filter-options button.is-active {
  border-color: color-mix(in srgb, var(--color-primary, #6750a4) 18%, transparent);
  background: var(--color-primary-soft, #eaddff);
  color: var(--color-primary, #6750a4);
}

html body[data-view="grammar"] .grammar-filter-options button:focus-visible,
html body[data-view="grammar"] .grammar-add-trigger:focus-visible,
html body[data-view="grammar"] .grammar-example-summary:focus-visible,
html body[data-view="grammar"] .grammar-save-summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-primary, #6750a4) 22%, transparent);
  outline-offset: 2px;
}

html body[data-view="grammar"] .grammar-save-panel {
  margin: 0 0 18px !important;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--color-primary, #6750a4) 18%, var(--color-border, #e3e1e8)) !important;
  border-radius: 16px !important;
  background: color-mix(in srgb, var(--color-primary-soft, #eaddff) 18%, white) !important;
  box-shadow: none !important;
}

html body[data-view="grammar"] .grammar-save-panel:not([open]) {
  display: none;
}

html body[data-view="grammar"] .grammar-save-summary {
  display: flex !important;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 20px 14px !important;
  border: 0 !important;
  background: transparent !important;
  cursor: pointer;
  list-style: none;
}

html body[data-view="grammar"] .grammar-save-summary::-webkit-details-marker,
html body[data-view="grammar"] .grammar-example-summary::-webkit-details-marker {
  display: none;
}

html body[data-view="grammar"] .grammar-save-summary span {
  color: var(--color-text, #202124);
  font-size: var(--type-size-body);
  font-weight: 700;
}

html body[data-view="grammar"] .grammar-save-summary small {
  color: var(--color-text-soft, #5f6368);
  font-size: var(--type-size-caption);
  font-weight: 400;
  line-height: 1.6;
  text-align: right;
}

html body[data-view="grammar"] .grammar-save-form {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) 140px;
  gap: 12px;
  padding: 0 20px 20px !important;
}

html body[data-view="grammar"] .grammar-save-form input,
html body[data-view="grammar"] .grammar-save-form select,
html body[data-view="grammar"] .grammar-save-form textarea {
  width: 100%;
  border: 1px solid var(--color-border, #e3e1e8) !important;
  border-radius: 11px !important;
  background: #fff !important;
  box-shadow: none !important;
  color: var(--color-text, #202124);
  font: inherit;
}

html body[data-view="grammar"] .grammar-save-form input,
html body[data-view="grammar"] .grammar-save-form select {
  min-height: 42px;
  padding: 0 12px;
}

html body[data-view="grammar"] .grammar-save-form textarea {
  grid-column: 1 / -1;
  min-height: 104px;
  padding: 12px;
  resize: vertical;
}

html body[data-view="grammar"] .grammar-save-form .btn-primary {
  grid-column: 2;
  justify-self: end;
  min-width: 120px;
}

html body[data-view="grammar"] .grammar-book-panel,
html body[data-view="grammar"] .grammar-book-panel.primary-task-panel {
  margin: 0 !important;
  padding: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

html body[data-view="grammar"] .grammar-panel-head {
  display: flex !important;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin: 0 0 18px !important;
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
}

html body[data-view="grammar"] .grammar-panel-head h2 {
  margin: 0;
  color: var(--color-text, #202124);
  font-size: var(--type-size-section-title);
  font-weight: 700;
  line-height: 1.35;
}

html body[data-view="grammar"] .grammar-panel-head p {
  margin: 5px 0 0;
  color: var(--color-text-soft, #5f6368);
  font-size: var(--type-size-caption);
  line-height: 1.6;
}

html body[data-view="grammar"] .grammar-panel-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

html body[data-view="grammar"] .grammar-book-count {
  flex: 0 0 auto;
  padding-bottom: 2px;
  color: var(--color-text-soft, #5f6368);
  font-size: var(--type-size-caption);
  font-weight: 500;
}

html body[data-view="grammar"] .grammar-book-count b {
  color: var(--color-text, #202124);
  font-size: var(--type-size-body);
  font-weight: 700;
}

html body[data-view="grammar"] .grammar-book-list {
  display: grid !important;
  gap: 12px !important;
  min-height: 148px;
}

html body[data-view="grammar"] .grammar-empty {
  display: grid;
  min-height: 148px;
  padding: 28px;
  place-items: center;
  border: 1px dashed color-mix(in srgb, var(--color-primary, #6750a4) 20%, var(--color-border, #e3e1e8)) !important;
  border-radius: 16px !important;
  background: color-mix(in srgb, var(--color-bg, #f8f6fe) 58%, white) !important;
  color: var(--color-text-soft, #5f6368);
  font-size: var(--type-size-meta);
  line-height: 1.75;
  text-align: center;
}

html body[data-view="grammar"] .grammar-book-card {
  border: 1px solid var(--color-border, #e3e1e8) !important;
  border-radius: 14px !important;
  background: #fff !important;
  box-shadow: 0 1px 2px rgb(32 33 36 / 3%) !important;
}

html body[data-view="grammar"] .grammar-book-card:hover {
  border-color: color-mix(in srgb, var(--color-primary, #6750a4) 25%, var(--color-border, #e3e1e8)) !important;
  box-shadow: 0 8px 24px rgb(52 42 82 / 6%) !important;
}

html body[data-view="grammar"] .grammar-example-panel {
  margin: 44px 0 0 !important;
  padding: 0 !important;
  border: 0 !important;
  border-top: 1px solid var(--color-border, #e3e1e8) !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

html body[data-view="grammar"] .grammar-example-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 82px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
}

html body[data-view="grammar"] .grammar-example-summary > span:first-child {
  display: grid;
  gap: 5px;
}

html body[data-view="grammar"] .grammar-example-summary strong {
  color: var(--color-text, #202124);
  font-size: var(--type-size-body);
  font-weight: 700;
}

html body[data-view="grammar"] .grammar-example-summary small {
  color: var(--color-text-soft, #5f6368);
  font-size: var(--type-size-caption);
  font-weight: 400;
}

html body[data-view="grammar"] .grammar-example-action {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-primary, #6750a4);
  font-size: 0;
  font-weight: 600;
}

html body[data-view="grammar"] .grammar-example-action::before {
  content: "展开";
  font-size: var(--type-size-caption);
}

html body[data-view="grammar"] .grammar-example-action::after {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  content: "";
  transform: rotate(45deg) translateY(-2px);
  transition: transform 160ms ease;
}

html body[data-view="grammar"] .grammar-example-panel[open] .grammar-example-action::before {
  content: "收起";
}

html body[data-view="grammar"] .grammar-example-panel[open] .grammar-example-action::after {
  transform: rotate(225deg) translate(-1px, -1px);
}

html body[data-view="grammar"] .grammar-example-panel .grammar-grid {
  padding: 4px 0 28px !important;
}

html body[data-view="grammar"] .grammar-book-card button[onclick^="removeGrammarNote"] {
  display: inline-grid !important;
  width: 36px !important;
  height: 36px !important;
  min-width: 36px !important;
  min-height: 36px !important;
  padding: 0 !important;
  place-items: center;
  overflow: hidden !important;
  border: 0 !important;
  border-radius: 10px !important;
  background: transparent !important;
  color: #85818c !important;
  font-size: 0 !important;
  line-height: 0 !important;
  cursor: pointer;
  isolation: isolate;
  transition: background 150ms ease, color 150ms ease;
}

html body[data-view="grammar"] .grammar-book-card button[onclick^="removeGrammarNote"] > * {
  display: none !important;
}

html body[data-view="grammar"] .grammar-book-card button[onclick^="removeGrammarNote"]::after {
  display: none !important;
  content: none !important;
}

html body[data-view="grammar"] .grammar-book-card button[onclick^="removeGrammarNote"]::before {
  display: block;
  width: 18px;
  height: 18px;
  background: currentColor;
  content: "";
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 3h6l1 2h4v2H4V5h4l1-2Zm-2 6h10l-1 11H8L7 9Zm3 2v7h2v-7h-2Zm4 0v7h2v-7h-2Z'/%3E%3C/svg%3E") center / 18px 18px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 3h6l1 2h4v2H4V5h4l1-2Zm-2 6h10l-1 11H8L7 9Zm3 2v7h2v-7h-2Zm4 0v7h2v-7h-2Z'/%3E%3C/svg%3E") center / 18px 18px no-repeat;
}

html body[data-view="grammar"] .grammar-book-card button[onclick^="removeGrammarNote"]:hover {
  background: #f5eeee !important;
  color: #c43d3d !important;
}

html body[data-view="grammar"] .grammar-book-card button[onclick^="removeGrammarNote"]:focus-visible {
  outline: 3px solid color-mix(in srgb, #c43d3d 18%, transparent);
  outline-offset: 2px;
}

@media (max-width: 820px) {
  html body[data-view="grammar"] .grammar-section > .card-pad {
    padding: 30px 24px 48px !important;
  }

  html body[data-view="grammar"] .grammar-page-head {
    align-items: stretch;
    flex-direction: column;
    gap: 20px;
  }

  html body[data-view="grammar"] .grammar-add-trigger {
    align-self: flex-start;
    margin-top: 0;
  }

  html body[data-view="grammar"] .grammar-save-form {
    grid-template-columns: 1fr;
  }

  html body[data-view="grammar"] .grammar-save-form textarea,
  html body[data-view="grammar"] .grammar-save-form .btn-primary {
    grid-column: 1;
  }

  html body[data-view="grammar"] .grammar-save-form .btn-primary {
    justify-self: stretch;
  }
}

@media (max-width: 560px) {
  html body[data-view="grammar"] .grammar-section > .card-pad {
    padding: 24px 16px 40px !important;
  }

  html body[data-view="grammar"] .grammar-page-copy h1 {
    font-size: var(--type-size-page-title);
  }

  html body[data-view="grammar"] .grammar-panel-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  html body[data-view="grammar"] .grammar-panel-actions {
    width: 100%;
    justify-content: space-between;
  }

  html body[data-view="grammar"] .grammar-save-summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  html body[data-view="grammar"] .grammar-save-summary small {
    text-align: left;
  }

  html body[data-view="grammar"] .grammar-filter-options {
    flex-wrap: nowrap;
    width: calc(100vw - 32px);
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  html body[data-view="grammar"] .grammar-filter-options::-webkit-scrollbar {
    display: none;
  }

  html body[data-view="grammar"] .grammar-filter-options button {
    flex: 0 0 auto;
  }
}