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

body {
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  font-family: sans-serif;
  font-size: 11px;
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ---- Menu bar ---- */
.menu-bar { display: flex; background: var(--sz-color-menu); color: var(--sz-color-menu-text); font-size: 11px; user-select: none; border-bottom: 1px solid var(--sz-color-button-shadow); position: relative; z-index: 100; flex-shrink: 0; }
.menu-item { padding: 3px 8px; position: relative; cursor: default; }
.menu-item:hover, .menu-item.open { background: var(--sz-color-highlight); color: var(--sz-color-highlight-text); }
.menu-dropdown { display: none; position: absolute; top: 100%; left: 0; background: var(--sz-color-menu); border: 1px solid var(--sz-color-button-shadow); box-shadow: 2px 2px 4px rgba(0,0,0,0.2); min-width: 180px; z-index: 200; }
.menu-item.open .menu-dropdown { display: block; }
.menu-entry { padding: 3px 24px 3px 8px; white-space: nowrap; cursor: default; color: var(--sz-color-menu-text); }
.menu-entry:hover { background: var(--sz-color-highlight); color: var(--sz-color-highlight-text); }
.menu-separator { height: 1px; background: var(--sz-color-button-shadow); margin: 2px 4px; }

/* ---- Toolbar ---- */
#toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 6px;
  background: var(--sz-color-button-face);
  border-bottom: 1px solid var(--sz-color-button-shadow);
  flex-shrink: 0;
}

.toolbar-label {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  white-space: nowrap;
  cursor: default;
}

.toolbar-label select {
  font-size: 10px;
  padding: 1px 2px;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  color: var(--sz-color-window-text);
}

.toolbar-btn {
  padding: 2px 6px;
  font-size: 10px;
  font-family: inherit;
  border: 2px outset;
  border-color: var(--sz-color-button-highlight) var(--sz-color-button-shadow) var(--sz-color-button-shadow) var(--sz-color-button-highlight);
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
  cursor: default;
  white-space: nowrap;
}

.toolbar-btn:hover {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

.toolbar-btn.active {
  border-style: inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  background: var(--sz-color-window);
}

.toolbar-separator {
  width: 1px;
  height: 16px;
  background: var(--sz-color-button-shadow);
  margin: 0 2px;
  flex-shrink: 0;
}

/* ---- App layout ---- */
#app {
  display: grid;
  grid-template-rows: 1fr 4px 220px;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* ---- Preview area ---- */
#preview-area {
  border: 2px inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  overflow: hidden;
  position: relative;
  background: #f0f0f0;
}

#simulated-page {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
  transition: max-width 0.2s ease, background 0.2s ease;
}

#simulated-page.mobile {
  max-width: 375px;
  margin: 0 auto;
  border-left: 1px solid var(--sz-color-button-shadow);
  border-right: 1px solid var(--sz-color-button-shadow);
}

#sim-page-content {
  padding: 0;
  height: 100%;
  overflow: hidden;
}

/* ---- Simulated page elements ---- */
.sim-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: rgba(0,0,0,0.06);
}

.sim-nav-logo {
  width: 60px;
  height: 12px;
  background: rgba(0,0,0,0.15);
  border-radius: 2px;
}

.sim-nav-links {
  display: flex;
  gap: 12px;
}

.sim-nav-link {
  width: 36px;
  height: 8px;
  background: rgba(0,0,0,0.1);
  border-radius: 2px;
}

.sim-hero {
  padding: 24px 16px 20px;
  text-align: center;
}

.sim-hero-title {
  width: 60%;
  height: 14px;
  margin: 0 auto 8px;
  background: rgba(0,0,0,0.12);
  border-radius: 2px;
}

.sim-hero-subtitle {
  width: 40%;
  height: 8px;
  margin: 0 auto 12px;
  background: rgba(0,0,0,0.07);
  border-radius: 2px;
}

.sim-hero-btn {
  width: 70px;
  height: 14px;
  margin: 0 auto;
  background: rgba(0,0,0,0.1);
  border-radius: 3px;
}

.sim-columns {
  display: flex;
  gap: 10px;
  padding: 0 16px 12px;
}

.sim-card {
  flex: 1;
  height: 50px;
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 3px;
}

.sim-paragraph {
  width: 80%;
  height: 6px;
  margin: 6px 16px;
  background: rgba(0,0,0,0.06);
  border-radius: 2px;
}

.sim-paragraph.short {
  width: 55%;
}

/* Dark page mode */
#simulated-page.dark-page {
  background: #1a1a1a;
}

#simulated-page.dark-page .sim-nav { background: rgba(255,255,255,0.06); }
#simulated-page.dark-page .sim-nav-logo { background: rgba(255,255,255,0.15); }
#simulated-page.dark-page .sim-nav-link { background: rgba(255,255,255,0.1); }
#simulated-page.dark-page .sim-hero-title { background: rgba(255,255,255,0.12); }
#simulated-page.dark-page .sim-hero-subtitle { background: rgba(255,255,255,0.07); }
#simulated-page.dark-page .sim-hero-btn { background: rgba(255,255,255,0.1); }
#simulated-page.dark-page .sim-card { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.08); }
#simulated-page.dark-page .sim-paragraph { background: rgba(255,255,255,0.06); }

/* ---- Banner preview container ---- */
#banner-preview-container {
  position: absolute;
  z-index: 10;
  pointer-events: none;
}

#banner-preview-container * {
  pointer-events: auto;
}

/* Banner position variants */
#banner-preview-container.pos-bottom-bar { left: 0; right: 0; bottom: 0; }
#banner-preview-container.pos-top-bar { left: 0; right: 0; top: 0; }
#banner-preview-container.pos-center-modal { left: 50%; top: 50%; transform: translate(-50%, -50%); }
#banner-preview-container.pos-bottom-left { left: 12px; bottom: 12px; }
#banner-preview-container.pos-bottom-right { right: 12px; bottom: 12px; }

/* Backdrop */
#banner-preview-container.backdrop-dim::before,
#banner-preview-container.backdrop-blur::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

#banner-preview-container.backdrop-dim::before {
  background: rgba(0,0,0,0.4);
}

#banner-preview-container.backdrop-blur::before {
  background: rgba(0,0,0,0.2);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

/* Banner animation */
@keyframes cb-slide-up { from { transform: translateY(100%); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes cb-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes cb-scale-up { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@keyframes cb-slide-up-center { from { transform: translate(-50%, -50%) translateY(40px); opacity: 0; } to { transform: translate(-50%, -50%); opacity: 1; } }
@keyframes cb-scale-up-center { from { transform: translate(-50%, -50%) scale(0.9); opacity: 0; } to { transform: translate(-50%, -50%); opacity: 1; } }

.anim-slide-up { animation: cb-slide-up 0.4s ease-out both; }
.anim-fade-in { animation: cb-fade-in 0.4s ease-out both; }
.anim-scale-up { animation: cb-scale-up 0.3s ease-out both; }
.anim-slide-up-center { animation: cb-slide-up-center 0.4s ease-out both; }
.anim-scale-up-center { animation: cb-scale-up-center 0.3s ease-out both; }

/* ---- Splitter ---- */
#splitter {
  cursor: row-resize;
  background: var(--sz-color-button-face);
  border-top: 1px solid var(--sz-color-button-highlight);
  border-bottom: 1px solid var(--sz-color-button-shadow);
}

/* ---- Options panel ---- */
#options-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--sz-color-button-face);
  border-top: 1px solid var(--sz-color-button-shadow);
}

/* ---- Tabs ---- */
.tabs {
  display: flex;
  gap: 0;
  padding: 0 4px;
  border-bottom: 2px solid var(--sz-color-button-shadow);
  flex-shrink: 0;
}

.tab {
  padding: 3px 10px;
  font-size: 10px;
  cursor: default;
  border: 1px solid var(--sz-color-button-shadow);
  border-bottom: none;
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
  margin-right: -1px;
  margin-bottom: -2px;
}

.tab.active {
  background: var(--sz-color-window);
  color: var(--sz-color-window-text);
  border-bottom: 2px solid var(--sz-color-window);
  font-weight: bold;
  z-index: 1;
}

.tab:hover:not(.active) {
  background: var(--sz-color-button-highlight);
}

.tab-bodies {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.tab-body {
  display: none;
  position: absolute;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 6px 8px;
  background: var(--sz-color-window);
}

.tab-body.active {
  display: block;
}

/* ---- Form controls ---- */
.form-row {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 4px;
}

.form-row > label {
  min-width: 80px;
  font-size: 10px;
  text-align: right;
  flex-shrink: 0;
  cursor: default;
}

.form-row input[type="text"],
.form-row textarea,
.form-row select {
  flex: 1;
  font-size: 10px;
  padding: 2px 3px;
  border: 2px inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  color: var(--sz-color-window-text);
  font-family: inherit;
}

.form-row textarea {
  resize: vertical;
  min-height: 28px;
}

.form-row-checks {
  gap: 12px;
  padding-left: 84px;
}

.form-row-checks label {
  display: flex;
  align-items: center;
  gap: 3px;
  min-width: 0;
  font-size: 10px;
  cursor: default;
}

.form-row-checks input[type="checkbox"] { margin: 0; }

/* Color + hex paired inputs */
.color-row input[type="color"] {
  width: 22px;
  height: 18px;
  padding: 0;
  border: 1px solid var(--sz-color-button-shadow);
  cursor: default;
}

.hex-input {
  width: 60px !important;
  flex: 0 0 60px !important;
  font-family: 'Lucida Console', Consolas, monospace;
  font-size: 10px !important;
}

/* Range slider row */
.range-row input[type="range"] {
  flex: 1;
  height: 14px;
}

.range-row span {
  font-family: 'Lucida Console', Consolas, monospace;
  font-size: 10px;
  min-width: 26px;
  text-align: right;
}

/* Accessibility badge */
.a11y-row {
  margin-top: 4px;
  padding-top: 4px;
  border-top: 1px solid var(--sz-color-button-shadow);
}

#a11y-score {
  font-weight: bold;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 2px;
  cursor: default;
}

#a11y-score.pass { background: #4caf50; color: #fff; }
#a11y-score.aa { background: #8bc34a; color: #fff; }
#a11y-score.aa-large { background: #ffc107; color: #000; }
#a11y-score.fail { background: #f44336; color: #fff; }

/* ---- Category editor ---- */
#category-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 6px;
}

.category-item {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 4px;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  font-size: 10px;
}

.category-item input[type="text"] {
  flex: 1;
  font-size: 10px;
  padding: 1px 3px;
  border: 1px inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  color: var(--sz-color-window-text);
  font-family: inherit;
}

.category-item label {
  display: flex;
  align-items: center;
  gap: 2px;
  white-space: nowrap;
  cursor: default;
  font-size: 9px;
}

.category-item .cat-del {
  font-size: 12px;
  color: var(--sz-color-gray-text);
  cursor: default;
  padding: 0 2px;
  flex-shrink: 0;
}

.category-item .cat-del:hover {
  color: #c00;
}

.action-btn {
  padding: 3px 8px;
  font-size: 10px;
  font-family: inherit;
  border: 2px outset;
  border-color: var(--sz-color-button-highlight) var(--sz-color-button-shadow) var(--sz-color-button-shadow) var(--sz-color-button-highlight);
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
  cursor: default;
}

.action-btn:hover {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

.action-btn:active {
  border-style: inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
}

/* ---- Code tab ---- */
.code-sub-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 4px;
}

.code-sub-tab {
  padding: 2px 8px;
  font-size: 9px;
  font-family: inherit;
  border: 1px solid var(--sz-color-button-shadow);
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
  cursor: default;
  margin-right: -1px;
}

.code-sub-tab.active {
  background: var(--sz-color-window);
  font-weight: bold;
}

.code-sub-tab:hover:not(.active) {
  background: var(--sz-color-button-highlight);
}

#code-output {
  flex: 1;
  font-family: 'Lucida Console', Consolas, monospace;
  font-size: 10px;
  line-height: 1.4;
  padding: 4px;
  border: 2px inset;
  border-color: var(--sz-color-button-shadow) var(--sz-color-button-highlight) var(--sz-color-button-highlight) var(--sz-color-button-shadow);
  background: var(--sz-color-window);
  color: var(--sz-color-window-text);
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  user-select: text;
  -webkit-user-select: text;
  margin-bottom: 4px;
  min-height: 0;
}

/* Code tab flex layout */
#tab-code {
  display: none;
  flex-direction: column;
}

#tab-code.active {
  display: flex;
}

.code-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* Syntax highlighting -- intentional fixed colors for code output */
.hl-tag { color: #881280; }
.hl-attr { color: #994500; }
.hl-str { color: #1a1aa6; }
.hl-prop { color: #881280; }
.hl-val { color: #1a1aa6; }
.hl-comment { color: #236e25; font-style: italic; }
.hl-kw { color: #0000ff; }
.hl-fn { color: #795e26; }
.hl-sel { color: #800000; }

/* ---- Dialog ---- */
.dialog-overlay {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.5);
  z-index: 10000;
}

.dialog-overlay.visible {
  display: flex;
}

.dialog {
  background: var(--sz-color-window);
  border: 2px outset;
  border-color: var(--sz-color-button-highlight) var(--sz-color-button-shadow) var(--sz-color-button-shadow) var(--sz-color-button-highlight);
  padding: 8px;
  min-width: 300px;
  max-width: 420px;
  max-height: 80vh;
  overflow-y: auto;
}

.dialog-title {
  font-weight: bold;
  font-size: 11px;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--sz-color-button-shadow);
}

.dialog-body {
  font-size: 11px;
  line-height: 1.4;
  margin-bottom: 8px;
  user-select: text;
  -webkit-user-select: text;
}

.dialog-buttons {
  text-align: right;
}

.dialog-buttons button {
  padding: 3px 16px;
  font-size: 11px;
  font-family: inherit;
  border: 2px outset;
  border-color: var(--sz-color-button-highlight) var(--sz-color-button-shadow) var(--sz-color-button-shadow) var(--sz-color-button-highlight);
  background: var(--sz-color-button-face);
  color: var(--sz-color-button-text);
  cursor: default;
}

.dialog-buttons button:hover {
  background: var(--sz-color-highlight);
  color: var(--sz-color-highlight-text);
}

/* ---- Banner preview inner styles ---- */
.cb-preview {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.cb-preview h3 {
  margin: 0 0 6px;
}

.cb-preview p {
  margin: 0 0 10px;
  line-height: 1.4;
}

.cb-preview a {
  text-decoration: underline;
}

.cb-preview .cb-buttons {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.cb-preview .cb-btn {
  padding: 6px 16px;
  border: none;
  cursor: default;
  font-size: inherit;
  font-family: inherit;
  font-weight: 600;
}

.cb-preview .cb-categories {
  margin: 8px 0 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cb-preview .cb-cat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.85em;
}

.cb-preview .cb-cat-info {
  flex: 1;
}

.cb-preview .cb-cat-name {
  font-weight: 600;
}

.cb-preview .cb-cat-desc {
  opacity: 0.7;
  font-size: 0.9em;
}

/* Toggle switch */
.cb-preview .cb-toggle {
  position: relative;
  width: 32px;
  height: 16px;
  flex-shrink: 0;
}

.cb-preview .cb-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.cb-preview .cb-toggle-slider {
  position: absolute;
  inset: 0;
  background: #ccc;
  border-radius: 8px;
  cursor: default;
  transition: background 0.2s;
}

.cb-preview .cb-toggle-slider::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  left: 2px;
  top: 2px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}

.cb-preview .cb-toggle input:checked + .cb-toggle-slider {
  background: #4caf50;
}

.cb-preview .cb-toggle input:checked + .cb-toggle-slider::before {
  transform: translateX(16px);
}

.cb-preview .cb-toggle input:disabled + .cb-toggle-slider {
  opacity: 0.5;
  cursor: not-allowed;
}