* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #fafafa;
  color: #111;
  display: flex;
  flex-direction: column;
}

header {
  background: #1e1e1e;
  color: #f5f5f5;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
header h1 { margin: 0; font-size: 1.05rem; font-weight: 600; }
.settings { display: flex; gap: 6px; align-items: center; }
.settings input { padding: 4px 8px; font-size: 12px; border: 1px solid #444; background: #2a2a2a; color: #eee; border-radius: 3px; width: 220px; }

main {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(440px, 1fr) minmax(360px, 1fr);
  overflow: hidden;
}

.left {
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-right: 1px solid #e0e0e0;
}

.right {
  background: #ececec;
  padding: 12px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.panel {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.panel h3 { margin: 0 0 4px 0; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; color: #555; }

.meta { display: flex; gap: 4px; flex-wrap: wrap; }
.meta input, .meta select { flex: 1; min-width: 80px; padding: 4px 6px; font-size: 12px; border: 1px solid #ccc; border-radius: 3px; }

label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: #666; }

.editor-block { display: flex; flex-direction: column; gap: 4px; }
.editor-bar { display: flex; align-items: center; gap: 6px; }
.bar-spacer { flex: 1; }
.btn-mini {
  font-size: 11px;
  padding: 2px 8px;
  background: #f0f0f0;
  border: 1px solid #bbb;
  border-radius: 3px;
  color: #333;
  cursor: pointer;
}
.btn-mini:hover { background: #e0e0e0; }
.btn-icon {
  font-size: 11px;
  padding: 0 6px;
  height: 20px;
  line-height: 18px;
  background: #f5f5f5;
  border: 1px solid #ccc;
  border-radius: 3px;
  color: #444;
  cursor: pointer;
}
.btn-icon:hover { background: #e5e5e5; }
.btn-icon .caret { display: inline-block; transition: transform 0.15s ease; }

.monaco-host {
  height: 180px;
  border: 1px solid #ccc;
  border-radius: 3px;
  overflow: hidden;
  background: #1e1e1e;
}
.monaco-host-tall { height: 280px; }
.monaco-host-short { height: 110px; }

/* Collapsed: hide the editor body, keep the bar */
.editor-block.collapsed .monaco-host { display: none; }
.editor-block.collapsed .btn-icon .caret { transform: rotate(-90deg); }

/* Focused: this editor takes most of the available height. Other editors
   collapse automatically (handled in JS). */
.editor-block.focused .monaco-host {
  height: min(80vh, 700px);
  min-height: 400px;
}

.actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.actions select { flex: 1; padding: 4px 6px; }
.toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: #333;
  text-transform: none;
  letter-spacing: normal;
  cursor: pointer;
}
.toggle input { margin: 0; }

.hint { font-size: 11px; color: #888; font-weight: normal; text-transform: none; letter-spacing: 0; margin-left: 6px; }
.links-list { display: flex; flex-direction: column; gap: 6px; }
.link-row { display: flex; gap: 4px; align-items: center; }
.link-row input { flex: 1; padding: 4px 6px; font-size: 12px; border: 1px solid #ccc; border-radius: 3px; min-width: 0; }
.link-row input.link-target { flex: 0 0 110px; }
.link-row .btn-mini { padding: 2px 8px; }
.link-row .link-del { background: #fbe9e9; border-color: #c62828; color: #c62828; }
.link-row .link-del:hover { background: #f5cccc; }

button {
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  border: 1px solid #444;
  background: #fff;
  border-radius: 3px;
}
button:hover { background: #f0f0f0; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

#previewBtn, #bundleBtn { background: #1e88e5; color: #fff; border-color: #1565c0; }
#previewBtn:hover, #bundleBtn:hover { background: #1976d2; }
#saveTplBtn { background: #43a047; color: #fff; border-color: #2e7d32; }
#saveTplBtn:hover { background: #388e3c; }
#delTplBtn { background: #e53935; color: #fff; border-color: #c62828; }
#delTplBtn:hover { background: #d32f2f; }
#designBtn, #designApplyBtn, #designCancelBtn, #snippetBtn {
  background: #6a1b9a; color: #fff; border-color: #4a148c;
}
#designBtn:hover, #designApplyBtn:hover, #designCancelBtn:hover, #snippetBtn:hover { background: #4a148c; }

.preview-bar {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.status { font-size: 11px; color: #666; min-height: 14px; flex: 1; }
.status.error { color: #c62828; }

.spinner {
  width: 12px;
  height: 12px;
  border: 2px solid #ccc;
  border-top-color: #1e88e5;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

#preview {
  width: 100%;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}
/* When showing an iframe (PDF preview or design mode), drop the centering
   flex so the iframe can claim 100% of the available width and height. */
#preview:has(iframe) {
  display: block;
}
#preview img {
  max-width: 100%;
  max-height: 100%;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}
#preview iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 500px;
  border: 0;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}
#preview iframe.design-frame { min-height: 500px; }

@media (max-width: 800px) {
  main { grid-template-columns: 1fr; }
  .left { border-right: 0; border-bottom: 1px solid #e0e0e0; }
}

#toasts {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
  pointer-events: none;
}
.toast {
  background: #2a2a2a;
  color: #fff;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  pointer-events: auto;
  max-width: 360px;
  opacity: 1;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.toast-leave { opacity: 0; transform: translateY(8px); }
.toast-success { background: #2e7d32; }
.toast-error { background: #c62828; }
.toast-info { background: #1565c0; }

/* ---------- modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal[hidden] { display: none; }
.modal-card {
  background: #1e1e1e;
  color: #f5f5f5;
  border-radius: 6px;
  width: min(900px, 100%);
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.modal-head {
  padding: 10px 14px;
  background: #2a2a2a;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid #444;
}
.modal-head strong { font-size: 13px; }
.tabs { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.tab {
  background: transparent;
  color: #aaa;
  border: 1px solid #444;
  padding: 4px 10px;
  font-size: 11px;
}
.tab:hover { background: #333; color: #fff; }
.tab.active { background: #1e88e5; color: #fff; border-color: #1565c0; }
.modal-close {
  background: transparent;
  color: #ccc;
  border: 0;
  font-size: 22px;
  line-height: 1;
  padding: 0 6px;
  cursor: pointer;
}
.modal-close:hover { color: #fff; background: transparent; }
.modal-body {
  flex: 1;
  overflow: auto;
  padding: 14px;
  background: #161616;
}
.modal-body pre {
  margin: 0;
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-all;
  color: #e0e0e0;
}
.modal-foot {
  padding: 10px 14px;
  background: #2a2a2a;
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid #444;
}
.modal-foot button {
  background: #1e88e5; color: #fff; border-color: #1565c0;
}
.modal-foot .status { color: #aaa; }