:root {
  --color-ink: #172b43;
  --color-ink-soft: #42566d;
  --color-paper: #fbfaf7;
  --color-soft: #edf3f8;
  --color-accent: #b84f43;
  --color-accent-dark: #722d27;
  --color-accent-soft: #f2d8d3;
  --color-line: #c9d4df;
  --color-white: #ffffff;
  --shadow-card: 0 1.4rem 3rem rgba(23, 43, 67, 0.16);
  --radius-small: 0.6rem;
  --radius-large: 1.5rem;
  --page-width: 72rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1.125rem;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.18em;
}

a:focus-visible {
  outline: 0.22rem solid var(--color-accent);
  outline-offset: 0.25rem;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-small);
  background: var(--color-white);
  color: var(--color-ink);
  font-weight: 750;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.page-width {
  width: min(calc(100% - 2rem), var(--page-width));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--color-line);
  background: color-mix(in srgb, var(--color-paper) 94%, transparent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 auto;
}

.header-link {
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.75fr);
  align-items: start;
  gap: clamp(2.5rem, 6vw, 5rem);
  padding-block: clamp(4rem, 9vw, 8rem);
}

.hero-copy {
  max-width: 46rem;
  padding-top: clamp(1rem, 4vw, 3.5rem);
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--color-ink-soft);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.12;
}

h1 {
  margin-bottom: 1.5rem;
  font-size: clamp(2.7rem, 7vw, 5.8rem);
  letter-spacing: -0.045em;
}

h2 {
  margin-bottom: 1.2rem;
  font-size: clamp(2rem, 4vw, 3.4rem);
  letter-spacing: -0.025em;
}

h3 {
  margin-bottom: 0.6rem;
  font-size: 1.35rem;
}

.intro {
  max-width: 42rem;
  margin: 0 0 2rem;
  color: var(--color-ink-soft);
  font-size: clamp(1.2rem, 2vw, 1.45rem);
}

.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.25rem;
  border: 0.14rem solid var(--color-ink);
  border-radius: 999px;
  background: var(--color-ink);
  color: var(--color-white);
  font-weight: 800;
  text-decoration: none;
}

.button:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

.hero-side {
  min-width: 0;
}

.hero-visual,
.process-photo {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-large);
  background: var(--color-soft);
}

.hero-visual img,
.process-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual {
  aspect-ratio: 3 / 2;
  box-shadow: var(--shadow-card);
}

.event-card {
  position: relative;
  width: calc(100% - clamp(1rem, 5vw, 4rem));
  margin: clamp(-4.5rem, -6vw, -3rem) auto 0;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border: 1px solid var(--color-line);
  border-top: 0.55rem solid var(--color-accent);
  border-radius: var(--radius-large);
  background: var(--color-white);
  box-shadow: var(--shadow-card);
  scroll-margin-top: 1rem;
}

.event-kicker {
  margin: 0 0 0.45rem;
  color: var(--color-ink-soft);
  font-weight: 800;
}

.event-card h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.event-details {
  margin: 1.6rem 0 1.2rem;
}

.event-details div {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1rem;
  padding-block: 0.75rem;
  border-top: 1px solid var(--color-line);
}

.event-details div:last-child {
  border-bottom: 1px solid var(--color-line);
}

.event-details dt {
  font-weight: 800;
}

.event-details dd {
  margin: 0;
}

.event-note {
  margin-bottom: 0;
  color: var(--color-ink-soft);
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section-soft {
  background: var(--color-soft);
}

.section-heading {
  max-width: 48rem;
  margin-bottom: 3rem;
}

.section-heading > p:last-child {
  color: var(--color-ink-soft);
  font-size: 1.2rem;
}

.topic-grid {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  list-style: none;
}

.topic-grid li {
  padding: 1.6rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: var(--color-white);
}

.topic-number {
  display: grid;
  width: 2.4rem;
  height: 2.4rem;
  place-items: center;
  margin-bottom: 1.5rem;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.topic-grid p {
  margin-bottom: 0;
  color: var(--color-ink-soft);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 7rem);
}

.process-photo {
  aspect-ratio: 4 / 3;
  margin-top: 2rem;
}

.prose {
  max-width: 42rem;
}

.prose p:first-child {
  margin-top: 0;
}

.prose p:last-child {
  margin-bottom: 0;
}

.section-dark {
  background: var(--color-ink);
  color: var(--color-white);
  border-top: 0.45rem solid var(--color-accent);
}

.eyebrow-light,
.section-dark .prose {
  color: #dce7f1;
}

.responsible {
  max-width: 48rem;
  text-align: center;
}

.responsible p:last-child {
  margin-inline: auto;
  color: var(--color-ink-soft);
}

.site-footer {
  border-top: 1px solid var(--color-line);
  background: var(--color-soft);
}

.footer-inner {
  padding-block: 2.25rem;
  font-size: 0.95rem;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 52rem) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-block: 2.75rem 4rem;
  }

  .hero-copy {
    padding-top: 0;
  }

  .hero-side {
    display: flex;
    flex-direction: column;
  }

  .event-card {
    order: -1;
    width: 100%;
    max-width: none;
    margin: 0 0 1.25rem;
  }

  .hero-visual {
    aspect-ratio: 16 / 9;
    box-shadow: none;
  }

  .process-photo {
    display: none;
  }

  .topic-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 34rem) {
  body {
    font-size: 1rem;
  }

  .header-inner {
    min-height: 4.5rem;
  }

  .header-link {
    display: none;
  }

  .event-details div {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}