Program Curve Pricing

"use client";

import { useEffect, useRef, useState, useSyncExternalStore } from "react";
import type { CSSProperties, KeyboardEvent as ReactKeyboardEvent, ReactNode, RefObject } from "react";

/**
 * ProgramCurvePricing — pricing beside the sunrise programs, with the lamp playing whichever you pick.
 *
 * Choose a program and its curve morphs on a spring while the lamp, rendered
 * live in a dark room, plays that sunrise in six seconds, from an ember to
 * the program's own daylight colour, then holds. The programs are a radio
 * group with arrow keys; the plans sit beside them.
 *
 * Part of the Modern Minimal kit: a paper-white room (#f5f5f2, surfaces
 * #ffffff, ink #141412) and one light, dawn #ffa64d, only ever as light.
 * Two-layer shadows from one light above; scroll binds values directly,
 * with no easing. Inter Tight through var(--font-inter-tight) for display
 * over Geist. Respects prefers-reduced-motion. No dependencies beyond React.

  // ---------------------------------------------------------------
  // Full source available with a viberdy Pro subscription.
  // https://viberdy.dev/pricing
  // ---------------------------------------------------------------
}