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

body {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ---- Main split ---- */
.main-split {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

/* ---- Form panel (left) ---- */
.form-panel {
  flex: 0 0 320px;
  min-width: 260px;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--sz-color-button-face);
}

.form-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px;
}

/* ---- Field groups ---- */
.field-group {
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  margin-bottom: 8px;
  padding: 8px;
}

.field-group legend {
  font-size: 11px;
  font-weight: bold;
  color: var(--sz-color-window-text);
  padding: 0 4px;
}

.field-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 5px;
}

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

.field-row label {
  width: 72px;
  font-size: 11px;
  color: var(--sz-color-window-text);
  flex-shrink: 0;
  text-align: right;
}

.field-row input[type="text"],
.field-row select {
  flex: 1;
  font-size: 11px;
}

.field-row input[type="text"]:focus,
.field-row select:focus {
  outline: 1px solid var(--sz-color-highlight);
}

/* ---- Color picker row ---- */
.color-picker-row {
  flex: 1;
  display: flex;
  gap: 4px;
  align-items: center;
}

.color-picker-row input[type="color"] {
  width: 28px;
  height: 22px;
  padding: 0;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  cursor: pointer;
}

.color-hex-input {
  width: 64px !important;
  flex: 0 0 64px !important;
  font-family: Consolas, monospace !important;
  font-size: 11px;
  text-transform: uppercase;
}

/* ---- Photo upload ---- */
.photo-upload-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.photo-preview {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px dashed var(--sz-color-button-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  background: var(--sz-color-window);
}

.photo-preview.frame-square { border-radius: 0; clip-path: none; }
.photo-preview.frame-circle { border-radius: 50%; clip-path: none; }
.photo-preview.frame-rounded { border-radius: 12%; clip-path: none; }
.photo-preview.frame-hexagon { border-radius: 0; clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%); }
.photo-preview.frame-hexagon-flat { border-radius: 0; clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%); }
.photo-preview.frame-diamond { border-radius: 0; clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%); }
.photo-preview.frame-octagon { border-radius: 0; clip-path: polygon(29% 0%, 71% 0%, 100% 29%, 100% 71%, 71% 100%, 29% 100%, 0% 71%, 0% 29%); }

.photo-preview.has-photo {
  border-style: solid;
  border-color: var(--sz-color-highlight);
}

.photo-preview.dragover {
  border-color: var(--sz-color-highlight);
  background: var(--sz-color-highlight);
  opacity: 0.7;
}

.photo-placeholder {
  font-size: 9px;
  color: var(--sz-color-gray-text);
  text-align: center;
  padding: 8px;
  line-height: 1.3;
}

.photo-preview.has-photo .photo-placeholder {
  display: none;
}

#photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.photo-preview.has-photo #photo-img {
  display: block;
}

.photo-buttons {
  display: flex;
  gap: 4px;
}

.photo-buttons button {
  font-size: 10px;
  padding: 2px 10px;
}

/* ---- Splitter ---- */
.splitter {
  width: 5px;
  cursor: col-resize;
  background: var(--sz-color-button-face);
  border-left: 1px solid var(--sz-color-button-shadow);
  border-right: 1px solid var(--sz-color-button-shadow);
  flex-shrink: 0;
}

.splitter:hover {
  background: var(--sz-color-button-light);
}

/* ---- Preview panel (right) ---- */
.preview-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 300px;
  overflow: hidden;
  background: var(--sz-color-window);
}

.preview-header {
  padding: 3px 8px;
  background: var(--sz-color-button-face);
  border-bottom: 1px solid var(--sz-color-button-shadow);
  font-size: 10px;
  font-weight: bold;
  color: var(--sz-color-button-text);
  user-select: none;
  flex-shrink: 0;
}

/* ---- Email mock ---- */
.email-mock {
  flex: 1;
  overflow: auto;
  display: flex;
  flex-direction: column;
  background: #f5f5f5;
}

.email-mock-header {
  padding: 10px 16px;
  background: #fff;
  border-bottom: 1px solid #ddd;
  font-size: 12px;
  font-family: -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
  color: #333;
  flex-shrink: 0;
}

.email-mock-row {
  margin-bottom: 3px;
}

.email-mock-row:last-child {
  margin-bottom: 0;
}

.email-mock-label {
  font-weight: bold;
  color: #666;
  display: inline-block;
  width: 55px;
}

.email-mock-body {
  flex: 1;
  padding: 20px 24px;
  background: #fff;
  font-family: -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 13px;
  color: #333;
  line-height: 1.5;
}

.email-mock-text {
  margin-bottom: 8px;
}

.email-mock-divider {
  border: none;
  border-top: 1px solid #e0e0e0;
  margin: 16px 0;
}

.signature-output {
  min-height: 60px;
}

/* ---- Copy tooltip ---- */
.copy-tooltip {
  position: fixed;
  background: var(--sz-color-window-text);
  color: var(--sz-color-window);
  padding: 3px 8px;
  font-size: 10px;
  border-radius: 3px;
  pointer-events: none;
  z-index: 3000;
  opacity: 0;
  transition: opacity 0.15s;
}

.copy-tooltip.visible {
  opacity: 1;
}