/*
  Event 04 — standalone HTML/CSS/JS implementation.
  No build step, no framework, no external dependency: copy these three
  files into any project and open index.html as-is.
*/

*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --white: #ffffff;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --blue-50: #eff6ff;
  --blue-700: #1d4ed8;
  --font-sans:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji",
    "Segoe UI Emoji";
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--slate-900);
  background-color: var(--white);
  line-height: 1.5;
}

.events {
  padding: clamp(4rem, 3.5rem + 2vw, 6rem) clamp(1rem, 0.3rem + 3vw, 2rem);
}

.events__inner {
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
}

.intro {
  max-width: 34rem;
  margin: 0 auto;
  text-align: center;
}

.kicker {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--blue-700);
}

.heading {
  margin: 0.75rem 0 0;
  font-weight: 600;
  font-size: clamp(1.875rem, 1.5rem + 1.9vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.rows {
  margin-top: 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.row {
  display: grid;
  grid-template-columns: 1fr;
  align-items: center;
  gap: 2rem;
}

.row__media {
  overflow: hidden;
  border-radius: 1rem;
}

.row__media img {
  display: block;
  width: 100%;
  height: 16rem;
  object-fit: cover;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  background-color: var(--blue-50);
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--blue-700);
}

.row__title {
  margin: 1rem 0 0;
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.row__description {
  margin: 0.75rem 0 0;
  max-width: 28rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--slate-600);
}

.row__meta {
  margin: 1rem 0 0;
  font-size: 0.875rem;
  color: var(--slate-500);
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
  border-radius: 999px;
  background-color: var(--slate-900);
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
  transition: background-color 200ms ease;
}

.cta:hover {
  background-color: var(--slate-800);
}

.cta:focus-visible {
  outline: 2px solid var(--slate-900);
  outline-offset: 2px;
}

@media (min-width: 640px) {
  .row__media img {
    height: 20rem;
  }
}

@media (min-width: 1024px) {
  .row {
    grid-template-columns: repeat(2, 1fr);
    gap: 3.5rem;
  }

  .row__media img {
    height: 24rem;
  }

  .row--reverse .row__media {
    order: 2;
  }

  .row--reverse .row__text {
    order: 1;
  }
}

/* Motion — disabled entirely under reduced motion; every row already
   renders at its final, fully visible state outside this media query. */
@media (prefers-reduced-motion: no-preference) {
  @keyframes al-event04-slide-left {
    from {
      opacity: 0;
      transform: translateX(-28px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  @keyframes al-event04-slide-right {
    from {
      opacity: 0;
      transform: translateX(28px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  @keyframes al-event04-fade {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .slide-left {
    animation: al-event04-slide-left 700ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  .slide-right {
    animation: al-event04-slide-right 700ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  .fade {
    animation: al-event04-fade 550ms 120ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }
}
Event 04

Requirements

Dependencies

Usage
