:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --border: #e1e4ec;
  --text: #1f2430;
  --text-muted: #5b6472;
  --accent: #4f5ee0;
  --accent-contrast: #ffffff;
  --highlight-bg: #fff6cf;
  --highlight-border: #eddc8f;
  --rule-bg: #eef1ff;
  --rule-border: #c9d0ff;
  --warn-bg: #fdeeee;
  --warn-border: #f3c6c6;
  --warn-text: #a52323;
  --note-bg: #f1f4f8;
  --content-max: 980px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

main {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  max-width: var(--content-max);
  margin: 0 auto;
}

.brand h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
}

.brand p {
  margin: 0.15rem 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

#verbName {
  color: var(--accent);
}

.topbar-actions {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.mini-select {
  display: flex;
  flex-direction: column;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  gap: 0.2rem;
}

.mini-select select {
  font: inherit;
  padding: 0.35rem 0.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  text-transform: none;
  font-size: 0.9rem;
}

.btn {
  font: inherit;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-contrast);
  cursor: pointer;
}

.btn:hover {
  filter: brightness(1.06);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
}

.phrase-panel {
  margin: 0.5rem 0 1.5rem;
}

.phrase-box {
  background: var(--highlight-bg);
  border: 1px solid var(--highlight-border);
  border-radius: 12px;
  padding: 1.1rem 1.4rem;
  font-size: 1.4rem;
  font-weight: 700;
  text-align: center;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: 1rem;
}

.group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1 1 auto;
  min-width: 0;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.35rem 0.4rem 0.4rem;
  background: var(--card);
  margin: 0;
}

.sub-group {
  background: #fbfbff;
}

.group[hidden] {
  display: none;
}

.group legend {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: 0 0.2rem;
  white-space: nowrap;
}

.toggle-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
}

.toggle {
  font: inherit;
  font-size: 0.8rem;
  padding: 0.24rem 0.42rem;
  border-radius: 7px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}

.toggle:hover {
  background: #f0f1f8;
}

.toggle.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
}

.toggle:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.listbuttons {
  display: flex;
  gap: 0.6rem;
  margin: 0.4rem 0 1rem;
}

.info-panels {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.panel {
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  font-size: 0.92rem;
  line-height: 1.4;
}

.panel-rule {
  background: var(--rule-bg);
  border: 1px solid var(--rule-border);
}

.panel-warning {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  color: var(--warn-text);
  font-weight: 600;
}

.panel-meaning {
  background: var(--note-bg);
}

.panel-label {
  font-weight: 700;
  margin-right: 0.4rem;
}

.panel-note {
  background: var(--note-bg);
  font-style: italic;
}

dialog {
  border: none;
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}

dialog::backdrop {
  background: rgba(20, 22, 30, 0.45);
}

dialog h2 {
  margin-top: 0;
}

dialog input[type="text"] {
  font: inherit;
  width: 100%;
  padding: 0.5rem 0.6rem;
  border-radius: 7px;
  border: 1px solid var(--border);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
  margin-top: 1.1rem;
}

.about-version {
  font-weight: 700;
  margin-bottom: 0;
}

.about-recreation {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.word-list {
  max-height: 50vh;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.25rem 0.5rem;
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
  margin: 0.4rem 0;
}

@media (min-width: 641px) {
  :root {
    --content-max: 1600px;
  }

  .group {
    flex: 0 0 auto;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
  }

  .group legend {
    padding: 0;
  }

  .toggle-row {
    flex-wrap: nowrap;
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}