:root{
  --bg:#070A12;
  --fg:#E9EEFF;
  --muted:#9AA4C0;
  --card: rgba(255,255,255,.06);
  --line: rgba(255,255,255,.10);
  --glow: rgba(255,255,255,.12);
}

/* ---------- Reset / Base ---------- */
*{ box-sizing:border-box }
html,body{ height:100% }

body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 50% -200px, rgba(120,160,255,.08), transparent 60%),
    var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", sans-serif;
  letter-spacing:.02em;
}

/* ---------- Layout ---------- */
.wrap{
  max-width:980px;
  margin:0 auto;
  padding:24px;
}

.row{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
}

/* ---------- Card ---------- */
.card{
  position:relative;
  border:1px solid var(--line);
  background: linear-gradient(
    180deg,
    rgba(255,255,255,.08),
    rgba(255,255,255,.03)
  );
  border-radius:18px;
  padding:18px;
  backdrop-filter: blur(10px);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.06),
    0 20px 40px rgba(0,0,0,.35);
}

/* ---------- Text ---------- */
.h1{
  font-size:28px;
  margin:0 0 10px;
  letter-spacing:.04em;
}

.p{
  color:var(--muted);
  line-height:1.7;
  margin:0 0 16px;
}

.small{
  font-size:12px;
  color:var(--muted);
}

/* ---------- Buttons ---------- */
.btn{
  appearance:none;
  border:1px solid var(--line);
  background:
    linear-gradient(
      180deg,
      rgba(255,255,255,.14),
      rgba(255,255,255,.04)
    );
  color: var(--fg);
  padding:12px 16px;
  border-radius:16px;
  font-weight:700;
  cursor:pointer;
  transition:
    transform .12s ease,
    box-shadow .12s ease,
    background .12s ease;
}

.btn:hover{
  background:
    linear-gradient(
      180deg,
      rgba(255,255,255,.20),
      rgba(255,255,255,.06)
    );
  box-shadow: 0 0 0 1px var(--glow);
}

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

.btn[disabled]{
  opacity:.45;
  cursor:not-allowed;
}

/* ---------- Canvas Box ---------- */
.canvasBox{
  position:relative;
  border-radius:18px;
  overflow:hidden;
  border:1px solid var(--line);
  background: radial-gradient(
    600px 300px at 50% 60%,
    rgba(255,255,255,.06),
    transparent 70%
  );
}

/* Canvas itself */
canvas{
  display:block;
  width:100%;
  height:520px;
}

/* ---------- Bottle Image Overlay ---------- */
/* bottle.html で <img id="bottleImg"> を canvas の上に重ねる前提 */

.canvasBox img{
  position:absolute;
  inset:0;
  margin:auto;
  max-height:82%;
  max-width:42%;
  opacity:0;
  pointer-events:none;
  transition:
    opacity .8s ease,
    transform 1.2s ease;
  filter:
    drop-shadow(0 0 20px rgba(255,255,255,.15))
    drop-shadow(0 0 60px rgba(255,255,255,.10));
}

/* 表示ON */
.canvasBox img.isOn{
  opacity:1;
}

/* ゆっくり浮遊 */
.canvasBox img.isFloat{
  animation: bottleFloat 6s ease-in-out infinite;
}

@keyframes bottleFloat{
  0%   { transform: translateY(0px); }
  50%  { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

/* ---------- Candidate List ---------- */
#list .btn{
  flex:1;
  min-width:220px;
}

/* ---------- Subtle Dividers ---------- */
.card + .card{
  margin-top:12px;
}

/* ---------- Responsive ---------- */
@media (max-width:720px){
  canvas{ height:420px; }
  .canvasBox img{
    max-width:60%;
  }
}

/* =========================
   Result page: bottle image
   ========================= */

/* result.html のボトル画像をカード内に収める */
#resultBottleImg{
  width: 100%;
  max-width: 220px;   /* ←好みで 180〜260 */
  max-height: 160px;  /* ←好みで 140〜200 */
  height: auto;
  display: block;
  margin: 10px auto 0;
  object-fit: contain;
  filter:
    drop-shadow(0 0 18px rgba(255,255,255,0.18));
}

/* はみ出し保険（ボトル画像の親側で効く） */
#resultBottleImg{
  overflow: hidden;
}

/* =========================
   Shared Site Header
   ========================= */
.site-nav{
  position: sticky;
  top: 0;
  z-index: 9999;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.site-nav__inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:12px 16px;
}
.site-nav__home{
  font-weight:900;
  color:#3b82f6;
  text-decoration:none;
  display:flex;
  align-items:center;
  gap:6px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", sans-serif;
}
.site-nav__homeIcon{ font-size:18px; line-height:1; }
.site-nav__homeText{ font-size:14px; letter-spacing:-0.02em; }
.site-nav__link{
  font-size:12px;
  color:var(--muted);
  font-weight:900;
  text-decoration:none;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", sans-serif;
}
@media (max-width: 480px){
  .site-nav__inner{ padding:10px 12px; }
  .site-nav__homeText{ font-size:13px; }
}