--font-sans: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont,
  'SF Pro Text', 'Segoe UI', sans-serif;

import { MenuHoverIcon } from '@/components/icons/hover';

// Wrap parent in group class for hover trigger
<button className="group">
  <MenuHoverIcon width={16} height={16} />
</button>

<button class="btn btn-primary">Save Changes</button>
<button class="btn btn-primary btn-sm">Small</button>
<button class="btn btn-primary" disabled>Disabled</button>

.input {
  padding: 12px 14px;
  font-size: 15px;
  background: var(--bg-surface-soft);
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: 10px;
  transition: all 200ms;
}

.input:focus {
  border-color: #2563eb;
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* Blade Panel */
w-[min(720px,94vw)]
bg-bg-surface
border-l border-border-soft
rounded-l-[28px]
shadow-[-20px_0_44px_rgba(12,18,30,0.35)]
animate-[slideIn_0.22s_ease-out]

/* Mobile: Full width, no radius */
max-[640px]:w-full
max-[640px]:rounded-none

/* Blade overlay - darker */
bg-black/50

/* Modal overlay - lighter */
bg-slate-900/30 backdrop-blur-sm

<!-- Use src/components/settings/Accordion.tsx -->
<Accordion title="Section title" defaultOpen={false} description="Optional subtext">
  {children}
</Accordion>

<!-- Use WorkspaceFiltersAccordion -->
<WorkspaceFiltersAccordion
  title="Filters"
  summary="Last 30 days · 3 metrics"
  sections={filterSections}
  defaultOpen={false}
/>

/* States: .completed, .active, (default = upcoming) */
.ds-stepper-item.completed .ds-stepper-dot { /* checkmark, green */ }
.ds-stepper-item.active .ds-stepper-dot { /* accent, current */ }
/* Connector line turns accent when preceding step completed */

<!-- WhitelabelChatApp: AccordionItem -->
<AccordionItem title="Phase name" isPhase={true}>
  {phase.steps.map(step => <StepRow key={step.id} {...step} />)}
</AccordionItem>

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--border-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.skeleton {
  background: linear-gradient(90deg, 
    var(--bg-surface-soft) 0%, 
    var(--bg-surface) 50%, 
    var(--bg-surface-soft) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: 4px;
}

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

.toast {
  min-width: 260px;
  max-width: 360px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-soft);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.35);
  font-size: 13px;
}

.toast.success { border-color: #16a34a; }
.toast.error { border-color: #dc2626; }
.toast.info { border-color: #2563eb; }

<div class="input-group">
  <label class="input-label">Email</label>
  <input 
    type="email" 
    class="input input--error"
    aria-invalid="true"
    aria-describedby="email-error"
  />
  <p id="email-error" class="field-error">
    Please enter a valid email
  </p>
</div>

.focusable:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--accent), 
              0 0 0 4px rgba(199, 240, 39, 0.3);
}

// Escape key handler for modals
useEffect(() => {
  const handleEscape = (e) => {
    if (e.key === 'Escape') onClose();
  };
  document.addEventListener('keydown', handleEscape);
  return () => document.removeEventListener('keydown', handleEscape);
}, [onClose]);

/* Mobile-first (min-width) */
@media (min-width: 768px) { /* md and up */ }
@media (min-width: 960px) { /* lg and up */ }

/* Desktop-first (max-width) */
@media (max-width: 767px) { /* below md */ }
@media (max-width: 639px) { /* mobile only */ }

<!-- Mobile: full width, Desktop: 1/3 width -->
<div class="w-full md:w-1/3">

<!-- Hide on mobile -->
<div class="hidden md:block">

<!-- Mobile-only -->
<div class="block md:hidden">

:root {
  /* Layout */
  --left-width: 260px;
  --right-width: 360px;
  --divider-width: 10px;
  --min-panel-width: 180px;

  /* Backgrounds */
  --bg-app: #f3f4f6;
  --bg-sidebar: #05060b;
  --bg-surface: #ffffff;
  --bg-surface-soft: #f9fafb;

  /* Borders */
  --border-soft: #e5e7eb;
  --border-strong: #111827;

  /* Accent */
  --accent: #C7F027;
  --accent-soft: #f8ffbf;

  /* Text */
  --text-main: #111827;
  --text-muted: #6b7280;
  --text-on-dark: #f9fafb;
  --text-on-accent: #0f172a;

  /* Status */
  --color-success: #22c55e;
  --color-error: #ef4444;
  --color-warning: #f97316;
  --color-info: #3b82f6;

  /* Font */
  --font-sans: 'Manrope', system-ui, -apple-system, 
    BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', sans-serif;
}