:root {
  color-scheme: light;
  --bg: #f5f7f2;
  --surface: #ffffff;
  --surface-soft: #eef4ec;
  --text: #17201b;
  --muted: #5b665f;
  --border: #d7ded5;
  --accent: #0f7a62;
  --accent-strong: #0a5f4d;
  --focus: #f0b429;
  --shadow: 0 18px 50px rgba(18, 31, 25, 0.13);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    linear-gradient(180deg, rgba(15, 122, 98, 0.08), rgba(245, 247, 242, 0) 35%),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1120px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
  min-width: 0;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(300px, 460px);
  gap: 20px;
  align-items: center;
  margin-bottom: 30px;
  min-width: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 800;
}

h1 {
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  line-height: 1.1;
  letter-spacing: 0;
}

.brand p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.search {
  position: relative;
  display: flex;
  align-items: center;
  min-width: 0;
}

.search-icon {
  position: absolute;
  left: 14px;
  color: var(--muted);
  font-size: 1.1rem;
  pointer-events: none;
}

.search input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 0 46px 0 42px;
  outline: none;
  box-shadow: 0 3px 12px rgba(18, 31, 25, 0.05);
}

.search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 122, 98, 0.18);
}

.clear-search {
  position: absolute;
  right: 8px;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 1.4rem;
  line-height: 1;
}

.clear-search:hover {
  background: var(--surface-soft);
  color: var(--text);
}

.display-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  padding: 12px;
  margin-bottom: 18px;
}

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

.display-panel h2 {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0;
}

.reset-button,
.collapse-button,
.order-button,
.settings-button,
.practice-button,
.editor-close,
.secondary-button,
.primary-button {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--accent-strong);
}

.display-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.reset-button {
  width: 34px;
  height: 34px;
  font-size: 1.1rem;
}

.collapse-button {
  width: 34px;
  height: 34px;
  font-size: 1.05rem;
  line-height: 1;
}

.collapse-button:hover,
.reset-button:hover {
  background: var(--surface-soft);
}

.field-controls[hidden] {
  display: none;
}

.settings-button {
  width: 38px;
  height: 38px;
  font-size: 1.15rem;
  line-height: 1;
  display: grid;
  place-items: center;
}

.card-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.practice-control {
  position: relative;
}

.practice-button {
  width: 38px;
  height: 38px;
  font-size: 1.05rem;
  line-height: 1;
  display: grid;
  place-items: center;
}

.practice-button.active {
  border-color: var(--accent);
  background: #e1f1ec;
}

.settings-button:hover,
.practice-button:hover,
.editor-close:hover,
.secondary-button:hover {
  background: var(--surface-soft);
}

.practice-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 12;
  width: 220px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 16px 38px rgba(18, 31, 25, 0.18);
  padding: 10px;
}

.practice-menu[hidden] {
  display: none;
}

.practice-options {
  display: grid;
  gap: 8px;
}

.practice-option {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 800;
}

.practice-option input {
  width: 17px;
  height: 17px;
  accent-color: var(--accent);
}

.practice-apply {
  width: 100%;
  margin-top: 10px;
}

.field-controls {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.field-control {
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 30px 30px;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 8px;
}

.field-control input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.field-control label {
  min-width: 0;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.order-button {
  width: 30px;
  height: 30px;
  font-weight: 800;
}

.order-button:disabled {
  cursor: default;
  color: #a7b1aa;
  background: #f6f8f6;
}

.stage {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 64px;
  gap: 18px;
  align-items: center;
  min-width: 0;
}

.nav-button {
  width: 64px;
  height: 64px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--accent-strong);
  font-size: 2rem;
  line-height: 1;
  box-shadow: 0 8px 20px rgba(18, 31, 25, 0.08);
}

.nav-button:hover {
  border-color: rgba(15, 122, 98, 0.45);
  background: #f9fcfa;
}

.autoplay-control {
  display: none;
}

.autoplay-button,
.autoplay-order {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--accent-strong);
}

.autoplay-button {
  width: 100%;
  height: 56px;
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 20px rgba(18, 31, 25, 0.08);
}

.autoplay-button.running {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.autoplay-button:hover,
.autoplay-order:hover {
  background: var(--surface-soft);
}

.autoplay-button.running:hover {
  background: var(--accent-strong);
}

.autoplay-menu {
  position: absolute;
  left: 50%;
  top: calc(100% + 8px);
  z-index: 10;
  width: min(260px, calc(100vw - 32px));
  transform: translateX(-50%);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 16px 38px rgba(18, 31, 25, 0.18);
  padding: 10px;
}

.autoplay-menu[hidden] {
  display: none;
}

.autoplay-options {
  display: grid;
  gap: 8px;
}

.autoplay-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 34px 34px;
  align-items: center;
  gap: 8px;
}

.autoplay-option input {
  width: 17px;
  height: 17px;
  accent-color: var(--accent);
}

.autoplay-option label {
  min-width: 0;
  font-size: 0.9rem;
  font-weight: 800;
}

.autoplay-order {
  width: 34px;
  height: 34px;
  font-weight: 900;
}

.autoplay-order:disabled {
  cursor: default;
  color: #a7b1aa;
  background: #f6f8f6;
}

.autoplay-start {
  width: 100%;
  margin-top: 10px;
}

.nav-button:focus-visible,
.result-item:focus-visible,
.clear-search:focus-visible,
.reset-button:focus-visible,
.collapse-button:focus-visible,
.order-button:focus-visible,
.settings-button:focus-visible,
.practice-button:focus-visible,
.autoplay-button:focus-visible,
.autoplay-order:focus-visible,
.editor-close:focus-visible,
.secondary-button:focus-visible,
.primary-button:focus-visible,
.audio-button:focus-visible,
.image-action:focus-visible,
.field-control input:focus-visible,
.editor-field input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.image-panel {
  margin: 0 0 18px;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: start;
}

.image-cell {
  display: grid;
  grid-template-rows: auto 36px;
  gap: 6px;
  min-width: 0;
}

.image-tile {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(15, 122, 98, 0.12), rgba(240, 180, 41, 0.13)),
    var(--surface);
  color: rgba(10, 95, 77, 0.55);
  text-decoration: none;
  box-shadow: 0 8px 22px rgba(18, 31, 25, 0.08);
}

.image-frame {
  width: 100%;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.image-frame a {
  min-height: 0;
  height: 100%;
  display: block;
  color: inherit;
  text-decoration: none;
}

.image-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.image-tile:hover {
  border-color: rgba(15, 122, 98, 0.45);
}

.image-tile.loading span {
  font-weight: 800;
}

.image-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  height: 36px;
}

.image-action {
  width: 100%;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 8px;
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 18px rgba(18, 31, 25, 0.24);
}

.image-action.accept {
  background: rgba(16, 128, 77, 0.94);
}

.image-action.reject {
  background: rgba(193, 50, 50, 0.94);
}

.image-action:hover {
  filter: brightness(1.06);
}

.vocab-card {
  min-width: 0;
  min-height: 520px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: clamp(20px, 4vw, 46px);
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.card-meta span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.word-block {
  display: grid;
  gap: 9px;
  min-width: 0;
}

.word-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.label {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.audio-button {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--accent-strong);
  font-size: 1.05rem;
  line-height: 1;
  display: grid;
  place-items: center;
}

.audio-button:hover,
.audio-button.playing {
  border-color: rgba(15, 122, 98, 0.55);
  background: #e1f1ec;
}

.practice-check {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: #10804d;
  color: #ffffff;
  font-weight: 900;
  display: grid;
  place-items: center;
}

.practice-check[hidden] {
  display: none;
}

.practice-answer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 38px;
  gap: 10px;
  align-items: center;
  max-width: min(100%, 680px);
}

.word-fields {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.field-value {
  margin: 0;
  overflow-wrap: anywhere;
  letter-spacing: 0;
}

.practice-input {
  width: 100%;
  min-width: 0;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  outline: none;
  padding: 10px 12px;
  letter-spacing: 0;
}

.practice-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 122, 98, 0.15);
}

.practice-input.correct {
  border-color: #10804d;
  background: #f3fbf7;
}

.practice-input.primary {
  color: var(--accent-strong);
  font-size: clamp(2rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1;
}

.practice-input.translation {
  font-size: clamp(1.35rem, 3.3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.08;
}

.practice-input.translation.secondary {
  color: #2d3a33;
}

.field-value.primary {
  color: var(--accent-strong);
  font-size: clamp(2.3rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1;
}

.field-value.translation {
  font-size: clamp(1.55rem, 3.8vw, 3rem);
  font-weight: 700;
  line-height: 1.08;
}

.field-value.translation.secondary {
  color: #2d3a33;
}

.field-value.syllables {
  color: #48554e;
  font-size: clamp(1.35rem, 3.4vw, 2.35rem);
  font-weight: 750;
  line-height: 1.12;
}

.divider {
  height: 1px;
  background: var(--border);
}

.results-panel {
  margin: 24px auto 0;
  max-width: 820px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 30px rgba(18, 31, 25, 0.09);
  overflow: hidden;
}

.results-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.results-list {
  max-height: 320px;
  overflow: auto;
}

.result-item {
  width: 100%;
  min-height: 54px;
  border: 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 10px 16px;
  text-align: left;
}

.result-item:hover,
.result-item.active {
  background: var(--surface-soft);
}

.result-id {
  color: var(--muted);
  font-size: 0.9rem;
}

.result-word {
  font-weight: 700;
  overflow-wrap: anywhere;
}

.result-translation {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.editor-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(23, 32, 27, 0.42);
}

.editor-overlay[hidden] {
  display: none;
}

.editor-dialog {
  width: min(680px, 100%);
  max-height: calc(100vh - 36px);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 18px;
}

.editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.editor-header h2 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: 0;
}

.editor-close {
  width: 36px;
  height: 36px;
  font-size: 1.35rem;
  line-height: 1;
}

.editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.editor-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.editor-id-field {
  max-width: 190px;
  margin-bottom: 12px;
}

.editor-field span {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.editor-field input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  padding: 0 12px;
  outline: none;
}

.editor-field input:focus {
  border-color: var(--accent);
}

.editor-status {
  min-height: 20px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.editor-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.secondary-button,
.primary-button {
  min-height: 42px;
  padding: 0 14px;
  font-weight: 800;
}

.primary-button {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.primary-button:hover {
  background: var(--accent-strong);
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 20px, 560px);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    padding-top: 12px;
    padding-bottom: 26px;
  }

  .topbar {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 12px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  h1 {
    font-size: 1.35rem;
  }

  .search input {
    min-height: 46px;
  }

  .display-panel {
    padding: 10px;
    margin-bottom: 12px;
  }

  .display-panel-header {
    margin-bottom: 8px;
  }

  .image-panel {
    margin-bottom: 12px;
  }

  .image-grid {
    gap: 8px;
  }

  .image-cell {
    grid-template-rows: auto 34px;
    gap: 5px;
  }

  .image-tile {
    aspect-ratio: 1 / 1;
  }

  .image-actions {
    height: 34px;
  }

  .image-action {
    height: 34px;
  }

  .field-controls {
    grid-template-columns: 1fr;
  }

  .field-control {
    display: flex;
    width: 100%;
    padding: 9px 10px;
  }

  .field-control label {
    flex: 1 1 auto;
  }

  .order-button {
    flex: 0 0 36px;
    width: 36px;
    height: 32px;
  }

  .stage {
    grid-template-columns: 1fr 64px 1fr;
    gap: 12px;
    width: 100%;
  }

  .vocab-card {
    grid-column: 1 / -1;
    grid-row: 1;
    min-height: 0;
    padding: 20px 20px 24px;
    gap: 18px;
  }

  .card-meta {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 6px;
  }

  .card-actions {
    grid-column: 2;
    grid-row: 1;
    align-self: start;
    display: flex;
    gap: 8px;
  }

  .practice-menu {
    right: 0;
    width: min(230px, calc(100vw - 36px));
  }

  .nav-button {
    width: 100%;
    height: 56px;
    grid-row: 2;
  }

  .autoplay-control {
    position: relative;
    display: block;
    grid-column: 2;
    grid-row: 2;
    width: 64px;
  }

  .autoplay-button {
    width: 64px;
  }

  .word-fields {
    gap: 16px;
  }

  .word-block {
    gap: 7px;
  }

  .field-value.primary {
    font-size: clamp(2.5rem, 12vw, 3.3rem);
  }

  .field-value.translation {
    font-size: clamp(1.65rem, 8vw, 2.25rem);
  }

  .field-value.syllables {
    font-size: clamp(1.35rem, 7vw, 1.85rem);
  }

  .result-item {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  .result-translation {
    grid-column: 2;
  }

  .editor-dialog {
    padding: 14px;
  }

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

  .editor-id-field {
    max-width: none;
  }

  .editor-actions {
    display: grid;
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .app-shell {
    width: min(100% - 16px, 390px);
    margin-left: auto;
    margin-right: auto;
  }

  .topbar,
  .display-panel,
  .image-panel,
  .stage,
  .results-panel {
    width: 100%;
  }

  .vocab-card {
    padding: 18px 16px 20px;
  }
}