/* ============================================================
 * styles.css — 英文解釈カード（自己完結・ダーク基調の知的トーン）
 *   構文図解の SVOC 色分けが中心。スマホ縦持ち最適化。
 * ============================================================ */
:root {
  --bg: #0f1720;
  --bg2: #141f2b;
  --card: #1a2735;
  --card2: #213244;
  --ink: #e8eef4;
  --ink2: #9fb0c0;
  --line: #2a3a4c;
  --accent: #4fd1c5;       /* ティール */
  --accent2: #38b2ac;
  --good: #48bb78;
  --bad: #f56565;
  --warn: #ed8936;
  /* 構文ラベル色 */
  --r-s: #4fd1c5;  /* 主語 */
  --r-v: #f6ad55;  /* 動詞 */
  --r-o: #63b3ed;  /* 目的語 */
  --r-c: #b794f4;  /* 補語 */
  --r-m: #a0aec0;  /* 修飾 */
  --r-x: #718096;  /* その他 */
  --radius: 16px;
  --shadow: 0 8px 24px rgba(0,0,0,.35);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
.page {
  max-width: 560px;
  margin: 0 auto;
  padding: 16px 16px calc(84px + env(safe-area-inset-bottom));
}

/* ---------- ヘッダー ---------- */
.top { padding: 14px 2px 18px; }
.brand { font-size: 22px; font-weight: 800; letter-spacing: .02em; }
.brand-sub { font-size: 12.5px; color: var(--ink2); margin-top: 3px; }

/* ---------- カード ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 12px; }
.card-head h2 { font-size: 15.5px; margin: 0; font-weight: 700; }
.card-head h2 small { font-weight: 500; color: var(--ink2); font-size: 12px; margin-left: 4px; }
.card-note { font-size: 12px; color: var(--ink2); }

/* ---------- ヒーロー ---------- */
.hero-row { display: flex; gap: 10px; margin-bottom: 14px; }
.pill { flex: 1; text-align: center; padding: 12px; border-radius: 12px; font-size: 12.5px; color: var(--ink2); background: var(--card2); border: 1px solid var(--line); }
.pill b { font-size: 22px; color: var(--ink); display: block; }
.pill-review b { color: var(--accent); }
.pill-new b { color: var(--r-o); }
.mode-desc { font-size: 13px; color: var(--ink2); line-height: 1.7; margin: 4px 0 16px; }
.mode-desc b { color: var(--ink); }
.lv-legend { font-size: 12.5px; color: var(--ink2); line-height: 1.6; }
.lv-legend.center { text-align: center; }

/* ---------- ボタン ---------- */
.btn { border: none; border-radius: 12px; font-weight: 700; cursor: pointer; font-family: inherit; transition: transform .08s, opacity .15s; }
.btn:active { transform: scale(.97); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #06231f; }
.btn-secondary { background: var(--card2); color: var(--ink); border: 1px solid var(--line); }
.btn-lg { width: 100%; padding: 16px; font-size: 15.5px; }
.btn-sm { padding: 8px 14px; font-size: 12.5px; }

/* ---------- 出題 ---------- */
.study-progress { margin-bottom: 14px; }
.sp-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.study-count { font-size: 12.5px; color: var(--ink2); }
.study-count b { color: var(--ink); }
.back-btn { background: none; border: none; color: var(--ink2); font-size: 12.5px; display: inline-flex; align-items: center; gap: 4px; cursor: pointer; font-family: inherit; }
.bar { height: 8px; background: var(--card2); border-radius: 99px; overflow: hidden; }
.bar.slim { height: 6px; }
.bar-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 99px; transition: width .3s; }

.q-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); margin-bottom: 14px; }
.q-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.badge { font-size: 11px; padding: 3px 9px; border-radius: 99px; font-weight: 700; }
.badge-review { background: rgba(79,209,197,.16); color: var(--accent); }
.badge-new { background: rgba(99,179,237,.16); color: var(--r-o); }
.badge-lv { background: var(--card2); color: var(--ink2); border: 1px solid var(--line); }
.badge-theme { background: rgba(183,148,244,.14); color: var(--r-c); }
.badge-danger { background: rgba(245,101,101,.18); color: var(--bad); }
.badge-master { background: rgba(246,173,85,.18); color: var(--r-v); }

.en-line { display: flex; align-items: flex-start; gap: 8px; }
.en-text {
  font-family: "Georgia", "Times New Roman", serif;
  font-size: 20px; line-height: 1.6; margin: 0; flex: 1;
  letter-spacing: .01em;
}
.q-en { margin-bottom: 14px; }
.q-en .en-text { font-size: 21px; }
.spk { background: var(--card2); border: 1px solid var(--line); color: var(--accent); border-radius: 9px; padding: 6px; cursor: pointer; display: inline-flex; flex: none; }
.spk:active { transform: scale(.92); }

.q-prompt { font-size: 13.5px; color: var(--ink2); margin: 0 0 12px; font-weight: 600; }
.choices { display: flex; flex-direction: column; gap: 9px; }
.choice {
  text-align: left; padding: 14px 16px; border-radius: 12px;
  background: var(--card2); border: 1px solid var(--line); color: var(--ink);
  font-size: 14.5px; cursor: pointer; font-family: inherit; line-height: 1.5;
  transition: border-color .12s, background .12s;
}
.choice:active { background: #28394c; border-color: var(--accent); }
.picked-line { font-size: 13px; color: var(--ink2); margin: 12px 0; }
.picked-line b { color: var(--ink); }

/* ---------- 自信申告 ---------- */
.conf-block { margin-top: 6px; }
.conf-cap { font-size: 13.5px; font-weight: 700; margin: 0 0 10px; }
.conf-row { display: flex; gap: 9px; }
.conf-chip {
  flex: 1; padding: 14px 6px; border-radius: 12px; font-weight: 700; font-size: 13.5px;
  background: var(--card2); border: 1px solid var(--line); color: var(--ink); cursor: pointer; font-family: inherit;
}
.conf-chip:active { transform: scale(.96); border-color: var(--accent); }
.conf-note { font-size: 11.5px; color: var(--ink2); margin: 12px 0 0; line-height: 1.5; }

/* ---------- 結果バナー ---------- */
.result-banner { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: 14px; margin-bottom: 14px; }
.result-banner.is-correct { background: rgba(72,187,120,.14); border: 1px solid rgba(72,187,120,.4); }
.result-banner.is-wrong { background: rgba(245,101,101,.12); border: 1px solid rgba(245,101,101,.36); }
.rb-ic { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; flex: none; }
.is-correct .rb-ic { background: var(--good); color: #04210f; }
.is-wrong .rb-ic { background: var(--bad); color: #2a0808; }
.rb-body { flex: 1; }
.rb-word { font-size: 15px; font-weight: 800; margin: 0; }
.rb-detail { font-size: 12.5px; color: var(--ink2); margin: 2px 0 0; }
.rb-detail b { color: var(--ink); }
.rb-tag { flex: none; }

/* ---------- 精読リーダー ---------- */
.reader-head { display: flex; gap: 6px; margin-bottom: 12px; }
.reader .en-line { margin-bottom: 18px; }
.sec-cap { font-size: 12px; font-weight: 800; color: var(--accent); margin: 18px 0 10px; letter-spacing: .08em; text-transform: uppercase; }
.sec-cap:first-of-type { margin-top: 6px; }

/* 構文図解 */
.struct { display: flex; flex-direction: column; gap: 8px; }
.struct-row { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; background: var(--card2); border-radius: 10px; border: 1px solid var(--line); }
.role {
  flex: none; min-width: 30px; text-align: center; font-size: 10.5px; font-weight: 800;
  padding: 3px 7px; border-radius: 7px; line-height: 1.3; white-space: nowrap;
}
.role.r-s { background: rgba(79,209,197,.18); color: var(--r-s); }
.role.r-v { background: rgba(246,173,85,.18); color: var(--r-v); }
.role.r-o { background: rgba(99,179,237,.18); color: var(--r-o); }
.role.r-c { background: rgba(183,148,244,.18); color: var(--r-c); }
.role.r-m { background: rgba(160,174,192,.16); color: var(--r-m); }
.role.r-x { background: rgba(113,128,150,.16); color: var(--r-x); }
.struct-body { flex: 1; }
.struct-en { font-family: "Georgia", serif; font-size: 15px; display: block; line-height: 1.5; }
.struct-note { font-size: 12px; color: var(--ink2); display: block; margin-top: 4px; line-height: 1.55; }

.ja-text { font-size: 15px; line-height: 1.85; margin: 0; }
.gloss { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 7px; }
.gloss li { display: flex; gap: 10px; font-size: 13px; align-items: baseline; }
.gloss li b { color: var(--accent); font-family: "Georgia", serif; flex: none; }
.gloss li span { color: var(--ink2); }

.point { margin-top: 18px; padding: 14px; background: rgba(79,209,197,.07); border: 1px solid rgba(79,209,197,.25); border-radius: 12px; }
.point-tag { font-size: 10.5px; font-weight: 800; color: var(--accent); letter-spacing: .06em; }
.point p { font-size: 13px; line-height: 1.8; margin: 8px 0 0; color: var(--ink); }

.nr-stand { display: flex; align-items: flex-start; gap: 8px; font-size: 12.5px; color: var(--ink2); padding: 12px 4px; line-height: 1.6; }
.nr-stand b { color: var(--ink); }
.nr-stand svg { margin-top: 2px; flex: none; }

/* ---------- 完了 ---------- */
.done-card { text-align: center; padding: 32px 18px; }
.done-stamp { width: 56px; height: 56px; border-radius: 50%; background: var(--good); color: #04210f; display: grid; place-items: center; margin: 0 auto 14px; }
.done-card h2 { margin: 0 0 10px; font-size: 19px; }
.done-msg { font-size: 13px; color: var(--ink2); line-height: 1.8; margin: 0 0 18px; }
.done-actions { display: flex; gap: 10px; }
.done-actions .btn { flex: 1; padding: 13px; }

/* ---------- ライブラリ ---------- */
.lib-group .card-head h2 { font-size: 14.5px; }
.lock-tag { font-size: 11px; color: var(--r-v); display: inline-flex; align-items: center; gap: 4px; }
.lib-list { display: flex; flex-direction: column; gap: 8px; }
.lib-row {
  width: 100%; text-align: left; display: flex; align-items: center; gap: 10px;
  padding: 12px 14px; background: var(--card2); border: 1px solid var(--line); border-radius: 11px;
  color: var(--ink); cursor: pointer; font-family: inherit;
}
.lib-row:disabled { opacity: .5; cursor: default; }
.lib-row:not(:disabled):active { border-color: var(--accent); }
.lib-theme { flex: none; font-size: 10.5px; font-weight: 700; color: var(--r-c); background: rgba(183,148,244,.12); padding: 3px 8px; border-radius: 7px; }
.lib-en { flex: 1; font-family: "Georgia", serif; font-size: 13px; line-height: 1.45; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.lib-mast { color: var(--r-v); flex: none; }
.lib-lock { color: var(--ink2); flex: none; }

/* ---------- マイページ ---------- */
.stat-hero { text-align: center; }
.stat-big { margin-bottom: 14px; }
.stat-num { font-size: 40px; font-weight: 800; line-height: 1; }
.stat-num small { font-size: 18px; color: var(--ink2); font-weight: 600; }
.stat-lab { font-size: 12.5px; color: var(--ink2); margin-top: 6px; }
.stat-grid { display: flex; gap: 10px; margin-top: 16px; }
.sg-cell { flex: 1; background: var(--card2); border-radius: 11px; padding: 12px 6px; }
.sg-num { font-size: 22px; font-weight: 800; }
.sg-num.warn { color: var(--warn); }
.sg-lab { font-size: 11px; color: var(--ink2); margin-top: 3px; }

.lv-row { margin-bottom: 13px; }
.lv-row:last-child { margin-bottom: 0; }
.lv-head { display: flex; justify-content: space-between; font-size: 12.5px; margin-bottom: 6px; }
.lv-head small { color: var(--ink2); }

.setrow { padding: 6px 0; }
.range-input { width: 100%; accent-color: var(--accent); }
.set-note { font-size: 11.5px; color: var(--ink2); line-height: 1.6; margin: 8px 0 12px; }

.mastered-list { display: flex; flex-direction: column; gap: 10px; }
.mrow { display: flex; align-items: center; gap: 10px; }
.mrow-main { flex: 1; min-width: 0; }
.mrow-theme { font-size: 10.5px; color: var(--r-c); font-weight: 700; }
.mrow-en { display: block; font-family: "Georgia", serif; font-size: 12.5px; color: var(--ink2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- タブバー ---------- */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0;
  display: flex; background: rgba(15,23,32,.92); backdrop-filter: blur(12px);
  border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom);
}
.tab {
  flex: 1; background: none; border: none; color: var(--ink2); cursor: pointer; font-family: inherit;
  padding: 10px 0 9px; display: flex; flex-direction: column; align-items: center; gap: 3px; font-size: 10.5px; font-weight: 600;
}
.tab.on { color: var(--accent); }
.tab span { letter-spacing: .02em; }

/* ---------- シリーズアプリ ---------- */
.series-list { display: flex; flex-direction: column; margin: 2px -4px 0; }
.series-row { display: flex; align-items: center; gap: 8px; border-top: 1px solid var(--line); }
.series-row:first-child { border-top: none; }
.series-app { flex: 1; min-width: 0; display: flex; align-items: center; gap: 12px; padding: 10px 4px; text-decoration: none; color: inherit; }
.series-app:hover .series-name { color: var(--accent); }
.series-info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.series-name { font-size: 13.5px; font-weight: 700; color: var(--ink); line-height: 1.4; }
.series-desc { font-size: 11.5px; color: var(--ink2); line-height: 1.5; }
.series-new { display: inline-block; margin-left: 6px; padding: 1px 7px; border-radius: 999px; font-size: 9.5px; font-weight: 800; letter-spacing: .04em; color: #0f1720; background: var(--accent); vertical-align: 2px; }
.series-weblink { flex: none; font-size: 11.5px; font-weight: 700; color: var(--accent); text-decoration: none; padding: 6px 4px; }
.series-foot { font-size: 11.5px; color: var(--ink2); margin: 12px 0 0; text-align: right; }
.series-foot a { color: var(--accent); font-weight: 700; text-decoration: none; }