/* UUID 생성기 전용 스타일 */

nav { max-width: 760px; }
main { max-width: 760px; }

.controls {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) minmax(120px, 1fr) auto;
  gap: 0.85rem 1rem;
  align-items: end;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 1rem;
}

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

.control-group > label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-sub);
}

.control-group select,
.control-group input[type="number"] {
  padding: 0.55rem 0.75rem;
  font-size: 0.9rem;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.control-group select:focus,
.control-group input[type="number"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.12);
}

.control-group.toggles {
  flex-direction: row;
  gap: 0.85rem;
  align-items: center;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}
.toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}

.actions {
  display: flex;
  gap: 0.55rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  padding: 0.6rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}
.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
}
.btn-secondary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.error {
  margin-bottom: 0.85rem;
  padding: 0.7rem 0.95rem;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  color: var(--error);
  font-size: 0.85rem;
}
.error[hidden] { display: none; }

.results {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.results[hidden] { display: none; }

.uuid-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.uuid-val {
  flex: 1;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88rem;
  color: var(--text);
  word-break: break-all;
  background: transparent;
  padding: 0;
}

.btn-copy-row {
  flex-shrink: 0;
  padding: 0.3rem 0.7rem;
  font-size: 0.75rem;
  background: var(--bg);
  color: var(--text-sub);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-copy-row:hover {
  border-color: var(--primary);
  color: var(--primary);
}

@media (max-width: 600px) {
  .controls {
    grid-template-columns: 1fr 1fr;
  }
  .control-group.toggles {
    grid-column: 1 / -1;
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .controls { grid-template-columns: 1fr; }
  .uuid-val { font-size: 0.78rem; }
  .actions .btn-primary,
  .actions .btn-secondary { flex: 1; min-height: 44px; }
}