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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #f0f2f5;
  color: #333;
  min-height: 100vh;
}

header {
  background: #1a1a2e;
  color: #fff;
  padding: 0.8rem 2rem;
}

header h1 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 1rem;
}

/* ── Split View ── */
.split-view {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 1rem;
  height: calc(100vh - 60px - 2rem);
  min-height: 500px;
}

/* ── Panel Headers ── */
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.4rem;
  padding: 0 0.2rem;
}

/* ── Editor Panel ── */
.editor-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.editor-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.load-btn {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  background: #1a1a2e;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 500;
  transition: background 0.2s;
  text-transform: none;
  letter-spacing: 0;
}

.load-btn:hover {
  background: #2a2a4e;
}

.clear-btn {
  background: transparent;
  color: #888;
  border: 1px solid #ccc !important;
}

.clear-btn:hover {
  background: #e8eaef;
  color: #555;
}

#photo-input {
  display: none;
}

.photo-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid #555;
}

/* ── Editor Mode Toggle ── */
.editor-mode-toggle {
  display: flex;
  background: #e8eaef;
  border-radius: 6px;
  padding: 2px;
  gap: 1px;
}

.mode-btn {
  padding: 0.2rem 0.7rem;
  border: none;
  border-radius: 4px;
  background: transparent;
  font-size: 0.68rem;
  font-weight: 600;
  color: #888;
  cursor: pointer;
  transition: all 0.15s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.mode-btn:hover {
  color: #555;
}

.mode-btn.active {
  background: #fff;
  color: #333;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

/* ── Form Editor ── */
.form-editor {
  flex: 1;
  padding: 1rem 1.2rem;
  border: 1px solid #2a2a3e;
  border-radius: 10px;
  background: #1e1e2e;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.form-group label {
  font-size: 0.68rem;
  font-weight: 600;
  color: #7f849c;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input {
  padding: 0.5rem 0.7rem;
  border: 1px solid #313244;
  border-radius: 6px;
  background: #181825;
  color: #cdd6f4;
  font-size: 0.82rem;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  outline: none;
  transition: border-color 0.15s;
}

.form-group input:focus {
  border-color: #45475a;
}

.form-group input::placeholder {
  color: #585b70;
}

/* ── YAML Editor Wrap ── */
.yaml-editor-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

#yaml-editor {
  flex: 1;
  padding: 1rem 1.2rem;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Menlo, monospace;
  font-size: 0.82rem;
  line-height: 1.65;
  border: 1px solid #2a2a3e;
  border-radius: 10px;
  background: #1e1e2e;
  color: #cdd6f4;
  resize: none;
  outline: none;
  tab-size: 2;
}

#yaml-editor:focus {
  border-color: #45475a;
}

#yaml-editor::placeholder {
  color: #585b70;
}

.yaml-status {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
}

.yaml-status.valid {
  color: #40a02b;
}

.yaml-status.error {
  color: #d20f39;
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Preview Panel ── */
.preview-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ── Template Selector ── */
.template-grid {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.template-option {
  flex: 1;
  border: 2px solid transparent;
  border-radius: 8px;
  padding: 0.35rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
  background: #fff;
}

.template-option:hover {
  border-color: #ccc;
}

.template-option.active {
  border-color: #1a1a2e;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(26, 26, 46, 0.15);
}

.template-option .thumb {
  width: 100%;
  aspect-ratio: 7/4;
  border-radius: 4px;
  margin-bottom: 0.25rem;
}

.template-option .label {
  font-size: 0.6rem;
  font-weight: 600;
  color: #999;
  letter-spacing: 0.2px;
}

.template-option.active .label {
  color: #333;
}

/* ── Card Preview ── */
.preview-area {
  flex: 1;
  background: #e8eaef;
  border-radius: 10px;
  padding: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 0;
}

.preview-area svg {
  max-width: 100%;
  max-height: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
}

.preview-placeholder {
  color: #aaa;
  font-size: 0.85rem;
  text-align: center;
}

/* ── Preview Footer: colors + photo + export ── */
.preview-footer {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.6rem;
  padding: 0 0.2rem;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.color-controls {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  position: relative;
}

/* ── Palette Trigger ── */
.palette-trigger {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.6rem 0.25rem 0.3rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 500;
  color: #555;
  transition: border-color 0.15s, box-shadow 0.15s;
  position: relative;
}

.palette-trigger:hover {
  border-color: #999;
}

.palette-trigger-swatch {
  display: block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid #ddd;
  flex-shrink: 0;
}

.palette-trigger-label {
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.palette-trigger-arrow {
  flex-shrink: 0;
  color: #999;
  transition: transform 0.15s;
}

/* ── Palette Popup ── */
.palette-popup {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: 0;
  z-index: 100;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  padding: 0.5rem;
  width: 280px;
  max-height: 320px;
  overflow-y: auto;
}

.palette-popup.open {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px;
}

.palette-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.5rem;
  border: 1.5px solid transparent;
  border-radius: 6px;
  background: none;
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s;
  font-size: 0;
}

.palette-item:hover {
  background: #e8eaef;
  border-color: #aaa;
}

.palette-item.active {
  border-color: #333;
  background: #f5f5f5;
}

.palette-item-swatch {
  display: block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid #ddd;
  flex-shrink: 0;
}

.palette-item-name {
  font-size: 0.65rem;
  font-weight: 500;
  color: #555;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.color-custom {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  padding-left: 0.5rem;
  border-left: 1px solid #ddd;
}

.color-picker-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
}

.color-picker-wrap::before {
  content: '';
  display: block;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--picker-color);
  border: 2px solid #ccc;
  transition: border-color 0.15s, transform 0.15s;
}

.color-picker-wrap:hover::before {
  border-color: #888;
  transform: scale(1.1);
}

.color-picker-wrap input[type="color"] {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 26px;
  opacity: 0;
  cursor: pointer;
}

.color-picker-wrap span {
  font-size: 0.55rem;
  font-weight: 600;
  color: #aaa;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.export-buttons {
  display: flex;
  gap: 0.4rem;
}

.export-buttons button {
  padding: 0.35rem 1.2rem;
  border: none;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-svg {
  background: #1a1a2e;
  color: #fff;
}

.btn-svg:hover {
  background: #2a2a4e;
}

.btn-png {
  background: #0f3460;
  color: #fff;
}

.btn-png:hover {
  background: #1a4a7a;
}

button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ── Photo Controls ── */
.photo-controls {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.photo-control-group {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.photo-control-group label {
  font-size: 0.72rem;
  font-weight: 500;
  color: #888;
}

.photo-control-group input[type="range"] {
  width: 70px;
  cursor: pointer;
}

.photo-control-group span {
  font-size: 0.68rem;
  color: #999;
  min-width: 2.2em;
}

/* ── Photo Shape Selector ── */
.photo-shape-group {
  display: flex;
  align-items: center;
  background: #e8eaef;
  border-radius: 6px;
  padding: 2px;
  gap: 1px;
}

.shape-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: #888;
  cursor: pointer;
  padding: 0;
  transition: all 0.15s ease;
}

.shape-btn:hover {
  color: #555;
}

.shape-btn.active {
  background: #fff;
  color: #333;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.photo-reset-btn {
  padding: 0.25rem 0.7rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  background: #fff;
  font-size: 0.7rem;
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: background 0.15s;
}

.photo-reset-btn:hover {
  background: #f0f0f0;
}

/* ── Responsive ── */
@media (max-width: 860px) {
  .split-view {
    grid-template-columns: 1fr;
    height: auto;
  }

  #yaml-editor {
    min-height: 220px;
  }

  .form-editor {
    min-height: 220px;
  }

  .preview-area {
    min-height: 280px;
  }

  .preview-footer {
    gap: 0.5rem;
  }

  .footer-row {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .photo-controls {
    justify-content: center;
  }

  .export-buttons {
    justify-content: stretch;
  }

  .export-buttons button {
    flex: 1;
  }
}