.mania-sm{
  /* Mania-like dark UI defaults (override safely if needed) */
  --sm-accent: #8735ff; /* violet */
  --sm-accent2:#00e5ff; /* neon cyan */
  --sm-accent3:#00c853; /* neon green (done) */
  --sm-bg:     #0b0f14;
  --sm-panel:  rgba(255,255,255,.04);
  --sm-border: rgba(135,53,255,.45);
  --sm-text:   rgba(255,255,255,.92);
  --sm-muted:  rgba(255,255,255,.65);
  --sm-btn:    #000;
  --sm-btn-text:#fff;
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
}

/* Ensure the HTML [hidden] attribute always wins inside this widget.
   (Author CSS can override UA default display:none, so we enforce it.) */
.mania-sm [hidden]{
  display: none !important;
}
.mania-sm__card{
  position: relative;
  background:
    radial-gradient(900px 260px at 15% 0%, rgba(0,229,255,.22), transparent 55%),
    radial-gradient(700px 240px at 80% 10%, rgba(135,53,255,.22), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.02) 0%, rgba(0,0,0,0) 38%),
    var(--sm-bg);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 18px;
  box-shadow:
    0 18px 55px rgba(0,0,0,.55),
    0 0 0 1px rgba(0,229,255,.10);
  overflow: hidden;
}
.mania-sm__card::before{
  content:"";
  position:absolute;
  inset:-1px;
  border-radius: 18px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(0,229,255,.85), rgba(135,53,255,.75), rgba(0,200,83,.65));
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: .78;
  pointer-events:none;
  animation: maniaSmGlow 3.2s ease-in-out infinite;
}
.mania-sm__card::after{
  content:"";
  position:absolute;
  inset: -18px;
  background: radial-gradient(closest-side, rgba(0,229,255,.12), transparent 60%);
  filter: blur(18px);
  opacity:.85;
  pointer-events:none;
}

@keyframes maniaSmGlow{
  0%,100%{ opacity:.68; filter: saturate(1); }
  50%{ opacity:.95; filter: saturate(1.2); }
}
.mania-sm__hero{ background: rgba(255,255,255,.02); }
.mania-sm__heroImg{ width:100%; height:auto; display:block; }
.mania-sm__steps{
  display:flex; align-items:center; gap:10px;
  padding: 14px 14px 0;
  flex-wrap: wrap;
}
.mania-sm__back{
  width: 38px; height:38px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--sm-text);
  cursor:pointer;
  font-size:22px; line-height:1;
}
.mania-sm__stepNums{ display:flex; gap:6px; flex-wrap:wrap; }
.mania-sm__stepNums button{
  width:34px; height:34px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: var(--sm-text);
  cursor:pointer;
  font-weight:800;
  box-shadow: 0 0 0 rgba(0,0,0,0);
}
.mania-sm__stepNums button.is-active{
  background: linear-gradient(135deg, rgba(0,229,255,.95) 0%, rgba(135,53,255,.95) 55%, rgba(0,229,255,.85) 100%);
  border-color: rgba(255,255,255,.0);
  color:#fff;
  box-shadow: 0 0 18px rgba(0,229,255,.25), 0 0 22px rgba(135,53,255,.18);
}
.mania-sm__stepNums button.is-done{
  background: linear-gradient(135deg, rgba(0,200,83,.85) 0%, rgba(0,229,255,.55) 100%);
  border-color: rgba(255,255,255,.0);
  color:#08110b;
  box-shadow: 0 0 14px rgba(0,200,83,.18);
}
.mania-sm__stepNums button.is-upcoming{
  opacity: .72;
}

/* progress bar */
.mania-sm__progress{
  flex: 1 1 220px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
  overflow: hidden;
  min-width: 180px;
}
.mania-sm__progressIn{
  display:block;
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(0,229,255,.95), rgba(135,53,255,.92));
  box-shadow: 0 0 18px rgba(0,229,255,.18);
  position: relative;
}
.mania-sm__progressIn::after{
  content:"";
  position:absolute;
  top:-50%;
  left:-30%;
  width: 40%;
  height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.22), transparent);
  transform: skewX(-20deg);
  animation: maniaSmSweep 2.2s linear infinite;
}

@keyframes maniaSmSweep{
  0%{ left:-35%; opacity:0; }
  10%{ opacity:.9; }
  100%{ left: 110%; opacity:0; }
}
.mania-sm__panel{ padding: 18px 18px 22px; color: var(--sm-text); }
.mania-sm__guide{
  text-align:center;
  margin: 10px 0 10px;
  color: var(--sm-muted);
  font-weight: 700;
}
.mania-sm__label{ text-align:center; margin: 8px 0 10px; font-weight:800; }
.mania-sm__row{ display:flex; gap:12px; justify-content:center; align-items:center; flex-wrap:wrap; }
.mania-sm__input{
  width: min(520px, 100%);
  height:46px; padding:10px 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.25);
  color: var(--sm-text);
  border-radius: 12px;
  font-size:16px;
  box-shadow: 0 0 0 rgba(0,0,0,0);
}
.mania-sm__input:focus{
  outline: none;
  border-color: rgba(0,229,255,.55);
  box-shadow: 0 0 0 1px rgba(0,229,255,.25), 0 0 22px rgba(0,229,255,.12);
}
.mania-sm__input::placeholder{ color: rgba(255,255,255,.45); }
.mania-sm__btn{
  height:46px; padding:0 18px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0,229,255,.95) 0%, rgba(135,53,255,.95) 55%, rgba(0,229,255,.80) 100%);
  color: var(--sm-btn-text);
  font-weight:900;
  cursor:pointer;
  box-shadow: 0 0 22px rgba(0,229,255,.12), 0 0 30px rgba(135,53,255,.10);
}
.mania-sm__btn:hover{ filter: brightness(1.07); box-shadow: 0 0 22px rgba(0,229,255,.16), 0 0 26px rgba(135,53,255,.12); }
.mania-sm__hint{ text-align:center; color: var(--sm-muted); margin-top:10px; }
.mania-sm__qbar{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  padding: 14px 14px;
  margin: 10px 0 0;
}
.mania-sm__qtext{ margin:0; color: var(--sm-text); font-weight:800; }
.mania-sm__answers{
  margin-top: 12px;
  display:flex;
  flex-direction: column;
  gap: 10px;
}
.mania-sm__ans{
  width:100%; text-align:left;
  padding:14px 12px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  background: rgba(255,255,255,.04);
  color: var(--sm-text);
  cursor:pointer;
  font-size:16px;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease;
}
.mania-sm__ans:hover{
  background: rgba(0,229,255,.08);
  border-color: rgba(0,229,255,.35);
  box-shadow: 0 0 20px rgba(0,229,255,.12);
  transform: translateY(-1px);
}
.mania-sm__ans:active{ transform: translateY(0); }
.mania-sm__loading{ text-align:center; font-weight:800; padding:40px 0; }
.mania-sm__errorTitle{ text-align:center; font-weight:900; font-size:18px; margin: 10px 0; }
.mania-sm__errorText{ text-align:center; color: var(--sm-muted); margin: 0 0 16px; }
@media (max-width:600px){
  .mania-sm__card{ border-radius: 16px; }
  .mania-sm__btn{ width:100%; }
  .mania-sm__row{ justify-content:stretch; }
}

/* SM診断 結果ページ：ボタン文字色を白に固定 */
.mania-sm-result .mania-sm__btn {
  color: #ffffff !important;
}

/* Xでシェア：文字をくっきり＋ネオングロー */
.mania-sm-result .mania-sm__btn {
  color: #ffffff !important;
  text-shadow: 0 0 2px rgba(255,255,255,0.6);
}