:root {
  --bg: #f7f6fb;
  --panel: #ffffff;
  --panel-2: #fafafd;
  --border: rgba(20, 20, 30, 0.08);
  --border-strong: rgba(20, 20, 30, 0.18);
  --text: #1a1c2c;
  --text-muted: #6b6f80;
  --primary: #4d407a;
  --primary-hover: #3c3262;
  --accent: #fdae38;
  --danger: #dc2626;
  --success: #16a34a;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --panel: #181a21;
    --panel-2: #14161c;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.18);
    --text: #ecedf3;
    --text-muted: #9aa0b4;
    --primary: #8c79d4;
    --primary-hover: #a995e6;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.45;
}

button { font-family: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.topbar__brand {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.topbar__brand strong {
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--primary);
}
.topbar__brand-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.topbar__actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--panel);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease, transform 0.1s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--panel-2); }
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn--primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}
.btn--ghost {
  background: transparent;
  border-color: var(--border);
}
.btn--icon {
  padding: 0.4rem 0.55rem;
  font-size: 0.8rem;
}
.btn--danger {
  color: var(--danger);
  border-color: rgba(220, 38, 38, 0.4);
  background: transparent;
}
.btn--danger:hover {
  background: rgba(220, 38, 38, 0.08);
}

.layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 1rem 1.25rem 3rem;
  max-width: 1600px;
  margin: 0 auto;
}

@media (min-width: 1100px) {
  .layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(360px, 1fr);
    gap: 1.25rem;
  }
}

.builder {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  min-width: 0;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow-sm);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.85rem;
}
.field__label {
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.field input[type="text"],
.field input[type="number"],
.field input[type="url"],
.field select,
.field textarea {
  width: 100%;
  padding: 0.5rem 0.65rem;
  font: inherit;
  font-size: 0.9rem;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(77, 64, 122, 0.18);
}
.field textarea {
  resize: vertical;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.5;
}

.field__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}
@media (max-width: 700px) {
  .field__row { grid-template-columns: 1fr; }
}

.checkbox-line {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text);
  user-select: none;
}
.checkbox-line input { accent-color: var(--primary); }

.field-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.field-card__head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}
.field-card__type {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--primary);
  background: rgba(77, 64, 122, 0.1);
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
}
.field-card__id {
  flex: 1;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}
.field-card__actions {
  display: inline-flex;
  gap: 0.25rem;
}
.field-card__body {
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.option-row {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.7rem 0.7rem;
  background: var(--panel-2);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.option-row__head {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.option-row__num {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  min-width: 1.2rem;
}

.option-row__reveal {
  margin-top: 0.2rem;
  padding: 0.55rem 0.6rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--panel);
  display: none;
  flex-direction: column;
  gap: 0.4rem;
}
.option-row__reveal.is-active {
  display: flex;
}
.option-row__reveal-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.right-panel {
  position: sticky;
  top: 70px;
  align-self: start;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem 0.6rem 0.6rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 60vh;
  max-height: calc(100vh - 90px);
}

.tabs {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.tab {
  background: transparent;
  border: none;
  padding: 0.55rem 1rem;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.12s ease, color 0.12s ease;
}
.tab:hover {
  color: var(--text);
  background: var(--panel-2);
}
.tab.is-active {
  color: var(--primary);
  background: rgba(77, 64, 122, 0.1);
}

.tabs__hint {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-right: 0.4rem;
  min-height: 1.1rem;
}
.tabs__hint.is-success { color: var(--success); }
.tabs__hint.is-error { color: var(--danger); }

.tab-panel {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.tab-panel[hidden] { display: none; }

.preview-frame {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 0.5rem;
}

.preview-frame__inner {
  /* Reset any inherited dark mode for preview area so theme CSS shines */
  color: #2c2d2e;
  background: transparent;
}

/* Force light surfaces inside preview even if dark mode is on */
.preview-frame {
  background: #fff !important;
  color: #2c2d2e;
}

.preview-frame__inner :where(.ocf, .ocf *) {
  color: inherit;
}

.output {
  flex: 1;
  margin: 0;
  padding: 0.85rem;
  background: #0e1018;
  color: #e6e6f0;
  border-radius: var(--radius-sm);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.55;
  overflow: auto;
  white-space: pre;
  border: 1px solid #1d2030;
  user-select: text;
}

.add-field-wrap {
  display: flex;
  gap: 0.6rem;
  align-items: end;
}
.add-field-wrap .field { flex: 1; }

.empty-state {
  padding: 1.5rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.import-dialog {
  border: none;
  border-radius: var(--radius);
  padding: 1.25rem;
  width: min(640px, 92vw);
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
}
.import-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(2px);
}
.import-dialog h3 { margin: 0 0 0.6rem; }
.import-dialog textarea {
  width: 100%;
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 0.6rem;
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text);
  resize: vertical;
}
.import-dialog__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.tag-info {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}
.tag-info code {
  font-family: var(--mono);
  background: var(--panel-2);
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
}

/* Addon prices panel */
.addon-panel {
  padding: 0;
  overflow: hidden;
}
.addon-panel__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.85rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 0.92rem;
  user-select: none;
}
.addon-panel__summary::-webkit-details-marker { display: none; }
.addon-panel__summary::before {
  content: '▸';
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: transform 0.15s ease;
}
.addon-panel[open] .addon-panel__summary::before { transform: rotate(90deg); }
.addon-panel__count {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--panel-2);
  padding: 0.18rem 0.5rem;
  border-radius: 999px;
  margin-left: auto;
}
.addon-panel__body {
  padding: 0 1.1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.addon-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.addon-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.addon-row__id {
  flex: 1.2;
  min-width: 0;
  font-family: var(--mono);
}
.addon-row__amount {
  width: 80px;
  text-align: right;
}
.addon-row__sep {
  color: var(--text-muted);
  font-size: 0.85rem;
}
.addon-row__currency {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Image picker */
.image-picker {
  display: flex;
  gap: 0.6rem;
  align-items: stretch;
}
.image-picker__thumb {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--panel-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  color: var(--text-muted);
}
.image-picker__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.image-picker__right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
}
.image-picker__actions {
  display: flex;
  gap: 0.35rem;
}

.btn--small {
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
}

/* Price select */
.price-select-wrap {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.price-select-wrap select {
  flex: 1;
}