:root {
  color-scheme: light;
  --bg: #f3f4f6;
  --panel: #ffffff;
  --border: #d8dee8;
  --text: #14171f;
  --muted: #687285;
  --accent: #ef6c00;
  --accent-dark: #c95700;
  --focus: #1d4ed8;
  --input: #f9fafb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 1180px;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 390px minmax(760px, 1fr);
  gap: 0;
  min-height: 100vh;
}

.control-panel {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  border-right: 1px solid var(--border);
  background: var(--panel);
}

.panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 20px 22px 16px;
  border-bottom: 1px solid var(--border);
}

.panel-header h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
}

.panel-header span {
  color: var(--muted);
  font-size: 13px;
}

.mode-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--border);
  background: #ffffff;
}

.mode-tab {
  min-height: 34px;
  font-size: 13px;
}

.mode-tab.is-active {
  border-color: var(--accent);
  background: #fff7ed;
  color: var(--accent-dark);
  font-weight: 700;
}

body.mode-use [data-debug-only] {
  display: none !important;
}

.panel-section {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
}

.section-title {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.section-subtitle {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.field-row,
.text-field-row {
  display: grid;
  gap: 7px;
  margin-bottom: 13px;
}

.field-row:last-child,
.text-field-row:last-child {
  margin-bottom: 0;
}

.field-row label,
.text-field-row label,
.coord-grid label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

select,
input[type="text"],
input[type="number"] {
  width: 100%;
  min-height: 36px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input);
  color: var(--text);
  padding: 7px 10px;
  outline: none;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--focus);
  background: #ffffff;
}

.hidden-select {
  display: none;
}

.template-picker {
  position: relative;
}

.template-picker-button {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 62px;
  padding: 7px 34px 7px 8px;
  text-align: left;
  background: var(--input);
  position: relative;
}

.template-picker-button::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: translateY(-65%) rotate(45deg);
}

.template-picker-button[aria-expanded="true"]::after {
  transform: translateY(-35%) rotate(225deg);
}

.template-picker-button img,
.template-picker-option img {
  display: block;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: #ffffff;
  object-fit: cover;
}

.template-picker-button img {
  width: 70px;
  height: 48px;
}

.template-picker-button span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 700;
}

.template-picker-menu {
  position: absolute;
  z-index: 30;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  display: none;
  max-height: 360px;
  overflow: auto;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #ffffff;
  box-shadow: 0 16px 32px rgba(20, 23, 31, 0.18);
}

.template-picker.is-open .template-picker-menu {
  display: grid;
  gap: 4px;
}

.template-picker-option {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 58px;
  padding: 6px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: #ffffff;
  text-align: left;
}

.template-picker-option:hover,
.template-picker-option.is-selected {
  border-color: #fed7aa;
  background: #fff7ed;
}

.template-picker-option img {
  width: 72px;
  height: 46px;
}

.template-picker-option strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}

.template-picker-option span {
  color: var(--muted);
  font-size: 12px;
}

.coord-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(58px, 1fr));
  gap: 8px;
}

.coord-grid input {
  margin-top: 6px;
  padding: 6px;
}

.template-meta-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.file-actions {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.file-control {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.file-control input {
  width: 100%;
  min-height: 36px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input);
  padding: 7px;
}

.check-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.check-line input {
  width: 16px;
  height: 16px;
}

.guide-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.guide-legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.guide-legend i {
  display: inline-block;
  width: 14px;
  height: 8px;
  border: 2px solid currentColor;
}

.guide-label {
  color: #006dff;
}

.guide-clip {
  color: #10a34a;
}

.guide-row {
  color: #a855f7;
}

.guide-selected-row {
  color: #f59e0b;
}

.guide-multi-row {
  color: #0ea5e9;
}

.guide-brand {
  color: #f10000;
}

.align-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 8px;
}

.align-grid button {
  min-height: 32px;
  padding-inline: 6px;
  font-size: 12px;
}

.actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: auto;
  padding: 16px 22px 22px;
  border-top: 1px solid var(--border);
}

button {
  min-height: 38px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
}

button:hover {
  border-color: #b9c2d2;
  background: #f8fafc;
}

#renderButton,
#downloadPngButton {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
}

#renderButton:hover,
#downloadPngButton:hover {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
}

.danger-button {
  border-color: #fca5a5;
  color: #b91c1c;
}

.danger-button:hover {
  border-color: #ef4444;
  background: #fef2f2;
}

.password-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: rgba(15, 23, 42, 0.42);
  padding: 20px;
}

.password-overlay[hidden] {
  display: none;
}

.password-dialog {
  width: min(360px, 100%);
  display: grid;
  gap: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.24);
  padding: 18px;
}

.password-error {
  min-height: 18px;
  color: #b91c1c;
  font-size: 13px;
  font-weight: 700;
}

.password-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.solidify-button {
  border-color: #86efac;
  color: #15803d;
}

.solidify-button:hover {
  border-color: #22c55e;
  background: #f0fdf4;
}

.preview-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 100vh;
  background: #e8ebf0;
}

.preview-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: #ffffff;
}

.preview-toolbar strong {
  display: block;
  font-size: 16px;
}

.preview-toolbar span {
  color: var(--muted);
  font-size: 13px;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

#copyConfigButton {
  min-width: 128px;
  padding-inline: 14px;
}

.canvas-wrap {
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 22px;
}

canvas {
  width: min(100%, 1448px);
  height: auto;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  box-shadow: 0 12px 32px rgba(20, 23, 31, 0.14);
  touch-action: none;
  user-select: none;
}

canvas.is-dragging {
  cursor: grabbing;
}