CheckList list

---
interface Props {
  eyebrow?: string;
  headline?: string;
  sub?: string;
  items: {
    title: string;
    description?: string;
  }[];
  columns?: 1 | 2;
  variant?: 'check' | 'accent' | 'numbered';
  ctaLabel?: string;
  ctaHref?: string;
}

const {
  eyebrow,
  headline,
  sub,
  items = [],
  columns = 1,
  variant = 'check',
  ctaLabel,
  ctaHref,
} = Astro.props;

const checkSVG = `<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg" aria-hidden="true"><path d="M3 8.5L6.5 12L13 5" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>`;
---

<section class={`chl__section chl__cols-${columns} chl__variant-${variant}`}>
  {(eyebrow || headline || sub) && (
    <div class="chl__header">
      {eyebrow && <p class="chl__eyebrow">{eyebrow}</p>}
      {headline && <h2 class="chl__headline">{headline}</h2>}
      {sub && <p class="chl__sub">{sub}</p>}
    </div>
  )}

  <ul class="chl__list" role="list">
    {items.map((item, i) => (
      <li class="chl__item" style={`--delay: ${i * 75}ms`}>
        <span class="chl__marker" aria-hidden="true">
          {variant === 'numbered'
            ? <span class="chl__number">{String(i + 1).padStart(2, '0')}</span>
            : <span class="chl__check-icon" set:html={checkSVG} />
          }
        </span>
        <span class="chl__content">
          <span class="chl__title">{item.title}</span>
          {item.description && <span class="chl__desc">{item.description}</span>}
        </span>
      </li>
    ))}
  </ul>

  {ctaLabel && ctaHref && (
    <div class="chl__cta">
      <a href={ctaHref} class="chl__cta-btn">{ctaLabel}</a>
    </div>
  )}
</section>

<script>
  const lists = document.querySelectorAll<HTMLElement>('.chl__list');

  lists.forEach((list) => {
    const items = list.querySelectorAll<HTMLElement>('.chl__item');

    const observer = new IntersectionObserver(
      (entries) => {
        entries.forEach((entry) => {
          if (entry.isIntersecting) {
            (entry.target as HTMLElement).classList.add('chl__item--visible');
            observer.unobserve(entry.target);
          }
        });
      },
      { threshold: 0.1, rootMargin: '0px 0px -30px 0px' }
    );

    items.forEach((item) => observer.observe(item));
  });
</script>

<style>
  :root {
    --color-primary: #0a0a0a;
    --color-accent: #6366f1;
    --color-bg: #fff;
    --color-muted: #6b7280;
    --radius: 0.5rem;
  }

  .chl__section {
    padding: 5rem 1.5rem;
    max-width: 56rem;
    margin-inline: auto;
  }

  /* Header */
  .chl__header {
    margin-bottom: 2.5rem;
  }

  .chl__eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin: 0 0 0.75rem;
  }

  .chl__headline {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--color-primary);
    margin: 0 0 1rem;
    line-height: 1.15;
  }

  .chl__sub {
    font-size: 1.0625rem;
    color: var(--color-muted);
    margin: 0;
    line-height: 1.65;
  }

  /* List */
  .chl__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 1.25rem;
  }

  .chl__cols-2 .chl__list {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Item */
  .chl__item {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    opacity: 0;
    transform: translateY(14px);
  }

  .chl__item--visible {
    animation: chl-reveal 0.45s ease forwards;
    animation-delay: var(--delay, 0ms);
  }

  @keyframes chl-reveal {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Marker */
  .chl__marker {
    flex-shrink: 0;
    margin-top: 0.1rem;
  }

  /* Check icon — variant: check */
  .chl__variant-check .chl__check-icon,
  .chl__variant-accent .chl__check-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
  }

  .chl__variant-check .chl__check-icon {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
  }

  .chl__variant-accent .chl__check-icon {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-accent);
  }

  .chl__check-icon :global(svg) {
    width: 14px;
    height: 14px;
  }

  /* Number — variant: numbered */
  .chl__variant-numbered .chl__number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    line-height: 1;
  }

  /* Content */
  .chl__content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .chl__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
  }

  .chl__desc {
    font-size: 0.9rem;
    color: var(--color-muted);
    line-height: 1.65;
  }

  /* CTA */
  .chl__cta {
    margin-top: 2.5rem;
  }

  .chl__cta-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    background: var(--color-accent);
    color: #fff;
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
  }

  .chl__cta-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
  }

  @media (max-width: 600px) {
    .chl__cols-2 .chl__list {
      grid-template-columns: 1fr;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
  }
</style>