All files / web/src/components HeroAbacus.tsx

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'use client'

import { useEffect, useRef } from 'react'
import { AbacusReact, useAbacusConfig, ABACUS_THEMES } from '@soroban/abacus-react'
import { css } from '../../styled-system/css'
import { useHomeHero } from '../contexts/HomeHeroContext'

export function HeroAbacus() {
  const {
    subtitle,
    abacusValue,
    setAbacusValue,
    setIsHeroVisible,
    isAbacusLoaded,
    isSubtitleLoaded,
  } = useHomeHero()
  const appConfig = useAbacusConfig()
  const heroRef = useRef<HTMLDivElement>(null)

  // Use theme preset from abacus-react instead of manual definition
  const structuralStyles = ABACUS_THEMES.light

  // Detect when hero scrolls out of view
  useEffect(() => {
    if (!heroRef.current) return

    const observer = new IntersectionObserver(
      ([entry]) => {
        // Hero is visible if more than 20% is in viewport
        setIsHeroVisible(entry.intersectionRatio > 0.2)
      },
      {
        threshold: [0, 0.2, 0.5, 1],
      }
    )

    observer.observe(heroRef.current)

    return () => observer.disconnect()
  }, [setIsHeroVisible])

  return (
    <div
      ref={heroRef}
      className={css({
        height: '100vh',
        display: 'flex',
        flexDirection: 'column',
        alignItems: 'center',
        justifyContent: 'space-between',
        bg: 'gray.900',
        position: 'relative',
        overflow: 'hidden',
        px: '4',
        py: '12',
      })}
    >
      {/* Background pattern */}
      <div
        className={css({
          position: 'absolute',
          inset: 0,
          opacity: 0.1,
          backgroundImage:
            'radial-gradient(circle at 2px 2px, rgba(255, 255, 255, 0.15) 1px, transparent 0)',
          backgroundSize: '40px 40px',
        })}
      />

      {/* Title and Subtitle Section - DIRECT CHILD */}
      <div
        className={css({
          position: 'relative',
          display: 'flex',
          flexDirection: 'column',
          alignItems: 'center',
          gap: '2',
          zIndex: 10,
        })}
      >
        <h1
          className={css({
            fontSize: { base: '4xl', md: '6xl', lg: '7xl' },
            fontWeight: 'bold',
            background: 'linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #fbbf24 100%)',
            backgroundClip: 'text',
            color: 'transparent',
          })}
        >
          Abaci One
        </h1>
        <p
          className={css({
            fontSize: { base: 'xl', md: '2xl' },
            fontWeight: 'medium',
            color: 'purple.300',
            fontStyle: 'italic',
            marginBottom: '8',
            opacity: isSubtitleLoaded ? 1 : 0,
            transition: 'opacity 0.5s ease-in-out',
          })}
        >
          {subtitle.text}
        </p>
      </div>

      {/* Large Interactive Abacus - DIRECT CHILD */}
      <div
        className={css({
          position: 'relative',
          display: 'flex',
          alignItems: 'center',
          justifyContent: 'center',
          flex: '1',
          width: '100%',
          zIndex: 10,
          opacity: isAbacusLoaded ? 1 : 0,
          transition: 'opacity 0.5s ease-in-out',
        })}
      >
        <div
          className={css({
            transform: {
              base: 'scale(3.5)',
              md: 'scale(3.5)',
              lg: 'scale(4.25)',
            },
            transformOrigin: 'center center',
            transition: 'all 0.5s cubic-bezier(0.4, 0, 0.2, 1)',
          })}
        >
          <AbacusReact
            value={abacusValue}
            columns={4}
            beadShape={appConfig.beadShape}
            showNumbers={true}
            interactive={true}
            animated={true}
            customStyles={structuralStyles}
            onValueChange={(v) => setAbacusValue(Number(v))}
          />
        </div>
      </div>

      {/* Subtle hint to scroll - DIRECT CHILD */}
      <div
        className={css({
          position: 'relative',
          fontSize: 'sm',
          color: 'gray.400',
          display: 'flex',
          flexDirection: 'column',
          alignItems: 'center',
          gap: '2',
          animation: 'bounce 2s ease-in-out infinite',
          zIndex: 10,
        })}
      >
        <span>Scroll to explore</span>
        <span>↓</span>
      </div>

      {/* Keyframes for bounce animation */}
      <style
        dangerouslySetInnerHTML={{
          __html: `
            @keyframes bounce {
              0%, 100% {
                transform: translateY(0);
                opacity: 0.7;
              }
              50% {
                transform: translateY(-10px);
                opacity: 1;
              }
            }
          `,
        }}
      />
    </div>
  )
}