/* ==========================================================================
   Navascuevas Temp Email - Modern Mobile-Responsive Dark/Light Theme System
   ========================================================================== */

:root {
  /* Common System Design Tokens */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.25);

  /* Primary Accent Palette */
  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.35);
  
  --success: #10b981;
  --success-hover: #059669;
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-hover: #dc2626;
}

/* Dark Mode Tokens (DEFAULT) */
[data-theme="dark"] {
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --surface-glass: rgba(15, 23, 42, 0.85);
  --surface-card: #1e293b;
  --surface-hover: #334155;
  
  --border-color: rgba(255, 255, 255, 0.12);
  --border-active: rgba(99, 102, 241, 0.7);
  
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  
  --input-bg: #111827;
  --code-bg: #0b0f19;
  --viewer-bg: #0f172a;
  --code-banner-bg: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(99, 102, 241, 0.15));
  --code-banner-border: rgba(16, 185, 129, 0.4);
}

/* Light Mode Tokens */
[data-theme="light"] {
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.9);
  --surface-card: #ffffff;
  --surface-hover: #f8fafc;
  
  --border-color: #cbd5e1;
  --border-active: #6366f1;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --input-bg: #f8fafc;
  --code-bg: #f8fafc;
  --viewer-bg: #ffffff;
  --code-banner-bg: linear-gradient(135deg, #ecfdf5, #eef2ff);
  --code-banner-border: #10b981;
}

/* Base Reset & Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  -webkit-tap-highlight-color: transparent;
}

/* Security Auth Overlay Gate */
.auth-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(9, 13, 22, 0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.auth-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border-active);
}

.auth-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--accent-glow);
  color: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  border: 1px solid var(--border-active);
}

.auth-card h2 {
  font-size: 1.6rem;
  font-weight: 700;
}

.auth-card p {
  color: var(--text-secondary);
  font-size: 0.925rem;
}

.auth-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 0.5rem;
}

.input-field-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.input-icon {
  position: absolute;
  left: 1.25rem;
  color: var(--text-muted);
  font-size: 1rem;
}

.auth-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem 0.85rem 3rem;
  color: var(--text-primary) !important;
  font-family: var(--font-sans);
  font-size: 1rem;
  outline: none;
  transition: all var(--transition-fast);
}

.auth-input:focus {
  border-color: var(--border-active);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.btn-block {
  width: 100%;
}

.auth-error-msg {
  color: var(--danger);
  font-size: 0.85rem;
  font-weight: 500;
  min-height: 1.25rem;
}

/* App Container */
.app-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  gap: 1.5rem;
  transition: filter 0.3s ease;
}

/* Glassmorphism Panel Utility */
.glass-panel {
  background: var(--surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.logo-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.brand-text h1 {
  font-size: 1.35rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.02em;
}

.brand-badge {
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--accent-glow);
  color: var(--accent-light);
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-active);
  text-transform: uppercase;
}

.domain-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface-card);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
  font-size: 0.825rem;
  color: var(--text-secondary);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Address Card */
.address-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mode-tabs {
  display: flex;
  gap: 0.5rem;
  background: var(--bg-primary);
  padding: 0.35rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  width: fit-content;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  min-height: 40px;
}

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

.tab-btn.active {
  background: var(--surface-card);
  color: var(--accent-light);
  box-shadow: var(--shadow-sm);
}

/* Address Controls */
.mode-view {
  display: none;
}

.mode-view.active {
  display: block;
}

.email-input-group {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.custom-input-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding-right: 1.25rem;
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
}

.custom-input-wrapper:focus-within {
  border-color: var(--border-active);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.custom-input-wrapper .email-display-input {
  border: none !important;
  box-shadow: none !important;
  background: transparent !important;
  outline: none !important;
}

.domain-suffix {
  font-family: var(--font-mono);
  color: var(--accent-light);
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
  user-select: none;
}

.email-display-input {
  flex: 1;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  color: var(--text-primary) !important;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  outline: none;
  transition: all var(--transition-fast);
  min-height: 48px;
}

.email-display-input:focus {
  border-color: var(--border-active);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Override Browser Autofill White Background */
input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
  -webkit-text-fill-color: var(--text-primary) !important;
  -webkit-box-shadow: 0 0 0px 1000px var(--input-bg) inset !important;
  transition: background-color 5000s ease-in-out 0s;
}

/* Buttons */
.btn {
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 48px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-primary-hover));
  color: #ffffff;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--accent-glow);
}

.btn-secondary {
  background: var(--surface-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--border-active);
}

.btn-success {
  background: var(--success);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
}

.btn-success:hover {
  background: var(--success-hover);
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--danger);
  color: #ffffff;
}

.btn-danger:hover {
  background: var(--danger-hover);
}

.btn-sm {
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  min-height: 38px;
}

.btn-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  color: var(--text-primary);
  border-color: var(--border-active);
  background: var(--surface-hover);
}

.btn-icon.danger:hover {
  color: var(--danger);
  border-color: var(--danger);
}

.btn-icon-xs {
  background: transparent;
  border: none;
  color: var(--accent-light);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  margin-left: 0.25rem;
}

.btn-icon-xs:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}

/* Lifecycle Progress */
.lifecycle-bar-container {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.lifecycle-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.825rem;
  color: var(--text-secondary);
}

.lifecycle-progress {
  height: 4px;
  background: var(--bg-primary);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--success));
  transition: width 1s linear;
}

/* Workspace Grid */
.workspace-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 1.5rem;
  flex: 1;
}

/* Inbox Panel */
.inbox-panel {
  display: flex;
  flex-direction: column;
  min-height: 600px;
  max-height: 800px;
}

.panel-header {
  padding: 1.25rem 1.25rem 0.75rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.panel-title h2 {
  font-size: 1.15rem;
  font-weight: 600;
}

.count-badge {
  background: var(--accent-primary);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.1rem 0.55rem;
  border-radius: var(--radius-pill);
}

.panel-actions {
  display: flex;
  gap: 0.5rem;
}

.poll-indicator-container {
  height: 2px;
  background: transparent;
  overflow: hidden;
}

.poll-progress {
  height: 100%;
  width: 0%;
  background: var(--accent-primary);
  transition: width 0.2s ease;
}

.inbox-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

/* Inbox Item */
.inbox-item {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: background var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.inbox-item:hover {
  background: var(--surface-hover);
}

.inbox-item.active {
  background: var(--surface-hover);
  border-left: 4px solid var(--accent-primary);
}

.inbox-item-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.inbox-sender {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

.inbox-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

.inbox-subject {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.inbox-snippet {
  font-size: 0.8rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Empty Inbox State */
.empty-inbox {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  gap: 1rem;
}

.radar-spinner {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px dashed var(--accent-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent-primary);
  animation: spin 8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Viewer Panel */
.viewer-panel {
  display: flex;
  flex-direction: column;
  min-height: 600px;
  max-height: 850px;
}

.empty-viewer {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 3rem;
  text-align: center;
  color: var(--text-muted);
  gap: 1rem;
}

.empty-illustration {
  font-size: 3.5rem;
  color: var(--text-muted);
  opacity: 0.5;
}

.email-viewer {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.5rem;
  gap: 1rem;
  overflow: hidden;
  box-sizing: border-box;
}

.email-viewer.hidden {
  display: none;
}

/* Mobile Back Bar */
.mobile-nav-bar {
  display: none;
  margin-bottom: 0.25rem;
}

.mobile-back-btn {
  width: 100%;
  justify-content: flex-start;
  background: var(--surface-card);
  border: 1px solid var(--border-color);
}

/* Extracted Verification Code Banner */
.code-banner {
  background: var(--code-banner-bg);
  border: 1px solid var(--code-banner-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.15);
  animation: slideDown 0.3s ease forwards;
  flex-shrink: 0;
}

.code-banner.hidden {
  display: none;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.code-banner-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.code-banner-title {
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--success);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.extracted-code {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}

.viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-shrink: 0;
}

.view-subject {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.3;
}

.viewer-toolbar {
  display: flex;
  gap: 0.5rem;
}

.meta-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.meta-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.meta-label {
  color: var(--text-muted);
  width: 50px;
  font-weight: 500;
}

.meta-value {
  color: var(--text-primary);
  word-break: break-all;
}

.font-mono {
  font-family: var(--font-mono);
}

.content-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.content-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.5rem 1rem;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

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

/* Seamless Email Reader Container */
.view-body-wrapper {
  flex: 1 1 auto;
  min-height: 280px;
  background: var(--viewer-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

.body-view {
  display: none;
  width: 100%;
  height: 100%;
  flex: 1;
}

.body-view.active {
  display: flex;
  flex-direction: column;
}

#emailFrame {
  width: 100%;
  height: 100%;
  flex: 1;
  min-height: 280px;
  border: none;
  background: transparent;
}

.text-body-pre, .raw-body-pre {
  padding: 1.25rem;
  height: 100%;
  flex: 1;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  white-space: pre-wrap;
  word-break: break-word;
  background: var(--viewer-bg);
  color: var(--text-primary);
}

/* Footer */
.app-footer {
  text-align: center;
  font-size: 0.825rem;
  color: var(--text-muted);
  padding: 1rem 0 0 0;
}

/* Toast Container */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 9999;
}

.toast {
  background: var(--surface-card);
  color: var(--text-primary);
  border: 1px solid var(--border-active);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideUp 0.3s ease forwards;
}

.toast.success i { color: var(--success); }
.toast.danger i { color: var(--danger); }
.toast.info i { color: var(--accent-light); }

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ==========================================================================
   Mobile & Responsive Breakpoints
   ========================================================================== */

/* Tablet & Mobile Layout (< 840px) */
@media (max-width: 840px) {
  .app-container {
    padding: 1rem;
    gap: 1rem;
  }

  .brand-text h1 {
    font-size: 1.15rem;
  }

  .status-text {
    display: none;
  }

  .status-indicator {
    padding: 0.4rem;
  }

  .workspace-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .inbox-panel {
    min-height: 480px;
    max-height: none;
  }

  .viewer-panel {
    min-height: 480px;
    max-height: none;
  }

  .mobile-nav-bar {
    display: block;
  }

  /* Split View on Mobile: Show Inbox by default, show Viewer when email is open */
  .workspace-grid.mobile-view-inbox #viewerPanel {
    display: none;
  }

  .workspace-grid.mobile-view-viewer #inboxPanel {
    display: none;
  }

  .workspace-grid.mobile-view-viewer #viewerPanel {
    display: flex;
  }
}

/* Mobile Phones (< 600px) */
@media (max-width: 600px) {
  .app-header {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .mode-tabs {
    width: 100%;
  }

  .tab-btn {
    flex: 1;
    justify-content: center;
    font-size: 0.825rem;
    padding: 0.5rem;
  }

  .email-input-group {
    flex-direction: column;
    align-items: stretch;
  }

  .custom-input-wrapper {
    width: 100%;
  }

  .domain-suffix {
    font-size: 0.85rem;
  }

  .email-display-input {
    font-size: 0.95rem;
    padding: 0.75rem 1rem;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .viewer-header {
    flex-direction: column;
    align-items: stretch;
  }

  .viewer-toolbar {
    width: 100%;
  }

  .viewer-toolbar .btn {
    flex: 1;
  }

  .code-banner {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .extracted-code {
    font-size: 1.35rem;
  }

  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }

  .toast {
    width: 100%;
  }
}