.brand--link {
  color: inherit;
  text-decoration: none;
}

.words-shell {
  max-width: 1140px;
  padding-top: clamp(0.9rem, 2vw, 1.4rem);
}

.words-heading {
  margin-bottom: 2.25rem;
  text-align: center;
}

.words-heading h1 {
  margin: 0.55rem 0 0.5rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
}

.words-heading p {
  margin: 0;
  color: var(--muted);
  font: 1rem "Space Grotesk", "Trebuchet MS", sans-serif;
}

.mode-tabs {
  display: flex;
  justify-content: center;
  gap: clamp(0.75rem, 3vw, 1.5rem);
  margin-bottom: clamp(2.25rem, 5vw, 3.25rem);
}

.mode-tab {
  min-width: clamp(135px, 22vw, 190px);
  padding: 1.2rem 1rem;
  border: 1px solid #d4a05d;
  border-radius: 0.8rem;
  background: var(--accent-soft);
  color: var(--ink);
  font-size: 1.2rem;
  font-weight: 600;
}

.mode-tab.is-active {
  border-color: var(--accent-dark);
  background: var(--accent);
  color: #fff;
}

.word-levels {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2rem);
}

.level-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  column-gap: clamp(1rem, 3vw, 1.75rem);
  row-gap: 0.9rem;
  padding: clamp(1.15rem, 2.5vw, 1.6rem);
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.82);
}

.level-title {
  grid-column: 1;
  grid-row: 1;
  align-self: center;
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 1.7rem);
}

.word-tiles {
  grid-column: 1 / -1;
  grid-row: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.word-tile {
  display: grid;
  place-items: center;
  gap: 0.18rem;
  width: 68px;
  min-height: 68px;
  padding: 0.35rem;
  border-radius: 0.7rem;
  color: #fff;
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
}

.word-tile--insight {
  cursor: pointer;
}

.word-tile--insight:hover {
  box-shadow: 0 8px 18px rgba(15, 27, 45, 0.18);
  transform: translateY(-1px);
}

.word-tile--insight:focus-visible {
  outline: 3px solid rgba(30, 58, 138, 0.45);
  outline-offset: 3px;
}

.word-tile--unanswered {
  background: #7f8ea3;
}

.word-tile--correct {
  background: var(--success);
}

.word-tile--wrong {
  background: var(--danger);
}

.word-tile__character {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.45rem;
  line-height: 1;
}

.word-tile__pinyin {
  font-size: 0.68rem;
  line-height: 1;
}

.level-actions {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--muted);
  font: 0.85rem "Space Grotesk", "Trebuchet MS", sans-serif;
}

.level-actions__divider {
  color: #9aa8bd;
  font-weight: 700;
  padding: 0 0.18rem 0 0.28rem;
}

.level-actions p {
  margin: 0;
}

.summary-pill {
  border-radius: 999px;
  padding: 0.38rem 0.7rem;
  color: #fff;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.summary-pill--correct {
  background: var(--success);
}

.summary-pill--wrong {
  background: var(--danger);
}

.wrong-summary {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.copy-wrong-button {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid rgba(180, 35, 45, 0.26);
  border-radius: 999px;
  background: #fff1f2;
  color: var(--danger);
}

.copy-wrong-button svg {
  width: 1.05rem;
  height: 1.05rem;
  fill: currentColor;
}

.copy-wrong-button:hover:not(:disabled) {
  background: #ffe1e5;
  box-shadow: 0 8px 18px rgba(180, 35, 45, 0.16);
}

.copy-wrong-button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
}

.copy-wrong-button--copied {
  border-color: rgba(21, 128, 61, 0.28);
  background: #e7f7ed;
  color: var(--success);
}

.level-button {
  min-width: 88px;
  padding: 0.55rem 1.2rem;
  border: none;
  border-radius: 0.5rem;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

.level-button--link {
  color: #fff;
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  text-align: center;
  text-decoration: none;
}

.level-button--link:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(40, 20, 5, 0.12);
}

.level-button:disabled {
  cursor: not-allowed;
  opacity: 0.66;
}

.level-button:disabled:hover {
  transform: none;
  box-shadow: none;
}

.character-insight-modal {
  width: min(620px, 100%);
  max-height: min(650px, 86vh);
  overflow: auto;
  padding: 0.95rem;
}

.character-insight-modal .modal__header {
  align-items: center;
}

.character-insight-modal h3 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 0.8rem;
}

.insight-section h4 {
  margin: 0 0 0.35rem;
  color: var(--brand);
  font-size: 0.98rem;
}

.insight-section p {
  margin: 0;
  color: var(--ink);
  line-height: 1.42;
}

.insight-section--tip {
  margin-top: 0.75rem;
  padding: 0.65rem 0.75rem;
  border-radius: 0.7rem;
  background: var(--surface-strong);
}

.insight-list {
  display: grid;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.insight-list li {
  display: grid;
  grid-template-columns: minmax(64px, 0.85fr) minmax(82px, 1fr);
  gap: 0.45rem 0.6rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 0.55rem;
  background: #fff;
}

.insight-cell {
  display: grid;
  gap: 0.08rem;
  min-width: 0;
}

.insight-cell small {
  color: #667085;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
}

.insight-cell--meaning {
  grid-column: 1 / -1;
  padding-top: 0.3rem;
  border-top: 1px solid rgba(207, 224, 255, 0.85);
}

.insight-cell strong {
  color: var(--ink);
  font-size: 0.96rem;
  line-height: 1.18;
}

.insight-cell span {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
  line-height: 1.18;
}

.insight-cell em {
  color: var(--muted);
  font-size: 0.86rem;
  font-style: normal;
  line-height: 1.25;
}

.insight-list--characters .insight-cell--hanzi strong {
  font-family: "Noto Serif SC", "Songti SC", serif;
  font-size: 1.35rem;
  line-height: 1.05;
}

.insight-list--characters li {
  grid-template-columns: minmax(54px, 0.55fr) minmax(78px, 1fr);
}

.insight-list .insight-empty {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
  font-style: italic;
}

@media (max-width: 820px) {
  .level-card {
    grid-template-columns: 1fr;
  }

  .level-actions {
    grid-column: 1;
    grid-row: 2;
    justify-content: start;
    flex-wrap: wrap;
  }

  .level-actions__divider {
    flex-basis: 100%;
    height: 0;
    overflow: hidden;
    padding: 0;
  }

  .word-tiles {
    grid-row: 3;
  }

  .insight-grid {
    grid-template-columns: 1fr;
  }
}