/* ===== テーマ ===== */
:root {
  --bg:        #f4f2ee;
  --bg-raised: #ffffff;
  --bg-sunken: #e8e4dd;
  --ink:       #1c1b19;
  --ink-mute:  #6b6761;
  --line:      #d8d3ca;
  --accent:    #9a3b2a;
  --accent-ink:#ffffff;
  --ok:        #2f6b46;
  --ok-bg:     #e2efe7;
  --ng:        #a3342c;
  --ng-bg:     #f6e3e1;
  --shadow:    0 1px 2px rgba(0,0,0,.05), 0 8px 24px rgba(0,0,0,.06);
  --radius:    10px;
}
:root[data-theme="dark"] {
  --bg:        #131313;
  --bg-raised: #1d1d1c;
  --bg-sunken: #0d0d0d;
  --ink:       #ece9e3;
  --ink-mute:  #9b968d;
  --line:      #333330;
  --accent:    #d0674f;
  --accent-ink:#1a1a19;
  --ok:        #7dc79b;
  --ok-bg:     #1c2f24;
  --ng:        #e0796d;
  --ng-bg:     #33201d;
  --shadow:    0 1px 2px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP",
               "Yu Gothic Medium", "Yu Gothic", Meiryo, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ===== ヘッダー / フッター ===== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 20px 8px;
}
.site-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .12em;
}
.icon-btn {
  border: 1px solid var(--line);
  background: var(--bg-raised);
  color: var(--ink-mute);
  border-radius: 999px;
  width: 34px; height: 34px;
  font-size: 15px;
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.icon-btn:hover { color: var(--ink); border-color: var(--ink-mute); }

.site-footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 20px 48px;
  color: var(--ink-mute);
  font-size: 12px;
  line-height: 1.6;
}
.site-footer p { margin: 0; }
.build { margin-top: 4px !important; opacity: .6; font-variant-numeric: tabular-nums; }

/* ===== レイアウト ===== */
#app { max-width: 760px; margin: 0 auto; padding: 8px 20px 0; }
.screen { animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ===== スタート画面 ===== */
.lead {
  font-size: 18px;
  line-height: 2;
  margin: 24px 0 32px;
}
.field { margin-bottom: 24px; }
.field-label {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink-mute);
  margin-bottom: 8px;
}
.field-note { font-size: 12px; color: var(--ink-mute); margin: 8px 0 0; }
.seg { display: inline-flex; flex-wrap: wrap; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--bg-raised); }
.seg-btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ink-mute);
  font: inherit;
  font-size: 14px;
  padding: 8px 20px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.seg-btn + .seg-btn { border-left: 1px solid var(--line); }
.seg-btn.is-active { background: var(--ink); color: var(--bg); }

.roster { margin-top: 44px; border-top: 1px solid var(--line); padding-top: 20px; }
.roster-title { font-size: 12px; letter-spacing: .14em; color: var(--ink-mute); margin: 0 0 12px; }
.roster-list {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 4px 20px;
}
.roster-list li { font-size: 14px; display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px dotted var(--line); padding: 5px 0; }
.roster-list span { color: var(--ink-mute); font-size: 12px; white-space: nowrap; }

/* ===== ボタン ===== */
.btn {
  appearance: none;
  font: inherit;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform .08s, background .15s, border-color .15s, color .15s;
}
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 14px 28px; font-size: 16px; font-weight: 700; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--ink-mute); border: 1px solid var(--line); padding: 14px 24px; font-size: 15px; }
.btn-ghost:hover { color: var(--ink); border-color: var(--ink-mute); }

/* ===== 進捗 ===== */
.progress { margin: 16px 0 20px; }
.progress-meta {
  display: flex; justify-content: space-between;
  font-size: 12px; letter-spacing: .1em; color: var(--ink-mute); margin-bottom: 8px;
}
.progress-bar { height: 3px; background: var(--bg-sunken); border-radius: 2px; overflow: hidden; }
.progress-fill { height: 100%; width: 0; background: var(--accent); transition: width .3s ease; }

/* ===== 写真 ===== */
.photo { margin: 0 0 24px; }
.photo-frame {
  position: relative;
  background: var(--bg-sunken);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  display: flex; align-items: center; justify-content: center;
}
@media (min-width: 640px) { .photo-frame { aspect-ratio: 16 / 10; } }
.photo-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity .4s ease;
}
.photo-frame.is-ready img { opacity: 1; }
.photo-status {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 24px; text-align: center;
  color: var(--ink-mute); font-size: 13px; line-height: 1.8;
}
.photo-frame.is-ready .photo-status { display: none; }
.spinner {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid var(--line); border-top-color: var(--ink-mute);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.photo-caption { font-size: 12px; color: var(--ink-mute); margin: 8px 2px 0; }
.photo-caption a { color: inherit; }

.prompt { font-size: 15px; color: var(--ink-mute); margin: 0 0 12px; letter-spacing: .04em; }

/* ===== 選択肢 ===== */
.choices {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
}
.choice {
  appearance: none;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  line-height: 1.4;
  padding: 12px 14px;
  min-height: 52px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-raised);
  color: var(--ink);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform .08s, border-color .15s, background .15s;
}
.choice:hover:not(:disabled) { border-color: var(--ink-mute); transform: translateY(-1px); }
.choice:active:not(:disabled) { transform: none; }
.choice:disabled { cursor: default; box-shadow: none; }
.choice.is-dim { opacity: .38; }
.choice.is-correct {
  background: var(--ok-bg); border-color: var(--ok); color: var(--ok); opacity: 1;
}
.choice.is-wrong {
  background: var(--ng-bg); border-color: var(--ng); color: var(--ng); opacity: 1;
}
.choice .key {
  display: inline-block;
  min-width: 1.6em;
  margin-right: 6px;
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-mute);
}

/* ===== 判定・解説 ===== */
.verdict { margin-top: 24px; }
.verdict-line { font-size: 20px; font-weight: 700; margin: 0 0 12px; }
.verdict-line.ok { color: var(--ok); }
.verdict-line.ng { color: var(--ng); }
.detail {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 20px;
}
.detail-title { font-size: 18px; margin: 0 0 4px; }
.detail-meta { font-size: 13px; color: var(--ink-mute); margin: 0 0 10px; }
.detail-note { font-size: 14px; margin: 0 0 12px; }
.detail-link { font-size: 13px; color: var(--accent); text-decoration: none; }
.detail-link:hover { text-decoration: underline; }

/* ===== 結果 ===== */
.result-head { text-align: center; padding: 32px 0 8px; }
.result-rank { font-size: 13px; letter-spacing: .2em; color: var(--ink-mute); margin: 0 0 4px; }
.result-score { margin: 0; font-size: 56px; font-weight: 700; line-height: 1.1; letter-spacing: -.02em; }
.result-slash { color: var(--ink-mute); margin: 0 6px; font-weight: 400; }
#result-total { color: var(--ink-mute); font-size: 32px; }
.result-comment { margin: 12px 0 0; color: var(--ink-mute); font-size: 14px; }

.section-title { font-size: 12px; letter-spacing: .14em; color: var(--ink-mute); font-weight: 400; margin: 40px 0 12px; }
.review-list { list-style: none; margin: 0; padding: 0; }
.review-list li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 12px 0; border-bottom: 1px solid var(--line);
}
.mark { flex: none; width: 1.4em; font-weight: 700; }
.mark.ok { color: var(--ok); }
.mark.ng { color: var(--ng); }
.review-body { min-width: 0; }
.review-title { font-size: 15px; font-weight: 600; }
.review-sub { font-size: 13px; color: var(--ink-mute); }
.review-sub .picked { color: var(--ng); }

.result-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

@media (max-width: 420px) {
  .choices { grid-template-columns: 1fr 1fr; }
  .choice { font-size: 13px; padding: 10px 10px; }
  .choice .key { display: none; }
}