:root {
  --bg: #f8f8f6;
  --text: #0f0f12;
  --muted: #526a86;
  --brand-blue: #203d67;
  --brand-gold: #f2aa1f;
  --line: rgba(18, 18, 24, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Montserrat", sans-serif;
}

.poster-shell {
  width: min(100vw, 1600px);
  margin: 0 auto;
  min-height: calc(100vh - 44px);
  padding: 3.2vh 3vw 1.4vh;
  display: grid;
  grid-template-columns: minmax(340px, 1.28fr) minmax(300px, 0.9fr) minmax(360px, 0.98fr);
  column-gap: clamp(54px, 4.8vw, 96px);
  align-items: stretch;
}

.left-column,
.middle-column,
.right-column {
  min-height: 0;
}

.left-column {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: flex-start;
}

.brand-logo {
  width: clamp(220px, 17vw, 300px);
  height: auto;
  display: block;
  object-fit: contain;
}

.hero-copy {
  margin-top: 1vh;
  display: flex;
  align-items: center;
  flex: 1;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(72px, 8vw, 108px);
  line-height: 0.92;
  font-weight: 400;
  letter-spacing: -0.07em;
}

.contact-block {
  padding-bottom: 1.8vh;
}

.contact-block p {
  margin: 0;
}

.company {
  font-size: clamp(16px, 1.15vw, 20px);
  margin-bottom: 10px;
}

.info-title {
  color: #1e5b93;
  font-size: clamp(17px, 1.28vw, 24px);
  font-weight: 700;
}

.person {
  margin-top: 4px;
  color: #1e5b93;
  font-size: clamp(15px, 1.1vw, 20px);
  font-weight: 700;
}

.detail {
  margin-top: 3px;
  color: #5b87b3;
  font-size: clamp(15px, 1.1vw, 18px);
}

.contact-link {
  color: inherit;
  text-decoration: none;
}

.contact-link:hover {
  text-decoration: underline;
}

.middle-column {
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  align-items: center;
  text-align: right;
  padding-top: 1.2vh;
  padding-bottom: 1.2vh;
  justify-items: end;
  padding-right: 0;
  transform: translateX(clamp(28px, 3vw, 52px));
}

.event-copy {
  padding-right: 0;
  max-width: 100%;
}

.event-copy h2,
.event-copy p {
  margin: 0;
}

.event-copy h2 {
  font-size: clamp(20px, 1.85vw, 34px);
  line-height: 1.02;
  font-weight: 700;
}

.event-copy p {
  margin-top: 2px;
  font-size: clamp(15px, 1.2vw, 22px);
  font-weight: 400;
}

.right-column {
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  gap: clamp(10px, 1vh, 16px);
  min-height: 100%;
}

.event-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #d8dde2;
}

.event-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.96;
}

.event-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(0, 0, 0, 0.08));
}

.event-card > * {
  position: relative;
  z-index: 1;
}

.card-top-brand {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  padding: 12px 16px 0;
  color: #1d4d77;
  font-size: clamp(12px, 0.95vw, 16px);
  font-weight: 700;
}

.card-content {
  padding: 20px 16px 16px;
}

.event-card-silver::before {
  background-image: url("./assets/card_1.png");
  background-size: cover;
  background-position: center;
  opacity: 1;
}

.event-card-aim::before {
  background-image: url("./assets/card_2.png");
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 1;
}

.event-card-ppp::before {
  background-image: url("./assets/card_3.png");
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 1;
}

.event-card-agri::before {
  background-image: url("./assets/card_4.png");
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 1;
}

.copyright {
  margin: -0.2vh auto 1.2vh;
  width: min(100vw, 1600px);
  padding: 0 3vw;
  text-align: center;
  color: #6f8aa6;
  font-size: clamp(10px, 0.8vw, 13px);
  line-height: 1.15;
  font-style: italic;
}

@media (max-width: 1280px) {
  .poster-shell {
    grid-template-columns: minmax(240px, 1.08fr) minmax(220px, 0.86fr) minmax(300px, 0.96fr);
    column-gap: clamp(30px, 3vw, 48px);
  }

  .hero-copy h1 {
    font-size: clamp(62px, 7vw, 88px);
  }
}

@media (max-width: 1080px) {
  .poster-shell {
    grid-template-columns: 1fr;
    row-gap: 24px;
    min-height: auto;
    padding-top: 28px;
  }

  .left-column,
  .middle-column,
  .right-column {
    min-height: auto;
  }

  .left-column {
    gap: 28px;
  }

  .middle-column {
    text-align: left;
    gap: 24px;
    grid-template-rows: auto;
    justify-items: start;
    padding-right: 0;
    transform: none;
  }

  .right-column {
    grid-template-rows: auto;
    gap: 16px;
  }

  .hero-copy {
    display: block;
  }

  .hero-copy h1 {
    font-size: clamp(54px, 13vw, 84px);
  }

  .event-copy {
    padding-right: 0;
  }

  .event-card {
    min-height: 220px;
  }
}

@media (max-width: 640px) {
  .poster-shell {
    padding: 20px 16px 10px;
  }

  .brand-logo {
    width: clamp(180px, 42vw, 240px);
  }

  .hero-copy h1 {
    font-size: clamp(46px, 16vw, 68px);
    line-height: 0.95;
  }

  .event-copy h2 {
    font-size: 18px;
  }

  .event-copy p,
  .detail,
  .company,
  .person,
  .info-title {
    font-size: 15px;
  }

  .event-card {
    min-height: 180px;
  }
}