/* ─── Design Tokens (Apple HIG) ─── */
:root {
  /* Marketing page tokens (dark) */
  --bg-primary: #0D1117;
  --bg-secondary: #161B22;
  --bg-card: #1C2128;
  --bg-card-hover: #21262D;
  --text-primary: #E6EDF3;
  --text-secondary: #8B949E;
  --text-muted: #484F58;
  --accent: #007AFF;
  --accent-hover: #0071EB;
  --accent-glow: rgba(0, 122, 255, 0.2);
  --accent-2: #5AC8FA;
  --border: #30363D;
  --border-light: #21262D;
  --success: #34C759;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-sm: 8px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(0, 122, 255, 0.12);
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Inter', sans-serif;
  --mono: 'SF Mono', SFMono-Regular, ui-monospace, 'JetBrains Mono', monospace;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;

  /* Canvas-specific tokens — Light (Apple HIG default) */
  --fd-bg: #F5F5F7;
  --fd-surface: rgba(255, 255, 255, 0.82);
  --fd-surface-solid: #FFFFFF;
  --fd-surface-hover: rgba(0, 0, 0, 0.04);
  --fd-surface-active: rgba(0, 0, 0, 0.06);
  --fd-toolbar-bg: rgba(246, 246, 248, 0.72);
  --fd-toolbar-border: rgba(0, 0, 0, 0.09);
  --fd-border: rgba(0, 0, 0, 0.08);
  --fd-text: #1D1D1F;
  --fd-text-secondary: #86868B;
  --fd-text-tertiary: #AEAEB2;
  --fd-accent: #007AFF;
  --fd-accent-fg: #FFFFFF;
  --fd-accent-dim: rgba(0, 122, 255, 0.1);
  --fd-accent-border: rgba(0, 122, 255, 0.35);
  --fd-accent-hover: #0071EB;
  --fd-segment-bg: rgba(142, 142, 147, 0.12);
  --fd-segment-active: #FFFFFF;
  --fd-segment-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 1px rgba(0, 0, 0, 0.04);
  --fd-shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06);
  --fd-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
  --fd-shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
  --fd-radius: 10px;
  --fd-radius-sm: 7px;
  --fd-key-border: rgba(0, 0, 0, 0.1);
  --fd-key-bg: rgba(0, 0, 0, 0.03);
  --fd-input-bg: rgba(142, 142, 147, 0.08);
  --fd-input-border: rgba(0, 0, 0, 0.06);
  --fd-input-focus: rgba(0, 122, 255, 0.3);
  --fd-overlay-bg: rgba(0, 0, 0, 0.4);
}
/* Canvas dark theme override */
.dark-canvas {
  --fd-bg: #1C1C1E;
  --fd-surface: rgba(44, 44, 46, 0.82);
  --fd-surface-solid: #2C2C2E;
  --fd-surface-hover: rgba(255, 255, 255, 0.06);
  --fd-surface-active: rgba(255, 255, 255, 0.08);
  --fd-toolbar-bg: rgba(28, 28, 30, 0.72);
  --fd-toolbar-border: rgba(255, 255, 255, 0.06);
  --fd-border: rgba(255, 255, 255, 0.06);
  --fd-text: #F5F5F7;
  --fd-text-secondary: #98989D;
  --fd-text-tertiary: #636366;
  --fd-accent: #0A84FF;
  --fd-accent-dim: rgba(10, 132, 255, 0.15);
  --fd-accent-border: rgba(10, 132, 255, 0.4);
  --fd-accent-hover: #409CFF;
  --fd-segment-bg: rgba(142, 142, 147, 0.16);
  --fd-segment-active: rgba(99, 99, 102, 0.6);
  --fd-segment-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 1px rgba(0, 0, 0, 0.1);
  --fd-shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.15);
  --fd-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
  --fd-shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.35);
  --fd-key-border: rgba(255, 255, 255, 0.1);
  --fd-key-bg: rgba(255, 255, 255, 0.04);
  --fd-input-bg: rgba(142, 142, 147, 0.12);
  --fd-input-border: rgba(255, 255, 255, 0.06);
  --fd-input-focus: rgba(10, 132, 255, 0.4);
  --fd-overlay-bg: rgba(0, 0, 0, 0.6);
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }
code {
  font-family: var(--mono);
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent);
}

/* ─── Nav ─── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--transition), backdrop-filter var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.1rem;
}
.logo-icon { font-size: 1.4rem; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }

/* ─── Navbar Theme Toggle ─── */
.theme-toggle-btn {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  padding: 0;
  line-height: 1;
}
.theme-toggle-btn:hover {
  background: var(--bg-card-hover);
  transform: scale(1.08);
  border-color: var(--text-muted);
}
.theme-toggle-btn:active {
  transform: scale(0.95);
}

.btn-nav {
  background: var(--accent) !important;
  color: #fff !important;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  transition: background var(--transition), transform var(--transition) !important;
}
.btn-nav:hover {
  background: var(--accent-hover) !important;
  transform: translateY(-1px);
}
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.mobile-menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-menu-btn.open span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Hero ─── */
#hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 64px 24px 32px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(108, 92, 231, 0.15), transparent),
    radial-gradient(ellipse 60% 80% at 80% 60%, rgba(9, 132, 227, 0.1), transparent),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(108, 92, 231, 0.08), transparent);
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(48, 54, 61, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48, 54, 61, 0.3) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black, transparent);
}
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin-bottom: 16px;
}

#hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 16px;
  letter-spacing: -0.03em;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto 24px;
  line-height: 1.7;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108, 92, 231, 0.4);
  color: #fff;
}
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--bg-card);
  border-color: var(--text-muted);
  color: var(--text-primary);
  transform: translateY(-2px);
}
.btn-icon { font-size: 0.9em; }
/* ── Hero Stats (inline) ── */
.hero-stats-inline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.hero-stats-inline strong {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}
.stat-dot {
  color: var(--text-muted);
  font-size: 0.7rem;
}

/* ─── Hero Playground ─── */
.hero-playground {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max-width);
  margin-top: 8px;
}


/* ─── Sections ─── */
.section { padding: 100px 24px; }
.section-dark { background: var(--bg-secondary); }
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ─── Playground ─── */
.playground-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
}
.toolbar-left, .toolbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toolbar-btn {
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
}
.toolbar-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--text-muted);
}
.toolbar-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ─── Settings Dropdown (inside toolbar) ─── */
.settings-dropdown-container {
  position: relative;
  z-index: 30;
}
.settings-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  background: var(--fd-surface);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 0.5px solid var(--fd-border);
  border-radius: 8px;
  box-shadow: var(--fd-shadow-lg);
  flex-direction: column;
  z-index: 1000;
  min-width: 180px;
  padding: 4px;
}
.settings-menu.visible { display: flex; }
.settings-menu-item {
  background: none;
  border: none;
  padding: 5px 10px;
  color: var(--fd-text);
  font-size: 12px;
  cursor: pointer;
  text-align: left;
  border-radius: 5px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: none;
}
.settings-menu-item:hover {
  background: var(--fd-accent);
  color: var(--fd-accent-fg);
}
.settings-menu-item .sm-icon {
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}
.settings-menu-item .sm-label { flex: 1; }
.settings-menu-item.toggle-on .sm-icon { color: var(--fd-accent); }
.settings-menu-sep {
  height: 1px;
  background: var(--fd-border);
  margin: 3px 8px;
}

/* ─── Toast Notification ─── */
.fd-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 18px;
  background: rgba(22, 27, 34, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-primary);
  font-size: 13px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 200;
  opacity: 0;
  animation: toastIn 0.2s ease forwards;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.playground-split {
  display: grid;
  grid-template-columns: var(--editor-width, 2fr) auto 3fr;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--border);
  box-shadow: var(--shadow), var(--shadow-glow);
  min-height: 75vh;
}

/* ── Split Resize Handle ── */
.split-resize-handle {
  width: 6px;
  cursor: col-resize;
  background: var(--border);
  position: relative;
  z-index: 2;
  transition: background 0.15s;
}
.split-resize-handle:hover,
.split-resize-handle.active {
  background: var(--accent);
}
.playground-editor, .playground-canvas {
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
}
.editor-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  height: 42px;
  box-sizing: border-box;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.editor-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.editor-dot.design { background: var(--success, #34d399); }
.canvas-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.canvas-dot { background: var(--success); }
#fd-editor {
  flex: 1;
  resize: none;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.7;
  padding: 16px 20px;
  tab-size: 2;
}
#canvas-wrapper {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--fd-bg);
  --layers-width: 180px;
  --props-width: 0px;
  display: flex;
  flex-direction: column;
}

/* ── Canvas Toolbar (Apple HIG frosted bar) ── */
#canvas-toolbar {
  display: flex;
  gap: 3px;
  padding: 10px 16px;
  height: 42px;
  box-sizing: border-box;
  background: var(--fd-toolbar-bg, rgba(246,246,248,0.72));
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 0.5px solid var(--fd-toolbar-border, rgba(0,0,0,0.06));
  flex-shrink: 0;
  align-items: center;
  z-index: 10;
}
.dark-theme #canvas-toolbar {
  --fd-toolbar-bg: rgba(28,28,30,0.72);
  --fd-toolbar-border: rgba(255,255,255,0.06);
}
.tb-zone { display: flex; align-items: center; gap: 3px; }
.tb-left { flex: 0 0 auto; }
.tb-center { flex: 1 1 auto; justify-content: center; }
.tb-right { flex: 0 0 auto; gap: 4px; }

/* ── Tool Buttons ── */
.tool-btn {
  padding: 4px 8px;
  border: none;
  background: transparent;
  color: var(--fd-text-secondary, #86868B);
  border-radius: 6px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  font-family: inherit;
  transition: all 0.18s cubic-bezier(0.25, 0.1, 0.25, 1);
  display: flex;
  align-items: center;
  gap: 4px;
  position: relative;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.tool-btn:hover {
  color: var(--fd-text, #1D1D1F);
  background: rgba(0,0,0,0.04);
}
.dark-theme .tool-btn:hover {
  background: rgba(255,255,255,0.06);
}
.tool-btn:active {
  transform: scale(0.97);
}
.tool-btn.loading {
  opacity: 0.5;
  pointer-events: none;
}
.tool-btn.loading::after {
  content: '';
  width: 10px; height: 10px;
  border: 1.5px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: tb-spin 0.6s linear infinite;
  margin-left: 4px;
}
@keyframes tb-spin { to { transform: rotate(360deg); } }

/* ── View Toggle (segmented control) ── */
.view-toggle {
  display: flex;
  gap: 1px;
  background: rgba(142,142,147,0.12);
  border-radius: 6px;
  padding: 2px;
}
.dark-theme .view-toggle {
  background: rgba(142,142,147,0.16);
}
.view-btn {
  padding: 3px 10px;
  border: none;
  background: transparent;
  color: var(--fd-text-secondary, #86868B);
  border-radius: 5px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  font-family: inherit;
  transition: all 0.15s ease;
  letter-spacing: -0.01em;
}
.view-btn:hover { color: var(--fd-text, #1D1D1F); }
.view-btn.active {
  background: rgba(99,99,102,0.5);
  color: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2), 0 1px 1px rgba(0,0,0,0.1);
  font-weight: 600;
}
.dark-theme .view-btn.active {
  background: rgba(99,99,102,0.6);
}

/* ── Status text ── */
#canvas-status {
  font-size: 10px;
  color: var(--fd-text-secondary, #86868B);
  letter-spacing: -0.01em;
  opacity: 0.7;
  margin-right: 4px;
}

/* ── Zen mode: hide toolbar zones ── */
.zen-mode .zen-full-only { display: none !important; }
.zen-mode #canvas-toolbar {
  padding: 4px 8px;
  background: transparent;
  border-bottom: none;
  backdrop-filter: none;
  justify-content: flex-end;
  position: absolute;
  top: 0; right: 0;
  z-index: 50;
}

/* ── Canvas content area below toolbar ── */
#canvas-content {
  flex: 1;
  position: relative;
  overflow: hidden;
}
#fd-canvas {
  position: absolute;
  left: var(--layers-width, 180px);
  top: 0;
  right: var(--props-width, 0px);
  bottom: 0;
  width: calc(100% - var(--layers-width, 180px) - var(--props-width, 0px));
  height: 100%;
  display: block;
}

/* ─── Layers Panel ─── */
#layers-panel {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--layers-width, 180px);
  min-width: 0;
  max-width: 400px;
  background: var(--fd-surface);
  border-right: 0.5px solid var(--fd-border);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 10;
  font-size: 12px;
  padding: 0;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  transition: width 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
}
#layers-panel.no-transition { transition: none; }
#layers-panel.collapsed {
  width: 0 !important;
  border-right: none;
  overflow: hidden;
}
#layers-panel::-webkit-scrollbar { width: 6px; }
#layers-panel::-webkit-scrollbar-track { background: transparent; }
#layers-panel::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }

/* ─── Panel Resize Handles ─── */
.panel-resize-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 4px;
  cursor: col-resize;
  z-index: 20;
  background: transparent;
  transition: background 0.15s ease;
}
.panel-resize-handle::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 8px;
  left: -2px;
}
.panel-resize-handle:hover,
.panel-resize-handle.active {
  background: var(--accent, #6C5CE7);
}
.panel-resize-handle.layers-handle {
  right: -2px;
}
.panel-resize-handle.props-handle {
  left: -2px;
}

/* ─── Collapsed Panel Indicators ─── */
.panel-restore-strip {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 6px;
  z-index: 16;
  cursor: pointer;
  background: transparent;
  transition: background 0.15s ease;
}
.panel-restore-strip:hover {
  background: rgba(108, 92, 231, 0.3);
}
.panel-restore-strip.layers-restore {
  left: 0;
  display: none;
}
.panel-restore-strip.props-restore {
  right: 0;
  display: none;
}
#layers-panel.collapsed ~ .layers-restore { display: block; }
#props-panel.collapsed ~ .props-restore { display: block; }
.layers-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 8px;
  border-bottom: 0.5px solid var(--fd-border);
  position: sticky;
  top: 0;
  background: var(--fd-surface);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  z-index: 1;
}
.layers-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--fd-text-secondary);
  padding: 0;
  font-weight: 600;
}
.layers-count {
  font-size: 10px;
  color: var(--fd-text-tertiary);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.layers-body {
  padding: 4px 0;
}
.layer-item {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 8px 0 0;
  height: 28px;
  cursor: default;
  border-radius: 0;
  margin: 0;
  transition: background 0.06s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  position: relative;
}
.layer-item:hover {
  background: var(--fd-surface-hover);
}
.layer-item.selected {
  background: var(--fd-accent);
  color: var(--fd-accent-fg);
}
.layer-item.selected .layer-name { color: var(--fd-accent-fg); }
.layer-item.selected .layer-kind { color: rgba(255,255,255,0.6); }
.layer-item.selected .layer-icon { color: rgba(255,255,255,0.75); }
.layer-indent {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.layer-indent-guide {
  width: 12px;
  height: 28px;
  position: relative;
  flex-shrink: 0;
}
.layer-indent-guide::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--fd-border);
}
.layer-chevron {
  width: 16px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  cursor: pointer;
  color: var(--fd-text-tertiary);
  font-size: 8px;
  transition: transform 0.15s ease;
  user-select: none;
}
.layer-chevron.expanded {
  transform: rotate(90deg);
}
.layer-chevron.empty {
  visibility: hidden;
}
.layer-icon {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--fd-text-secondary);
  opacity: 0.8;
  margin-right: 6px;
}
.layer-name {
  color: var(--fd-text);
  flex: 1;
  min-width: 0;
  font-size: 11px;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}
.layer-kind {
  color: var(--fd-text-tertiary);
  font-size: 9px;
  margin-left: auto;
  padding-right: 4px;
  padding-left: 6px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  font-weight: 500;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.layer-item:hover .layer-kind {
  opacity: 1;
}
.layer-children.collapsed {
  display: none;
}

/* ─── Floating Scroll Toolbar ─── */
#floating-toolbar {
  position: absolute;
  left: calc(var(--layers-width, 180px) + 8px);
  bottom: 12px;
  z-index: 25;
  display: flex;
  align-items: stretch;
  --left-roll-width: 12px;
  --right-roll-width: 12px;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}
#floating-toolbar.horizontal { flex-direction: row; }
.scroll-handle {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  position: relative;
  min-width: 16px;
  min-height: 16px;
  padding: 0 4px;
}
.scroll-handle:active { cursor: grabbing; }
.horizontal .handle-start { flex-direction: row; }
.horizontal .handle-end { flex-direction: row; }
.wood-core {
  background: linear-gradient(90deg, #5c3a21 0%, #8b5a33 30%, #a06b3f 50%, #8b5a33 70%, #5c3a21 100%);
  position: absolute;
  box-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}
.horizontal .wood-core {
  width: 6px;
  top: -4px;
  bottom: -4px;
  border-radius: 3px;
}
.finial-top, .finial-bottom {
  position: absolute;
  background: radial-gradient(circle at 30% 30%, #a06b3f, #5c3a21);
  border-radius: 50%;
  width: 8px;
  height: 8px;
  left: -1px;
}
.horizontal .finial-top { top: -4px; }
.horizontal .finial-bottom { bottom: -4px; }
.paper-roll {
  background: linear-gradient(90deg, #e0e0e0 0%, #ffffff 20%, #f4f4f4 80%, #cccccc 100%);
  box-shadow: inset 2px 0 4px rgba(0,0,0,0.05), inset -2px 0 4px rgba(0,0,0,0.1), 2px 2px 8px rgba(0,0,0,0.2);
  z-index: 2;
  transition: width 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.dark-canvas .paper-roll {
  background: linear-gradient(90deg, #3a3a3c 0%, #4a4a4c 20%, #404042 80%, #2c2c2e 100%);
  box-shadow: inset 2px 0 4px rgba(0,0,0,0.2), inset -2px 0 4px rgba(0,0,0,0.4), 2px 2px 8px rgba(0,0,0,0.4);
}
.horizontal .left-roll { width: var(--left-roll-width); height: 38px; border-radius: 8px; }
.horizontal .right-roll { width: var(--right-roll-width); height: 38px; border-radius: 8px; }
.scroll-paper-body {
  background: linear-gradient(to bottom, #F8F8F8, #E8E8E8);
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 0 4px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.15);
  z-index: 1;
  overflow: visible;
  height: 38px;
  flex-direction: row;
}
.dark-canvas .scroll-paper-body {
  background: linear-gradient(to bottom, #3a3a3c, #2c2c2e);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2), 0 4px 12px rgba(0,0,0,0.4);
}
.ft-tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--fd-text-secondary);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  flex-shrink: 0;
}
.ft-tool-btn svg { width: 18px; height: 18px; flex-shrink: 0; pointer-events: none; }
.ft-tool-btn:hover { background: rgba(0,0,0,0.06); color: var(--fd-text); }
.dark-canvas .ft-tool-btn:hover { background: rgba(255,255,255,0.1); }
.ft-tool-btn:active { transform: scale(0.92); }
.ft-tool-btn.active {
  background: var(--fd-accent);
  color: #fff;
  box-shadow: 0 2px 6px rgba(42, 110, 240, 0.3);
}
.dark-canvas .ft-tool-btn.active { box-shadow: 0 2px 6px rgba(58, 130, 246, 0.4); }
.ft-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 10px;
  background: var(--fd-surface);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: 0.5px solid var(--fd-border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.10), 0 1px 4px rgba(0,0,0,0.06);
  font-size: 11px;
  font-weight: 500;
  color: var(--fd-text);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, visibility 0.15s ease;
  transition-delay: 0s;
  z-index: 100;
  letter-spacing: -0.01em;
}
.ft-tooltip .tt-shortcut {
  color: var(--fd-text-tertiary);
  margin-left: 4px;
  font-family: var(--mono);
}
.ft-tool-btn:hover .ft-tooltip {
  opacity: 1;
  visibility: visible;
  transition-delay: 0.4s;
}
.ft-tool-btn:active .ft-tooltip {
  opacity: 0;
  visibility: hidden;
  transition-delay: 0s;
}

/* ─── Toolbar Theme Toggle + Separator ─── */
.ft-sep {
  width: 1px;
  height: 20px;
  background: var(--fd-border);
  margin: 0 2px;
  flex-shrink: 0;
}
.ft-theme-icon {
  font-size: 16px;
  line-height: 1;
  pointer-events: none;
}

/* ── (Zoom pill removed — zoom is now in minimap controls) ── */

/* ─── Properties Panel ─── */
#props-panel {
  display: none;
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 0;
  overflow: hidden;
  background: var(--fd-surface);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-left: 0.5px solid var(--fd-border);
  z-index: 15;
  font-size: 11px;
  color: var(--fd-text);
  transition: width 0.25s cubic-bezier(0.25, 0.1, 0.25, 1);
  flex-shrink: 0;
  overflow-y: auto;
  min-width: 0;
  max-width: 360px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}
#props-panel.no-transition { transition: none; }
#props-panel.collapsed {
  width: 0 !important;
  padding: 0;
  border-left: none;
  overflow: hidden;
}
#props-panel::-webkit-scrollbar { width: 4px; }
#props-panel::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }
#props-panel.visible {
  display: block;
  width: var(--props-width, 220px);
}
.props-inner {
  padding: 14px 12px;
  min-width: 200px;
}
.props-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--fd-text);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: -0.01em;
}
.props-title .kind-badge {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--fd-accent-dim);
  color: var(--fd-accent);
  font-weight: 600;
}
.props-section {
  margin-bottom: 14px;
}
.props-section-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--fd-text-secondary);
  margin-bottom: 7px;
  font-weight: 600;
}
.props-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px 8px;
}
.pp-field {
  display: flex;
  align-items: center;
  gap: 4px;
}
.pp-field span {
  font-size: 10px;
  color: var(--fd-text-tertiary);
  width: 14px;
  flex-shrink: 0;
}
.pp-field input {
  width: 100%;
  background: var(--fd-input-bg);
  border: 1px solid var(--fd-input-border);
  border-radius: 4px;
  padding: 3px 6px;
  color: var(--fd-text);
  font-size: 11px;
  font-family: var(--mono);
  outline: none;
  transition: border-color 0.15s ease;
}
.pp-field input:focus {
  border-color: var(--fd-accent);
}
.pp-field input[readonly] {
  opacity: 0.5;
  cursor: default;
}
.pp-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.pp-row span {
  font-size: 11px;
  color: var(--fd-text-secondary);
}
.pp-row input[type="color"] {
  width: 28px;
  height: 22px;
  border: 1px solid var(--fd-input-border);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  padding: 0;
}
.pp-row input[type="number"] {
  width: 60px;
  background: var(--fd-input-bg);
  border: 1px solid var(--fd-input-border);
  border-radius: 4px;
  padding: 3px 6px;
  color: var(--fd-text);
  font-size: 11px;
  font-family: var(--mono);
  outline: none;
  transition: border-color 0.15s ease;
}
.pp-row input[type="number"]:focus {
  border-color: var(--fd-accent);
}
.pp-opacity-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}
.pp-opacity-wrap input[type="range"] {
  width: 80px;
  accent-color: var(--fd-accent);
  height: 4px;
}
.pp-opacity-wrap span {
  font-size: 10px;
  color: var(--fd-text-tertiary);
  width: 32px;
  text-align: right;
}
.pp-actions {
  display: flex;
  gap: 6px;
  padding-top: 8px;
  border-top: 0.5px solid var(--fd-border);
}
.pp-action-btn {
  flex: 1;
  padding: 5px 0;
  border: 1px solid var(--fd-border);
  background: transparent;
  color: var(--fd-text-secondary);
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  transition: all 0.15s ease;
}
.pp-action-btn:hover {
  background: var(--fd-surface-hover);
  color: var(--fd-text);
}
.pp-action-btn:active { transform: scale(0.95); }
.pp-action-btn.pp-delete:hover {
  background: rgba(255, 59, 48, 0.15);
  color: #FF3B30;
  border-color: rgba(255, 59, 48, 0.3);
}

/* ─── Context Menu ─── */
#ctx-menu {
  display: none;
  position: fixed;
  z-index: 100;
  min-width: 160px;
  padding: 6px;
  background: var(--fd-surface);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 0.5px solid var(--fd-border);
  border-radius: var(--fd-radius);
  box-shadow: var(--fd-shadow-lg);
}
#ctx-menu.visible { display: block; }
.ctx-item {
  display: block;
  width: 100%;
  padding: 6px 10px;
  border: none;
  background: transparent;
  color: var(--fd-text-secondary);
  font-size: 12px;
  text-align: left;
  border-radius: 6px;
  cursor: pointer;
  transition: none;
}
.ctx-item:hover {
  background: var(--fd-accent);
  color: var(--fd-accent-fg);
}
.ctx-item[data-action="delete"]:hover {
  background: rgba(255, 59, 48, 0.8);
}
.ctx-sep {
  height: 1px;
  background: var(--fd-border);
  margin: 4px 6px;
}

/* ─── Dimension Tooltip ─── */
#dimension-tooltip {
  display: none;
  position: absolute;
  z-index: 200;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: -0.02em;
  pointer-events: none;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* ─── Modifier Cursors ─── */
#fd-canvas.tool-select { cursor: default; }
#fd-canvas.tool-rect,
#fd-canvas.tool-ellipse { cursor: crosshair; }
#fd-canvas.tool-pen { cursor: crosshair; }
#fd-canvas.tool-text { cursor: text; }
#fd-canvas.tool-eraser { cursor: crosshair; }
#fd-canvas.modifier-cmd { cursor: grab !important; }
#fd-canvas.modifier-alt { cursor: copy !important; }

/* ─── Minimap (Google Maps pill) ─── */
#minimap-container {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 150px;
  height: 100px;
  z-index: 20;
  border-radius: var(--fd-radius);
  overflow: hidden;
  border: 0.5px solid var(--fd-border);
  box-shadow: var(--fd-shadow-md);
  background: var(--fd-surface);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  cursor: pointer;
  transition: opacity 0.2s ease, box-shadow 0.2s ease;
}
#minimap-container:hover { box-shadow: var(--fd-shadow-lg); }
#minimap-canvas {
  display: block;
  width: 100%;
  height: 100%;
}
#minimap-zoom-controls {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  background: var(--fd-surface);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 0.5px solid var(--fd-border);
  border-radius: 8px;
  box-shadow: var(--fd-shadow-sm);
  overflow: hidden;
  z-index: 16;
  pointer-events: auto;
}
#minimap-zoom-controls .bl-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--fd-text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
}
#minimap-zoom-controls .bl-btn:hover {
  background: var(--fd-surface-hover);
  color: var(--fd-text);
}
#minimap-zoom-controls .bl-btn:active {
  background: var(--fd-surface-active);
  transform: scale(0.95);
}
#minimap-zoom-controls #zoom-reset-btn {
  width: auto;
  min-width: 40px;
  padding: 0 4px;
  font-size: 10px;
  font-weight: 600;
  font-family: var(--mono);
}
#minimap-zoom-controls .bl-sep {
  width: 0.5px;
  height: 14px;
  background: var(--fd-border);
}

/* ─── Floating Action Bar (frosted glass) ─── */
#floating-action-bar {
  position: absolute;
  z-index: 900;
  display: none;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(30,30,30,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3), 0 1px 4px rgba(0,0,0,0.2);
  pointer-events: auto;
  transform: translateX(-50%);
  transition: opacity 0.15s ease, top 0.08s ease, left 0.08s ease;
  font-size: 11px;
  color: #ccc;
  white-space: nowrap;
}
#floating-action-bar.visible { display: flex; }
.fab-sep {
  width: 1px;
  height: 18px;
  background: rgba(255,255,255,0.15);
  margin: 0 2px;
}
.fab-color {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.2);
  padding: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}
.fab-color::-webkit-color-swatch-wrapper { padding: 0; }
.fab-color::-webkit-color-swatch { border-radius: 50%; border: none; }
.fab-label {
  font-size: 9px;
  text-transform: uppercase;
  opacity: 0.5;
  letter-spacing: 0.5px;
  margin-right: -2px;
}
.fab-input {
  width: 38px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 4px;
  color: #ddd;
  font-size: 11px;
  padding: 2px 4px;
  text-align: center;
}
.fab-input:focus { border-color: var(--fd-accent); outline: none; }
.fab-slider {
  width: 50px;
  height: 3px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255,255,255,0.15);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.fab-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--fd-accent);
  cursor: pointer;
}
.fab-delete-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  color: #aaa;
  cursor: pointer;
  padding: 3px 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}
.fab-delete-btn:hover {
  background: rgba(255,59,48,0.15);
  border-color: rgba(255,59,48,0.3);
  color: #FF3B30;
}

/* ─── Skeleton Loader ─── */
.canvas-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background: var(--bg-card);
}
.canvas-loading.hidden { display: none; }

.skeleton-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 160px;
}
.skeleton-shape {
  background: linear-gradient(90deg,
    var(--border) 25%,
    var(--bg-card-hover) 50%,
    var(--border) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
.skeleton-rect {
  width: 120px;
  height: 60px;
  border-radius: var(--radius);
}
.skeleton-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  animation-delay: 0.2s;
}
.skeleton-line {
  width: 100%;
  height: 10px;
  border-radius: 5px;
  animation-delay: 0.4s;
}
.skeleton-line-short {
  width: 70%;
  animation-delay: 0.6s;
}
.loading-text {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

@keyframes skeleton-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ─── Features ─── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.feature-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition);
}
.feature-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ─── Modes ─── */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
}
.mode-card {
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition);
}
.mode-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}
.mode-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(108, 92, 231, 0.15);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.mode-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.mode-card p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}
.mode-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mode-list li {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding-left: 20px;
  position: relative;
}
.mode-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ─── Benchmarks ─── */
.benchmark-table-wrap { overflow-x: auto; }
.benchmark-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}
.benchmark-table th, .benchmark-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.benchmark-table thead th {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.benchmark-table tbody tr { transition: background var(--transition); }
.benchmark-table tbody tr:hover { background: var(--bg-card); }
.ratio {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 100px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  font-weight: 700;
  font-family: var(--mono);
  font-size: 0.85rem;
}
.ratio-avg {
  font-size: 1rem;
  background: rgba(108, 92, 231, 0.15);
  color: var(--accent);
}
.benchmark-table tfoot td {
  border-top: 2px solid var(--border);
  font-weight: 700;
}

/* ─── Architecture ─── */
.crate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.crate-card {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-primary);
  transition: all var(--transition);
}
.crate-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-glow);
}
.crate-card h4 {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}
.crate-flow {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.crate-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

/* ─── Editor Table ─── */
.editor-table-wrap { overflow-x: auto; }
.editor-table {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  border-collapse: collapse;
}
.editor-table th, .editor-table td {
  padding: 14px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.editor-table th {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.editor-table td:first-child { text-align: left; font-weight: 500; }

/* ─── CTA ─── */
.cta-container {
  text-align: center;
  max-width: 600px;
}
.cta-container h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.cta-container p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

/* ─── Footer ─── */
#footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}
.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text-primary); }
.footer-copy {
  color: var(--text-muted);
  font-size: 0.85rem;
}
.footer-copy a {
  color: var(--text-secondary);
}

/* ─── Animations ─── */
.animate-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Zen Mode ─── */
.zen-toggle-canvas {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 50;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0.5px solid var(--fd-border);
  border-radius: 8px;
  background: var(--fd-surface);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: var(--fd-text-secondary);
  font-size: 16px;
  line-height: 32px;
  text-align: center;
  cursor: pointer;
  box-shadow: var(--fd-shadow-sm);
  transition: all 0.2s ease;
  opacity: 0.7;
}
.zen-toggle-canvas:hover {
  background: var(--fd-surface-hover);
  color: var(--fd-text);
  box-shadow: var(--fd-shadow-md);
  opacity: 1;
}
.zen-toggle-canvas:active { transform: scale(0.95); }
/* In zen mode: expand to pill with text, high contrast */
.zen-mode .zen-toggle-canvas {
  width: auto;
  height: auto;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  line-height: 1.4;
  opacity: 1;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.2);
}
.zen-mode .playground-toolbar { display: none !important; }
.zen-mode .settings-dropdown-container { display: none !important; }
.zen-mode .playground-editor { display: none !important; }
.zen-mode .playground-split { grid-template-columns: 1fr; }
.zen-mode .split-resize-handle { display: none; }
.zen-mode .playground-canvas { min-height: 500px; }
.zen-mode #floating-toolbar { display: none !important; }
.zen-mode #minimap-container { display: none !important; }

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(20px);
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .mobile-menu-btn { display: flex; }

  #hero {
    padding: 72px 16px 32px;
  }

  .playground-split {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .split-resize-handle { display: none; }
  .playground-editor { min-height: 280px; }
  .playground-canvas { min-height: 320px; }

  .features-grid { grid-template-columns: 1fr; }
  .modes-grid { grid-template-columns: 1fr; }
  .crate-grid { grid-template-columns: 1fr 1fr; }

  #hero h1 { font-size: 2rem; }
  .hero-sub { font-size: 1rem; }

  #layers-panel, #props-panel { display: none !important; }
  #floating-toolbar { left: 8px; }
  #minimap-container { display: none; }
}

@media (max-width: 480px) {
  .crate-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 16px; }
}