:root{
  /* hero: 宵の空(たそがれ)グラデーション */
  --dusk-deep:  #262b5e;
  --dusk-mid:   #6a5f96;
  --dusk-glow:  #f0a865;

  /* body: 明るいクリーム基調 */
  --cream:      #faf5e9;
  --panel:      #ffffff;
  --amber:      #c9793a;
  --amber-dim:  #e0a86c;
  --ink:        #33304a;
  --ink-dim:    #7a7690;
  --line:       #ece2cc;
  --star:       #ffffff;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:"Zen Kaku Gothic New", sans-serif;
  font-weight:400;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}

/* ================= HERO ================= */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  padding:6rem 1.5rem 4rem;
  background:
    radial-gradient(ellipse at 50% 100%, var(--dusk-glow) 0%, transparent 75%),
    linear-gradient(180deg, var(--dusk-deep) 0%, var(--dusk-mid) 35%, #b98a6e 85%);
}

.hero__social{
  position:absolute;
  top:1.6rem;
  right:1.6rem;
  z-index:2;
  display:flex;
  gap:1.1rem;
}
.hero__social a{
  display:block;
  line-height:0;
  transition:transform 0.2s ease;
  filter:drop-shadow(0 2px 6px rgba(0,0,0,0.25));
}
.hero__social a:hover{
  transform:translateY(-2px) scale(1.06);
}

.hero__sky{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  z-index:0;
  opacity:0.8;
}

/* ================= SHOOTING STARS ================= */
.shooting-stars{
  position:absolute;
  inset:0;
  overflow:hidden;
  z-index:0;
  pointer-events:none;
}
.shooting-star{
  position:absolute;
  top:0; left:0;
  width:110px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg, rgba(255,248,236,0) 0%, rgba(255,248,236,0.9) 90%, #fff8ec 100%);
  opacity:0;
}
.shooting-star::after{
  content:"";
  position:absolute;
  right:-2px;
  top:-2px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:#fff8ec;
  box-shadow:0 0 10px 3px rgba(255,248,236,0.85);
}
@keyframes shoot-across{
  0%     { transform:translateX(0); opacity:0; }
  0.3%   { opacity:1; }
  1.25%  { transform:translateX(190px); opacity:1; }
  1.75%  { transform:translateX(190px); opacity:0; }
  100%   { transform:translateX(190px); opacity:0; }
}
.shooting-star--1{
  top:14%;
  left:12%;
  animation:shoot-across 64s ease-in infinite;
  animation-delay:2s;
}

.spica-core{ fill:#fff4de; }
.spica-glow{
  fill:#ffd9a0;
  opacity:0.25;
  filter:blur(1px);
}

@keyframes twinkle{
  0%, 100% { opacity:0.35; }
  50%      { opacity:1; }
}
.const-stars circle,
.bg-stars circle{
  animation:twinkle 4.5s ease-in-out infinite;
}
.spica-core{
  animation:twinkle 3s ease-in-out infinite;
}

.hero__content{
  position:relative;
  z-index:1;
  max-width:640px;
  text-align:center;
}

.hero__eyebrow{
  font-family:"Zen Kaku Gothic New", sans-serif;
  font-size:0.72rem;
  letter-spacing:0.35em;
  color:#ffe3ba;
  margin:0 0 1.2rem;
  font-weight:500;
}

.hero__title{
  font-family:"Shippori Mincho", serif;
  font-weight:700;
  font-size:clamp(2.6rem, 8vw, 4.4rem);
  line-height:1.15;
  margin:0 0 1rem;
  letter-spacing:0.02em;
  color:#fffaf2;
}
.hero__amp{
  color:var(--dusk-glow);
  font-weight:500;
  padding:0 0.15em;
}

.hero__tagline{
  font-family:"Shippori Mincho", serif;
  font-size:1.15rem;
  color:#ffe3ba;
  margin:0 0 1.6rem;
  letter-spacing:0.08em;
}

.hero__lead{
  font-size:0.95rem;
  color:rgba(255,250,242,0.82);
  max-width:280px;
  margin:0 auto 3rem;
}


.hide-mobile{ display:inline; }
@media (max-width:480px){
  .hide-mobile{ display:none; }
}

/* ================= SECTION SHARED ================= */
.section-label{
  font-family:"Shippori Mincho", serif;
  font-size:1.5rem;
  font-weight:700;
  color:var(--ink);
  margin:0 0 0.4rem;
  text-align:center;
  letter-spacing:0.06em;
}
.section-label--left{ text-align:left; }
.section-sub{
  text-align:center;
  color:var(--ink-dim);
  font-size:0.85rem;
  margin:0 0 2.4rem;
}

main{
  background:var(--cream);
}

/* ================= ATMOSPHERE ================= */
.atmosphere{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  align-items:center;
  gap:0;
  max-width:1040px;
  margin:0 auto;
}
.atmosphere__photo{
  aspect-ratio:1/1;
  overflow:hidden;
  border-radius:4px;
  margin:3rem 1.5rem;
  box-shadow:0 24px 48px -24px rgba(51,48,74,0.35);
}
.atmosphere__photo img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.atmosphere__text{
  padding:2rem 1.5rem 2rem 0;
}
.atmosphere__text p{
  color:var(--ink-dim);
  font-size:0.95rem;
}

@media (max-width:760px){
  .atmosphere{ grid-template-columns:1fr; }
  .atmosphere__photo{ margin:2.5rem 1.5rem 0; }
  .atmosphere__text{ padding:1.5rem 1.5rem 0.5rem; text-align:left; }
}

/* ================= INFO ================= */
.info{
  padding:4rem 1.5rem 5rem;
  display:flex;
  justify-content:center;
}
.info__card{
  width:100%;
  max-width:560px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:4px;
  padding:2.8rem 2.2rem;
  box-shadow:0 20px 40px -28px rgba(51,48,74,0.25);
}
.info__list{ margin:2rem 0 0; }
.info__row{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:1rem;
  padding:1.1rem 0;
  border-top:1px solid var(--line);
}
.info__row:first-child{ border-top:none; }
.info__row dt{
  font-family:"Shippori Mincho", serif;
  color:var(--amber);
  font-size:0.9rem;
  letter-spacing:0.05em;
  font-weight:500;
}
.info__row dd{
  margin:0;
  font-size:0.92rem;
}
.info__note{
  color:var(--ink-dim);
  font-size:0.78rem;
}

.map-link{
  display:inline-flex;
  align-items:center;
  gap:0.5rem;
  margin-top:2.2rem;
  padding:0.75rem 1.4rem;
  border:1px solid var(--amber-dim);
  border-radius:2px;
  color:var(--amber);
  text-decoration:none;
  font-size:0.85rem;
  letter-spacing:0.05em;
  transition:background 0.2s ease, color 0.2s ease;
}
.map-link:hover{
  background:var(--amber);
  color:#fff;
}

/* ================= CALENDAR ================= */
.calendar{
  padding:1rem 1.5rem 6rem;
  max-width:760px;
  margin:0 auto;
}
.calendar__frame{
  background:#fff;
  border-radius:4px;
  padding:6px;
  border:1px solid var(--line);
  box-shadow:0 20px 40px -28px rgba(51,48,74,0.25);
}
.calendar__frame iframe{
  display:block;
  border-radius:2px;
}

/* ================= FOOTER ================= */
.footer{
  position:relative;
  background:var(--dusk-deep);
  padding:3rem 1.5rem 2.2rem;
  text-align:center;
}
.footer__name{
  font-family:"Shippori Mincho", serif;
  font-size:1.05rem;
  letter-spacing:0.08em;
  margin:0 0 0.6rem;
  color:#fffaf2;
}
.footer__copy{
  color:rgba(255,250,242,0.6);
  font-size:0.75rem;
  letter-spacing:0.04em;
  margin:0;
}

/* ================= MOTION SAFETY ================= */
@media (prefers-reduced-motion:reduce){
  .const-stars circle,
  .bg-stars circle,
  .spica-core,
  .shooting-star{
    animation:none !important;
  }
}

/* ================= RESPONSIVE ================= */
@media (max-width:600px){
  .info__row{ grid-template-columns:1fr; gap:0.3rem; }
  .info__card{ padding:2.2rem 1.5rem; }
  .calendar__frame iframe{ height:520px; }
}