.converter-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  max-width: 500px;
  margin: 0 auto;
}

.category-tabs {
  display: flex;
  gap: 0.4rem;
}

.category-tab {
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--text);
  background: none;
  border: 1px solid var(--border);
  padding: 0.45rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.category-tab:hover {
  border-color: var(--accent);
  color: var(--accent);
}

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

.converter-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 100%;
}

.converter-row {
  display: flex;
  align-items: flex-end;
  gap: 1rem;
}

.input-group {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.input-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.input-group input,
.input-group select {
  width: 100%;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.input-group input:focus,
.input-group select:focus {
  border-color: var(--accent);
}

#to-value {
  color: var(--text-dim);
}

.swap-btn-wrapper {
  display: flex;
  align-items: center;
  padding-bottom: 0.15rem;
}

#swap-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--bg);
  color: var(--accent);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
}

#swap-btn:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

@media (max-width: 560px) {
  .converter-row {
    flex-direction: column;
    align-items: stretch;
  }

  .swap-btn-wrapper {
    justify-content: center;
    padding-bottom: 0;
  }
}

/* Prevent iOS auto-zoom on focus */
@supports (-webkit-touch-callout: none) {
  input, select, textarea { font-size: 16px !important; }
}