:root {
  --bg: #f7f4ec;
  --card: #ffffff;
  --ink: #1f2a26;
  --sub: #5d6a64;
  --main: #2f5d50;
  --main-ink: #ffffff;
  --soft: #e3ece7;
  --good: #2f7d4f;
  --mid: #b07a1c;
  --bad: #b5483b;
  --line: #d9d4c7;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 20px;
  line-height: 1.6;
  min-height: 100vh;
  padding-bottom: calc(190px + env(safe-area-inset-bottom));
}

.top {
  position: sticky; top: 0; z-index: 2;
  background: var(--bg);
  padding: calc(8px + env(safe-area-inset-top)) 16px 8px;
  display: flex; align-items: center; gap: 12px; min-height: 52px;
}
.back {
  border: 0; background: none; color: var(--main);
  font-size: 18px; font-weight: 700; padding: 6px 0;
}
.steps { display: flex; gap: 6px; flex: 1; justify-content: flex-end; }
.steps span {
  font-size: 14px; padding: 4px 10px; border-radius: 99px;
  background: var(--soft); color: var(--sub); white-space: nowrap;
}
.steps span.on { background: var(--main); color: var(--main-ink); font-weight: 700; }
.steps span.done { background: #cfe0d8; color: var(--main); }

main { padding: 4px 16px 16px; max-width: 560px; margin: 0 auto; }

h1 { font-size: 26px; margin: 8px 0 4px; }
h2 { font-size: 21px; margin: 24px 0 8px; }
.lead { color: var(--sub); margin: 0 0 16px; font-size: 18px; }

.card {
  background: var(--card); border-radius: 18px; padding: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,.06); margin-bottom: 14px;
}

/* ホーム */
.today { text-align: center; padding: 26px 20px; }
.today .big { font-size: 24px; font-weight: 700; margin: 4px 0; }
.today .note { color: var(--sub); font-size: 17px; margin: 0; }
.today.finished { background: #e7f2ec; }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.stat { text-align: center; padding: 16px 8px; }
.stat .num { font-size: 30px; font-weight: 800; color: var(--main); line-height: 1.2; }
.stat .label { font-size: 15px; color: var(--sub); }

.bar { height: 14px; background: var(--soft); border-radius: 99px; overflow: hidden; margin: 10px 0 6px; }
.bar i { display: block; height: 100%; background: var(--main); border-radius: 99px; }
.small { font-size: 16px; color: var(--sub); margin: 0; }

.cal-head { display: flex; justify-content: space-between; align-items: baseline; }
.cal { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; text-align: center; margin-top: 8px; }
.cal .dow { font-size: 13px; color: var(--sub); }
.cal .d {
  width: 36px; height: 36px; margin: 0 auto; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; font-size: 16px;
}
.cal .d.done { background: var(--main); color: #fff; font-weight: 700; }
.cal .d.today { outline: 2px solid var(--main); }
.cal .d.future { color: #b9b3a5; }

details.card summary { font-weight: 700; cursor: pointer; }
details.card ol { padding-left: 1.3em; margin: 10px 0 0; }
details.card li { margin-bottom: 6px; }

.seg { display: flex; background: var(--soft); border-radius: 12px; padding: 4px; gap: 4px; margin-top: 8px; }
.seg button {
  flex: 1; border: 0; background: none; padding: 10px; border-radius: 9px;
  font-size: 18px; color: var(--sub); font-family: inherit;
}
.seg button.on { background: #fff; color: var(--main); font-weight: 700; box-shadow: 0 1px 2px rgba(0,0,0,.1); }

/* 学習画面 */
.counter { color: var(--sub); font-size: 16px; margin: 4px 0 10px; }
.q { text-align: center; padding: 30px 18px; }
.q .scene { font-size: 15px; color: var(--sub); margin-bottom: 8px; }
.q .ja { font-size: 25px; font-weight: 700; line-height: 1.5; }
.q .en {
  font-size: 30px; font-weight: 700; color: var(--main); line-height: 1.35;
  margin-top: 18px; font-family: -apple-system, "Helvetica Neue", sans-serif;
}
.q .tip { margin-top: 14px; font-size: 17px; color: var(--sub); background: var(--bg); border-radius: 10px; padding: 8px 12px; }
.q .hint { margin-top: 18px; font-size: 18px; color: var(--sub); }
.listen-row { display: flex; gap: 10px; justify-content: center; margin-top: 18px; }
.listen {
  border: 2px solid var(--main); background: #fff; color: var(--main);
  font-size: 18px; font-weight: 700; border-radius: 99px; padding: 10px 18px; font-family: inherit;
}
.reps { display: flex; justify-content: center; gap: 10px; margin-top: 16px; }
.reps i { width: 18px; height: 18px; border-radius: 50%; background: var(--soft); }
.reps i.on { background: var(--main); }

.center { text-align: center; }
.done-mark { font-size: 64px; line-height: 1; margin: 20px 0 6px; }

/* 下のボタン（最大3つ） */
.actions {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 3;
  background: linear-gradient(to bottom, rgba(247,244,236,0), var(--bg) 22%);
  padding: 22px 16px calc(16px + env(safe-area-inset-bottom));
  display: flex; flex-direction: column; gap: 10px; max-width: 560px; margin: 0 auto;
}
.actions:empty { display: none; }
.actions .row { display: flex; gap: 10px; }
.btn {
  flex: 1; border: 0; border-radius: 16px; min-height: 62px;
  font-size: 21px; font-weight: 700; font-family: inherit;
  background: var(--main); color: var(--main-ink);
}
.btn:active { transform: scale(.98); }
.btn.ghost { background: #fff; color: var(--main); border: 2px solid var(--main); }
.btn.good { background: var(--good); }
.btn.mid { background: var(--mid); }
.btn.bad { background: var(--bad); }
.btn small { display: block; font-size: 13px; font-weight: 400; opacity: .9; line-height: 1.2; }

/* 3か月の目標 */
h3 { font-size: 17px; margin: 16px 0 6px; }
.term-row { display: flex; justify-content: space-between; align-items: baseline; margin-top: 10px; }
.term-row b { font-size: 20px; color: var(--main); }
.bar.thin { height: 8px; margin: 4px 0 0; }
.cando { list-style: none; padding: 0; margin: 0; }
.cando li { display: flex; flex-wrap: wrap; justify-content: space-between; font-size: 17px; padding: 6px 0; }
.cando li .bar { flex-basis: 100%; }
.cando .pct { color: var(--sub); font-size: 15px; }
.note-box { margin: 14px 0 0; background: var(--bg); border-radius: 10px; padding: 10px 12px; font-size: 17px; }
.link {
  margin-top: 12px; border: 0; background: none; padding: 4px 0;
  color: var(--main); font-size: 17px; text-decoration: underline; font-family: inherit;
}
.seg button small { display: block; font-size: 12px; font-weight: 400; color: var(--sub); line-height: 1.3; }
.picks { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.pick {
  text-align: left; border: 2px solid var(--line); background: #fff; color: var(--ink);
  border-radius: 12px; padding: 12px 14px; font-size: 18px; font-family: inherit;
}
.pick.on { border-color: var(--main); background: #e7f2ec; font-weight: 700; }
.pick.on::after { content: " ✓"; color: var(--main); }
textarea {
  width: 100%; margin-top: 10px; border: 2px solid var(--line); border-radius: 12px;
  padding: 10px 12px; font-size: 18px; font-family: inherit; resize: vertical;
}
.flow { padding-left: 1.3em; margin: 0; }
.flow li { margin-bottom: 8px; }
.result + .result { border-top: 1px solid var(--line); margin-top: 14px; padding-top: 14px; }
details .result { margin-top: 12px; }

/* 1年の道のり */
.milestone { background: #e7f2ec; }
.milestone .big { font-size: 21px; font-weight: 700; margin: 4px 0; line-height: 1.45; }
.milestone .small { margin: 0; }
.milestone-line { margin: 8px 0 0; font-weight: 700; color: var(--main); font-size: 17px; }
.year .big { font-size: 20px; font-weight: 700; margin: 6px 0 0; }
.road { list-style: none; padding: 0; margin: 14px 0 0; }
.road li { display: flex; gap: 12px; align-items: flex-start; padding: 8px 0; color: var(--sub); }
.road li + li { border-top: 1px dashed var(--line); }
.road .mark {
  flex: none; width: 30px; height: 30px; border-radius: 50%; background: var(--soft);
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px;
}
.road b { display: block; font-size: 17px; color: var(--ink); }
.road li > div span { font-size: 15px; }
.road li.now .mark { background: var(--main); color: #fff; }
.road li.now b { color: var(--main); }
.road li.done .mark { background: #cfe0d8; color: var(--main); }
.rhythm { list-style: none; padding: 0; margin: 8px 0; }
.rhythm li { margin-bottom: 6px; font-size: 18px; }
.cal .d { position: relative; }
.conv-dot { position: absolute; right: -6px; top: -6px; font-size: 12px; }

/* 会話練習 */
.rp-item {
  display: flex; justify-content: space-between; align-items: center; gap: 10px; width: 100%;
  background: var(--card); border: 0; border-radius: 14px; padding: 14px 16px; margin-bottom: 10px;
  text-align: left; font-size: 18px; font-weight: 700; color: var(--ink); font-family: inherit;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.rp-item small { display: block; font-size: 14px; font-weight: 400; color: var(--sub); }
.rp-item.locked { opacity: .55; font-weight: 400; }
.rp-item .stars { color: var(--mid); white-space: nowrap; font-size: 18px; }
.counter .mode { background: var(--main); color: #fff; border-radius: 99px; padding: 2px 10px; font-size: 14px; }
.chat { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.bubble {
  max-width: 85%; padding: 10px 14px; border-radius: 18px; font-size: 19px; line-height: 1.4;
  font-family: -apple-system, "Helvetica Neue", "Hiragino Sans", sans-serif; position: relative;
}
.bubble b { display: block; font-size: 13px; color: var(--sub); }
.bubble small { display: block; font-size: 14px; color: var(--sub); margin-top: 2px; }
.bubble.them { align-self: flex-start; background: var(--card); border-bottom-left-radius: 6px; padding-right: 44px; }
.bubble.me { align-self: flex-end; background: var(--main); color: #fff; border-bottom-right-radius: 6px; }
.mini { position: absolute; right: 8px; top: 8px; border: 0; background: var(--soft); border-radius: 50%; width: 30px; height: 30px; font-size: 14px; }
.turn { border: 2px solid var(--main); }
.heard { margin: 14px 0 0; font-size: 18px; }
.verdict { margin: 6px 0 0; font-weight: 700; font-size: 19px; }
.verdict.ok, .verdict.free { color: var(--good); }
.verdict.close { color: var(--mid); }
.verdict.miss { color: var(--bad); }