/* ─── SVG Preview Page ──────────────────────────────────────── */

.preview-section {
  padding: 32px 0 60px;
  min-height: calc(100vh - 64px - 72px);
}

.preview-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  height: calc(100vh - 200px);
  min-height: 480px;
}

/* ─── Panel shared ─────────────────────────────────────────── */
.preview-panel {
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--bg);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.panel-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}

.panel-title svg {
  color: var(--text-muted);
}

.panel-body {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.panel-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

/* ─── Code Editor Panel ────────────────────────────────────── */
.editor-panel .panel-body {
  background: #1e1b2e;
}

.code-area {
  display: flex;
  width: 100%;
  height: 100%;
}

.line-numbers {
  padding: 16px 0;
  width: 44px;
  min-width: 44px;
  background: rgba(255,255,255,.03);
  border-right: 1px solid rgba(255,255,255,.06);
  text-align: right;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 12px;
  line-height: 1.65;
  color: rgba(255,255,255,.2);
  user-select: none;
  overflow: hidden;
  padding-right: 10px;
}

.code-textarea {
  flex: 1;
  resize: none;
  border: none;
  outline: none;
  padding: 16px;
  background: transparent;
  color: #e2dff8;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 12px;
  line-height: 1.65;
  tab-size: 2;
  white-space: pre-wrap;
  word-wrap: break-word;
  overflow-y: auto;
  overflow-x: hidden;
}

.code-textarea::placeholder {
  color: rgba(255,255,255,.2);
}

/* Clear button in header */
.clear-code-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: color .15s, border-color .15s;
}

.clear-code-btn:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

/* ─── Footer Buttons ───────────────────────────────────────── */
.pv-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
  font-family: inherit;
}

.pv-btn:hover {
  background: var(--surface);
  border-color: var(--text-muted);
}

.pv-btn--accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.pv-btn--accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.pv-btn svg {
  flex-shrink: 0;
}

.footer-spacer {
  flex: 1;
}

/* Upload input hidden */
.upload-input {
  display: none;
}

/* ─── Preview Panel ────────────────────────────────────────── */
.preview-canvas {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  background:
    radial-gradient(circle, rgba(99,102,241,.03) 1px, transparent 1px);
  background-size: 20px 20px;
}

.preview-content {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s ease;
}

.preview-content svg {
  max-width: 100%;
  max-height: 100%;
}

.preview-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
}

.preview-placeholder svg {
  opacity: .3;
}

/* ─── Zoom Controls ────────────────────────────────────────── */
.zoom-controls {
  display: flex;
  align-items: center;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.zoom-btn {
  background: none;
  border: none;
  padding: 6px 10px;
  cursor: pointer;
  color: var(--text);
  display: flex;
  align-items: center;
  transition: background .15s;
  font-family: inherit;
}

.zoom-btn:hover {
  background: var(--surface);
}

.zoom-level {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 44px;
  text-align: center;
  padding: 0 4px;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  line-height: 30px;
}

/* ─── Line / Col indicator ─────────────────────────────────── */
.cursor-pos {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-left: auto;
}

/* ─── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .preview-layout {
    grid-template-columns: 1fr;
    height: auto;
  }

  .editor-panel .panel-body,
  .preview-panel:last-child .panel-body {
    min-height: 300px;
  }

  .panel-footer {
    flex-wrap: wrap;
  }
}