.vb-page {
  max-width: 600px;
  margin: 0 auto;
  padding: 16px 12px 48px;
  font-family: system-ui, sans-serif;
}

/* ── header ──────────────────────────────────────────────────────────────── */
.vb-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.vb-back {
  color: #1e3a8a;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
}
.vb-back:hover { text-decoration: underline; }

.vb-title {
  flex: 1;
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: #111827;
}

.vb-lang-select {
  padding: 5px 8px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: white;
  font-size: 13px;
  color: #374151;
  cursor: pointer;
}

/* ── search + controls ───────────────────────────────────────────────────── */
.vb-form {
  margin-bottom: 4px;
}

.vb-search-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.vb-controls-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.vb-search {
  flex: 1;
  min-width: 100px;
  height: 40px;
  padding: 0 12px;
  border: 1.5px solid #94a3b8;
  border-radius: 10px;
  font-size: 15px;
  background: white;
  color: #111827;
}
.vb-search:focus {
  outline: none;
  border-color: #4a90e2;
  box-shadow: 0 0 0 2px rgba(74,144,226,0.15);
}

.vb-search-submit {
  height: 40px;
  padding: 0 18px;
  border: none;
  border-radius: 10px;
  background: var(--button-primary-bg);
  color: var(--button-primary-text);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}

.vb-search-submit:hover {
  filter: brightness(1.05);
}

/* filter toggle */
.vb-filter-toggle {
  display: inline-flex;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  overflow: hidden;
  background: #f3f4f6;
}
.vb-ftbtn {
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: #6b7280;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.1s, color 0.1s;
}
.vb-ftbtn + .vb-ftbtn { border-left: 1px solid #e5e7eb; }
.vb-ftbtn.active      { background: #1e3a8a; color: white; }
.vb-ftbtn:not(.active):hover { background: #e5e7eb; }

/* feedback */
.vb-feedback-row {
  display: flex;
  justify-content: center;
  margin-bottom: 10px;
}

/* sort + count row */
.vb-sort-select {
  height: 30px;
  padding: 0 8px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: white;
  font-size: 13px;
  color: #374151;
  cursor: pointer;
}

.vb-count {
  flex: 1;
  font-size: 12px;
  color: #9ca3af;
  text-align: right;
}

/* ── grid ────────────────────────────────────────────────────────────────── */
.vb-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

@media (max-width: 400px) {
  .vb-list { grid-template-columns: repeat(2, 1fr); }
}

.vb-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  text-decoration: none;
  color: #111827;
  font-size: 15px;
  min-height: 44px;          /* comfortable tap target */
  transition: background 0.1s, border-color 0.1s;
}
.vb-item:hover    { background: #f0f4ff; border-color: #c7d7f9; }
.vb-item:active   { background: #e0eaff; }
.vb-item.is-known { background: #eff6ff; border-color: #bfdbfe; }
.vb-item.is-seen  { background: #f9fafb; }

.vb-lemma {
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.vb-badge        { font-size: 13px; flex-shrink: 0; margin-left: 4px; }
.vb-badge.known  { color: #4a90e2; }
.vb-badge.seen   { color: #9ca3af; }

.vb-legend {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: #6b7280;
  padding: 4px 0 10px;
}
.vb-legend .vb-badge {
  margin-left: 0;
  margin-right: 3px;
  font-size: 13px;
}

.vb-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: #9ca3af;
  padding: 32px 0;
  font-size: 15px;
}

.vb-section-label {
  grid-column: 1 / -1;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9ca3af;
  padding: 6px 2px 2px;
}

.vb-section-divider {
  grid-column: 1 / -1;
  height: 1px;
  background: #f3f4f6;
  margin: 6px 0;
}