* {
  box-sizing: border-box;
}

:root {
  --bg: #121213;
  --panel: #18191a;
  --line: #2f3033;
  --text: #ffffff;
  --muted: #aaa;
  --key: #818384;
  --cell-border: #3a3a3c;
  --cell-filled: #565758;
  --green: #538d4e;
  --yellow: #b59f3b;
  --absent: #3a3a3c;
  --topbar-bg: rgba(18, 18, 19, 0.96);
  --button-hover: #2b2c2f;
  --modal-bg: #18191a;
  --subpanel: #111214;
  --track: #222326;
  --soft-panel: rgba(255, 255, 255, 0.025);
  --soft-yellow: rgba(181, 159, 59, 0.10);
  --danger-bg: rgba(180, 50, 50, 0.18);
  --secondary-border: #d7d7d7;
  --soft-text: #cfcfcf;
  --subtle-text: #ddd;
  --example-title: #f1f1f1;
}

[data-theme="light"] {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --line: #d7dce5;
  --text: #16181d;
  --muted: #5f6673;
  --key: #d5dae4;
  --cell-border: #c3c8d3;
  --cell-filled: #7b8494;
  --absent: #787c7e;
  --topbar-bg: rgba(244, 246, 251, 0.96);
  --button-hover: #e3e7ef;
  --modal-bg: #ffffff;
  --subpanel: #f7f8fb;
  --track: #e8ebf2;
  --soft-panel: rgba(0, 0, 0, 0.025);
  --soft-yellow: rgba(181, 159, 59, 0.14);
  --danger-bg: rgba(180, 50, 50, 0.10);
  --secondary-border: #9aa3b2;
  --soft-text: #4b5563;
  --subtle-text: #374151;
  --example-title: #374151;
}

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  height: 56px;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 18px;
  position: sticky;
  top: 0;
  background: var(--topbar-bg);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.topbar-title {
  font-size: 25px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-align: center;
}

.topbar-side {
  display: flex;
  align-items: center;
}

.topbar-left {
  justify-content: flex-start;
}

.topbar-actions {
  justify-content: flex-end;
  gap: 10px;
}

.topbar-button {
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-size: 24px;
  font-weight: 800;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.topbar-button:hover,
.topbar-button.active {
  background: var(--button-hover);
}

.game {
  text-align: center;
  width: min(720px, 100%);
  padding: 16px 20px 20px;
  margin: 0 auto;
}

.description {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: 22px;
  min-height: 22px;
}

#board {
  display: grid;
  gap: 7px;
  justify-content: center;
  margin-bottom: 24px;
}

.row {
  display: grid;
  grid-template-columns: repeat(8, 52px);
  gap: 6px;
  justify-content: center;
}

.row.shake {
  animation: shake-row 420ms ease-in-out;
}

@keyframes shake-row {
  0%, 100% {
    transform: translateX(0);
  }

  22% {
    transform: translateX(-5px);
  }

  48% {
    transform: translateX(5px);
  }

  74% {
    transform: translateX(-3px);
  }
}

.cell {
  width: 52px;
  height: 52px;
  border: 2px solid var(--cell-border);
  display: grid;
  place-items: center;
  font-size: 28px;
  font-weight: 800;
  text-transform: uppercase;
  user-select: none;
}

.cell.filled {
  border-color: var(--cell-filled);
}

.cell.reveal-pending {
  background: transparent;
  border-color: var(--cell-filled);
}

.cell.revealing {
  animation: reveal-cell 420ms ease-in-out;
}

@keyframes reveal-cell {
  0% {
    transform: rotateX(0deg);
  }

  45%, 55% {
    transform: rotateX(90deg);
  }

  100% {
    transform: rotateX(0deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .cell.revealing,
  .row.shake {
    animation: none;
  }
}
.row.active .cell:nth-child(-n + 3) {
  box-shadow: 0 0 8px rgba(255, 80, 80, 0.75);
}

.row.active .cell:nth-child(4),
.row.active .cell:nth-child(5) {
  box-shadow: 0 0 8px rgba(180, 90, 255, 0.75);
}

.row.active .cell:nth-child(n + 6) {
  box-shadow: 0 0 8px rgba(80, 140, 255, 0.75);
}

.row.submitted .cell:nth-child(-n + 3) {
  box-shadow: 0 0 4px rgba(255, 80, 80, 0.65);
}

.row.submitted .cell:nth-child(4),
.row.submitted .cell:nth-child(5) {
  box-shadow: 0 0 4px rgba(180, 90, 255, 0.65);
}

.row.submitted .cell:nth-child(n + 6) {
  box-shadow: 0 0 4px rgba(80, 140, 255, 0.65);
}

.correct {
  background: var(--green);
  border-color: var(--green);
}

.present {
  background: var(--yellow);
  border-color: var(--yellow);
}

.absent {
  background: var(--absent);
  border-color: var(--absent);
}

#message {
  min-height: 24px;
  margin-bottom: 14px;
  color: var(--subtle-text);
  font-weight: 600;
}

.action-panel {
  margin: 0 auto 16px;
}

.result-panel {
  width: min(420px, 100%);
  margin: 0 auto 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
}

.result-panel h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.result-panel p {
  margin: 7px 0;
  color: var(--subtle-text);
}

.secondary-button {
  min-width: 180px;
  min-height: 44px;
  margin: 10px 4px 0;
  padding: 0 18px;
  border: 1px solid var(--secondary-border);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-size: 16px;
  font-weight: 750;
  cursor: pointer;
}

.secondary-button:hover {
  background: var(--button-hover);
}

#keyboard {
  display: grid;
  gap: 8px;
  justify-content: center;
  margin: 0 auto;
  max-width: 680px;
}

.keyboard-row {
  display: flex;
  gap: 6px;
  justify-content: center;
}

.key {
  min-width: 42px;
  height: 52px;
  padding: 0 10px;
  border: none;
  border-radius: 4px;
  background: var(--key);
  color: var(--text);
  font-size: 20px;
  font-weight: 800;
  cursor: pointer;
  user-select: none;
  text-transform: uppercase;
}

.key:hover {
  filter: brightness(1.12);
}

.key.wide {
  min-width: 72px;
  font-size: 15px;
}

.key.space {
  width: min(420px, 80vw);
  font-size: 15px;
}

.key.correct {
  background: var(--green);
}

.key.present {
  background: var(--yellow);
}

.key.absent {
  background: var(--absent);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.64);
}

.modal-card {
  width: min(520px, 100%);
  position: relative;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
  background: var(--modal-bg);
  text-align: left;
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.45);
}

.modal-card h2 {
  margin: 0 0 14px;
}

.modal-card p {
  color: var(--subtle-text);
}

.modal-card li {
  margin: 8px 0;
  color: var(--subtle-text);
}

.modal-close {
  position: absolute;
  right: 14px;
  top: 12px;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-size: 26px;
  cursor: pointer;
}

.modal-close:hover {
  background: var(--button-hover);
}

.rule-example {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 16px 0;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.rule-overlap {
  color: #c892ff;
}

[hidden] {
  display: none !important;
}

@media (max-width: 620px) {
  .topbar {
    padding: 0 10px;
  }

  .topbar-title {
    font-size: 20px;
    letter-spacing: 0.08em;
  }

  .topbar-actions {
    gap: 3px;
  }

  .topbar-button {
    width: 34px;
    height: 34px;
    font-size: 20px;
  }

  #settings-button {
    font-size: 24px;
  }

  #mode-toggle-button {
  font-size: 21px;
}

  #rules-button {
    font-size: 18px;
  }

  .row {
    grid-template-columns: repeat(8, 10.5vw);
    gap: 4px;
  }

  .cell {
    width: 10.5vw;
    height: 10.5vw;
    font-size: 6vw;
  }

  .key {
    min-width: 7.5vw;
    height: 46px;
    padding: 0 4px;
    font-size: 16px;
  }

  .key.wide {
    min-width: 13vw;
    font-size: 12px;
  }

  .key.space {
    width: 72vw;
    font-size: 12px;
  }
}

.stats-note {
  color: var(--soft-text);
  margin: 0 0 16px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin: 14px 0 22px;
}

.stat-card {
  min-height: 82px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 8px;
  background: var(--subpanel);
  text-align: center;
}

.stat-card strong {
  display: block;
  font-size: 28px;
  line-height: 1.1;
}

.stat-card span {
  display: block;
  margin-top: 6px;
  color: var(--soft-text);
  font-size: 12px;
  line-height: 1.15;
}

.stats-subtitle {
  margin: 18px 0 12px;
}

.stats-distribution {
  display: grid;
  gap: 8px;
}

.distribution-row {
  display: grid;
  grid-template-columns: 24px 1fr 34px;
  gap: 8px;
  align-items: center;
}

.distribution-label {
  color: var(--subtle-text);
  font-weight: 800;
  text-align: right;
}

.distribution-track {
  height: 24px;
  border-radius: 6px;
  background: var(--track);
  overflow: hidden;
}

.distribution-bar {
  min-width: 24px;
  height: 100%;
  display: grid;
  place-items: center;
  background: var(--green);
  font-size: 13px;
  font-weight: 800;
}

.distribution-bar.empty {
  min-width: 0;
  width: 0 !important;
}

.distribution-value {
  color: var(--subtle-text);
  font-weight: 800;
  text-align: left;
}

@media (max-width: 620px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-card strong {
    font-size: 24px;
  }
}

.rules-card {
  max-height: min(760px, 92vh);
  overflow-y: auto;
}

.rules-card p {
  line-height: 1.45;
}

.rules-mini-title {
  margin-bottom: 6px;
  color: var(--example-title);
  font-weight: 800;
}

.scheme-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 16px 0;
  font-size: 30px;
  font-weight: 950;
  letter-spacing: 0.12em;
  line-height: 1.1;
  color: #fff;
}

.scheme-line-small {
  margin: 8px 0 12px;
  font-size: 24px;
}

.scheme-plus {
  margin: 0 12px;
  color: #f3f3f3;
  letter-spacing: 0;
}

.scheme-red {
  color: #ff9f9f;
  text-shadow: 0 0 12px rgba(255, 100, 100, 0.24);
}

.scheme-purple {
  color: #cf9cff;
  text-shadow: 0 0 12px rgba(170, 90, 255, 0.28);
}

.scheme-blue {
  color: #9bbcff;
  text-shadow: 0 0 12px rgba(80, 140, 255, 0.26);
}

.rules-example-block {
  margin: 18px 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--soft-panel);
}

.demo-tiles {
  display: grid;
  grid-template-columns: repeat(8, 42px);
  gap: 5px;
  justify-content: center;
  margin: 14px 0;
}

.demo-tile {
  width: 42px;
  height: 42px;
  border: 2px solid var(--cell-border);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 23px;
  font-weight: 900;
  user-select: none;
}

.demo-tile.correct {
  background: var(--green);
  border-color: var(--green);
}

.demo-tile.present {
  background: var(--yellow);
  border-color: var(--yellow);
}

.demo-tile.absent {
  background: var(--absent);
  border-color: var(--absent);
}

.demo-tile.structure-red,
.demo-tile.structure-purple,
.demo-tile.structure-blue,
.demo-tile.draft {
  background: #151617;
}

.demo-tile.structure-red {
  border-color: rgba(255, 120, 120, 0.64);
  box-shadow: 0 0 6px rgba(255, 80, 80, 0.32);
}

.demo-tile.structure-purple {
  border-color: rgba(190, 120, 255, 0.68);
  box-shadow: 0 0 6px rgba(180, 90, 255, 0.34);
}

.demo-tile.structure-blue {
  border-color: rgba(120, 165, 255, 0.68);
  box-shadow: 0 0 6px rgba(80, 140, 255, 0.34);
}

.demo-tile.draft {
  border-color: #4d4f53;
}

.demo-tile.blank {
  color: #c9c9c9;
}

.rules-color-list {
  padding-left: 0;
  list-style: none;
}

.rules-color-list li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  margin: 10px 0;
}

.color-chip {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  margin-top: 3px;
  display: inline-block;
}

.color-chip.correct {
  background: var(--green);
}

.color-chip.present {
  background: var(--yellow);
}

.color-chip.absent {
  background: var(--absent);
}

.rules-soft-note {
  margin: 14px 0;
  padding: 12px 14px;
  border-left: 3px solid var(--yellow);
  border-radius: 10px;
  background: var(--soft-yellow);
}

.key-pill {
  display: inline-block;
  padding: 2px 7px;
  border: 1px solid #777;
  border-radius: 6px;
  background: var(--track);
  color: #fff;
  font-size: 0.86em;
  font-weight: 900;
  letter-spacing: 0.04em;
}

@media (max-width: 620px) {
  .scheme-line {
    font-size: 23px;
    letter-spacing: 0.08em;
  }

  .scheme-line-small {
    font-size: 20px;
  }

  .scheme-plus {
    margin: 0 8px;
  }

  .demo-tiles {
    grid-template-columns: repeat(8, 9.4vw);
    gap: 4px;
  }

  .demo-tile {
    width: 9.4vw;
    height: 9.4vw;
    font-size: 5.4vw;
  }
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--soft-panel);
  cursor: pointer;
}

.setting-copy {
  display: grid;
  gap: 4px;
}

.setting-copy strong {
  color: var(--text);
  font-size: 17px;
}

.setting-copy small {
  color: var(--soft-text);
  font-size: 13px;
}

.switch {
  position: relative;
  width: 54px;
  height: 30px;
  flex: 0 0 auto;
}

.switch input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.switch-slider {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: #3a3a3c;
  transition: background 180ms ease;
}

.switch-slider::before {
  content: "";
  position: absolute;
  width: 24px;
  height: 24px;
  left: 3px;
  top: 3px;
  border-radius: 999px;
  background: #fff;
  transition: transform 180ms ease;
}

.switch input:checked + .switch-slider {
  background: var(--green);
}

.switch input:checked + .switch-slider::before {
  transform: translateX(24px);
}

.switch input:focus-visible + .switch-slider {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.setting-row-stacked {
  align-items: stretch;
  flex-direction: column;
}

.segmented-control {
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--track);
}

.segment-button {
  min-height: 38px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.segment-button.active {
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.16);
}

.segment-button:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

[data-theme="light"] .topbar {
  box-shadow: 0 1px 12px rgba(20, 28, 45, 0.06);
}

[data-theme="light"] .key,
[data-theme="light"] .secondary-button,
[data-theme="light"] .topbar-button {
  color: var(--text);
}

[data-theme="light"] .key.correct,
[data-theme="light"] .key.present,
[data-theme="light"] .key.absent,
[data-theme="light"] .cell.correct,
[data-theme="light"] .cell.present,
[data-theme="light"] .cell.absent,
[data-theme="light"] .demo-tile.correct,
[data-theme="light"] .demo-tile.present,
[data-theme="light"] .demo-tile.absent {
  color: #ffffff;
}

[data-theme="light"] .result-answer,
[data-theme="light"] .result-meta,
[data-theme="light"] .rules-card p,
[data-theme="light"] .rules-color-list li,
[data-theme="light"] .stats-note,
[data-theme="light"] .stat-card span,
[data-theme="light"] .distribution-label,
[data-theme="light"] .distribution-value,
[data-theme="light"] #message {
  color: var(--soft-text);
}

[data-theme="light"] .modal-card h2,
[data-theme="light"] .modal-card h3,
[data-theme="light"] .result-title,
[data-theme="light"] .stat-card strong {
  color: var(--text);
}

[data-theme="light"] .key.correct,
[data-theme="light"] .key.present,
[data-theme="light"] .key.absent,
[data-theme="light"] .cell.correct,
[data-theme="light"] .cell.present,
[data-theme="light"] .cell.absent,
[data-theme="light"] .demo-tile.correct,
[data-theme="light"] .demo-tile.present,
[data-theme="light"] .demo-tile.absent,
[data-theme="light"] .distribution-bar {
  color: #ffffff;
}

.cell.correct.reveal-pending,
.cell.present.reveal-pending,
.cell.absent.reveal-pending {
  background: transparent;
  border-color: var(--cell-filled);
  color: var(--text);
}

[data-theme="light"] .cell.correct.reveal-pending,
[data-theme="light"] .cell.present.reveal-pending,
[data-theme="light"] .cell.absent.reveal-pending {
  color: var(--text);
}

.cell.win-wave {
  animation: win-wave-cell 420ms ease-in-out both;
}

@keyframes win-wave-cell {
  0%, 100% {
    transform: translateY(0);
  }

  30% {
    transform: translateY(-7px);
  }

  60% {
    transform: translateY(4px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .cell.win-wave {
    animation: none;
  }
}

[data-theme="light"] .scheme-plus,
[data-theme="light"] .key-pill {
  color: var(--subtle-text);
}

[data-theme="light"] .key-pill {
  background: #eef1f6;
  border-color: #a8b0bd;
}

[data-theme="light"] .scheme-red {
  color: #e66a73;
  text-shadow: 0 0 8px rgba(230, 106, 115, 0.18);
}

[data-theme="light"] .scheme-purple {
  color: #a36be8;
  text-shadow: 0 0 8px rgba(163, 107, 232, 0.18);
}

[data-theme="light"] .scheme-blue {
  color: #5f8fe8;
  text-shadow: 0 0 8px rgba(95, 143, 232, 0.18);
}

[data-theme="light"] .demo-tile.structure-red,
[data-theme="light"] .demo-tile.structure-purple,
[data-theme="light"] .demo-tile.structure-blue,
[data-theme="light"] .demo-tile.draft {
  background: #ffffff;
  color: var(--text);
}

[data-theme="light"] .demo-tile.blank {
  color: var(--subtle-text);
}

[data-theme="light"] .demo-tile.draft {
  border-color: var(--cell-border);
}

@media (max-width: 430px) {
  .topbar {
    grid-template-columns: auto 1fr auto;
    height: 52px;
    padding: 0 6px;
  }

  .topbar-title {
    justify-self: center;
    font-size: 18px;
    letter-spacing: 0.07em;
  }

  .topbar-actions {
    gap: 1px;
  }

  .topbar-button {
    width: 30px;
    height: 30px;
    font-size: 18px;
  }

  #mode-toggle-button,
  #stats-button {
    font-size: 18px;
  }

  #rules-button {
    font-size: 16px;
    border-width: 2px;
  }

  #settings-button {
    font-size: 22px;
  }

  .game {
    padding: 12px 8px 10px;
  }

  .description {
    margin-bottom: 14px;
    min-height: 20px;
    font-size: 15px;
  }

  #board {
    gap: 5px;
    margin-bottom: 16px;
  }

  .row {
    width: min(100%, 404px);
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: 4px;
  }

  .cell {
    width: 100%;
    height: auto;
    aspect-ratio: 1;
    font-size: clamp(20px, 7vw, 28px);
  }

  #message {
    min-height: 22px;
    margin-bottom: 10px;
    font-size: 14px;
  }

  .action-panel {
    margin-bottom: 10px;
  }

  .result-panel {
    width: min(100%, 420px);
    padding: 16px 14px;
    margin-bottom: 12px;
  }

  .result-panel h2 {
    font-size: 23px;
  }

  .result-panel p {
    margin: 6px 0;
  }

  .secondary-button {
    width: 100%;
    min-width: 0;
    min-height: 44px;
    margin: 8px 0 0;
  }

  #keyboard {
    width: min(100%, 420px);
    gap: 6px;
  }

  .keyboard-row {
    width: 100%;
    gap: 4px;
  }

  .key {
    flex: 1 1 0;
    min-width: 0;
    height: 44px;
    padding: 0 2px;
    font-size: clamp(14px, 4.4vw, 18px);
  }

  .key.wide {
    flex: 1.55 1 0;
    min-width: 0;
    font-size: 11px;
  }

  .key.space {
    width: min(360px, 86vw);
    height: 42px;
    font-size: 12px;
  }

  .modal-backdrop {
    padding: 8px;
    align-items: stretch;
  }

  .modal-card {
    width: 100%;
    max-height: calc(100vh - 16px);
    padding: 20px 14px;
    border-radius: 18px;
    overflow-y: auto;
  }

  .modal-close {
    right: 8px;
    top: 8px;
  }

  .rules-card {
    max-height: calc(100vh - 16px);
  }

  .scheme-line {
    font-size: 20px;
    letter-spacing: 0.05em;
    margin: 14px 0;
  }

  .scheme-line-small {
    font-size: 18px;
  }

  .scheme-plus {
    margin: 0 6px;
  }

  .rules-example-block {
    padding: 12px 10px;
  }

  .demo-tiles {
    width: 100%;
    max-width: 360px;
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: 4px;
  }

  .demo-tile {
    width: 100%;
    height: auto;
    aspect-ratio: 1;
    font-size: clamp(18px, 5.4vw, 23px);
  }

  .rules-soft-note {
    padding: 11px 12px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 7px;
  }

  .stat-card {
    min-height: 76px;
    padding: 9px 6px;
  }

  .stat-card strong {
    font-size: 24px;
  }

  .stat-card span {
    font-size: 11px;
  }

  .distribution-row {
    grid-template-columns: 22px 1fr 28px;
    gap: 6px;
  }

  .setting-row {
    padding: 14px 12px;
  }
}

@media (max-width: 360px) {
  .topbar-title {
    font-size: 16px;
    letter-spacing: 0.05em;
  }

  .topbar-button {
    width: 28px;
    height: 28px;
  }

  #mode-toggle-button,
  #stats-button {
    font-size: 17px;
  }

  #rules-button {
    font-size: 15px;
  }

  #settings-button {
    font-size: 21px;
  }

  .keyboard-row {
    gap: 3px;
  }

  .key {
    height: 42px;
    font-size: 14px;
  }

  .key.wide {
    font-size: 10px;
  }

  .scheme-line {
    font-size: 18px;
    letter-spacing: 0.04em;
  }

  .scheme-line-small {
    font-size: 16px;
  }
}

@media (max-width: 430px) {
  #board {
    width: min(100%, 348px);
    margin-left: auto;
    margin-right: auto;
  }

  .row {
    width: 100%;
    grid-template-columns: repeat(8, 1fr);
  }

  .cell {
    min-width: 0;
  }

  .keyboard-row {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .keyboard-row .key {
    width: auto;
    min-width: 0;
  }

  .keyboard-row .key.wide {
    flex: initial;
    grid-column: span 2;
    font-size: clamp(8px, 2.7vw, 10px);
    letter-spacing: -0.05em;
  }

  .keyboard-row .key:not(.wide) {
    grid-column: span 1;
  }
}

@media (max-width: 360px) {
  #board {
    width: min(100%, 332px);
  }

  .keyboard-row .key.wide {
    font-size: clamp(7px, 2.6vw, 9px);
  }
}

@media (max-width: 430px) {
  :root {
    --mobile-board-width: min(calc(100vw - 32px), 348px);
    --mobile-board-gap: 4px;
    --mobile-cell-size: calc((var(--mobile-board-width) - var(--mobile-board-gap) * 7) / 8);
  }

  #board {
    width: var(--mobile-board-width);
    margin-left: auto;
    margin-right: auto;
  }

  .row {
    width: var(--mobile-board-width);
    grid-template-columns: repeat(8, var(--mobile-cell-size));
    gap: var(--mobile-board-gap);
  }

  .cell {
    width: var(--mobile-cell-size);
    height: var(--mobile-cell-size);
    aspect-ratio: auto;
    min-width: 0;
  }

  .keyboard-row {
    display: flex;
    width: 100%;
    gap: 4px;
  }

  .keyboard-row .key {
    width: auto;
    min-width: 0;
    flex: 1 1 0;
  }

  .keyboard-row .key:not(.wide) {
    grid-column: auto;
  }

  .keyboard-row .key.wide {
    grid-column: auto;
    flex: 1.6 1 0;
    font-size: clamp(8px, 2.45vw, 10px);
    letter-spacing: -0.08em;
    white-space: nowrap;
    overflow: hidden;
  }

  .key.space {
    width: 100%;
    flex: none;
    letter-spacing: 0.04em;
  }
}

@media (max-width: 360px) {
  :root {
    --mobile-board-width: min(calc(100vw - 28px), 332px);
    --mobile-board-gap: 3px;
  }

  .keyboard-row {
    gap: 3px;
  }

  .keyboard-row .key.wide {
    font-size: clamp(7px, 2.35vw, 9px);
    letter-spacing: -0.1em;
  }
}

@media (max-width: 430px) {
  #keyboard {
    width: var(--mobile-board-width);
    margin-left: auto;
    margin-right: auto;
  }

  .keyboard-row {
    width: 100%;
    display: flex;
    justify-content: stretch;
    gap: 4px;
  }

  .keyboard-row .key {
    flex: 1 1 0;
    min-width: 0;
    width: auto;
  }

  .keyboard-row .key.wide {
    flex: 2 1 0;
    min-width: 0;
    font-size: clamp(9px, 2.6vw, 11px);
    letter-spacing: -0.03em;
    white-space: nowrap;
    overflow: hidden;
  }

  .key.space {
    width: 100%;
    flex: none;
  }
}

@media (max-width: 360px) {
  .keyboard-row {
    gap: 3px;
  }

  .keyboard-row .key.wide {
    font-size: clamp(8px, 2.55vw, 10px);
    letter-spacing: -0.04em;
  }
}

@media (max-width: 430px) {
  #keyboard {
    width: var(--mobile-board-width) !important;
    max-width: var(--mobile-board-width) !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
    gap: 6px !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }

  #keyboard .keyboard-row {
    width: 100% !important;
    display: flex !important;
    justify-content: stretch !important;
    align-items: stretch !important;
    gap: 4px !important;
  }

  #keyboard .keyboard-row .key {
    flex: 1 1 0 !important;
    width: auto !important;
    min-width: 0 !important;
    max-width: none !important;
    padding-left: 1px !important;
    padding-right: 1px !important;
  }

  #keyboard .keyboard-row .key.wide {
    flex: 2.6 1 0 !important;
    font-size: clamp(8px, 2.45vw, 10px) !important;
    letter-spacing: -0.06em !important;
    white-space: nowrap !important;
    overflow: hidden !important;
  }

  #keyboard .keyboard-row .key.space {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 auto !important;
    letter-spacing: 0.04em !important;
  }
}

@media (max-width: 360px) {
  #keyboard {
    gap: 5px !important;
  }

  #keyboard .keyboard-row {
    gap: 3px !important;
  }

  #keyboard .keyboard-row .key.wide {
    flex: 2.75 1 0 !important;
    font-size: clamp(7px, 2.35vw, 9px) !important;
    letter-spacing: -0.08em !important;
  }
}

@media (max-width: 430px) {
  #keyboard .keyboard-row .key.key-enter {
    flex: 2.65 1 0 !important;
  }

  #keyboard .keyboard-row .key.key-backspace {
    flex: 1.15 1 0 !important;
    font-size: clamp(12px, 3.1vw, 14px) !important;
    letter-spacing: 0 !important;
  }

  #mode-toggle-button {
    font-size: 20px;
  }
}

@media (max-width: 360px) {
  #keyboard .keyboard-row .key.key-enter {
    flex: 2.75 1 0 !important;
  }

  #keyboard .keyboard-row .key.key-backspace {
    flex: 1.1 1 0 !important;
    font-size: clamp(11px, 3vw, 13px) !important;
  }

  #mode-toggle-button {
    font-size: 19px;
  }
}

@media (max-width: 430px) {
  #keyboard .keyboard-row .key.key-enter {
    flex: 2.65 1 0 !important;
  }

  #keyboard .keyboard-row .key.key-backspace {
    flex: 1.05 1 0 !important;
    font-size: clamp(12px, 3vw, 14px) !important;
    letter-spacing: 0 !important;
  }
}

@media (max-width: 360px) {
  #keyboard .keyboard-row .key.key-enter {
    flex: 2.75 1 0 !important;
  }

  #keyboard .keyboard-row .key.key-backspace {
    flex: 1 1 0 !important;
    font-size: clamp(11px, 2.9vw, 13px) !important;
  }
}

@media (min-width: 431px) {
  .key.key-backspace {
    font-size: 22px;
  }
}

@media (min-width: 431px) {
  .key.key-backspace {
    display: grid;
    place-items: center;
    line-height: 1;
    padding: 0;
    font-size: 23px;
  }
}

body.modal-open {
  overflow: hidden;
}

.topbar-button:focus-visible,
.key:focus-visible,
.secondary-button:focus-visible,
.modal-close:focus-visible,
.segment-button:focus-visible {
  outline: 3px solid var(--text);
  outline-offset: 3px;
}

[data-theme="light"] .topbar-button:focus-visible,
[data-theme="light"] .key:focus-visible,
[data-theme="light"] .secondary-button:focus-visible,
[data-theme="light"] .modal-close:focus-visible,
[data-theme="light"] .segment-button:focus-visible {
  outline-color: #1f2937;
}

.modal-backdrop[hidden] {
  display: none;
}

@media (max-width: 430px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats-grid .stat-card:nth-child(3) {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stats-grid .stat-card:nth-child(3) {
    grid-column: 1 / -1;
  }
}

.drawer-backdrop {
  display: flex;
  align-items: stretch;
  justify-content: flex-start;
  padding: 0;
}

.drawer-panel {
  width: min(340px, 88vw);
  min-height: 100vh;
  position: relative;
  padding: 26px 20px;
  border-right: 1px solid var(--line);
  background: var(--modal-bg);
  box-shadow: 16px 0 60px rgba(0, 0, 0, 0.34);
  text-align: left;
}

.drawer-panel h2 {
  margin: 0;
  font-size: 25px;
  letter-spacing: 0.10em;
}

.drawer-subtitle {
  margin: 8px 0 22px;
  color: var(--soft-text);
}

.drawer-close {
  right: 12px;
  top: 12px;
}

.drawer-nav {
  display: grid;
  gap: 10px;
}

.drawer-link {
  width: 100%;
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: center;
  padding: 13px 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--soft-panel);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  font: inherit;
}

.drawer-link:hover {
  background: var(--button-hover);
}

.drawer-link:focus-visible {
  outline: 3px solid var(--text);
  outline-offset: 3px;
}

.drawer-link-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--track);
  font-size: 18px;
}

.drawer-link strong {
  display: block;
  margin-bottom: 2px;
  font-size: 16px;
}

.drawer-link small {
  display: block;
  color: var(--soft-text);
  font-size: 13px;
}

.compact-modal-card {
  max-width: 460px;
}

@media (max-width: 430px) {
  .drawer-panel {
    width: min(318px, 88vw);
    padding: 22px 16px;
  }

  .drawer-panel h2 {
    font-size: 22px;
  }
}

.drawer-backdrop {
  opacity: 0;
  transition: opacity 240ms ease;
}

.drawer-backdrop.drawer-open {
  opacity: 1;
}

.drawer-panel {
  transform: translateX(-104%);
  transition: transform 240ms ease;
  will-change: transform;
}

.drawer-backdrop.drawer-open .drawer-panel {
  transform: translateX(0);
}

.drawer-backdrop.drawer-closing {
  opacity: 0;
}

.drawer-backdrop.drawer-closing .drawer-panel {
  transform: translateX(-104%);
}

@media (prefers-reduced-motion: reduce) {
  .drawer-backdrop,
  .drawer-panel {
    transition: none;
  }
}

.drawer-backdrop.drawer-keep-backdrop,
.drawer-backdrop.drawer-keep-backdrop.drawer-closing {
  opacity: 1;
}

.drawer-backdrop.drawer-keep-backdrop.drawer-closing .drawer-panel {
  transform: translateX(-104%);
}

.topbar-actions {
  gap: 7px;
}

.topbar-button {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  padding: 0;
  line-height: 1;
  border-radius: 12px;
}

.topbar-button:hover {
  background: var(--button-hover);
}

#rules-button {
  border: none;
  border-radius: 12px;
}

#mode-toggle-button,
#stats-button {
  font-size: 20px;
}

#rules-button {
  font-size: 21px;
}

#settings-button {
  font-size: 23px;
  transform: none;
}

@media (max-width: 430px) {
  .topbar-actions {
    gap: 5px;
  }

  .topbar-button {
    width: 31px;
    height: 31px;
    border-radius: 10px;
  }

  #mode-toggle-button,
  #stats-button {
    font-size: 18px;
  }

  #rules-button {
    font-size: 19px;
    border: none;
  }

  #settings-button {
    font-size: 21px;
    transform: none;
  }
}

@media (max-width: 360px) {
  .topbar-actions {
    gap: 4px;
  }

  .topbar-button {
    width: 29px;
    height: 29px;
  }

  #mode-toggle-button,
  #stats-button {
    font-size: 17px;
  }

  #rules-button {
    font-size: 18px;
  }

  #settings-button {
    font-size: 20px;
  }
}

.svg-icon {
  display: block;
  width: 1.25em;
  height: 1.25em;
  flex: 0 0 auto;
  background-color: currentColor;
  mask-position: center;
  mask-repeat: no-repeat;
  mask-size: contain;
  -webkit-mask-position: center;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: contain;
}

.icon-menu {
  mask-image: url("../assets/icons/icon-menu.svg");
  -webkit-mask-image: url("../assets/icons/icon-menu.svg");
}

.icon-infinity {
  mask-image: url("../assets/icons/icon-infinity.svg");
  -webkit-mask-image: url("../assets/icons/icon-infinity.svg");
}

.icon-daily {
  mask-image: url("../assets/icons/icon-daily.svg");
  -webkit-mask-image: url("../assets/icons/icon-daily.svg");
}

.icon-stats {
  mask-image: url("../assets/icons/icon-stats.svg");
  -webkit-mask-image: url("../assets/icons/icon-stats.svg");
}

.icon-help {
  mask-image: url("../assets/icons/icon-help.svg");
  -webkit-mask-image: url("../assets/icons/icon-help.svg");
}

.icon-settings {
  mask-image: url("../assets/icons/icon-settings.svg");
  -webkit-mask-image: url("../assets/icons/icon-settings.svg");
}

.icon-feedback {
  mask-image: url("../assets/icons/icon-feedback.svg");
  -webkit-mask-image: url("../assets/icons/icon-feedback.svg");
}

.icon-donations {
  mask-image: url("../assets/icons/icon-donations.svg");
  -webkit-mask-image: url("../assets/icons/icon-donations.svg");
}

.icon-close {
  mask-image: url("../assets/icons/icon-close.svg");
  -webkit-mask-image: url("../assets/icons/icon-close.svg");
}

.topbar-actions {
  gap: 7px;
}

.topbar-button {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  padding: 0;
  line-height: 1;
  border: none;
  border-radius: 12px;
}

.topbar-button .svg-icon {
  width: 21px;
  height: 21px;
}

#mode-toggle-button,
#stats-button,
#rules-button,
#settings-button {
  font-size: inherit;
  transform: none;
}

#mode-toggle-button .svg-icon,
#stats-button .svg-icon,
#rules-button .svg-icon,
#settings-button .svg-icon {
  width: 21px;
  height: 21px;
}

#settings-button .svg-icon {
  width: 22px;
  height: 22px;
}

.modal-close {
  display: grid;
  place-items: center;
  padding: 0;
  line-height: 1;
}

.modal-close .svg-icon {
  width: 18px;
  height: 18px;
}

.drawer-link-icon .svg-icon {
  width: 20px;
  height: 20px;
}

@media (max-width: 430px) {
  .topbar-actions {
    gap: 5px;
  }

  .topbar-button {
    width: 31px;
    height: 31px;
    border-radius: 10px;
  }

  .topbar-button .svg-icon,
  #mode-toggle-button .svg-icon,
  #stats-button .svg-icon,
  #rules-button .svg-icon,
  #settings-button .svg-icon {
    width: 19px;
    height: 19px;
  }

  #settings-button .svg-icon {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 360px) {
  .topbar-actions {
    gap: 4px;
  }

  .topbar-button {
    width: 29px;
    height: 29px;
  }

  .topbar-button .svg-icon,
  #mode-toggle-button .svg-icon,
  #stats-button .svg-icon,
  #rules-button .svg-icon,
  #settings-button .svg-icon {
    width: 18px;
    height: 18px;
  }

  #settings-button .svg-icon {
    width: 19px;
    height: 19px;
  }
}

.contact-card {
  max-width: 500px;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.modal-action-link {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 190px;
  padding: 0 16px;
  border: 1px solid var(--secondary-border);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-weight: 750;
  text-decoration: none;
  text-align: center;
}

.modal-action-link:hover {
  background: var(--button-hover);
}

.modal-action-link:focus-visible {
  outline: 3px solid var(--text);
  outline-offset: 3px;
}

.primary-modal-action {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.primary-modal-action:hover {
  filter: brightness(0.92);
  background: var(--text);
}

.modal-note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.45;
}

.modal-note a {
  color: inherit;
  font-weight: 750;
}

.donation-widget {
  display: flex;
  justify-content: center;
  margin: 18px 0 4px;
}

.donation-frame {
  width: min(330px, 100%);
  height: 50px;
  border: 0;
  overflow: hidden;
}

@media (max-width: 430px) {
  .modal-actions {
    display: grid;
    gap: 9px;
  }

  .modal-action-link {
    flex-basis: auto;
    min-height: 40px;
  }
}

#support-modal .modal-note {
  color: var(--subtle-text);
}

#support-modal .donation-widget {
  margin-top: 14px;
}

:root {
  --topbar-button-surface: rgba(255, 255, 255, 0.055);
  --topbar-button-surface-hover: var(--button-hover);
}

[data-theme="light"] {
  --topbar-button-surface: rgba(255, 255, 255, 0.74);
  --topbar-button-surface-hover: var(--button-hover);
}

.topbar-button {
  background: var(--topbar-button-surface);
  transition: background-color 150ms ease;
}

.topbar-button:hover,
.topbar-button.active,
.topbar-button:focus-visible {
  background: var(--topbar-button-surface-hover);
}

@media (prefers-reduced-motion: reduce) {
  .topbar-button {
    transition: none;
  }
}

.legal-page {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 28px 18px 40px;
}

.legal-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  background: var(--panel);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.18);
}

.legal-card-compact {
  text-align: center;
}

.legal-card h1 {
  margin: 14px 0 8px;
  font-size: clamp(30px, 7vw, 44px);
  letter-spacing: 0.02em;
}

.legal-card h2 {
  margin: 26px 0 8px;
  font-size: 21px;
}

.legal-card p {
  color: var(--subtle-text);
  line-height: 1.58;
}

.legal-card a {
  color: inherit;
  font-weight: 750;
}

.legal-updated {
  margin-top: 0;
  color: var(--soft-text);
  font-size: 14px;
}

.legal-back-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--soft-panel);
  color: var(--text);
  text-decoration: none;
}

.legal-back-link:hover,
.legal-home-button:hover {
  background: var(--button-hover);
}

.legal-home-button {
  margin-top: 8px;
}

.drawer-link {
  text-decoration: none;
}

@media (max-width: 430px) {
  .legal-page {
    padding: 14px 10px 24px;
  }

  .legal-card {
    padding: 20px 14px;
    border-radius: 18px;
  }
}