:root {
  --blue: #356e57;
  --blue-dark: #194f45;
  --purple: #6f9e72;
  --ink: #193d38;
  --muted: #5d7168;
  --line: #e5ddc9;
  --soft: #fff9e9;
  --soft-blue: #edf5df;
  --success: #356e57;
  --danger: #c9503f;
  --white: #fffdf7;
  --shadow: 0 18px 46px rgba(24, 66, 55, .12);
}

* { box-sizing: border-box; }

html {
  min-width: 320px;
  min-height: 100%;
  background: var(--soft);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 12%, rgba(248, 198, 63, .22), transparent 25%),
    radial-gradient(circle at 94% 76%, rgba(111, 158, 114, .19), transparent 28%),
    var(--soft);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Segoe UI", sans-serif;
}

button,
input { font: inherit; }

button { cursor: pointer; }

button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(63, 102, 232, .28);
  outline-offset: 2px;
}

.hero {
  min-height: 174px;
  position: relative;
  overflow: hidden;
  color: var(--white);
  background: linear-gradient(120deg, var(--blue-dark) 0%, var(--blue) 48%, var(--purple) 100%);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  transform: rotate(-18deg);
}

.hero::before {
  width: 420px;
  height: 120px;
  right: 4%;
  top: -24px;
}

.hero::after {
  width: 310px;
  height: 92px;
  right: 17%;
  bottom: -55px;
}

.hero-inner {
  width: min(1480px, calc(100% - 64px));
  min-height: 174px;
  margin: 0 auto;
  padding: 48px 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.back-link {
  padding: 8px 12px;
  position: absolute;
  top: 12px;
  left: 0;
  border: 1px solid rgba(255, 255, 255, .38);
  border-radius: 9px;
  background: rgba(255, 255, 255, .13);
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  transition: background .18s ease, transform .18s ease;
}

.back-link:hover {
  background: rgba(255, 255, 255, .24);
  transform: translateY(-1px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 17px;
}

.brand-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 18px;
  background: rgba(255, 255, 255, .18);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .22);
  font-size: 32px;
}

h1 {
  margin: 0 0 6px;
  font-size: clamp(29px, 2.5vw, 37px);
  line-height: 1.15;
  letter-spacing: .03em;
}

.tagline {
  margin: 0;
  color: rgba(255, 255, 255, .84);
  font-size: 17px;
  letter-spacing: .02em;
}

.steps {
  display: flex;
  align-items: center;
  gap: 9px;
}

.step {
  min-width: 132px;
  padding: 11px 14px;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 1px solid rgba(255, 255, 255, .23);
  border-radius: 15px;
  background: rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .84);
  backdrop-filter: blur(8px);
  font-size: 14px;
}

.step.active {
  color: var(--blue-dark);
  border-color: var(--white);
  background: var(--white);
  box-shadow: 0 10px 26px rgba(30, 40, 98, .19);
}

.step-number {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: rgba(255, 255, 255, .18);
  color: var(--white);
  font-size: 13px;
  font-weight: 800;
}

.step.active .step-number {
  background: linear-gradient(135deg, var(--blue), var(--purple));
}

.workspace {
  width: min(1480px, calc(100% - 64px));
  margin: -23px auto 0;
  padding-bottom: 28px;
  position: relative;
  z-index: 2;
}

.columns {
  display: grid;
  grid-template-columns: 510px minmax(0, 1fr);
  gap: 22px;
  align-items: stretch;
}

.card {
  min-width: 0;
  border: 1px solid rgba(204, 214, 238, .84);
  border-radius: 22px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.input-card { padding: 25px 25px 20px; }

.preview-card {
  min-height: 672px;
  padding: 21px 23px 20px;
  display: flex;
  flex-direction: column;
}

.card-heading {
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.preview-card .card-heading {
  align-items: center;
  margin-bottom: 13px;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
}

h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.25;
}

.helper {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.count,
.ready-pill {
  flex: 0 0 auto;
  padding: 7px 11px;
  border-radius: 999px;
  background: #e9f8f1;
  color: var(--success);
  font-size: 12px;
  font-weight: 800;
}

.count.warning {
  color: var(--danger);
  background: #fff0f2;
}

.preview-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.step-chip {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 10px;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--purple));
  font-size: 13px;
  font-weight: 800;
}

.word-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.word-item {
  min-width: 0;
  padding: 11px 9px 9px;
  position: relative;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #fbfcff;
  text-align: center;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.word-item:focus-within {
  border-color: #8ba2fa;
  box-shadow: 0 0 0 3px rgba(63, 102, 232, .11);
  transform: translateY(-1px);
}

.item-number {
  width: 21px;
  height: 21px;
  display: grid;
  place-items: center;
  position: absolute;
  left: 8px;
  top: 8px;
  border-radius: 7px;
  background: #eef1f8;
  color: #78829c;
  font-size: 10px;
  font-weight: 800;
}

.picture-box {
  width: 53px;
  height: 53px;
  margin: 0 auto 8px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 13px;
  background: linear-gradient(145deg, #eef3ff, #f5efff);
  font-size: 27px;
  transition: transform .18s ease, box-shadow .18s ease;
}

.picture-box:hover {
  transform: translateY(-2px) rotate(-2deg);
  box-shadow: 0 7px 14px rgba(63, 102, 232, .14);
}

.word-input {
  width: 100%;
  height: 33px;
  padding: 5px 7px;
  border: 1px solid #dce2f0;
  border-radius: 9px;
  outline: none;
  background: var(--white);
  color: var(--ink);
  text-align: center;
  font-size: 13px;
  font-weight: 700;
}

.word-input:focus { border-color: var(--blue); }

.emoji-help {
  margin: 12px 2px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.emoji-help a {
  color: var(--blue-dark);
  font-weight: 800;
  text-decoration-color: rgba(53, 110, 87, .45);
  text-underline-offset: 2px;
}

.emoji-help a:hover { color: var(--coral); }

.auto-match {
  margin-top: 15px;
  padding: 11px 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-radius: 13px;
  background: var(--soft-blue);
  color: #52607d;
  font-size: 12px;
}

.match-status {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--success);
  font-weight: 800;
}

.check {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--success);
  color: var(--white);
  font-size: 11px;
}

.link-button {
  padding: 4px 6px;
  border: 0;
  background: transparent;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 800;
}

.icon-picker {
  margin-top: 14px;
  padding: 14px;
  border: 1px solid #cfd9f5;
  border-radius: 14px;
  background: #fafbff;
  box-shadow: 0 12px 28px rgba(52, 68, 124, .11);
}

.icon-picker[hidden] { display: none; }

.picker-heading {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.picker-heading strong { font-size: 13px; }

.picker-close {
  width: 29px;
  height: 29px;
  border: 0;
  border-radius: 9px;
  background: #edf1fb;
  color: #53607c;
  font-size: 17px;
}

.emoji-search {
  display: grid;
  gap: 5px;
  margin-bottom: 6px;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 800;
}

.emoji-search input {
  width: 100%;
  height: 35px;
  padding: 6px 10px;
  border: 1px solid #dce2f0;
  border-radius: 9px;
  background: var(--white);
  color: var(--ink);
}

.emoji-search input:focus { border-color: var(--sun-deep); }

.emoji-search-status {
  min-height: 18px;
  margin: 0 0 9px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

.picker-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 6px;
}

.picker-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 12px;
  border: 1px dashed #d8e5c7;
  border-radius: 9px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  text-align: center;
}

.picker-option {
  height: 34px;
  padding: 0;
  border: 1px solid #e0e5f2;
  border-radius: 8px;
  background: var(--white);
  font-size: 20px;
}

.picker-option:hover,
.picker-option.selected {
  border-color: #8ba2fa;
  background: var(--soft-blue);
}

img.twemoji {
  width: 1em;
  height: 1em;
  margin: 0 .04em;
  vertical-align: -.12em;
}

.picture-box img.twemoji,
.picker-option img.twemoji {
  width: 1.08em;
  height: 1.08em;
  margin: 0;
}

.custom-icon {
  margin-top: 10px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.custom-icon input {
  min-width: 0;
  height: 34px;
  padding: 5px 9px;
  border: 1px solid #dce2f0;
  border-radius: 9px;
  background: var(--white);
}

.mini-button {
  height: 34px;
  padding: 0 11px;
  border: 0;
  border-radius: 9px;
  background: var(--blue);
  color: var(--white);
  font-size: 12px;
  font-weight: 800;
}

.worksheet-shell {
  min-height: 0;
  flex: 1;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: minmax(470px, 585px) minmax(160px, 1fr);
  align-items: center;
  gap: 20px;
  overflow: hidden;
  border: 1px solid #e2e6ef;
  border-radius: 16px;
  background: #fafbfe;
}

.paper {
  min-width: 0;
  align-self: stretch;
  padding: 14px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-radius: 5px;
  background: var(--white);
  box-shadow: 0 7px 22px rgba(47, 55, 84, .1);
}

.paper-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  color: #222b3a;
}

.paper-head strong { font-size: 16px; }

.paper-head span {
  color: #788091;
  font-size: 10px;
  white-space: nowrap;
}

.instructions {
  margin: 4px 0 7px;
  color: #606a80;
  font-size: 10px;
  line-height: 1.4;
}

.sudoku {
  width: min(100%, 548px);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-template-rows: repeat(9, 1fr);
  border: 3px solid #29334c;
  background: var(--white);
}

.cell {
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-right: 1px solid #aeb7cb;
  border-bottom: 1px solid #aeb7cb;
  color: #24304a;
  font-size: clamp(10px, 1vw, 14px);
  font-weight: 700;
  white-space: nowrap;
}

.cell.block-right { border-right: 3px solid #29334c; }
.cell.last-column { border-right: 0; }
.cell.block-bottom { border-bottom: 3px solid #29334c; }
.cell.last-row { border-bottom: 0; }

.cell.picture {
  background: #f8f9ff;
  font-family: "Segoe UI Emoji", "Apple Color Emoji", sans-serif;
  font-size: clamp(17px, 2vw, 25px);
}

.cell.answer {
  background: #f0edff;
  color: #5743be;
}

.screen-legend {
  min-width: 0;
  align-self: stretch;
  padding: 9px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.screen-legend h3 {
  margin: 0 0 5px;
  font-size: 16px;
}

.legend-note {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.5;
}

.legend-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.legend-item {
  min-width: 0;
  padding: 7px 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid #e0e5f1;
  border-radius: 10px;
  background: var(--white);
  color: #3d4965;
  font-size: 11px;
  font-weight: 700;
}

.legend-emoji {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 8px;
  background: var(--soft-blue);
  font-family: "Segoe UI Emoji", "Apple Color Emoji", sans-serif;
  font-size: 17px;
}

.legend-word {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.print-legend { display: none; }

.toolbar {
  min-height: 80px;
  margin-top: 17px;
  padding: 13px 17px 13px 21px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.difficulty,
.actions {
  display: flex;
  align-items: center;
  gap: 9px;
}

.toolbar-label {
  margin-right: 3px;
  color: #4b5672;
  font-size: 13px;
  font-weight: 800;
}

.segment {
  padding: 4px;
  display: flex;
  border-radius: 12px;
  background: #eef1f8;
}

.segment button {
  min-width: 66px;
  padding: 8px 13px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: #69728b;
  font-size: 12px;
  font-weight: 800;
}

.segment button.active {
  background: linear-gradient(135deg, var(--blue), var(--purple));
  box-shadow: 0 4px 11px rgba(63, 102, 232, .25);
  color: var(--white);
}

.clue-text {
  margin-left: 5px;
  color: #8189a0;
  font-size: 11px;
}

.btn {
  height: 44px;
  padding: 0 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 800;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.btn:hover:not(:disabled) { transform: translateY(-1px); }

.btn:disabled {
  cursor: not-allowed;
  opacity: .5;
}

.btn-secondary {
  border: 1px solid #cbd6f5;
  background: var(--white);
  color: var(--blue-dark);
}

.btn-secondary:hover:not(:disabled) {
  border-color: #8ba2fa;
  box-shadow: 0 7px 18px rgba(63, 102, 232, .1);
}

.btn-primary {
  min-width: 158px;
  border: 0;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  box-shadow: 0 9px 20px rgba(82, 78, 209, .25);
  color: var(--white);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 11px 24px rgba(82, 78, 209, .32);
}

.toast {
  max-width: calc(100% - 32px);
  padding: 11px 15px;
  position: fixed;
  left: 50%;
  bottom: 22px;
  z-index: 10;
  transform: translate(-50%, 20px);
  border-radius: 999px;
  background: #202a44;
  box-shadow: 0 12px 30px rgba(26, 34, 58, .24);
  color: var(--white);
  font-size: 13px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}

.toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
}

@media (max-width: 1240px) {
  .hero-inner,
  .workspace { width: calc(100% - 40px); }
  .steps { display: none; }
  .columns { grid-template-columns: 455px minmax(0, 1fr); }
  .worksheet-shell {
    grid-template-columns: minmax(425px, 1fr) 145px;
    gap: 13px;
    padding-inline: 12px;
  }
  .legend-list { grid-template-columns: 1fr; }
  .screen-legend .legend-item:nth-child(n+7) { display: none; }
}

@media (max-width: 980px) {
  .hero-inner,
  .workspace { width: calc(100% - 28px); }
  .hero-inner {
    min-height: 150px;
    padding-bottom: 31px;
  }
  .columns { grid-template-columns: 1fr; }
  .preview-card { min-height: 0; }
  .worksheet-shell { grid-template-columns: minmax(0, 1fr); }
  .paper { min-height: 640px; }
  .screen-legend { padding: 4px 0; }
  .screen-legend .legend-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .screen-legend .legend-item:nth-child(n) { display: flex; }
  .toolbar {
    align-items: flex-start;
    flex-direction: column;
  }
  .actions {
    width: 100%;
    justify-content: flex-end;
  }
}

@media (max-width: 620px) {
  .hero-inner {
    width: calc(100% - 24px);
    min-height: 156px;
    padding: 50px 0 25px;
  }
  .brand { gap: 12px; }
  .brand-icon {
    width: 52px;
    height: 52px;
    border-radius: 15px;
    font-size: 27px;
  }
  h1 { font-size: 26px; }
  .tagline { font-size: 14px; }
  .workspace {
    width: calc(100% - 20px);
    margin-top: -17px;
  }
  .input-card,
  .preview-card {
    padding: 19px 15px 16px;
    border-radius: 18px;
  }
  .card-heading { flex-direction: column; }
  .preview-card .card-heading { align-items: flex-start; }
  .word-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .picker-grid { grid-template-columns: repeat(7, minmax(0, 1fr)); }
  .custom-icon { grid-template-columns: 1fr auto; }
  .custom-icon span { grid-column: 1 / -1; }
  .worksheet-shell {
    padding: 8px;
    border-radius: 13px;
  }
  .paper {
    min-height: 0;
    padding: 9px;
  }
  .paper-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }
  .paper-head span { font-size: 9px; }
  .cell { font-size: 8px; }
  .cell.picture { font-size: 15px; }
  .screen-legend .legend-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .toolbar { padding: 15px; }
  .difficulty {
    width: 100%;
    align-items: flex-start;
    flex-wrap: wrap;
  }
  .segment {
    order: 3;
    width: 100%;
  }
  .segment button {
    min-width: 0;
    flex: 1;
  }
  .actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .actions .btn-primary { grid-column: 1 / -1; }
  .btn {
    width: 100%;
    min-width: 0;
    padding-inline: 11px;
  }
}

@media print {
  @page {
    size: A4 portrait;
    margin: 8mm;
  }

  html,
  body {
    min-width: 0;
    background: #fff;
  }

  body {
    print-color-adjust: exact;
    -webkit-print-color-adjust: exact;
  }

  .hero,
  .back-link,
  .input-card,
  .preview-card > .card-heading,
  .screen-legend,
  .toolbar,
  .toast {
    display: none !important;
  }

  .workspace {
    width: 100%;
    margin: 0;
    padding: 0;
  }

  .columns { display: block; }

  .preview-card,
  .worksheet-shell,
  .paper {
    min-height: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: #fff;
    box-shadow: none;
  }

  .worksheet-shell {
    display: block;
    overflow: visible;
  }

  .paper {
    width: 166mm;
    margin: 0 auto;
    display: block;
    padding-top: 8mm;
  }
  .paper-head { margin-bottom: 1.5mm; }
  .paper-head strong { font-size: 15pt; }
  .paper-head span { font-size: 8pt; }

  .instructions {
    margin: 0 0 2mm;
    font-size: 8pt;
  }

  .sudoku {
    width: 166mm;
    height: 166mm;
    margin: 0 auto;
  }

  .cell { font-size: 9.5pt; }
  .cell.picture { font-size: 17pt; }

  .print-legend {
    margin-top: 3mm;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5mm 3mm;
  }

  .print-legend .legend-item {
    padding: 1.5mm 2mm;
    border-radius: 2mm;
    font-size: 8.5pt;
  }

  .print-legend .legend-emoji {
    width: 8mm;
    height: 8mm;
    font-size: 15pt;
  }
}

/* Match the Chen Laoshi classroom palette without changing the worksheet layout. */
@media screen {
  .hero {
    background: linear-gradient(120deg, var(--blue-dark) 0%, var(--blue) 54%, var(--purple) 100%);
  }

  .hero::before,
  .hero::after { background: rgba(255, 249, 233, .1); }

  .back-link {
    border-radius: 999px;
    border-color: rgba(255, 249, 233, .7);
    background: rgba(255, 253, 247, .12);
  }

  .step.active {
    color: var(--blue-dark);
    border-color: var(--white);
    background: var(--white);
    box-shadow: 0 10px 26px rgba(16, 62, 55, .18);
  }

  .step.active .step-number,
  .step-chip {
    background: linear-gradient(135deg, var(--leaf), var(--leaf-light));
  }

  .count,
  .ready-pill {
    border: 1px solid #d8e5c7;
    background: #edf5df;
    color: var(--leaf);
  }

  .count.warning { background: #fff0e8; }

  .word-item { background: #fffef9; }

  .word-item:focus-within {
    border-color: var(--sun-deep);
    box-shadow: 0 0 0 3px rgba(248, 198, 63, .2);
  }

  .item-number { background: #f5f1e4; color: var(--muted); }

  .picture-box {
    background: linear-gradient(145deg, #edf5df, #fff2c6);
  }

  .picture-box:hover { box-shadow: 0 7px 14px rgba(53, 110, 87, .16); }

  .auto-match { background: #edf5df; color: var(--muted); }

  .icon-picker {
    border-color: #d8e5c7;
    background: #fffdf7;
    box-shadow: 0 12px 28px rgba(24, 66, 55, .11);
  }

  .picker-close { background: #f5f1e4; color: var(--muted); }

  .picker-option:hover,
  .picker-option.selected {
    border-color: var(--sun-deep);
    background: #fff2c6;
  }

  .mini-button,
  .segment button.active {
    background: linear-gradient(135deg, var(--coral), #d96d50);
    box-shadow: 0 4px 11px rgba(157, 57, 47, .22);
  }

  .worksheet-shell {
    border-color: var(--line);
    background: #f5f1e4;
  }

  .sudoku { border-color: var(--blue-dark); }
  .cell { border-color: #aebcae; color: var(--ink); }
  .cell.block-right { border-right-color: var(--blue-dark); }
  .cell.block-bottom { border-bottom-color: var(--blue-dark); }
  .cell.picture { background: #fff7dd; }
  .cell.answer { background: #edf5df; color: var(--blue-dark); }

  .legend-item { border-color: #d8e5c7; background: #fffef9; color: var(--ink); }
  .legend-emoji { background: #edf5df; }
  .segment { background: #f5f1e4; }
  .toolbar-label { color: var(--blue-dark); }

  .btn-secondary {
    border-color: #d8e5c7 !important;
    background: #fffef9 !important;
    box-shadow: none !important;
    color: var(--blue-dark) !important;
  }

  .btn-secondary:hover:not(:disabled) {
    border-color: var(--sun-deep) !important;
    background: #fff2c6 !important;
    box-shadow: 0 7px 18px rgba(53, 110, 87, .12) !important;
  }

  .btn-primary { box-shadow: 0 9px 20px rgba(157, 57, 47, .25); }
  .btn-primary:hover:not(:disabled) { box-shadow: 0 11px 24px rgba(157, 57, 47, .32); }
  .toast { background: var(--blue-dark); }
}