/* mirai-saiyo.com — 中間LP 専用 CSS
   Tailwind CDN を主に使い、ここでは反復するコンポーネントだけ書く */

html { scroll-behavior: smooth; }
body {
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}

/* iOS safe-area */
header, footer {
  padding-left: max(env(safe-area-inset-left), 1rem);
  padding-right: max(env(safe-area-inset-right), 1rem);
}

/* 入力フォントは 16px 以上（iOS の自動ズーム抑止） */
input, select, textarea, button { font-size: 16px; }

/* 進行度ピル */
.step-pill {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: #F1F5F9;
  color: #94A3B8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  transition: background-color .2s, color .2s, transform .2s;
}
.step-pill.active {
  background: #6366F1;
  color: #fff;
  transform: scale(1.05);
}
.step-pill.done {
  background: #10B981;
  color: #fff;
}

/* オプションカード（ラジオラベル） */
.option-card {
  display: block;
  position: relative;
  padding: 16px 18px 16px 48px;
  border: 1.5px solid #E2E8F0;
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: #0F172A;
  transition: border-color .15s, background-color .15s, box-shadow .15s;
}
.option-card:hover {
  border-color: #A5B4FC;
  background: #F5F3FF;
}
.option-card input[type="radio"] {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid #CBD5E1;
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.option-card input[type="radio"]:checked {
  border-color: #6366F1;
  background: radial-gradient(circle, #6366F1 0 6px, #fff 7px 100%);
}
.option-card:has(input:checked) {
  border-color: #6366F1;
  background: #EEF2FF;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* スクロール時フェードイン */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease-out, transform .6s ease-out;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ローディングスピナー（フォーム送信中） */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 999px;
  animation: spin .7s linear infinite;
  display: inline-block;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* reduced-motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transition: none; transform: none; opacity: 1; }
  .spinner { animation: none; }
}