.vocab-shell {
  max-width: 1480px;
}

.vocab-header {
  grid-template-columns: minmax(13rem, 18rem) minmax(0, 1fr) minmax(16rem, 23rem);
}

.vocab-header h1 {
  max-width: 13ch;
}

.vocab-page-board {
  display: grid;
  grid-template-columns: 19rem minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}

.word-rail,
.vocab-study {
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
}

.word-rail {
  position: sticky;
  top: 1rem;
  align-self: start;
  display: grid;
  gap: 0.9rem;
  max-height: calc(100vh - 2rem);
  padding: 1rem;
  overflow: auto;
}

.word-search {
  display: grid;
  gap: 0.4rem;
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-weight: 900;
}

.word-search span {
  color: var(--muted);
  font-size: 0.78rem;
}

.word-search input {
  min-height: 2.65rem;
  width: 100%;
  padding: 0 0.7rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-weight: 850;
}

.word-list {
  display: grid;
  gap: 0.5rem;
}

.word-list button {
  min-width: 0;
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.55rem;
  align-items: center;
  padding: 0.55rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  cursor: pointer;
  text-align: left;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.word-list button:hover {
  transform: translateY(-0.08rem);
  box-shadow: 0.18rem 0.18rem 0 var(--ink);
}

.word-list button.is-active {
  background: var(--mint);
  box-shadow: 0.2rem 0.2rem 0 var(--ink);
}

.word-list button.is-known .word-list-number {
  background: var(--gold);
}

.word-list-number {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
  font-size: 0.75rem;
  font-weight: 950;
}

.word-list-copy {
  min-width: 0;
  display: grid;
  gap: 0.08rem;
}

.word-list-copy strong,
.word-list-copy small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.word-list-copy strong {
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-weight: 950;
}

.word-list-copy small {
  color: var(--muted);
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-size: 0.76rem;
  font-weight: 850;
}

.word-list-empty {
  margin: 0;
  padding: 0.8rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--muted);
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-weight: 850;
  line-height: 1.45;
}

.vocab-study {
  min-width: 0;
  display: grid;
  gap: 1rem;
  padding: 1rem;
}

.vocab-study-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: end;
}

.vocab-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  justify-content: end;
}

.vocab-actions a {
  color: inherit;
  text-decoration: none;
}

.word-heading-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 0.45rem;
}

.vocab-study .word-card {
  grid-template-areas:
    "meta meta"
    "visual title"
    "visual meaning"
    "visual audio"
    "visual hook"
    "example info"
    "examples examples"
    "exam exam"
    "strip strip";
  grid-template-columns: minmax(18rem, 0.9fr) minmax(0, 1.1fr);
  gap: 1rem;
  padding: 1rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.vocab-study #word-text {
  font-size: clamp(2.8rem, 7vw, 6rem);
}

.vocab-study .word-visual {
  background: var(--surface);
}

.word-memory-stack {
  display: grid;
  gap: 0.7rem;
  padding: 0.65rem;
}

.word-generated-memory {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.word-generated-memory img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.word-generated-memory figcaption,
.word-visual-label {
  position: absolute;
  left: 0.65rem;
  top: 0.65rem;
  width: fit-content;
  max-width: calc(100% - 1.3rem);
  padding: 0.22rem 0.5rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-size: 0.72rem;
  font-weight: 950;
}

.word-svg-panel {
  position: relative;
  display: grid;
  gap: 0.45rem;
  overflow: hidden;
  padding: 0.55rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.word-svg-panel .word-svg {
  aspect-ratio: 1.73 / 1;
}

.word-svg-panel .word-visual-label {
  position: static;
  max-width: 100%;
  background: var(--mint);
}

.vocab-audio-panel {
  grid-area: audio;
  display: grid;
  gap: 0.65rem;
}

.word-exam {
  grid-area: exam;
  display: grid;
  gap: 0.75rem;
  padding: 0.85rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

body.has-modal {
  overflow: hidden;
}

.word-chip-list button {
  padding: 0.28rem 0.48rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  cursor: pointer;
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-size: 0.8rem;
  font-weight: 900;
  line-height: 1.2;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.word-chip-list button:hover,
.word-chip-list button:focus-visible {
  background: var(--mint-soft);
  transform: translateY(-0.06rem);
  box-shadow: 0.14rem 0.14rem 0 var(--ink);
}

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

.variant-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(32, 35, 31, 0.46);
}

.variant-modal-panel {
  width: min(100%, 42rem);
  display: grid;
  gap: 0.85rem;
  padding: 1rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0.35rem 0.35rem 0 var(--ink);
}

.variant-modal-head {
  display: flex;
  gap: 0.75rem;
  align-items: start;
  justify-content: space-between;
}

.variant-modal-head h2 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  line-height: 0.95;
  overflow-wrap: anywhere;
}

.variant-modal-head .round-action {
  flex: 0 0 auto;
  width: 2.4rem;
  height: 2.4rem;
  font-size: 1.15rem;
  font-weight: 950;
}

.variant-relation {
  width: fit-content;
  max-width: 100%;
  padding: 0.25rem 0.5rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: var(--gold);
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-size: 0.78rem;
  font-weight: 950;
}

.variant-explain {
  margin: 0;
  padding: 0.75rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-weight: 850;
  line-height: 1.55;
}

.variant-example {
  display: grid;
  gap: 0.45rem;
  padding: 0.75rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--mint-soft);
}

.variant-example span,
.variant-example strong,
.variant-example small {
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
}

.variant-example span {
  width: fit-content;
  padding: 0.2rem 0.45rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.75rem;
  font-weight: 950;
}

.variant-example strong {
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 950;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.variant-example small {
  color: var(--muted);
  font-weight: 850;
  line-height: 1.4;
}

.vocab-audio-row {
  background: var(--surface);
}

#vocab-audio-player {
  width: 100%;
  margin-top: 0.65rem;
}

#vocab-audio-player:not([src]) {
  display: none;
}

#vocab-audio-status.is-ready {
  color: var(--ink);
  font-weight: 850;
}

#vocab-audio-status.is-error {
  color: var(--danger);
  font-weight: 850;
}

.vocab-voice-switch {
  align-items: stretch;
}

.vocab-voice-switch button {
  flex: 1 1 12rem;
}

.vocab-study .word-example p {
  font-size: clamp(1.1rem, 2.4vw, 1.75rem);
}

.target-word-highlight {
  display: inline;
  padding: 0 0.08em;
  border-radius: 0.18em;
  background: rgba(243, 198, 75, 0.26);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  color: var(--danger);
  font-weight: 950;
  box-shadow: inset 0 -0.18em 0 rgba(243, 198, 75, 0.78);
}

.example-bank {
  grid-area: examples;
  display: grid;
  gap: 0.8rem;
  padding: 0.85rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.example-bank-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  justify-content: space-between;
}

.example-bank-head h4 {
  margin: 0;
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-size: 1rem;
  font-weight: 950;
}

.example-tabs,
.example-stack {
  display: grid;
  gap: 0.55rem;
}

.example-tabs {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.example-tabs button,
.example-stack button {
  min-width: 0;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  cursor: pointer;
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-weight: 900;
  text-align: left;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.example-tabs button {
  min-height: 2.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.7rem;
  text-align: center;
}

.example-tabs button:hover,
.example-stack button:hover {
  transform: translateY(-0.08rem);
  box-shadow: 0.16rem 0.16rem 0 var(--ink);
}

.example-tabs button.is-active,
.example-stack button.is-active {
  background: var(--mint);
  box-shadow: 0.18rem 0.18rem 0 var(--ink);
}

.example-focus {
  display: grid;
  gap: 0.45rem;
  padding: 0.8rem;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.example-focus span {
  width: fit-content;
  max-width: 100%;
  padding: 0.24rem 0.48rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: var(--gold);
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-size: 0.78rem;
  font-weight: 950;
}

.example-focus p {
  margin: 0;
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-size: clamp(1.35rem, 3vw, 2.35rem);
  font-weight: 950;
  line-height: 1.08;
}

.example-focus small,
.example-focus em,
.example-stack small {
  color: var(--muted);
  font-family: ui-sans-serif, "Avenir Next", "PingFang SC", sans-serif;
  font-weight: 850;
  line-height: 1.35;
}

.example-focus em {
  font-style: normal;
}

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

.example-stack button {
  display: grid;
  gap: 0.3rem;
  align-content: start;
  min-height: 7.2rem;
  padding: 0.7rem;
}

.example-stack span {
  width: fit-content;
  max-width: 100%;
  padding: 0.2rem 0.42rem;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--coral);
  font-size: 0.72rem;
  font-weight: 950;
}

.example-stack strong {
  font-size: 0.95rem;
  line-height: 1.22;
}

@media (max-width: 1180px) {
  .vocab-header,
  .vocab-page-board {
    grid-template-columns: 1fr;
  }

  .vocab-study {
    order: 1;
  }

  .word-rail {
    order: 2;
    position: static;
    max-height: none;
  }

  .word-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .vocab-study-head,
  .vocab-study .word-card {
    grid-template-columns: 1fr;
  }

  .vocab-study .word-card {
    grid-template-areas:
      "meta"
      "title"
      "meaning"
      "audio"
      "visual"
      "hook"
      "example"
      "info"
      "examples"
      "exam"
      "strip";
  }

  .word-list,
  .example-tabs,
  .example-stack {
    grid-template-columns: 1fr;
  }

  .vocab-actions {
    justify-content: stretch;
  }

  .vocab-actions .secondary-command {
    flex: 1 1 100%;
  }

  .word-heading-actions {
    justify-content: stretch;
  }

  .word-heading-actions .favorite-toggle,
  .word-heading-actions .mark-word {
    flex: 1 1 7rem;
  }
}

@media (max-width: 520px) {
  .vocab-study {
    padding: 0.75rem;
  }

  .vocab-study .word-card {
    padding: 0.75rem;
  }
}