*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

@font-face {
  font-family: 'Unifont';
  src: url('fonts/unifont.woff2') format('woff2');
  font-display: swap;
}

:root {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #86868b;
  --text-tertiary: #999999;
  --border: #d2d2d7;
  --border-light: #bbbbbb;
  --blue: #007aff;
  --blue-hover: #0066d6;
  --danger: #ff3b30;
  --danger-bg: rgba(255, 59, 48, 0.1);
  --input-bg: #fafafa;
  --input-focus-bg: #ffffff;
  --control-bg: #f0f0f0;
  --cmd-bg: #1d1d1f;
  --surface-alt: #e8e8ed;
  --hover-bg: rgba(0, 0, 0, 0.06);
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

[data-theme="dark"] {
  --bg: #1a2736;
  --surface: #1e2f42;
  --text: #e8eaed;
  --text-secondary: #8b9cb6;
  --text-tertiary: #6b7d96;
  --border: #2d4054;
  --border-light: #3d5570;
  --blue: #0a84ff;
  --blue-hover: #409cff;
  --input-bg: #1e2f42;
  --input-focus-bg: #253a50;
  --control-bg: #162030;
  --cmd-bg: #152030;
  --surface-alt: #2d4054;
  --hover-bg: rgba(255, 255, 255, 0.06);
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s, color 0.3s;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  opacity: 0.88;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
}

.header-left, .header-right {
  flex: 1;
  display: flex;
  align-items: center;
}

.header-right {
  justify-content: flex-end;
}

.logo-btn {
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  background: transparent;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 6px;
  transition: background 0.15s;
}

.logo-btn:hover {
  background: var(--hover-bg);
}

.header-inner h1 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-align: center;
}

/* Container */
.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Cards */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
}

.card-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

/* Card 2-column grid */
.card-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.card-grid-2 .card-label {
  margin-bottom: 12px;
}

.card-grid-2 .segmented {
  display: flex;
}

.card-grid-2 .segmented-item {
  flex: 1;
  text-align: center;
}

/* Reference Card */
.ref-section {
  margin-bottom: 16px;
}

.ref-section:last-child {
  margin-bottom: 0;
}

.ref-subtitle {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

#refColorGrid .color-swatch {
  cursor: pointer;
}

#refColorGrid .color-swatch:hover {
  transform: scale(1.08);
  z-index: 1;
}

.ref-format-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.code-tag {
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Consolas', monospace;
  font-size: 11px;
  opacity: 0.6;
}

/* Action Trigger Row */
.action-trigger-row {
  display: flex;
  gap: 10px;
}

.btn-action {
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
}

.btn-action:hover:not(:disabled) {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(0, 122, 255, 0.05);
}

.btn-action:disabled {
  opacity: 0.35;
  cursor: default;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--surface);
  border-radius: 14px;
  width: 480px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  transform: scale(0.95);
  transition: transform 0.2s;
}

.modal-overlay.open .modal {
  transform: scale(1);
}

.modal-wide {
  width: 640px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}

.modal-header h2 {
  font-size: 17px;
  font-weight: 600;
}

.modal-close {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--hover-bg);
}

.modal-body {
  padding: 16px 24px 24px;
}

.modal-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.5;
}

.modal-body textarea {
  width: 100%;
  min-height: 120px;
  padding: 10px 12px;
  font-size: 13px;
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Consolas', monospace;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  outline: none;
  resize: vertical;
  line-height: 1.6;
  background: var(--input-bg);
  color: var(--text);
}

.modal-body textarea:focus {
  border-color: var(--blue);
  background: var(--input-focus-bg);
}

.modal-error {
  margin-top: 10px;
  font-size: 13px;
  color: var(--danger);
  min-height: 20px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 0 24px 20px;
}

.modal-cancel {
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
}

.modal-cancel:hover {
  background: var(--hover-bg);
}

.modal-confirm {
  padding: 7px 20px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: none;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s;
}

.modal-confirm:hover {
  background: var(--blue-hover);
}

/* Add Component Modal */
.add-comp-row {
  margin-bottom: 14px;
}

.modal-field-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.add-comp-fields input,
.add-comp-fields textarea {
  width: 100%;
  padding: 8px 12px;
  font-size: 14px;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  background: var(--input-bg);
  color: var(--text);
  margin-bottom: 10px;
}

.add-comp-fields input:focus,
.add-comp-fields textarea:focus {
  border-color: var(--blue);
}

.add-comp-fields textarea {
  min-height: 80px;
  resize: vertical;
  line-height: 1.5;
}

.add-comp-fields .comp-field-group {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.add-comp-fields .field {
  flex: 1;
}

.add-comp-fields .field label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.add-comp-fields .field input {
  width: 100%;
  margin-bottom: 0;
}

/* Add Component Type Slider */
.add-comp-type-group {
  display: flex;
  gap: 2px;
  background: var(--control-bg);
  border-radius: 8px;
  padding: 2px;
  position: relative;
}

.add-comp-type-btn {
  flex: 1;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: none;
  border-radius: 7px;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
  text-align: center;
}

.add-comp-type-btn.active {
  color: var(--text);
}

.add-comp-type-btn:hover:not(.active) {
  color: var(--text);
}

/* Translate WITH Params */
.with-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.with-type-seg {
  display: inline-flex;
  gap: 2px;
  background: var(--control-bg);
  border-radius: 7px;
  padding: 2px;
  position: relative;
}

.with-type-btn {
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font);
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.with-type-btn.active {
  color: var(--text);
}

.with-param-add-chip {
  display: block;
  margin: 0 auto;
}

.with-param-inline-input {
  width: 100%;
  padding: 6px 36px 6px 10px;
  font-size: 14px;
  font-family: var(--font);
  border: 1.5px solid var(--border);
  border-radius: 6px;
  outline: none;
  transition: border-color 0.2s;
  background: var(--input-bg);
  color: var(--text);
}

.with-param-inline-input:focus {
  border-color: var(--blue);
  background: var(--input-focus-bg);
}

.with-params-area {
  margin-bottom: 10px;
}

.with-params-empty {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}

.with-param-item {
  position: relative;
  margin-bottom: 2px;
}

.with-param-remove {
  position: absolute;
  right: 4px;
  top: 6px;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.with-param-remove:hover {
  background: var(--danger-bg);
  color: var(--danger);
}

/* WITH component items (object mode) */
.with-component-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}

.with-component-item:hover {
  background: var(--hover-bg);
  border-color: var(--blue);
}

.with-comp-type {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--surface-alt);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Consolas', monospace;
  flex-shrink: 0;
}

.with-comp-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  color: var(--text-secondary);
}

.with-comp-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.with-comp-btn {
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.12s, color 0.12s;
  color: var(--text-tertiary);
}

.with-comp-btn:hover:not(:disabled) {
  background: var(--hover-bg);
  color: var(--text);
}

.with-comp-btn:disabled {
  opacity: 0.3;
  cursor: default;
}

.with-comp-btn:hover:last-child {
  background: var(--danger-bg);
  color: var(--danger);
}

/* Player */
.player-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.player-row input {
  width: 100%;
  padding: 10px 14px;
  font-size: 16px;
  font-family: var(--font);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s;
  background: var(--input-bg);
  color: var(--text);
}

.player-row input:focus {
  border-color: var(--blue);
  background: var(--input-focus-bg);
}

.quick-selectors {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  padding: 5px 14px;
  font-size: 13px;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--text-secondary);
}

.chip:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: rgba(0, 122, 255, 0.05);
}

/* Segmented Control */
.segmented {
  display: inline-flex;
  background: var(--control-bg);
  border-radius: 8px;
  padding: 2px;
  gap: 2px;
  position: relative;
}

.segmented-item {
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font);
  border: none;
  border-radius: 7px;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.segmented-item.active {
  color: var(--text);
}

.segmented-item:hover:not(.active) {
  color: var(--text);
}

.seg-indicator {
  position: absolute;
  top: 2px;
  bottom: 2px;
  background: var(--surface);
  border-radius: 7px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
  pointer-events: none;
}

/* Section Header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-header .card-label {
  margin-bottom: 0;
}

.section-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-danger {
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: 1px solid var(--danger);
  border-radius: 8px;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
  transition: all 0.15s;
}

.btn-danger:hover {
  background: var(--danger);
  color: #fff;
}

.btn-add {
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: none;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-add:hover {
  background: var(--blue-hover);
}

/* Component Cards */
.component-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}

.component-card:hover {
  background: var(--hover-bg);
  border-color: var(--blue);
}

.component-card:last-child {
  margin-bottom: 0;
}

.empty-state {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 36px 20px;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.comp-badge {
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Consolas', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--surface-alt);
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}

.comp-type-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  flex-shrink: 0;
}

.comp-text {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  color: var(--text-secondary);
}

.comp-right {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.comp-arrow {
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  color: var(--text-tertiary);
}

.comp-arrow:hover:not(:disabled) {
  background: var(--hover-bg);
  color: var(--text);
}

.comp-arrow:disabled {
  opacity: 0.3;
  cursor: default;
}

.comp-delete {
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  color: var(--text-tertiary);
}

.comp-delete:hover {
  background: var(--danger-bg);
  color: var(--danger);
}

.comp-add {
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
  color: var(--text-tertiary);
}

.comp-add:hover {
  background: var(--hover-bg);
  color: var(--blue);
}

.comp-field-group {
  display: flex;
  gap: 10px;
}

.comp-field-group .field {
  flex: 1;
}

/* Color Card Grid */
.color-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
}

.color-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.12s;
}

.color-card:hover {
  border-color: var(--blue);
  background: var(--input-focus-bg);
}

.color-card-swatch {
  width: 28px;
  height: 28px;
  border-radius: 5px;
  flex-shrink: 0;
  border: 2px solid transparent;
}

.color-card-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.color-card-code {
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Consolas', monospace;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
}

.color-card-name {
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Format Buttons */
.format-row {
  display: flex;
  gap: 6px;
}

.format-btn {
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  cursor: pointer;
  transition: all 0.12s;
  color: var(--text-secondary);
}

.format-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.format-btn.active {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

/* Command Preview */
.cmd-card {}

.cmd-header-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.cmd-label {
  margin-bottom: 0;
  flex-shrink: 0;
}

.cmd-toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-left: auto;
}

.cmd-tabs {
  display: flex;
  gap: 4px;
  background: var(--control-bg);
  border-radius: 7px;
  padding: 2px;
  position: relative;
}

.cmd-tab {
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font);
  border: none;
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.cmd-tab.active {
  color: var(--text);
}

.cmd-tab:hover:not(.active) {
  color: var(--text);
}

.cmd-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--cmd-bg);
  border-radius: 8px;
  padding: 12px 16px;
}

.cmd-box code {
  flex: 1;
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Consolas', monospace;
  font-size: 13px;
  color: #fff;
  line-height: 1.5;
  word-break: break-all;
  white-space: pre-wrap;
}

.btn-copy {
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  border: none;
  border-radius: 7px;
  background: var(--blue);
  cursor: pointer;
  color: #fff;
  transition: background 0.15s;
  flex-shrink: 0;
}

.btn-copy:hover {
  background: var(--blue-hover);
}

/* Visual Preview */
.visual-card {}

.visual-stage {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  border-radius: 10px;
  min-height: 200px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 20px 16px 56px;
}

.v-title {
  font-size: 36px;
  font-weight: 400;
  color: #fff;
  font-family: 'Unifont', monospace;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
  text-align: center;
  max-width: 90%;
  word-break: break-all;
}

.v-subtitle {
  font-size: 18px;
  font-weight: 400;
  color: #fff;
  font-family: 'Unifont', monospace;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
  text-align: center;
  max-width: 90%;
  word-break: break-all;
}

.v-actionbar {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 15px;
  font-weight: 400;
  color: #fff;
  font-family: 'Unifont', monospace;
  background: rgba(0, 0, 0, 0.5);
  padding: 6px 20px;
  border-radius: 6px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  max-width: 90%;
  word-break: break-all;
  text-align: left;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--cmd-bg);
  color: #fff;
  padding: 10px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  z-index: 400;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Responsive */
@media (max-width: 640px) {
  .header-inner { padding: 12px 16px; }
  .container { padding: 20px 16px 40px; gap: 16px; }
  .card { padding: 18px; }
  .card-grid-2 { grid-template-columns: 1fr; gap: 18px; }
  .segmented { width: 100%; }
  .segmented-item { flex: 1; text-align: center; padding: 8px 12px; font-size: 13px; }
  .color-card-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
  .v-title { font-size: 26px; }
  .v-subtitle { font-size: 15px; }
}

/* Theme Toggle */
.theme-toggle {
  margin-left: auto;
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  color: var(--text);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--hover-bg);
}

.theme-toggle.spin {
  animation: themeSpin 0.35s ease;
}

@keyframes themeSpin {
  0% { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(180deg) scale(0.8); }
  100% { transform: rotate(360deg) scale(1); }
}

/* Footer */
.footer {
  text-align: center;
  padding: 24px 20px;
  font-size: 13px;
  color: var(--text-tertiary);
}

/* (history-btn removed, using btn-action instead) */