.uuid-panel {
  max-width: 1180px;
  margin: 0 auto;
}

.uuid-card {
  display: grid;
  grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
  gap: 24px;
  padding: 28px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.uuid-controls,
.uuid-results {
  min-width: 0;
}

.uuid-controls {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.control-block,
.field,
.stats-grid .stat-card,
.uuid-results {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 74%, var(--surface));
}

.control-block,
.field,
.uuid-results {
  border-radius: 22px;
  padding: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.control-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.field--count {
  max-width: none;
  width: 100%;
}

.field--format {
  min-width: 0;
  width: 100%;
}

.field-label {
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
}

.field-hint {
  margin: 0;
  font-size: 0.84rem;
  color: var(--muted);
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  width: fit-content;
  max-width: 100%;
}

.choice-chip {
  min-width: 120px;
  justify-content: center;
  font-weight: 700;
  color: var(--text);
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.choice-chip:hover {
  transform: translateY(-1px);
}

.choice-chip.is-active {
  background: color-mix(in srgb, var(--surface) 84%, var(--primary));
  border-color: color-mix(in srgb, var(--primary) 42%, var(--border));
  color: var(--text);
  box-shadow: 0 10px 24px rgba(var(--primary-rgb), 0.18);
}

.field input,
.field select {
  width: 100%;
  min-height: 46px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 0 14px;
  font: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.12);
}

.uuid-select-wrap {
  position: relative;
  width: 100%;
}

.uuid-select-wrap select {
  width: 100%;
}

.uuid-select-wrap .select-selected {
  width: 100%;
  min-height: 52px;
  display: flex;
  align-items: center;
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  padding: 12px 42px 12px 14px;
  font: inherit;
  font-weight: 500;
  white-space: normal;
  line-height: 1.4;
}

.uuid-select-wrap .select-selected:hover {
  background: var(--surface);
  border-color: var(--primary);
}

.uuid-select-wrap .select-selected.select-arrow-active {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.12);
}

.uuid-select-wrap .select-items {
  margin-top: 6px;
  border-radius: 14px;
}

.uuid-select-wrap .select-items div {
  background: var(--surface);
  white-space: normal;
  line-height: 1.4;
}

.uuid-select-wrap .select-items div:hover,
.uuid-select-wrap .same-as-selected {
  background: var(--surface-2);
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.action-row button {
  flex: 1 1 0;
  min-width: 140px;
}

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

.stats-grid .stat-card {
  padding: 16px;
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 102px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-value {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
  word-break: break-word;
}

.uuid-results {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 100%;
}

.result-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.result-title {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
}

.result-hint {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.result-status {
  flex-shrink: 0;
  border-radius: 999px;
  padding: 8px 12px;
  background: color-mix(in srgb, var(--primary) 14%, var(--surface));
  color: var(--primary);
  font-weight: 800;
  font-size: 0.82rem;
  border: 1px solid color-mix(in srgb, var(--primary) 22%, var(--border));
}

.empty-state-box {
  min-height: 320px;
  border: 1px dashed var(--border);
  border-radius: 22px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface) 88%, transparent), color-mix(in srgb, var(--surface-2) 70%, transparent));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
  padding: 28px;
  color: var(--muted);
}

.empty-state-box i {
  font-size: 2.4rem;
  color: var(--primary);
}

.empty-state-box p,
.empty-state-box span {
  margin: 0;
}

.empty-state-box[hidden],
.uuid-list[hidden] {
  display: none !important;
}

.uuid-list {
  display: grid;
  gap: 10px;
}

.uuid-item {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 88%, var(--surface-2));
  cursor: pointer;
  text-align: left;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.uuid-item:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border));
  box-shadow: 0 12px 24px rgba(var(--primary-rgb), 0.1);
}

.uuid-index {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--primary) 14%, transparent);
  color: var(--primary);
  font-weight: 800;
  font-size: 0.82rem;
}

.uuid-value {
  min-width: 0;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text);
  word-break: break-all;
}

.uuid-copy {
  color: var(--muted);
  font-size: 1rem;
}

html[data-theme="light"] .control-block,
html[data-theme="light"] .field,
html[data-theme="light"] .uuid-results,
html[data-theme="light"] .stats-grid .stat-card,
html[data-theme="light"] .uuid-item {
  box-shadow: 0 10px 20px rgba(22, 30, 53, 0.04);
}

@media (max-width: 980px) {
  .uuid-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .uuid-card {
    padding: 18px;
    border-radius: 24px;
  }

  .control-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .action-row button {
    min-width: 0;
  }

  .uuid-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .uuid-index {
    width: auto;
    height: auto;
    border-radius: 999px;
    padding: 6px 10px;
  }
}