/* =========================
   Wedding Portal Common CSS
   Mobile-first / Sky theme
   ========================= */

:root{
  --sky1:#78C8FF;
  --sky2:#CFEFFF;
  --sky3:#FFFFFF;

  --ink:#0B1B2B;
  --muted:rgba(11,27,43,.66);

  --card:rgba(255,255,255,.78);
  --card2:rgba(255,255,255,.52);
  --border:rgba(255,255,255,.55);

  --shadow: 0 18px 50px rgba(3,18,36,.16);
  --radius: 22px;

  --focus: 0 0 0 4px rgba(120,200,255,.35);
  --tap: 48px;

  --ok: rgba(0,120,90,.92);
  --err: rgba(200,60,60,.94);

  --container: 1100px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
html{ -webkit-text-size-adjust:100%; }
body{
  margin:0;
  color:var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Segoe UI", sans-serif;
  overflow-x:hidden;
  background:
    radial-gradient(1200px 800px at 20% 10%, rgba(255,255,255,.92), rgba(255,255,255,0) 55%),
    radial-gradient(900px 700px at 85% 18%, rgba(255,255,255,.78), rgba(255,255,255,0) 60%),
    linear-gradient(160deg, var(--sky1) 0%, var(--sky2) 55%, var(--sky3) 100%);
}

a{ color:inherit; text-decoration:none; }
button, input, textarea{ font:inherit; }
img{ max-width:100%; height:auto; display:block; }

:focus{ outline:none; }
:focus-visible{ box-shadow: var(--focus); border-radius: 12px; }

/* ===== Ambient sky layers ===== */
.sky{
  position:fixed;
  inset:-20%;
  pointer-events:none;
  filter: blur(12px);
  opacity:.85;
  transform: translateZ(0);
  background:
    radial-gradient(260px 160px at 18% 25%, rgba(255,255,255,.90), rgba(255,255,255,0) 70%),
    radial-gradient(340px 190px at 38% 30%, rgba(255,255,255,.82), rgba(255,255,255,0) 72%),
    radial-gradient(420px 230px at 65% 24%, rgba(255,255,255,.76), rgba(255,255,255,0) 74%),
    radial-gradient(300px 180px at 82% 40%, rgba(255,255,255,.68), rgba(255,255,255,0) 72%),
    radial-gradient(520px 260px at 45% 72%, rgba(255,255,255,.58), rgba(255,255,255,0) 76%),
    radial-gradient(460px 240px at 12% 80%, rgba(255,255,255,.54), rgba(255,255,255,0) 78%);
  animation: drift 18s ease-in-out infinite;
}
.glint{
  position:fixed;
  inset:-30%;
  pointer-events:none;
  background:
    conic-gradient(from 210deg at 30% 20%, rgba(255,255,255,0), rgba(255,255,255,.35), rgba(255,255,255,0) 35%),
    radial-gradient(900px 500px at 60% 20%, rgba(255,255,255,.24), rgba(255,255,255,0) 70%);
  mix-blend-mode: soft-light;
  animation: glint 14s ease-in-out infinite;
}
@keyframes drift{
  0%{transform:translate3d(0,0,0) scale(1.02);}
  50%{transform:translate3d(-2.4%,1.5%,0) scale(1.04);}
  100%{transform:translate3d(0,0,0) scale(1.02);}
}
@keyframes glint{
  0%{transform:translate3d(0,0,0) rotate(0deg); opacity:.85;}
  50%{transform:translate3d(2.0%,-1.2%,0) rotate(4deg); opacity:.98;}
  100%{transform:translate3d(0,0,0) rotate(0deg); opacity:.85;}
}
@media (prefers-reduced-motion: reduce){
  .sky,.glint{ animation:none; }
}

/* ===== Layout ===== */
.wrap{
  min-height:100%;
  padding:max(18px, env(safe-area-inset-top)) 16px max(20px, env(safe-area-inset-bottom));
  display:grid;
  place-items:start center;
}
.container{
  width:min(var(--container), 100%);
  display:grid;
  gap:14px;
}

/* ===== Topbar ===== */
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:14px;
  border-radius:var(--radius);
  border:1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.42), rgba(255,255,255,.16));
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position:relative;
  z-index:10;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.mark{
  width:38px;
  height:38px;
  border-radius:14px;
  background: linear-gradient(160deg, rgba(255,255,255,.95), rgba(255,255,255,.45));
  border:1px solid rgba(255,255,255,.70);
  box-shadow: 0 10px 24px rgba(0,0,0,.10);
  position:relative;
  overflow:hidden;
  flex:0 0 auto;
}
.mark::before{
  content:"";
  position:absolute;
  inset:-30%;
  background:
    radial-gradient(circle at 35% 40%, rgba(120,200,255,.85), rgba(120,200,255,0) 62%),
    radial-gradient(circle at 75% 25%, rgba(255,255,255,.92), rgba(255,255,255,0) 55%);
  transform: rotate(10deg);
  opacity:.95;
}
.brandTitle{ min-width:0; }
.brandTitle h1{
  margin:0;
  font-size:14px;
  letter-spacing:.10em;
  text-transform:uppercase;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brandTitle p{
  margin:2px 0 0;
  font-size:12px;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* ===== Menu ===== */
.menuBtn{
  width:var(--tap);
  height:var(--tap);
  border-radius:16px;
  border:1px solid rgba(255,255,255,.55);
  background: rgba(255,255,255,.20);
  box-shadow: 0 10px 22px rgba(0,0,0,.08);
  cursor:pointer;
  display:grid;
  place-items:center;
  touch-action:manipulation;
}
.menuBtn:focus{ box-shadow: var(--focus), 0 10px 22px rgba(0,0,0,.08); }
.burger{ width:18px; height:12px; position:relative; }
.burger span{
  position:absolute;
  left:0; right:0;
  height:2px;
  border-radius:999px;
  background: rgba(11,27,43,.78);
  transition: transform .18s ease, top .18s ease, opacity .18s ease;
}
.burger span:nth-child(1){ top:0; }
.burger span:nth-child(2){ top:5px; }
.burger span:nth-child(3){ top:10px; }
.menuBtn[aria-expanded="true"] .burger span:nth-child(1){ top:5px; transform:rotate(45deg); }
.menuBtn[aria-expanded="true"] .burger span:nth-child(2){ opacity:0; }
.menuBtn[aria-expanded="true"] .burger span:nth-child(3){ top:5px; transform:rotate(-45deg); }

.menuOverlay{
  position:fixed;
  inset:0;
  background: rgba(3,12,22,.35);
  display:none;
  z-index:40;
}
.menuOverlay.open{ display:block; }

.menuSheet{
  position:fixed;
  top:max(12px, env(safe-area-inset-top));
  right:12px;
  width:min(320px, calc(100% - 24px));
  border-radius:22px;
  border:1px solid rgba(255,255,255,.55);
  background: rgba(255,255,255,.86);
  box-shadow: 0 30px 90px rgba(0,0,0,.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding:12px;
  display:none;
  z-index:50;
}
.menuSheet.open{ display:block; }

.menuTop{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:10px;
  padding:6px 6px 10px;
  border-bottom:1px solid rgba(11,27,43,.08);
}
.menuTop .t{
  font-size:12px;
  color: rgba(11,27,43,.72);
  line-height:1.5;
  word-break:break-word;
}

/* ===== Menu Close (×) ===== */
.menuTop{
  align-items: center; /* 右上でキレイに揃える */
}

.menuCloseBtn{
  width: 44px;
  height: 44px;
  border-radius: 16px;
  border: 1px solid rgba(11,27,43,.10);
  background: rgba(255,255,255,.62);
  color: rgba(11,27,43,.82);
  box-shadow: 0 10px 22px rgba(0,0,0,.08);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 22px;     /* ×を見やすく */
  line-height: 1;
  font-weight: 900;
  padding: 0;
  touch-action: manipulation;
}

.menuCloseBtn:active{
  transform: translateY(1px);
}

.menuCloseBtn:focus{
  box-shadow: var(--focus), 0 10px 22px rgba(0,0,0,.08);
}



.menuList{ margin:10px 0 0; display:grid; gap:10px; }
.menuItem{
  width:100%;
  text-align:left;
  border:1px solid rgba(11,27,43,.10);
  background: rgba(255,255,255,.70);
  color: rgba(11,27,43,.86);
  border-radius:16px;
  min-height:44px;
  padding:10px 12px;
  font-size:13px;
  font-weight:750;
  cursor:pointer;
  touch-action:manipulation;
}
.menuItem.subtle{
  background: rgba(255,255,255,.55);
  font-weight:650;
}

/* ===== Hero / Section ===== */
.hero{
  border-radius:var(--radius);
  border:1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.38), rgba(255,255,255,.12));
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding:18px;
  position:relative;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  inset:-1px;
  background:
    radial-gradient(680px 380px at 30% 18%, rgba(255,255,255,.55), rgba(255,255,255,0) 62%),
    radial-gradient(520px 320px at 70% 70%, rgba(255,255,255,.35), rgba(255,255,255,0) 65%);
  opacity:.75;
  pointer-events:none;
}
.hero h2{
  margin:0 0 6px;
  font-size:22px;
  line-height:1.18;
  position:relative;
  z-index:1;
}
.hero p{
  margin:0;
  color:var(--muted);
  font-size:13px;
  line-height:1.75;
  position:relative;
  z-index:1;
  max-width:80ch;
}
@media (min-width:900px){
  .hero{ padding:22px; }
  .hero h2{ font-size:28px; }
  .hero p{ font-size:14px; }
}

/* ===== Cards / Forms ===== */
.card{
  border-radius:var(--radius);
  border:1px solid var(--border);
  background: linear-gradient(180deg, var(--card), var(--card2));
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding:16px;
  overflow:hidden;
  position:relative;
}
.card h3{ margin:0 0 10px; font-size:16px; letter-spacing:.02em; }
.card p{ margin:0; color:var(--muted); font-size:13px; line-height:1.7; }

.field{ display:grid; gap:8px; margin-top:12px; }
.label{ font-size:12.5px; color: rgba(11,27,43,.82); font-weight:800; letter-spacing:.02em; }

input[type="text"],
input[type="email"],
input[type="number"],
input[type="url"],
select,
textarea{
  width:100%;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.58);
  background: rgba(255,255,255,.22);
  padding:12px 12px;
  font-size:14px;
  color: rgba(11,27,43,.86);
  outline:none;
}
textarea{ min-height:140px; resize:vertical; }
select{ appearance:none; -webkit-appearance:none; }
input:focus, select:focus, textarea:focus{
  box-shadow: var(--focus);
  border-color: rgba(255,255,255,.82);
}

.help{ font-size:12px; color:var(--muted); line-height:1.6; margin-top:6px; }

.btn{
  width:100%;
  border:0;
  border-radius:16px;
  padding:12px 14px;
  min-height: var(--tap);
  font-size:15px;
  font-weight:850;
  letter-spacing:.02em;
  cursor:pointer;
  color:#062035;
  background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.64));
  box-shadow: 0 12px 26px rgba(0,0,0,.12);
  transition: transform .08s ease, box-shadow .2s ease;
  position:relative;
  overflow:hidden;
  touch-action:manipulation;
}
.btn::before{
  content:"";
  position:absolute;
  inset:-2px;
  background: radial-gradient(360px 140px at 20% 0%, rgba(120,200,255,.58), rgba(120,200,255,0) 60%);
  opacity:.95;
  pointer-events:none;
}
.btn:active{ transform: translateY(1px); box-shadow: 0 10px 18px rgba(0,0,0,.10); }
.btn[disabled]{ opacity:.68; cursor:not-allowed; }

.toast{
  margin-top:10px;
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
  min-height:1.7em;
  word-break:break-word;
}
.toast.ok{ color:var(--ok); }
.toast.err{ color:var(--err); }

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap:14px;
}
@media (min-width:900px){
  .grid.two{ grid-template-columns: 380px 1fr; align-items:start; }
  .grid.three{ grid-template-columns: 1fr 1fr 1fr; align-items:start; }
}

/* ===== Common panel / board (messages などで使用) ===== */
.board{
  border-radius:var(--radius);
  border:1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.38), rgba(255,255,255,.12));
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding:14px;
  position:relative;
  overflow:hidden;
}
.boardTop{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:4px 4px 10px;
  border-bottom:1px solid rgba(11,27,43,.08);
  position:relative;
  z-index:2;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.62);
  background: rgba(255,255,255,.22);
  font-size:12px;
  color: rgba(11,27,43,.80);
}
.dot{
  width:8px;
  height:8px;
  border-radius:999px;
  background: rgba(120,200,255,.95);
  box-shadow: 0 0 0 4px rgba(120,200,255,.22);
}
.count{ font-weight:850; color: rgba(11,27,43,.86); white-space:nowrap; }

.footer{
  text-align:center;
  color: rgba(11,27,43,.52);
  font-size:12px;
  margin-top:6px;
}

/* =========================
   Embedded Media (Video/Iframe)
   ========================= */

.mediaFrame{
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.62);
  background: rgba(255,255,255,.16);
  box-shadow: 0 18px 60px rgba(0,0,0,.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  position: relative;
}

.mediaFrame::before{
  content:"";
  position:absolute;
  inset:-2px;
  background:
    radial-gradient(520px 240px at 18% 10%, rgba(255,255,255,.55), rgba(255,255,255,0) 62%),
    radial-gradient(520px 260px at 85% 80%, rgba(120,200,255,.25), rgba(120,200,255,0) 62%);
  opacity:.85;
  pointer-events:none;
  mix-blend-mode: soft-light;
}

/* 16:9（YouTubeっぽい） */
.mediaFrame.r16x9{
  aspect-ratio: 16 / 9;
}

/* 縦動画（ショート/リールっぽい） */
.mediaFrame.r9x16{
  aspect-ratio: 9 / 16;
  max-width: 520px; /* PCで横に広がりすぎないように */
  margin-left: auto;
  margin-right: auto;
}

/* video / iframe 共通で枠いっぱいに */
.mediaFrame video,
.mediaFrame iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:0;
  display:block;
}

/* videoをよりリッチに */
.mediaFrame video{
  object-fit: cover; /* 余白ゼロで美しく */
  background: rgba(3,18,36,.20);
}

/* キャプション */
.mediaCaption{
  margin-top:10px;
  font-size:12.5px;
  line-height:1.7;
  color: var(--muted);
}