:root{
  --board:#103b2c;
  --board-dark:#08261c;
  --wood-light:#b67b43;
  --wood:#8c5a2c;
  --wood-dark:#5e3617;
  --cream:#fff8e7;
  --shirokko:#25a7b8;
  --yellow:#ffe45c;
  --pink:#ff9fb1;
  --green:#9be28f;
  --orange:#ffb347;
  --blue:#7fd7ff;
  --chalk:#fffef6;
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:"Yu Gothic","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
  background:
    radial-gradient(circle at 12% 8%, rgba(37,167,184,.25), transparent 24%),
    radial-gradient(circle at 88% 15%, rgba(255,228,92,.35), transparent 20%),
    radial-gradient(circle at 82% 88%, rgba(155,226,143,.35), transparent 25%),
    var(--cream);
  background-attachment:fixed;
  color:#fff;
}

.wrapper{
  max-width:1160px;
  margin:auto;
  padding:28px 18px 44px;
}

.site-head{
  color:#176e73;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px;
  margin-bottom:18px;
  font-weight:bold;
}

.site-logo{
  width:96px;
  height:96px;
  border-radius:50%;
  background:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
  text-decoration:none;
  box-shadow:
    0 10px 24px rgba(0,0,0,.13),
    0 0 0 1px rgba(37,167,184,.08);
}

.site-logo img{
  display:block;
  height:66px;
  width:auto;
}

.site-logo:hover{
  opacity:.94;
}

.logo{
  display:none;
}

.catch{
  text-align:right;
  line-height:1.8;
}

.blackboard{
  background:
    radial-gradient(circle at 16% 18%, rgba(255,255,255,.05), transparent 26%),
    radial-gradient(circle at 82% 20%, rgba(255,255,255,.035), transparent 24%),
    radial-gradient(circle at 36% 86%, rgba(255,255,255,.045), transparent 30%),
    linear-gradient(180deg, rgba(21,72,55,.98), rgba(8,38,28,.99));
  border:24px solid transparent;
  border-image:
    linear-gradient(
      135deg,
      var(--wood-light),
      #a86c39 18%,
      var(--wood) 45%,
      var(--wood-dark) 70%,
      #c89056
    ) 1;
  border-radius:28px;
  box-shadow:
    0 24px 55px rgba(0,0,0,.35),
    inset 0 0 0 2px rgba(255,255,255,.08),
    inset 0 2px 4px rgba(255,255,255,.05);
  padding:42px 46px 46px;
  position:relative;
  overflow:hidden;
}

.blackboard::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(90deg, transparent, rgba(255,255,255,.025), transparent),
    radial-gradient(circle at 20% 30%, rgba(255,255,255,.05), transparent 18%),
    radial-gradient(circle at 72% 66%, rgba(255,255,255,.04), transparent 22%);
  mix-blend-mode:screen;
}

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

.board-meta{
  display:flex;
  flex-wrap:wrap;
  justify-content:flex-end;
  gap:8px 18px;
  margin:-18px 0 20px;
  color:#fff8b8;
  font-size:.96rem;
  text-align:right;
  text-shadow:0 0 5px rgba(255,255,255,.08);
}

.board-meta p{
  margin:0;
  line-height:1.65;
}

.meta-title{
  color:#d9f6ff;
  font-weight:bold;
}

.board-word{
  flex-basis:100%;
}

h1{
  text-align:center;
  font-size:clamp(3.4rem,8vw,7rem);
  margin:0;
  letter-spacing:.08em;
  color:var(--chalk);
  text-shadow:
    2px 2px 0 rgba(255,255,255,.10),
    0 0 8px rgba(255,255,255,.12),
    0 2px 14px rgba(0,0,0,.18);
}

.subtitle{
  text-align:center;
  color:var(--yellow);
  font-size:clamp(1.25rem,3vw,2.1rem);
  margin:12px 0 18px;
  text-shadow:0 0 6px rgba(255,255,255,.08);
}

.engawa{
  text-align:center;
  border:2px solid var(--green);
  border-radius:999px;
  padding:12px 24px;
  margin:0 auto 22px;
  max-width:560px;
  font-size:1.35rem;
  color:#fff8b8;
  background:rgba(255,255,255,.03);
}

.main-copy{
  text-align:center;
  color:var(--pink);
  font-size:1.25rem;
  margin-bottom:34px;
  font-weight:bold;
}

.grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
}

.card{
  border:2px dashed rgba(255,255,255,.55);
  border-radius:20px;
  padding:26px;
  margin-bottom:26px;
  background:rgba(255,255,255,.035);
}

.label{
  display:inline-block;
  color:#e7fbff;
  border-bottom:4px solid var(--blue);
  padding-bottom:4px;
  font-size:1.3rem;
  font-weight:bold;
  margin-bottom:16px;
  letter-spacing:.05em;
}

p{
  line-height:2;
  font-size:1.05rem;
}

.datetime{
  font-size:clamp(1.6rem,3.2vw,2.5rem);
  line-height:1.45;
  color:#fff;
  font-weight:bold;
  margin:8px 0 14px;
}

.big-free{
  font-size:clamp(2rem,4vw,3.2rem);
  color:#fff;
  font-weight:bold;
}

.yellow{
  color:var(--yellow);
}

.pink{
  color:var(--pink);
}

.blue{
  color:var(--blue);
}

.fun-message{
  text-align:center;
  font-size:1.25rem;
  color:var(--yellow);
  margin:18px 0 22px;
  font-weight:bold;
}

.badges{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:18px;
}

.badges span{
  border:2px solid var(--yellow);
  color:var(--yellow);
  border-radius:999px;
  padding:10px 16px;
  background:rgba(255,255,255,.06);
  font-weight:bold;
}

.people{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:10px;
  text-align:center;
}

.people span{
  border:1px solid rgba(255,255,255,.6);
  border-radius:16px;
  padding:11px 6px;
  background:rgba(255,255,255,.06);
}

.promise ul,
.can ul{
  margin:0;
  padding-left:1.2em;
  line-height:2.1;
}

.wind-message{
  text-align:center;
  background:rgba(255,255,255,.04);
  border:2px solid rgba(255,228,92,.55);
  border-radius:20px;
  padding:28px;
  margin:10px 0 28px;
}

.wind-message p{
  margin:0;
  font-size:1.18rem;
  line-height:2.15;
  color:#fff8b8;
  font-weight:700;
  text-shadow:0 0 6px rgba(255,255,255,.08);
}

.culture-message{
  text-align:center;
  background:rgba(255,255,255,.035);
  border:2px dashed rgba(255,248,184,.55);
  border-radius:22px;
  padding:30px 26px;
  margin:6px 0 30px;
}

.culture-message p{
  margin:0;
  font-size:clamp(1.12rem,2.2vw,1.45rem);
  line-height:2.1;
  color:#fffdf1;
  font-weight:700;
  letter-spacing:.03em;
  text-shadow:
    1px 1px 0 rgba(255,255,255,.08),
    0 0 8px rgba(255,255,255,.10);
}

.culture-message .culture-soft{
  color:#fff8b8;
}

.fun-box{
  border:2px solid rgba(255,228,92,.7);
  border-radius:20px;
  padding:22px;
  text-align:center;
  color:#fff7c6;
  font-size:1.15rem;
  line-height:2;
  margin-bottom:26px;
  background:rgba(255,255,255,.035);
}

.message{
  font-size:clamp(1.8rem,4vw,3.1rem);
  line-height:1.8;
  text-align:center;
  margin:34px 0;
  color:#fffdf1;
}

.message span{
  border-bottom:4px solid var(--yellow);
}

.footer{
  border:2px dashed rgba(217,246,255,.75);
  border-radius:20px;
  padding:22px;
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:35px;
  align-items:start;
}

.venue-text{
  font-size:1.2rem;
}

.map{
  margin-top:18px;
  border-radius:18px;
  overflow:hidden;
  border:4px solid #8fcf8b;
  box-shadow:0 10px 25px rgba(0,0,0,.35);
}

.map iframe{
  width:100%;
  height:340px;
  display:block;
  border:0;
}

.bottom-note{
  color:#176e73;
  text-align:center;
  font-weight:bold;
  line-height:2;
  margin-top:26px;
}

@media(max-width:850px){
  .wrapper{
    padding:20px 12px 34px;
  }

  .site-head{
    flex-direction:column;
    gap:10px;
    text-align:center;
  }

  .site-logo{
    width:84px;
    height:84px;
    margin:auto;
  }

  .site-logo img{
    height:56px;
  }

  .catch{
    text-align:center;
    margin-top:0;
  }

  .blackboard{
    border-width:14px;
    padding:26px;
  }

  .board-meta{
    justify-content:flex-start;
    text-align:left;
    margin:-6px 0 18px;
    gap:4px 14px;
  }

  .board-word{
    flex-basis:100%;
  }

  .grid,
  .footer{
    grid-template-columns:1fr;
  }

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