/* ==============================================
   Nanazilla.com — Dark Glassmorphism UI
   ============================================== */

/* --- Design Tokens --- */
:root {
  --bg:          #0f172a;
  --bg-subtle:   #1e293b;
  --surface:     rgba(30, 41, 59, 0.55);
  --surface-hi:  rgba(30, 41, 59, 0.8);
  --glass-blur:  16px;
  --glass-border: rgba(99, 102, 241, 0.12);
  --glass-border-hi: rgba(99, 102, 241, 0.25);
  --text:        #e2e8f0;
  --text-muted:  #94a3b8;
  --text-dim:    #64748b;
  --primary:     #6366f1;
  --primary-hi:  #818cf8;
  --primary-glow: rgba(99, 102, 241, 0.25);
  --danger:      #ef4444;
  --danger-bg:   rgba(239, 68, 68, 0.12);
  --success:     #10b981;
  --canvas-bg:   #ffffff;
  --shadow:      0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-sm:   0 2px 8px rgba(0, 0, 0, 0.2);
  --radius:      10px;
  --radius-lg:   14px;
  --radius-sm:   6px;
  --sidebar-w:   240px;
  --panel-w:     220px;
  --topbar-h:    56px;
  --timeline-h:  110px;
  --transition:  0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow: hidden;
  background-image:
    radial-gradient(ellipse at 15% 85%, rgba(99,102,241,0.06) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 15%, rgba(99,102,241,0.04) 0%, transparent 55%);
}
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input[type="range"] { cursor: pointer; }
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-dim); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* --- Glass utility --- */
.glass {
  background: var(--surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

/* ======================
   APP SHELL
   ====================== */
.app {
  display: grid;
  grid-template-rows: var(--topbar-h) 1fr var(--timeline-h);
  height: 100vh;
  gap: 8px;
  padding: 8px;
}

/* --- Top Bar --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.logo-icon {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--primary), var(--primary-hi));
  border-radius: 8px;
  display: grid; place-items: center;
  flex-shrink: 0;
}
.logo-icon svg { width: 18px; height: 18px; color: #fff; }
.brand h1 { font-size: 16px; font-weight: 700; white-space: nowrap; }
.brand .version { font-size: 11px; color: var(--text-dim); margin-left: 6px; }
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}
.separator {
  width: 1px; height: 24px;
  background: var(--glass-border);
  margin: 0 6px;
}

/* ======================
   WORKSPACE (sidebar | canvas | panel)
   ====================== */
.workspace {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  min-height: 0;
  position: relative;
}

/* --- Sidebar --- */
.sidebar {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width var(--transition), padding var(--transition), opacity var(--transition);
  width: var(--sidebar-w);
  padding: 12px;
}
.sidebar.collapsed {
  width: 0;
  padding: 0;
  border-color: transparent;
  opacity: 0;
  pointer-events: none;
}
.sidebar-toggle {
  position: fixed;
  left: calc(var(--sidebar-w) + 16px);
  top: calc(var(--topbar-h) + 20px);
  z-index: 150;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--surface-hi);
  border: 1px solid var(--glass-border);
  display: grid; place-items: center;
  transition: left var(--transition), transform var(--transition);
}
.sidebar-toggle.shifted {
  left: 16px;
}
.sidebar-toggle svg { width: 14px; height: 14px; transition: transform var(--transition); }
.sidebar-toggle.shifted svg { transform: rotate(180deg); }
.sidebar-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
  overflow-x: hidden;
  flex: 1;
  padding-right: 4px;
}
.tool-section { display: flex; flex-direction: column; gap: 8px; }
.section-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

/* Tool buttons grid */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.tool-btn {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 2px;
  padding: 8px 4px;
  border-radius: var(--radius-sm);
  font-size: 10px;
  color: var(--text-muted);
  transition: all var(--transition);
  border: 1px solid transparent;
}
.tool-btn svg { width: 18px; height: 18px; }
.tool-btn:hover {
  background: rgba(99, 102, 241, 0.08);
  color: var(--text);
}
.tool-btn.active {
  background: var(--primary-glow);
  border-color: var(--primary);
  color: var(--primary-hi);
}

/* Controls */
.control-group {
  display: flex; flex-direction: column; gap: 4px;
}
.control-group > label {
  font-size: 11px; color: var(--text-dim); font-weight: 500;
}
.slider-row {
  display: flex; align-items: center; gap: 8px;
}
.slider-row input[type="range"] {
  flex: 1; height: 4px;
  -webkit-appearance: none; appearance: none;
  background: var(--bg-subtle);
  border-radius: 2px;
  outline: none;
}
.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--bg);
  box-shadow: 0 0 6px var(--primary-glow);
  cursor: pointer;
}
.slider-row input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--bg);
  box-shadow: 0 0 6px var(--primary-glow);
  cursor: pointer;
}
.val-display {
  font-size: 11px;
  color: var(--text-muted);
  min-width: 32px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.color-picker-row {
  display: flex; align-items: center; gap: 6px;
}
.color-picker-row input[type="color"] {
  width: 32px; height: 28px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 2px;
  background: transparent;
  cursor: pointer;
}
.hex-input {
  flex: 1;
  background: var(--bg-subtle);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  font-size: 12px;
  font-family: 'Inter', monospace;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition);
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}
.hex-input:focus { border-color: var(--primary); }
.color-swatches {
  display: flex; gap: 4px; flex-wrap: wrap; margin-top: 4px;
}
.swatch {
  width: 20px; height: 20px;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
}
.swatch:hover { transform: scale(1.15); }
.swatch.active { border-color: var(--primary-hi); }
.toggle-label {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--text-muted);
  cursor: pointer;
}
.toggle-label input[type="checkbox"] {
  -webkit-appearance: none; appearance: none;
  width: 32px; height: 18px;
  background: var(--bg-subtle);
  border-radius: 9px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition);
}
.toggle-label input[type="checkbox"]::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: all var(--transition);
}
.toggle-label input[type="checkbox"]:checked {
  background: var(--primary);
}
.toggle-label input[type="checkbox"]:checked::after {
  left: 16px;
  background: #fff;
}

/* ======================
   CANVAS AREA
   ====================== */
.canvas-area {
  display: flex;
  flex-direction: column;
  min-height: 0;
  gap: 6px;
}
.canvas-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 4px 8px;
  flex-shrink: 0;
}
.action-group {
  display: flex; align-items: center; gap: 4px;
  background: var(--surface);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 3px;
}
.canvas-viewport {
  flex: 1;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--canvas-bg);
  border: 1px solid var(--glass-border);
}
.canvas-container {
  position: absolute;
  inset: 0;
}
.canvas-container canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
#bgCanvas   { z-index: 0; pointer-events: none; }
#gridCanvas { z-index: 1; pointer-events: none; }
#onionCanvas{ z-index: 2; pointer-events: none; }
#drawCanvas { z-index: 3; }
.canvas-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4;
  pointer-events: none;
  transition: opacity 0.4s ease;
}
.canvas-hint.hidden { opacity: 0; }
.hint-content { text-align: center; }
.hint-icon { font-size: 36px; margin-bottom: 8px; }
.hint-content h2 { font-size: 18px; font-weight: 600; color: var(--text-muted); margin-bottom: 4px; }
.hint-content p { font-size: 13px; color: var(--text-dim); }

/* ======================
   RIGHT PANEL (Layers + Preview)
   ====================== */
.panel-right {
  display: flex;
  flex-direction: column;
  padding: 12px;
  overflow: hidden;
  gap: 8px;
  width: var(--panel-w);
}
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.panel-header h3 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}
.layers-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow-y: auto;
  flex: 1;
  min-height: 60px;
  max-height: 220px;
}
.layer-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  transition: all var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
}
.layer-item:hover { background: rgba(99,102,241,0.06); }
.layer-item.active {
  background: var(--primary-glow);
  border-color: rgba(99,102,241,0.2);
}
.layer-item .layer-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.layer-item .layer-actions {
  display: flex; gap: 2px; opacity: 0;
  transition: opacity var(--transition);
}
.layer-item:hover .layer-actions { opacity: 1; }
.layer-item button {
  width: 22px; height: 22px;
  border-radius: 4px;
  display: grid; place-items: center;
  font-size: 12px;
  transition: background var(--transition);
}
.layer-item button:hover { background: rgba(255,255,255,0.08); }
.layer-item button.vis-off { opacity: 0.3; }
.layer-type-icon {
  font-size: 10px;
  font-weight: 700;
  opacity: 0.6;
  margin-right: 2px;
  flex-shrink: 0;
  color: var(--primary-hi);
  background: var(--primary-glow);
  padding: 1px 4px;
  border-radius: 3px;
  letter-spacing: 0.03em;
}
.preview-canvas {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  background: var(--canvas-bg);
  aspect-ratio: 16/9;
}
.panel-right.hidden {
  display: none;
}

/* ======================
   TIMELINE
   ====================== */
.timeline {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  overflow: hidden;
}
.timeline-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.btn-play {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--primary);
  display: grid; place-items: center;
  transition: all var(--transition);
  box-shadow: 0 0 12px var(--primary-glow);
}
.btn-play:hover { background: var(--primary-hi); transform: scale(1.05); }
.btn-play.playing { background: var(--danger); box-shadow: 0 0 12px rgba(239,68,68,0.25); }
.btn-play svg { width: 16px; height: 16px; color: #fff; }
.frame-counter {
  font-size: 11px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  min-width: 44px;
  text-align: center;
  margin-left: 4px;
}
.timeline-frames {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  flex: 1;
  padding: 4px 0;
  scroll-behavior: smooth;
}
.timeline-thumb {
  flex-shrink: 0;
  width: 80px; height: 50px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  background: var(--bg-subtle);
}
.timeline-thumb canvas {
  width: 100%; height: 100%;
  display: block;
}
.timeline-thumb:hover { border-color: var(--text-dim); }
.timeline-thumb.active { border-color: var(--primary); box-shadow: 0 0 8px var(--primary-glow); }
.timeline-thumb .thumb-label {
  position: absolute;
  bottom: 2px; left: 0; right: 0;
  text-align: center;
  font-size: 9px;
  color: var(--text-muted);
  text-shadow: 0 1px 3px rgba(0,0,0,0.7);
}
.timeline-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* ======================
   BUTTONS
   ====================== */
.btn-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  transition: all var(--transition);
  color: var(--text-muted);
}
.btn-icon:hover { background: rgba(99,102,241,0.1); color: var(--text); }
.btn-icon.active { color: var(--primary-hi); background: var(--primary-glow); }
.btn-icon svg { width: 18px; height: 18px; }
.btn-icon.sm { width: 30px; height: 30px; }
.btn-icon.sm svg { width: 15px; height: 15px; }
.btn-icon.xs { width: 24px; height: 24px; font-size: 14px; font-weight: 600; }
.btn-sm {
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  background: var(--surface-hi);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  transition: all var(--transition);
}
.btn-sm:hover { background: rgba(99,102,241,0.12); color: var(--text); border-color: var(--glass-border-hi); }
.btn-sm.danger { color: var(--danger); }
.btn-sm.danger:hover { background: var(--danger-bg); }

/* ======================
   MODALS
   ====================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  display: grid; place-items: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--surface-hi);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border-hi);
  border-radius: var(--radius-lg);
  padding: 24px;
  min-width: 340px;
  max-width: 90vw;
  box-shadow: var(--shadow);
  transform: scale(0.95) translateY(8px);
  transition: transform 0.25s ease;
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.modal p { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; line-height: 1.5; }
.modal-actions {
  display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px;
}
.btn-secondary {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  border: 1px solid var(--glass-border);
  font-size: 13px; font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
}
.btn-secondary:hover { color: var(--text); background: var(--surface); }
.btn-danger {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: var(--danger);
  font-size: 13px; font-weight: 600;
  color: #fff;
  transition: all var(--transition);
}
.btn-danger:hover { background: #dc2626; }
.btn-primary {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: var(--primary);
  font-size: 13px; font-weight: 600;
  color: #fff;
  transition: all var(--transition);
}
.btn-primary:hover { background: var(--primary-hi); }

/* Export modal grid */
.export-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}
.export-card {
  display: flex; flex-direction: column;
  align-items: center; gap: 6px;
  padding: 16px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  background: rgba(15,23,42,0.4);
  transition: all var(--transition);
  text-align: center;
}
.export-card:hover {
  border-color: var(--primary);
  background: var(--primary-glow);
}
.export-icon {
  font-size: 14px;
  font-weight: 800;
  color: var(--primary-hi);
  background: var(--primary-glow);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
}
.export-card span { font-size: 12px; font-weight: 600; }
.export-card small { font-size: 10px; color: var(--text-dim); }

/* Shortcuts modal */
.modal.wide { min-width: 480px; }
.shortcuts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 24px;
  margin-top: 12px;
}
.shortcut-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 12px;
}
.shortcut-key {
  background: var(--bg-subtle);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  font-family: 'Inter', monospace;
  color: var(--text-muted);
  border: 1px solid var(--glass-border);
}
.shortcut-desc { color: var(--text-muted); }

/* ======================
   NOTIFICATIONS
   ====================== */
.notification {
  position: fixed;
  top: 16px; right: 16px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 13px; font-weight: 600;
  z-index: 2000;
  box-shadow: var(--shadow);
  animation: notifIn 0.3s ease, notifOut 0.3s ease 1.7s forwards;
  color: #fff;
}
.notification.success { background: var(--success); }
.notification.error { background: var(--danger); }

@keyframes notifIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes notifOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateY(-10px); }
}

/* ======================
   RESPONSIVE
   ====================== */

/* --- Tablet (<= 1100px) --- */
@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  /* Sidebar → fixed overlay */
  .sidebar {
    position: fixed;
    top: calc(var(--topbar-h) + 16px);
    left: 8px;
    bottom: calc(var(--timeline-h) + 16px);
    z-index: 100;
    width: var(--sidebar-w);
    box-shadow: var(--shadow);
    background: var(--surface-hi);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: transform var(--transition), opacity var(--transition);
  }
  .sidebar.collapsed {
    transform: translateX(calc(-1 * var(--sidebar-w) - 20px));
    opacity: 0;
    pointer-events: none;
    width: var(--sidebar-w); /* keep width, just slide off */
  }
  .sidebar-toggle {
    left: calc(var(--sidebar-w) + 16px);
    top: calc(var(--topbar-h) + 16px);
  }
  .sidebar-toggle.shifted {
    left: 8px;
  }

  /* Panel → fixed overlay */
  .panel-right {
    position: fixed;
    top: calc(var(--topbar-h) + 16px);
    right: 8px;
    bottom: calc(var(--timeline-h) + 16px);
    z-index: 100;
    width: var(--panel-w);
    box-shadow: var(--shadow);
    background: var(--surface-hi);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: transform var(--transition), opacity var(--transition);
  }
  .panel-right.hidden {
    transform: translateX(calc(var(--panel-w) + 20px));
    opacity: 0;
    pointer-events: none;
    display: flex; /* override desktop display:none */
  }

  /* Topbar wraps on tablet */
  .topbar {
    flex-wrap: wrap;
    padding: 0 12px;
    gap: 8px;
  }
  .topbar-actions {
    flex-wrap: wrap;
    gap: 2px;
  }
}

/* --- Mobile (<= 640px) --- */
@media (max-width: 640px) {
  :root {
    --sidebar-w: 240px;
    --panel-w: 220px;
    --topbar-h: 48px;
    --timeline-h: auto;
  }
  body { overflow-y: auto; }
  .app {
    padding: 4px;
    gap: 4px;
    height: auto;
    min-height: 100vh;
    grid-template-rows: var(--topbar-h) 1fr auto auto;
    /* topbar | canvas | timeline | panel-right */
  }

  /* Flatten workspace so children participate in .app grid */
  .workspace {
    display: contents;
  }
  .canvas-area {
    grid-row: 2;
    min-height: 55vh;
  }

  .topbar {
    padding: 0 8px;
    gap: 6px;
  }
  .brand h1 { font-size: 13px; }
  .brand .version { display: none; }
  .logo-icon { width: 28px; height: 28px; }
  .logo-icon svg { width: 14px; height: 14px; }
  .separator { display: none; }
  .topbar-actions { gap: 0; }
  .btn-icon { width: 32px; height: 32px; }
  .btn-icon svg { width: 16px; height: 16px; }

  /* Canvas actions compact */
  .canvas-actions { gap: 6px; padding: 2px 4px; }
  .action-group { padding: 2px; }
  .btn-icon.sm { width: 26px; height: 26px; }
  .btn-icon.sm svg { width: 13px; height: 13px; }

  /* Timeline compact */
  .timeline {
    padding: 6px 8px;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    min-height: 80px;
  }
  .timeline-controls { gap: 2px; }
  .btn-play { width: 30px; height: 30px; }
  .btn-play svg { width: 13px; height: 13px; }
  .timeline-thumb { width: 52px; height: 32px; }
  .timeline-actions { gap: 3px; }
  .btn-sm { padding: 4px 8px; font-size: 10px; }
  .frame-counter { font-size: 10px; min-width: 36px; }

  /* Modals full-width */
  .modal { min-width: 0; width: 95vw; padding: 16px; }
  .modal.wide { min-width: 0; }
  .shortcuts-grid { grid-template-columns: 1fr; }
  .export-options { grid-template-columns: 1fr; }

  /* Sidebar stays as fixed overlay */
  .sidebar {
    top: calc(var(--topbar-h) + 8px);
    bottom: 90px;
    left: 4px;
  }
  .sidebar-toggle {
    top: calc(var(--topbar-h) + 8px);
  }
  .sidebar-toggle.shifted { left: 4px; }

  /* Panel-right: inline below timeline, not fixed overlay */
  .panel-right {
    position: static !important;
    grid-row: 4;
    width: 100% !important;
    max-height: none;
    border-radius: var(--radius-lg);
    transform: none !important;
    opacity: 1 !important;
    background: var(--surface);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
  }
  .panel-right.hidden {
    display: none !important;
  }
}

/* --- Very small screens (<= 400px) --- */
@media (max-width: 400px) {
  .canvas-actions .action-group:nth-child(n+3) { display: none; }
}