/* ==========================================================================
   MONOCHROME DESIGN SYSTEM - BLACK & WHITE ONLY
   ========================================================================== */

:root {
  --bg-primary: #000000;
  --bg-surface: #0a0a0a;
  --bg-card: #121212;
  --bg-card-hover: #1a1a1a;
  --bg-active: #222222;

  --border-subtle: #1e1e1e;
  --border-medium: #2a2a2a;
  --border-strong: #404040;
  --border-white: #ffffff;

  --text-primary: #ffffff;
  --text-secondary: #a3a3a3;
  --text-muted: #666666;

  --accent-white: #ffffff;
  --accent-black: #000000;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Geist", "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "Geist Mono", "SF Mono", Menlo, Consolas, Monaco, monospace;

  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button, input, select {
  font-family: inherit;
  color: inherit;
}

/* Layout Shell */
.app-container {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background-color: var(--bg-primary);
}

/* Header */
.app-header {
  height: 64px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  flex-shrink: 0;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 32px;
  height: 32px;
  background: #ffffff;
  color: #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -1px;
}

.brand-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
  text-transform: uppercase;
}

.brand-badge {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  background: transparent;
  color: var(--text-primary);
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: #ffffff;
  color: #000000;
  font-weight: 600;
}

.btn-primary:hover {
  background: #e5e5e5;
}

.btn-outline {
  border-color: var(--border-medium);
  background: var(--bg-surface);
  color: var(--text-primary);
}

.btn-outline:hover {
  background: var(--bg-card);
  border-color: var(--border-strong);
}

.btn-ghost {
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

/* App Main Body */
.app-body {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* Sidebar Controls */
.sidebar {
  width: 380px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 10;
}

.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  padding: 8px 16px 0;
  gap: 6px;
  background: var(--bg-surface);
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--text-primary);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Control Sections */
.control-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.section-hint {
  font-size: 11px;
  color: var(--text-muted);
}

/* Layout Grid / Cards */
.layout-presets-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.preset-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
  position: relative;
}

.preset-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-medium);
}

.preset-card.active {
  background: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

.preset-card.active .preset-name,
.preset-card.active .preset-desc,
.preset-card.active i {
  color: #000000 !important;
}

.preset-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 8px;
}

.preset-icon {
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
}

.preset-tag {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-medium);
  color: var(--text-muted);
}

.preset-card.active .preset-tag {
  border-color: #000000;
  color: #000000;
}

.preset-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.preset-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.3;
}

/* Aspect Ratio Grid */
.aspect-ratios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.aspect-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 8px;
  gap: 6px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.aspect-btn:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
}

.aspect-btn.active {
  background: #ffffff;
  color: #000000;
  border-color: #ffffff;
}

.aspect-btn.active span,
.aspect-btn.active i {
  color: #000000 !important;
}

.aspect-ratio-box {
  width: 24px;
  height: 24px;
  border: 1.5px solid currentColor;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.aspect-ratio-label {
  font-size: 11px;
  font-weight: 500;
  text-align: center;
}

/* Slider Controls */
.control-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 6px;
}

.control-label-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.control-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.control-value {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.slider-input {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border-strong);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid #000000;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Segmented Toggles */
.segmented-control {
  display: flex;
  background: var(--bg-card);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  gap: 4px;
}

.segmented-btn {
  flex: 1;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.segmented-btn:hover {
  color: var(--text-primary);
}

.segmented-btn.active {
  background: #ffffff;
  color: #000000;
  font-weight: 600;
}

/* Main Canvas Workspace */
.canvas-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  background-color: #080808;
}

.canvas-viewport {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 32px;
  background-image: 
    radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

.canvas-wrapper {
  position: relative;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s ease-out;
}

#collage-canvas {
  display: block;
  user-select: none;
  touch-action: none;
}

/* Floating Cell Actions Pill */
.cell-overlay-toolbar {
  position: absolute;
  background: #ffffff;
  color: #000000;
  border-radius: var(--radius-full);
  padding: 4px 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(0,0,0,0.1);
  z-index: 50;
  pointer-events: auto;
  user-select: none;
  animation: fadeIn 0.15s ease-out;
}

.cell-overlay-toolbar .overlay-btn {
  background: transparent;
  border: none;
  color: #000000;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.cell-overlay-toolbar .overlay-btn:hover {
  background: rgba(0, 0, 0, 0.1);
}

.cell-overlay-toolbar .overlay-divider {
  width: 1px;
  height: 16px;
  background: rgba(0, 0, 0, 0.15);
  margin: 0 2px;
}

/* Floating Stage Controls (Zoom, Reset, Instructions) */
.stage-floating-bar {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(18, 18, 18, 0.85);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-secondary);
  z-index: 15;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.stage-floating-bar span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.stage-floating-bar kbd {
  background: #2a2a2a;
  color: #ffffff;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
}

/* Bottom Photos Drawer */
.bottom-drawer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 15;
  transition: all var(--transition-normal);
}

.drawer-header {
  height: 44px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  user-select: none;
}

.drawer-header:hover {
  background: var(--bg-card);
}

.drawer-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.drawer-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.photo-counter {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 2px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
}

.drawer-content {
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  overflow-x: auto;
  min-height: 110px;
}

.drawer-collapsed .drawer-content {
  display: none;
}

/* Photo Thumbnail Cards */
.photo-thumb-card {
  width: 76px;
  height: 76px;
  border-radius: var(--radius-sm);
  position: relative;
  flex-shrink: 0;
  overflow: hidden;
  border: 1px solid var(--border-medium);
  background: #000000;
  cursor: grab;
  transition: all var(--transition-fast);
}

.photo-thumb-card:hover {
  border-color: #ffffff;
  transform: translateY(-2px);
}

.photo-thumb-card.active {
  border-color: #ffffff;
  box-shadow: 0 0 0 2px #ffffff;
}

.photo-thumb-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.photo-thumb-card .btn-remove-thumb {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.8);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.photo-thumb-card:hover .btn-remove-thumb {
  opacity: 1;
}

.photo-thumb-card .btn-remove-thumb:hover {
  background: #ffffff;
  color: #000000;
}

.photo-thumb-card .thumb-badge {
  position: absolute;
  bottom: 4px;
  left: 4px;
  background: rgba(0, 0, 0, 0.7);
  color: #ffffff;
  font-size: 9px;
  font-family: var(--font-mono);
  padding: 1px 4px;
  border-radius: 3px;
}

/* Upload Add Drop Card */
.add-thumb-card {
  width: 76px;
  height: 76px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-strong);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: var(--text-secondary);
  cursor: pointer;
  flex-shrink: 0;
  background: var(--bg-card);
  transition: all var(--transition-fast);
}

.add-thumb-card:hover {
  border-color: #ffffff;
  color: #ffffff;
  background: var(--bg-card-hover);
}

.add-thumb-card span {
  font-size: 10px;
  font-weight: 500;
}

/* Fullscreen Drag & Drop Overlay */
.dropzone-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border: 3px dashed #ffffff;
  margin: 16px;
  border-radius: var(--radius-lg);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.dropzone-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.dropzone-overlay h2 {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.dropzone-overlay p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(12px);
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  transform: translateY(8px);
  transition: transform var(--transition-fast);
}

.modal-backdrop.open .modal-dialog {
  transform: translateY(0);
}

.modal-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal-footer {
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

/* Toast System */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 200;
  pointer-events: none;
}

.toast {
  background: #ffffff;
  color: #000000;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  pointer-events: auto;
  animation: slideUp 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 380px;
}

.toast.toast-error {
  background: #ffffff;
  border: 1px solid #000000;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translate(-50%, -90%); }
  to { opacity: 1; transform: translate(-50%, -100%); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hidden elements */
.hidden {
  display: none !important;
}

/* Mobile Tab & Sheet Toggle Defaults */
.mobile-only-tab {
  display: none;
}

.mobile-sheet-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.mobile-sheet-toggle:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.mobile-photos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 10px;
  padding: 4px 0;
}

/* ==========================================================================
   MOBILE & TABLET RESPONSIVE SYSTEM (< 900px)
   ========================================================================== */

@media (max-width: 900px) {
  .app-header {
    height: 56px;
    padding: 0 14px;
  }

  .brand-badge {
    display: none;
  }

  .brand-title {
    font-size: 15px;
  }

  .brand-logo {
    width: 28px;
    height: 28px;
    font-size: 14px;
  }

  .header-actions {
    gap: 6px;
  }

  .header-actions .btn {
    padding: 6px 10px;
    font-size: 12px;
  }

  /* Workspace Stack */
  .app-body {
    flex-direction: column;
    overflow: hidden;
  }

  /* Canvas Stage takes top primary view */
  .canvas-stage {
    flex: 1;
    min-height: 42vh;
    order: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  .canvas-viewport {
    padding: 16px 12px;
    flex: 1;
  }

  /* Hide desktop keyboard hints on mobile to give maximum room */
  .stage-floating-bar {
    display: none;
  }

  /* Sidebar transforms into bottom mobile drawer / sheet */
  .sidebar {
    order: 2;
    width: 100%;
    height: 48vh;
    max-height: 52vh;
    border-right: none;
    border-top: 1px solid var(--border-subtle);
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.7);
    transition: height 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
  }

  .sidebar.sheet-collapsed {
    height: 46px !important;
    overflow: hidden;
  }

  .sidebar.sheet-collapsed .sidebar-content {
    display: none !important;
  }

  .sidebar-tabs {
    padding: 4px 8px 0;
    gap: 4px;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    flex-shrink: 0;
    align-items: center;
  }

  .sidebar-tabs::-webkit-scrollbar {
    display: none;
  }

  .tab-btn {
    padding: 8px 10px;
    font-size: 12px;
    white-space: nowrap;
    gap: 6px;
  }

  .mobile-only-tab {
    display: flex;
  }

  .mobile-sheet-toggle {
    display: flex;
  }

  .sidebar-content {
    padding: 16px 14px;
    gap: 20px;
    flex: 1;
    overflow-y: auto;
  }

  /* Hide bottom tray on mobile because mobile sheet 4th tab handles it */
  .bottom-drawer {
    display: none !important;
  }

  /* Overlay toolbar for mobile */
  .cell-overlay-toolbar {
    padding: 6px 10px;
    gap: 6px;
  }

  .cell-overlay-toolbar .overlay-btn {
    width: 34px;
    height: 34px;
  }

  /* Presets grid */
  .layout-presets-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .preset-card {
    padding: 10px;
  }

  .preset-name {
    font-size: 12px;
  }

  .preset-desc {
    display: none; /* Keep mobile cards sleek and compact */
  }

  .aspect-ratios-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }

  /* Export modal mobile */
  .modal-dialog {
    max-width: 95vw;
    margin: 12px;
    max-height: 90vh;
  }

  .modal-body {
    padding: 18px 14px;
    gap: 16px;
  }

  .modal-footer {
    padding: 12px 14px;
    flex-direction: column-reverse;
    gap: 8px;
  }

  .modal-footer .btn {
    width: 100%;
  }

  /* Toast mobile positioning */
  .toast-container {
    bottom: 60px;
    right: 14px;
    left: 14px;
  }

  .toast {
    max-width: 100%;
  }
}

@media (max-width: 520px) {
  .btn-text {
    display: none;
  }

  .header-actions .btn {
    padding: 6px 8px;
  }

  .brand-title {
    font-size: 14px;
    letter-spacing: -0.3px;
  }

  .tab-btn span {
    font-size: 11px;
  }

  .tab-btn {
    padding: 8px 6px;
  }
}