Switch the vibe — click a chip, or focus it and use the arrow keys.

); } ``` ## Accessibility & performance Honors `prefers-reduced-motion` with a designed static frame or fade (never a blank box) and passes `className` through. ## Source (`vice.tsx`) ```tsx "use client"; import { animate, motion, useMotionValue } from "motion/react"; import * as React from "react"; import { useReducedMotion } from "@/hooks/use-reduced-motion"; import { cn } from "@/lib/utils"; export interface VicePalette { /** Deep panel base — the indigo night behind everything. */ base: string; /** Upper sunset band stop. */ horizon: string; /** Lower sunset band stop, just above the grid. */ horizonLow: string; /** Primary neon — heading glow, filled buttons, the horizon grid. */ primary: string; /** Secondary neon accent — outlines, stat value, tagline glow. */ secondary: string; /** Sun disc top color. */ sun: string; /** Foreground text. */ text: string; /** Muted / secondary text. */ muted: string; } export interface VicePreset { /** Stable id used for controlled selection and React keys. */ id: string; /** Chip label shown in the switcher. */ label: string; /** Token set applied when this preset is active. */ palette: VicePalette; } /** Built-in vibes — a spectrum from balanced magenta/cyan to hot red/amber to cool violet. */ const PRESETS: VicePreset[] = [ { id: "miami", label: "Miami", palette: { base: "#160b2e", horizon: "#ff5db1", horizonLow: "#7d1e9c", primary: "#ff2d95", secondary: "#2de2e6", sun: "#ffcf5c", text: "#f6e9ff", muted: "#b79fd4", }, }, { id: "outrun", label: "Outrun", palette: { base: "#1a0730", horizon: "#ff7a3d", horizonLow: "#a01f7a", primary: "#ff2d55", secondary: "#ffcf3d", sun: "#ff8a3d", text: "#ffeede", muted: "#d09fb0", }, }, { id: "twilight", label: "Twilight", palette: { base: "#0d0322", horizon: "#7b2ff7", horizonLow: "#3a1078", primary: "#b46bff", secondary: "#4cc9f0", sun: "#e05fd6", text: "#ece7ff", muted: "#9d97cf", }, }, ]; export interface ViceProps extends Omit, "onChange"> { /** Controlled active preset id (matches a preset's `id`). */ variant?: string; /** Initial preset id when uncontrolled. @default "miami" (first preset) */ defaultVariant?: string; /** Fires with the next preset id whenever the switcher changes. */ onVariantChange?: (id: string) => void; /** Override the built-in preset set (chips + palettes). @default the three built-in vibes */ presets?: VicePreset[]; /** Token overrides merged over the active preset — makes any palette reachable. */ colors?: Partial; /** Glow-pulse and grid-scroll speed multiplier. @default 1 */ speed?: number; /** Neon glow strength multiplier. @default 1 */ intensity?: number; /** Freeze all animation at the resting neon frame. @default false */ paused?: boolean; /** Small mono label above the heading. @default "TRACK 07" */ tagline?: string; /** Chrome-italic display heading. @default "AFTERGLOW" */ heading?: string; /** Body line under the heading. @default "Neon on deep indigo. Pick a vibe." */ description?: string; /** Stat figure. @default "128" */ statValue?: string; /** Stat unit / label. @default "BPM" */ statLabel?: string; /** Small pill tag. @default "SIDE A" */ tag?: string; /** Filled button label. @default "Play" */ primaryLabel?: string; /** Outline button label. @default "Queue" */ secondaryLabel?: string; /** Accessible label for the panel region. @default "Synthwave theme preset" */ label?: string; /** Accessible label for the switcher group. @default "Theme vibe" */ switcherLabel?: string; } const GRID_CELL = 34; /** * Vice — a self-contained synthwave / retrowave theme preset. A card, buttons, * stat, and tag painted in hot-magenta → cyan neon on deep indigo, with a * sunset gradient, a scanlined sun rising over a perspective grid, and a * chrome-italic display heading. A keyboard-operable radiogroup of vibe chips * re-tokens the whole panel live; the palette is fully exposed via `presets` * and `colors`. Every glow drives off one CSS-variable pulse, so reduced motion * simply pins it to a bold static neon frame — no pulsing, no grid scroll. */ export function Vice({ variant, defaultVariant, onVariantChange, presets, colors, speed = 1, intensity = 1, paused = false, tagline = "TRACK 07", heading = "AFTERGLOW", description = "Neon on deep indigo. Pick a vibe.", statValue = "128", statLabel = "BPM", tag = "SIDE A", primaryLabel = "Play", secondaryLabel = "Queue", label = "Synthwave theme preset", switcherLabel = "Theme vibe", className, style, ...rest }: ViceProps) { const reducedMotion = useReducedMotion(); const list = presets && presets.length > 0 ? presets : PRESETS; const isControlled = variant !== undefined; const [internal, setInternal] = React.useState( defaultVariant ?? list[0].id ); const activeId = isControlled ? variant : internal; const active = list.find((p) => p.id === activeId) ?? list[0]; const t: VicePalette = { ...active.palette, ...colors }; const spd = Math.max(0.1, speed); const amt = Math.max(0, intensity); // One pulse (scaled by intensity) modulates every glow via a CSS variable; // grid scroll is a second variable. Colors live in their own vars so // switching vibes recolors instantly even while the pulse is frozen. Reduced // motion pins the pulse to full intensity — a bold static neon frame. const pulse = useMotionValue(amt); const shift = useMotionValue(0); React.useEffect(() => { if (reducedMotion || paused) { pulse.set(amt); shift.set(0); return; } const p = animate(pulse, [amt, 0.62 * amt, amt], { duration: 3.4 / spd, repeat: Infinity, ease: "easeInOut", }); const g = animate(shift, GRID_CELL, { duration: 2.8 / spd, repeat: Infinity, ease: "linear", }); return () => { p.stop(); g.stop(); }; }, [reducedMotion, paused, spd, amt, pulse, shift]); const activeIdx = Math.max( 0, list.findIndex((p) => p.id === activeId) ); const chipRefs = React.useRef<(HTMLButtonElement | null)[]>([]); const select = React.useCallback( (i: number) => { const next = list[i]; if (!next) return; if (!isControlled) setInternal(next.id); onVariantChange?.(next.id); }, [list, isControlled, onVariantChange] ); const onSwitcherKey = React.useCallback( (e: React.KeyboardEvent) => { let next = activeIdx; switch (e.key) { case "ArrowRight": case "ArrowDown": next = (activeIdx + 1) % list.length; break; case "ArrowLeft": case "ArrowUp": next = (activeIdx - 1 + list.length) % list.length; break; case "Home": next = 0; break; case "End": next = list.length - 1; break; default: return; } e.preventDefault(); select(next); chipRefs.current[next]?.focus(); }, [activeIdx, list, select] ); // Colors are plain CSS vars (recolor instantly on switch); --vpulse and // --vshift are motion values, so this element must be a motion component. const vars = { "--vp": t.primary, "--vs": t.secondary, "--vbase": t.base, "--vhorizon": t.horizon, "--vhorizonlow": t.horizonLow, "--vsun": t.sun, "--vtext": t.text, "--vmuted": t.muted, "--vpulse": pulse, "--vshift": shift, background: "var(--vbase)", } as React.CSSProperties; const focusRing = "outline-none focus-visible:ring-2 focus-visible:ring-[color:var(--vs)] focus-visible:ring-offset-2 focus-visible:ring-offset-[color:var(--vbase)]"; return (

{/* Hero sky — sunset, scanlined sun, perspective grid. Decorative. */}

{/* Sun */}

{/* Perspective grid */} {/* Blend the hero into the base so content stays legible. */}

{/* Content */}

{tagline}

{heading}

{description}

{/* Stat + tag */}

{statValue} {statLabel}

{tag}

{/* Buttons */}

{/* Vibe switcher — a real radiogroup with roving focus. */}

{list.map((p, i) => { const selected = p.id === active.id; return ( ); })}

{/* Neon border ring — pulses with everything else. */}

); } ```