:root {
  --bg: #1b1530;
  --panel: #2a2140;
  --ink: #f4ecd8;
  --muted: #b9add0;
  --accent: #d9a441;
  --line: #4a3d6b;
  font-family: 'Noto Sans JP', 'Noto Sans CJK JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    radial-gradient(#f4ecd855 1px, transparent 1px),
    radial-gradient(#f4ecd833 1px, transparent 1px);
  background-size: 64px 64px, 37px 37px;
  background-position: 0 0, 19px 23px;
  color: var(--ink);
  line-height: 1.7;
}

main {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.screen { display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center; }
.screen[hidden] { display: none; }

h1 { font-size: 2.4rem; margin: 0; letter-spacing: 0.08em; color: var(--accent); text-shadow: 3px 3px 0 #000; }
h2 { font-size: 1.35rem; margin: 0; }
h3 { font-size: 1.1rem; margin: 0; }
.eyebrow { margin: 0; color: var(--muted); font-size: 0.85rem; letter-spacing: 0.1em; }
.lead { margin: 0; }
.body { margin: 0; text-align: left; }
.note { margin: 0; color: var(--muted); font-size: 0.8rem; }
.notice { padding: 12px; border: 3px solid var(--accent); }

.btn {
  display: inline-block;
  min-width: 200px;
  padding: 12px 20px;
  border: 3px solid var(--ink);
  border-radius: 0;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 4px 4px 0 #000;
}
.btn:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 #000; }
.btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.btn--primary { background: var(--accent); color: #1b1530; border-color: #1b1530; }
.btn--ghost { background: transparent; box-shadow: none; border-color: var(--line); color: var(--muted); }

.card { width: 240px; image-rendering: pixelated; }
.card--small { width: 120px; flex: none; }
.card svg { display: block; width: 100%; height: auto; }

.from { display: flex; flex-direction: column; align-items: center; gap: 8px; }

.bar { width: 100%; height: 12px; border: 3px solid var(--ink); background: var(--panel); }
.bar__fill { height: 100%; width: 0; background: var(--accent); transition: width 0.2s; }

.options { display: flex; flex-direction: column; gap: 12px; width: 100%; }
.options .btn { width: 100%; text-align: left; font-weight: 500; }

.flip { width: 240px; aspect-ratio: 3 / 5; padding: 0; border: 0; background: none; cursor: pointer; perspective: 1000px; }
.flip__inner { position: relative; display: block; width: 100%; height: 100%; transform-style: preserve-3d; transition: transform 0.6s; }
.flip.is-flipped .flip__inner { transform: rotateY(180deg); }
.flip__face { position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.flip__face svg { width: 100%; height: auto; display: block; }
.flip__face--front { transform: rotateY(180deg); }

.result-title { font-size: 1.8rem; color: var(--accent); }

.match {
  display: flex;
  gap: 16px;
  align-items: center;
  width: 100%;
  padding: 16px;
  border: 3px solid var(--line);
  background: var(--panel);
  text-align: left;
}

.compat { width: 100%; padding: 16px; border: 3px solid var(--accent); background: var(--panel); }
.compat__percent { margin: 0; font-size: 3rem; font-weight: 700; color: var(--accent); line-height: 1.1; }
.compat__label { margin: 0; font-weight: 700; font-size: 1.2rem; }

.share { width: 100%; display: flex; flex-direction: column; gap: 10px; align-items: stretch; }
.share__buttons { display: flex; flex-direction: column; gap: 10px; align-items: stretch; }
.field { display: flex; flex-direction: column; gap: 4px; text-align: left; font-size: 0.9rem; }
.field input, .copy-fallback {
  padding: 10px;
  border: 3px solid var(--ink);
  border-radius: 0;
  background: #120e22;
  color: var(--ink);
  font: inherit;
}

/* 広告ブロッカーで空になってもレイアウトが崩れないよう高さを固定 */
.ad { width: 100%; min-height: 250px; }

/* レアカード */
.rare-badge {
  margin: 0;
  padding: 4px 14px;
  border: 3px solid #1b1530;
  background: linear-gradient(90deg, #ffd66b, #ff9fb8, #9ccff0, #ffd66b);
  background-size: 300% 100%;
  color: #1b1530;
  font-weight: 700;
  box-shadow: 4px 4px 0 #000;
  animation: rare-shine 2s linear infinite;
}
.rare-badge[hidden] { display: none; }
.card--rare, .flip--rare.is-flipped { animation: rare-glow 1.2s ease-in-out infinite alternate; }
@keyframes rare-shine { to { background-position: 300% 0; } }
@keyframes rare-glow {
  from { filter: drop-shadow(0 0 4px #ffd66b); }
  to { filter: drop-shadow(0 0 14px #ff9fb8); }
}

@media (prefers-reduced-motion: reduce) {
  .flip__inner, .bar__fill { transition: none; }
  .rare-badge, .card--rare, .flip--rare.is-flipped { animation: none; }
}