:root {
  --ink: #0d0d0d;
  --muted: #6a6a6a;
  --line: #dedede;
  --purple: #2b226f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #fff;
  color: var(--ink);
  font-family: "Manrope", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

header,
main,
footer {
  width: min(1240px, calc(100% - 64px));
  margin: 0 auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
  border-bottom: 1px solid var(--line);
  font-family: "DM Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

header a {
  font-weight: 500;
}

header span {
  color: var(--muted);
}

.hero {
  padding: 74px 0 64px;
  border-bottom: 1px solid var(--line);
}

.label {
  margin: 0 0 22px;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.event-partners {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 64px;
  align-items: start;
}

.host-logos {
  display: flex;
  align-items: center;
  min-height: 96px;
  gap: 22px;
}

.host-logos > span {
  color: #a3a3a3;
  font-family: Georgia, serif;
  font-size: 1.6rem;
}

.brand-link {
  display: inline-block;
  transition: opacity 160ms ease;
}

.brand-link:hover {
  opacity: 0.68;
}

.brand-link:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 6px;
}

.lemma-logo {
  width: 280px;
  height: auto;
}

.comma-logo {
  width: 104px;
  height: auto;
}

h1 {
  margin: 84px 0 48px;
  font-size: clamp(4.5rem, 10.5vw, 9.5rem);
  font-weight: 500;
  letter-spacing: -0.075em;
  line-height: 0.9;
}

.registration-cta {
  display: flex;
  justify-content: center;
  margin: 0 0 64px;
}

.register-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-width: 260px;
  padding: 20px 30px;
  background: var(--ink);
  color: #fff;
  font-family: "DM Mono", monospace;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background 160ms ease, transform 160ms ease;
}

.register-button span {
  font-size: 1.25rem;
  line-height: 1;
}

.register-button:hover {
  background: var(--purple);
  transform: translateY(-2px);
}

.register-button:focus-visible {
  background: var(--purple);
  outline: 2px solid var(--purple);
  outline-offset: 4px;
}

.hero-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 50px;
  align-items: end;
}

.hero-summary > p {
  max-width: 620px;
  margin: 0;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  letter-spacing: -0.025em;
}

.hero-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.hero-meta strong {
  font-size: clamp(2.5rem, 5vw, 4.8rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 1;
}

.hero-meta span {
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.9rem;
}

.brief,
.prizes {
  padding: 92px 0;
  border-bottom: 1px solid var(--line);
}

.brief h2 {
  max-width: 1020px;
  margin: 0;
  font-size: clamp(2rem, 4.2vw, 4.2rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.1;
}

.details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
}

.details article {
  min-height: 410px;
  padding: 66px 44px 66px 0;
}

.details article + article {
  padding-left: 44px;
  border-left: 1px solid var(--line);
}

ul,
dl {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

li,
dl > div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

li:first-child,
dl > div:first-child {
  border-top: 1px solid var(--line);
}

dl > div {
  display: grid;
  grid-template-columns: minmax(90px, 0.55fr) 1fr;
  gap: 18px;
}

dt {
  color: var(--purple);
  font-family: "DM Mono", monospace;
  font-size: 0.76rem;
}

dd {
  margin: 0;
  font-size: 0.92rem;
}

.prize-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.prize-grid > div {
  display: flex;
  flex-direction: column;
  gap: 50px;
  padding: 28px 34px 0 0;
}

.prize-grid > div + div {
  padding-left: 34px;
  border-left: 1px solid var(--line);
}

.prize-grid span {
  color: var(--muted);
  font-size: 0.85rem;
}

.prize-grid strong {
  font-size: clamp(2.7rem, 5.5vw, 5.5rem);
  font-weight: 500;
  letter-spacing: -0.065em;
}

.prize-note {
  margin: 52px 0 0;
  color: var(--purple);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
}

.judges {
  text-align: right;
}

.judges p:not(.label) {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.judges img {
  width: min(230px, 100%);
  height: auto;
}

.arga-link {
  width: min(230px, 100%);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding: 30px 0 42px;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
}

@media (max-width: 820px) {
  header,
  main,
  footer {
    width: min(100% - 40px, 1240px);
  }

  .hero {
    padding-top: 52px;
  }

  .event-partners {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .judges {
    text-align: left;
  }

  h1 {
    margin: 64px 0 38px;
  }

  .registration-cta {
    margin-bottom: 50px;
  }

  .hero-summary {
    grid-template-columns: 1fr;
  }

  .hero-meta {
    align-items: flex-start;
  }

  .brief,
  .prizes {
    padding: 68px 0;
  }

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

  .details article,
  .details article + article {
    min-height: auto;
    padding: 58px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .details article:last-child {
    border-bottom: 0;
  }

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

  .prize-grid > div,
  .prize-grid > div + div {
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
    gap: 30px;
    padding: 24px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

}

@media (max-width: 520px) {
  header {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    min-height: 82px;
  }

  .host-logos {
    gap: 14px;
  }

  .lemma-logo {
    width: 233px;
  }

  .comma-logo {
    width: 88px;
  }

  .judges img,
  .arga-link {
    width: min(192px, 100%);
  }

  h1 {
    font-size: clamp(4rem, 21vw, 6rem);
  }

  .register-button {
    width: 100%;
    min-width: 0;
  }

  .prize-grid strong {
    font-size: 2.6rem;
  }

  footer {
    flex-direction: column;
  }
}