:root {
  --bg1: #050816;
  --bg2: #0d1436;
  --card: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.12);
  --text: #e9edff;
  --sub: #9fabd8;
  --gold: #ffd166;
  --myth: #c4b0ff;
  --modern: #5eead4;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: "Hiragino Maru Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  background:
    radial-gradient(1200px 600px at 50% -10%, #1a2350 0%, transparent 60%),
    linear-gradient(180deg, var(--bg2) 0%, var(--bg1) 45%);
  background-color: var(--bg1);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.75;
}

.container { max-width: 720px; margin: 0 auto; padding: 18px 14px 40px; }

/* ---------- ヘッダー ---------- */
.app-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 10px; margin-bottom: 14px;
}
.app-head h1 {
  font-size: 24px; letter-spacing: 0.06em;
  color: #fff;
  text-shadow: 0 0 18px rgba(140, 170, 255, 0.55);
}
.tag { font-size: 12px; color: var(--sub); margin-top: 2px; }
.proto {
  display: inline-block; margin-top: 6px;
  font-size: 10px; color: var(--gold);
  border: 1px solid rgba(255, 209, 102, 0.45);
  border-radius: 999px; padding: 1px 10px;
}
.progress {
  flex-shrink: 0;
  font-size: 13px; font-weight: bold; color: var(--gold);
  background: rgba(255, 209, 102, 0.1);
  border: 1px solid rgba(255, 209, 102, 0.35);
  border-radius: 12px; padding: 6px 12px;
  white-space: nowrap;
}

/* ---------- 検索ボックス ---------- */
.search-box {
  width: 100%;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 14px;
  margin-bottom: 10px;
  outline: none;
}
.search-box:focus { border-color: rgba(255, 209, 102, 0.55); }
.search-box::placeholder { color: var(--sub); opacity: 0.8; }

/* ---------- 絞り込みチップ ---------- */
.chips {
  display: flex; gap: 8px; overflow-x: auto;
  padding-bottom: 10px; margin-bottom: 8px;
  scrollbar-width: none;
}
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex-shrink: 0;
  font-size: 12px; color: var(--sub);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px; padding: 5px 14px;
  cursor: pointer; transition: all 0.15s;
  font-family: inherit;
}
.chip.active {
  color: #101427; background: var(--gold);
  border-color: var(--gold); font-weight: bold;
}

/* ---------- 一覧カード ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
  gap: 12px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
}
.card:active { transform: scale(0.97); }
.card:hover { border-color: rgba(255, 209, 102, 0.5); }
.card canvas { display: block; width: 100%; height: 128px; }
.card-body { padding: 10px 12px 12px; }
.card-name { font-size: 15px; font-weight: bold; }
.card-tagline { font-size: 11px; color: var(--sub); margin: 2px 0 8px; }

/* ---------- バッジ ---------- */
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge {
  font-size: 10px; border-radius: 999px; padding: 2px 9px;
  border: 1px solid var(--line); color: var(--sub);
}
.badge.myth { color: var(--myth); border-color: rgba(196, 176, 255, 0.4); background: rgba(167, 139, 250, 0.12); }
.badge.modern { color: var(--modern); border-color: rgba(94, 234, 212, 0.4); background: rgba(94, 234, 212, 0.1); }
.badge.found { color: var(--gold); border-color: rgba(255, 209, 102, 0.5); background: rgba(255, 209, 102, 0.12); font-weight: bold; }

/* ---------- 詳細 ---------- */
.hidden { display: none !important; }

.detail-head { margin: 14px 0 10px; }
.detail-head h2 { font-size: 26px; letter-spacing: 0.04em; }
.detail-head .badges { margin: 8px 0; }
.tagline-big { font-size: 13px; color: var(--sub); }

.detail-canvas {
  display: block; width: 100%; aspect-ratio: 4 / 3;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: radial-gradient(900px 500px at 50% 0%, #131c44 0%, #070b20 70%);
}
.canvas-note { font-size: 10px; color: var(--sub); margin: 6px 2px 0; }

.cta-row { margin: 14px 0; }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.panel h3 { font-size: 14px; margin-bottom: 8px; color: #fff; }
.panel p { font-size: 13.5px; }
.story { text-align: justify; }
.note { font-size: 11px; color: var(--sub); margin-top: 8px; }

.data-table { display: grid; grid-template-columns: 6.5em 1fr; row-gap: 6px; font-size: 13px; }
.data-table dt { color: var(--sub); }
.data-table dd { margin: 0; }

/* ---------- ボタン ---------- */
.btn {
  font-family: inherit;
  border-radius: 12px; padding: 12px 18px;
  font-size: 14px; font-weight: bold;
  cursor: pointer; transition: transform 0.1s, opacity 0.15s;
  border: none;
}
.btn:active { transform: scale(0.97); }
.btn.primary {
  width: 100%;
  color: #241a00;
  background: linear-gradient(135deg, #ffe29a, #ffc94d);
  box-shadow: 0 4px 18px rgba(255, 200, 80, 0.25);
}
.btn.ghost {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--line);
}
.btn.small { font-size: 12px; padding: 7px 12px; font-weight: normal; }
.btn.ghost.on { color: var(--gold); border-color: rgba(255, 209, 102, 0.55); }
.btn.wide { width: 100%; margin-top: 8px; }

/* もどるボタン（大きく・押せる見た目に） */
.btn.back {
  font-size: 14px;
  font-weight: bold;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 12px;
}
.btn.back:hover { color: var(--gold); border-color: rgba(255, 209, 102, 0.6); }
.hud .btn.back { padding: 10px 14px; font-size: 13px; }

/* ---------- マイ星空マップ ---------- */
.skymap-btn {
  width: 100%; margin-bottom: 12px;
  color: var(--text);
  background: linear-gradient(135deg, #1c2554, #101736);
  border: 1px solid rgba(140, 170, 255, 0.35);
  box-shadow: 0 4px 18px rgba(80, 110, 255, 0.18);
}
.sky-canvas {
  display: block; width: 100%; aspect-ratio: 1.85 / 1;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: radial-gradient(900px 500px at 50% 0%, #131c44 0%, #070b20 75%);
}
.sky-wrap { position: relative; }
/* マップで星座タップ時の名前ポップアップ（タップで図鑑へ） */
.sky-pop {
  position: absolute;
  transform: translate(-50%, -100%);
  font-family: inherit;
  font-size: 13px; font-weight: bold;
  color: #241a00;
  background: linear-gradient(135deg, #ffe29a, #ffc94d);
  border: none; border-radius: 999px;
  padding: 9px 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45), 0 0 12px rgba(255, 200, 80, 0.35);
  cursor: pointer;
  white-space: nowrap;
  z-index: 2;
  animation: sky-pop-in 0.16s ease-out;
}
.sky-pop::after {
  content: "";
  position: absolute;
  left: 50%; top: 100%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: #ffc94d;
}
.sky-pop.below { transform: translate(-50%, 0); }
.sky-pop.below::after {
  top: auto; bottom: 100%;
  border-top-color: transparent;
  border-bottom-color: #ffe29a;
}
.sky-pop:active { transform: translate(-50%, -100%) scale(0.96); }
.sky-pop.below:active { transform: translate(-50%, 0) scale(0.96); }
@keyframes sky-pop-in { from { opacity: 0; } to { opacity: 1; } }
.g-help .gold, .canvas-note .gold { color: var(--gold); font-weight: bold; }

/* ---------- 4択クイズ ---------- */
.quiz-row { display: flex; gap: 10px; margin-bottom: 12px; }
.quiz-btn {
  flex: 1;
  color: var(--text);
  background: linear-gradient(135deg, #3a2a5e, #221740);
  border: 1px solid rgba(196, 176, 255, 0.35);
  box-shadow: 0 4px 18px rgba(140, 90, 255, 0.15);
  font-size: 13px;
}
.quiz-canvas {
  display: block; width: 100%; aspect-ratio: 4 / 3;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: radial-gradient(900px 500px at 50% 0%, #131c44 0%, #070b20 70%);
  margin-bottom: 12px;
}
#q-myth { max-height: 40vh; overflow-y: auto; }
.q-options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.q-opt {
  font-family: inherit;
  font-size: 14px; font-weight: bold; color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 10px;
  cursor: pointer;
  transition: transform 0.1s, border-color 0.15s;
}
.q-opt:active { transform: scale(0.97); }
.q-opt.correct { color: #241a00; background: linear-gradient(135deg, #ffe29a, #ffc94d); border-color: transparent; }
.q-opt.wrong { border-color: rgba(255, 110, 110, 0.7); color: #ff9d9d; }
.q-opt:disabled { cursor: default; opacity: 0.9; }
.q-feedback { font-size: 14px; font-weight: bold; min-height: 1.6em; margin-bottom: 10px; }
.q-feedback.good { color: var(--gold); }
.q-feedback.bad { color: #ff9d9d; }
.q-result { text-align: center; }
.q-result .big { font-size: 30px; color: var(--gold); font-weight: bold; margin: 6px 0; }
.q-result .btn { margin-top: 12px; }

/* ---------- 星つなぎ ---------- */
.hud {
  display: flex; justify-content: space-between; align-items: center;
  gap: 8px; margin-bottom: 10px;
}
.hud-right { display: flex; gap: 6px; }
.g-count { font-size: 13px; font-weight: bold; color: var(--gold); white-space: nowrap; }
.g-name { font-size: 20px; margin-bottom: 2px; }
.g-help { font-size: 11.5px; color: var(--sub); margin-bottom: 10px; }
.game-canvas {
  display: block; width: 100%; aspect-ratio: 1 / 1;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: radial-gradient(700px 700px at 50% 20%, #131c44 0%, #070b20 75%);
  touch-action: none;
}

/* ---------- 完成オーバーレイ ---------- */
.overlay {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(4, 7, 20, 0.88);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.ov-card { text-align: center; max-width: 420px; width: 100%; position: relative; }
.ov-sub {
  font-size: 14px; letter-spacing: 0.3em; color: var(--sub);
  margin-bottom: 6px;
}
.ov-name {
  font-size: 34px; color: var(--gold);
  text-shadow: 0 0 24px rgba(255, 200, 80, 0.7);
  margin-bottom: 10px;
}
.ov-msg { font-size: 13px; color: var(--text); margin-bottom: 22px; }
.ov-btns { display: flex; flex-direction: column; gap: 10px; }
.ov-sparkles span {
  position: absolute; color: var(--gold); opacity: 0;
  animation: spark 1.8s ease-in-out infinite;
  font-size: 18px;
}
.ov-sparkles span:nth-child(1) { left: 6%;  top: -46px; animation-delay: 0s; }
.ov-sparkles span:nth-child(2) { left: 88%; top: -30px; animation-delay: 0.3s; font-size: 13px; }
.ov-sparkles span:nth-child(3) { left: 20%; top: 40px;  animation-delay: 0.6s; font-size: 12px; }
.ov-sparkles span:nth-child(4) { left: 74%; top: 66px;  animation-delay: 0.9s; }
.ov-sparkles span:nth-child(5) { left: 45%; top: -60px; animation-delay: 1.2s; font-size: 14px; }
.ov-sparkles span:nth-child(6) { left: 60%; top: 30px;  animation-delay: 1.5s; font-size: 11px; }
@keyframes spark {
  0%, 100% { opacity: 0; transform: scale(0.5) rotate(0deg); }
  50% { opacity: 1; transform: scale(1.2) rotate(25deg); }
}

/* ---------- フッター ---------- */
footer { margin-top: 30px; }
footer p { font-size: 10px; color: var(--sub); margin-bottom: 6px; }

/* ---------- PCレイアウト（マップと一覧は広く、読み物は読みやすい幅を維持） ---------- */
@media (min-width: 1024px) {
  .container { max-width: 1180px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(185px, 1fr)); gap: 14px; }
  #view-detail { max-width: 720px; margin: 0 auto; }
  #view-game { max-width: 620px; margin: 0 auto; }
  /* 全天図は画面の高さに収まる範囲でできるだけ大きく */
  .sky-canvas { width: min(100%, calc((100vh - 290px) * 1.85)); margin: 0 auto; }
  #view-sky .canvas-note { text-align: center; }
}