/* ============================================================
   Sokutan Training
   青のグラデーションの紙面に、単語カードを重ねたようなデザイン
   ============================================================ */
:root {
  --ink: #0c2760;
  --ink-soft: #3b4f80;
  --muted: #7386ad;
  --cobalt: #2b5ce6;
  --cornflower: #6f9bff;
  --sky: #b9dcff;
  --frost: #f2f7ff;
  --lilac: #e6e8ff;
  --line: #d3e2fb;
  --paper: #ffffff;
  --ok: #12a37f;
  --ok-bg: #dcf6ec;
  --ng: #e2507a;
  --ng-bg: #ffe4ec;

  --font-jp: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  --font-en: "Outfit", var(--font-jp);
  --font-display: "DM Serif Display", "Times New Roman", serif;

  --r-lg: 28px;
  --r-md: 18px;
  --r-sm: 12px;
  --shadow: 0 14px 36px rgba(43, 92, 230, 0.13);
  --shadow-s: 0 4px 14px rgba(43, 92, 230, 0.12);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-jp);
  color: var(--ink);
  line-height: 1.7;
  background: linear-gradient(165deg, #e9f4ff 0%, #d9e8ff 46%, #e9e6ff 100%) fixed;
  padding-bottom: env(safe-area-inset-bottom);
}
.bg-wash {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(520px 380px at 90% -5%, rgba(111, 155, 255, 0.35), transparent 70%),
    radial-gradient(460px 420px at -5% 105%, rgba(185, 220, 255, 0.7), transparent 70%);
}
.hidden { display: none !important; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--cornflower); outline-offset: 2px; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4em;
  border: 2px solid transparent; border-radius: 999px;
  padding: 0.62em 1.5em; font-weight: 700; line-height: 1.3;
  transition: transform 0.12s, box-shadow 0.15s, background 0.15s;
}
.btn:active:not(:disabled) { transform: translateY(1px) scale(0.99); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  color: #fff; background: linear-gradient(135deg, var(--cobalt), var(--cornflower));
  box-shadow: 0 8px 20px rgba(43, 92, 230, 0.32);
}
.btn-primary:hover:not(:disabled) { box-shadow: 0 10px 26px rgba(43, 92, 230, 0.42); }
.btn-ghost { background: rgba(255, 255, 255, 0.85); border-color: var(--line); color: var(--cobalt); }
.btn-ghost:hover:not(:disabled) { border-color: var(--cornflower); background: #fff; }
.btn-quiet { background: transparent; color: var(--ink-soft); }
.btn-quiet:hover:not(:disabled) { background: rgba(255, 255, 255, 0.7); }
.btn-sm { padding: 0.4em 1em; font-size: 0.88rem; }
.btn-lg { padding: 0.8em 2em; font-size: 1.05rem; }
.btn-xl { padding: 0.95em 3.4em; font-size: 1.15rem; }
.btn-block { display: flex; width: 100%; }

.spinner {
  display: inline-block; width: 1.1em; height: 1.1em; vertical-align: -0.2em;
  border: 3px solid var(--sky); border-top-color: var(--cobalt); border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading { padding: 4rem 1rem; text-align: center; color: var(--muted); }

/* ---------- アプリバー ---------- */
.appbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
  padding: calc(0.6rem + env(safe-area-inset-top)) clamp(0.9rem, 4vw, 2rem) 0.6rem;
  background: rgba(238, 246, 255, 0.86); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(43, 92, 230, 0.1);
}
.brand {
  border: 0; background: none; padding: 0; color: var(--ink);
  font-family: var(--font-display); font-size: 1.2rem; white-space: nowrap;
}
.brand em { color: var(--cobalt); }
.appbar-user { display: flex; align-items: center; gap: 0.5rem; min-width: 0; }
.avatar { width: 30px; height: 30px; border-radius: 50%; border: 2px solid #fff; box-shadow: var(--shadow-s); }
.uname { font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 12em; }

/* ---------- 画面共通 ---------- */
.screen { width: min(1040px, 100%); margin: 0 auto; padding: clamp(1.4rem, 4vw, 2.6rem) clamp(1rem, 4vw, 2rem) 4rem; }
.screen.quiz { width: min(880px, 100%); padding-top: calc(1rem + env(safe-area-inset-top)); }
.notice { padding: 1rem 1.2rem; border-radius: var(--r-md); background: rgba(255, 255, 255, 0.8); border: 1px dashed var(--cornflower); color: var(--ink-soft); }
.notice.error { border-color: var(--ng); background: var(--ng-bg); color: #8c1f42; }

/* ---------- トップ ---------- */
.screen.top {
  min-height: 100vh; display: grid; align-items: center; gap: 2rem;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  padding-top: calc(2rem + env(safe-area-inset-top));
}
.hero-title { margin: 0 0 1.2rem; font-family: var(--font-display); font-weight: 400; line-height: 1.02; letter-spacing: -0.01em; }
.hero-title .t1 { display: block; font-size: clamp(2.6rem, 8vw, 4.9rem); color: var(--ink); overflow-wrap: anywhere; }
.hero-title .t1 i { font-style: italic; color: var(--cornflower); padding: 0 0.04em; }
.hero-title .t2 { display: block; font-size: clamp(2.6rem, 8vw, 4.9rem); font-style: italic; color: var(--cobalt); }
.hero-lead { max-width: 28em; margin: 0 0 2rem; color: var(--ink-soft); }
.hero-note { margin: 0.9rem 0 0; font-size: 0.86rem; color: var(--muted); }

.hero-cards { position: relative; height: 340px; }
.demo-card {
  position: absolute; display: flex; flex-direction: column; justify-content: center; gap: 0.5rem;
  padding: 1.4rem 1.6rem; background: #fff; border-radius: var(--r-lg);
  box-shadow: var(--shadow); border: 1px solid var(--line);
}
.dc-main { font-family: var(--font-en); font-weight: 600; font-size: 1.85rem; line-height: 1.15; color: var(--ink); overflow-wrap: anywhere; }
.dc-main.ja { font-family: var(--font-jp); font-weight: 700; }
.dc-sub { font-family: var(--font-en); font-size: 0.92rem; color: var(--muted); }
.dc-sub.ja { font-family: var(--font-jp); }
.d1 { width: 250px; height: 168px; left: 4%; top: 4%; transform: rotate(-7deg); }
.d2 { width: 250px; height: 168px; right: 2%; top: 30%; transform: rotate(5deg); background: linear-gradient(140deg, var(--cobalt), var(--cornflower)); border-color: transparent; }
.d2 .dc-main, .d2 .dc-sub { color: #fff; }
.d3 { width: 210px; height: 96px; left: 20%; bottom: 0; transform: rotate(-2deg); background: var(--lilac); }
.d3 .dc-main { font-size: 1.5rem; letter-spacing: 0.06em; color: var(--cobalt); }

/* ---------- マイページ1 ---------- */
.greet { margin: 0.4rem 0 0.2rem; font-size: clamp(1.5rem, 4.6vw, 2.2rem); }
.greet-sub { margin: 0 0 2rem; color: var(--ink-soft); font-size: 1.05rem; }
.book-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }
.book-card {
  position: relative; display: flex; flex-direction: column; justify-content: space-between; gap: 1.6rem;
  min-height: 150px; text-align: left; padding: 1.3rem 1.4rem 1.2rem;
  border: 2px solid rgba(255, 255, 255, 0.9); border-radius: var(--r-lg); color: var(--ink); overflow: hidden;
  background: linear-gradient(140deg, var(--c1), var(--c2)); box-shadow: var(--shadow-s);
  transition: transform 0.15s, box-shadow 0.15s;
}
.book-card::after {
  content: ""; position: absolute; right: -34px; top: -34px; width: 130px; height: 130px;
  border-radius: 50%; background: rgba(255, 255, 255, 0.32);
}
.book-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.book-junior { --c1: #b8deff; --c2: #86c3ff; --accent: var(--ink); }
.book-nyumon { --c1: #a9cbff; --c2: #7aa7ff; --accent: var(--ink); }
.book-hisshu { --c1: #9dbcff; --c2: #7096f6; --accent: var(--ink); }
.book-jokyu  { --c1: #a4aff8; --c2: #7a89ec; --accent: var(--ink); }
.book-jukugo { --c1: #c3bafb; --c2: #9f94f1; --accent: var(--ink); }
/* 白い文字に黒い縁取り（stroke を文字の後ろに描画するので文字は細くならない） */
.book-tag, .book-name {
  position: relative; z-index: 1; color: #fff;
  -webkit-text-stroke: 5px #000; paint-order: stroke fill;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}
.book-tag { font-family: var(--font-display); font-size: 2.1rem; line-height: 1; }
.book-name { font-size: 1rem; font-weight: 700; -webkit-text-stroke-width: 4px; }
.admin-btn { margin-top: 2rem; }

/* ---------- マイページ2 ---------- */
.range-title { margin: 0 0 1.2rem; font-size: clamp(1.25rem, 3.6vw, 1.7rem); }
.seg { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.8rem; }
.seg-btn {
  border: 2px solid var(--line); background: rgba(255, 255, 255, 0.85); color: var(--ink-soft);
  border-radius: 999px; padding: 0.5em 1.15em; font-weight: 700; font-size: 0.95rem;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.seg-btn:hover { border-color: var(--cornflower); }
.seg-btn.active { background: var(--cobalt); border-color: var(--cobalt); color: #fff; box-shadow: 0 6px 16px rgba(43, 92, 230, 0.3); }
.seg-filter .seg-btn { font-size: 0.9rem; padding: 0.42em 1em; }
.seg-filter .seg-btn.active { background: var(--ink); border-color: var(--ink); box-shadow: none; }
.random-block { margin: 1.4rem 0 0.4rem; padding: 1rem; border-radius: var(--r-lg); background: var(--lilac); }
.random-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.7rem; }
.stage { margin-top: 2rem; }
.stage-name { margin: 0 0 0.8rem; font-family: var(--font-display); font-weight: 400; font-size: 1.5rem; color: var(--cobalt); font-style: italic; }
.range-grid { display: grid; gap: 0.8rem; grid-template-columns: repeat(auto-fill, minmax(148px, 1fr)); }
.range-item { display: flex; flex-direction: column; gap: 0.3rem; }
.range-btn {
  display: flex; flex-direction: column; align-items: flex-start; gap: 0.35rem; width: 100%;
  padding: 0.85rem 0.95rem; text-align: left; background: #fff;
  border: 2px solid var(--line); border-radius: var(--r-md); box-shadow: var(--shadow-s);
  transition: transform 0.12s, border-color 0.15s;
}
.range-btn:hover:not(:disabled) { transform: translateY(-2px); border-color: var(--cornflower); }
.range-btn:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }
.range-name { font-family: var(--font-en); font-weight: 600; font-size: 1.05rem; }
.range-meta { font-size: 0.8rem; color: var(--muted); }
.best { padding-left: 0.4rem; font-size: 0.82rem; color: var(--ink-soft); font-family: var(--font-en); }
.random-btn { align-items: center; text-align: center; }
.status {
  display: inline-block; padding: 0.05em 0.7em; border-radius: 999px;
  font-family: var(--font-en); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.01em;
}
.st-ns { background: #eaeff8; color: #6e7f9f; }
.st-ip { background: #d6eaff; color: #1a62c9; }
.st-cp { background: var(--cobalt); color: #fff; }
.st-ms { background: linear-gradient(120deg, #6c7bff, #b07cff); color: #fff; }
.range-foot { margin-top: 2.8rem; text-align: center; }

/* ---------- 出題（共通） ---------- */
.quiz-top { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1rem; }
.quiz-title { font-size: 0.85rem; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.progress { display: flex; align-items: center; gap: 0.8rem; margin-bottom: 1.2rem; }
.progress-label { font-family: var(--font-en); font-weight: 600; color: var(--ink-soft); min-width: 4.5em; }
.bar { flex: 1; height: 8px; border-radius: 99px; background: rgba(255, 255, 255, 0.8); overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--cobalt), var(--sky)); transition: width 0.3s; }

.q-card {
  text-align: center; padding: clamp(1.6rem, 6vw, 3rem) 1.2rem; margin-bottom: 1.2rem;
  background: #fff; border-radius: var(--r-lg); box-shadow: var(--shadow); border: 1px solid var(--line);
}
.q-label { margin-bottom: 0.6rem; font-size: 0.9rem; color: var(--muted); }
.q-main { font-weight: 700; line-height: 1.3; overflow-wrap: anywhere; }
.q-main.en { font-family: var(--font-en); font-weight: 600; font-size: clamp(2.2rem, 8vw, 3.6rem); color: var(--cobalt); }
.q-main.ja { font-size: clamp(1.6rem, 6vw, 2.5rem); }

.options { display: grid; gap: 0.8rem; grid-template-columns: 1fr 1fr; }
.option {
  display: flex; align-items: center; gap: 0.8rem; text-align: left; min-height: 68px;
  padding: 0.8rem 1rem; background: #fff; border: 2px solid var(--line); border-radius: var(--r-md);
  box-shadow: var(--shadow-s); font-size: 1.05rem; font-weight: 500;
  transition: transform 0.12s, border-color 0.15s, background 0.15s;
}
.option:hover:not(:disabled) { border-color: var(--cornflower); transform: translateY(-2px); }
.option:disabled { cursor: default; }
.opt-no {
  flex: none; width: 1.9rem; height: 1.9rem; display: grid; place-items: center;
  border-radius: 50%; background: var(--frost); color: var(--cobalt); font-family: var(--font-en); font-weight: 700; font-size: 0.9rem;
}
.opt-text { overflow-wrap: anywhere; }
.option.correct { border-color: var(--ok); background: var(--ok-bg); }
.option.correct .opt-no { background: var(--ok); color: #fff; }
.option.wrong { border-color: var(--ng); background: var(--ng-bg); }
.option.wrong .opt-no { background: var(--ng); color: #fff; }
.option.dim { opacity: 0.5; }

.fb-box { margin-top: 1.1rem; min-height: 3rem; }
.fb-msg {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 1rem;
  padding: 0.8rem 1.1rem; border-radius: var(--r-md); font-size: 1.05rem;
}
.fb-msg.ok { background: var(--ok-bg); color: #0b6e55; }
.fb-msg.ng { background: var(--ng-bg); color: #9b1d44; }
.fb-answer b { font-size: 1.1em; }
.fb-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 0.8rem; margin-top: 0.9rem; }
.hint-key { font-size: 0.8rem; color: var(--muted); }

/* ---------- 短文 ---------- */
.q-card.sentence { text-align: left; }
.q-ja-sentence { font-size: clamp(1.15rem, 3.8vw, 1.5rem); font-weight: 500; margin-bottom: 0.9rem; }
.hint { color: var(--cobalt); font-weight: 700; }
.q-en-sentence { font-family: var(--font-en); font-size: clamp(1.25rem, 4.2vw, 1.75rem); line-height: 1.6; font-weight: 500; overflow-wrap: anywhere; }
.mask { color: var(--cobalt); letter-spacing: 0.04em; white-space: normal; }
.answer-row { display: flex; flex-wrap: wrap; gap: 0.7rem; }
.answer-input {
  flex: 1 1 220px; min-width: 0; padding: 0.85rem 1.1rem; font-family: var(--font-en); font-size: 1.3rem;
  background: #fff; border: 2px solid var(--line); border-radius: var(--r-md); outline: none;
}
.answer-input:focus { border-color: var(--cobalt); box-shadow: 0 0 0 4px rgba(43, 92, 230, 0.15); }
.answer-input.ok { border-color: var(--ok); background: var(--ok-bg); }
.answer-input.ng { border-color: var(--ng); background: var(--ng-bg); }
.shake { animation: shake 0.3s; }
@keyframes shake { 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }

/* ---------- 長文 ---------- */
.screen.quiz:has(.long-wrap) { width: min(1120px, 100%); }
.long-wrap { display: grid; gap: 1.2rem; }
.long-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.long-col { padding: 1.2rem 1.3rem; background: #fff; border-radius: var(--r-lg); border: 1px solid var(--line); box-shadow: var(--shadow-s); }
.long-col p { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.long-head { margin-bottom: 0.6rem; font-size: 0.82rem; font-weight: 700; color: var(--muted); }
.long-en p { font-family: var(--font-en); font-size: 1.08rem; line-height: 2.2; }
.long-ja p { line-height: 2; }
.blank { position: relative; display: inline-grid; vertical-align: baseline; margin: 0 0.15em; }
.blank-no { position: absolute; left: 0.1em; top: -1.05em; font-size: 0.62rem; color: var(--cornflower); font-weight: 700; line-height: 1; }
.blank-mask, .blank-input { grid-area: 1 / 1; }
.blank-mask { padding: 0 0.7em; font-size: 0.8em; letter-spacing: 0.06em; color: var(--cornflower); text-align: center; white-space: nowrap; }
.blank.filled .blank-mask { opacity: 0; }
.blank-input {
  width: 100%; min-width: 0; padding: 0 0.3em; text-align: center; font-family: var(--font-en); font-size: 1em;
  color: var(--ink); background: var(--frost); border: 0; border-bottom: 2px solid var(--cornflower); border-radius: 6px 6px 0 0; outline: none;
}
.blank-input:focus { background: #e3eeff; border-bottom-color: var(--cobalt); }
.long-submit {
  position: sticky; bottom: 0; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  margin-top: 1.4rem; padding: 0.8rem 1rem calc(0.8rem + env(safe-area-inset-bottom));
  background: rgba(238, 246, 255, 0.92); backdrop-filter: blur(10px); border-top: 1px solid var(--line); border-radius: var(--r-md) var(--r-md) 0 0;
}
.long-count { color: var(--ink-soft); }

/* ---------- トレーニング ---------- */
.train-toggle { justify-content: center; margin-bottom: 1.2rem; }
.train-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; align-items: stretch; }
.en-wrap { display: flex; align-items: center; gap: 0.7rem; min-width: 0; }
.en-wrap .flip { flex: 1; min-width: 0; }
.flip { perspective: 1200px; min-height: 280px; cursor: pointer; position: relative; border-radius: var(--r-lg); }
.flip-inner { position: absolute; inset: 0; transition: transform 0.5s cubic-bezier(0.3, 0.7, 0.2, 1); transform-style: preserve-3d; }
.flip.is-hidden .flip-inner { transform: rotateY(180deg); }
.face {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 0.8rem;
  padding: 1.4rem; text-align: center; overflow: auto; border-radius: var(--r-lg);
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
}
.face.front { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); }
.face.cover { transform: rotateY(180deg); background: linear-gradient(140deg, var(--cobalt), var(--cornflower)); color: #fff; box-shadow: var(--shadow); }
.cover-mark { font-family: var(--font-display); font-size: 3rem; line-height: 1; opacity: 0.9; }
.cover-text { font-size: 0.9rem; opacity: 0.9; }
.card-main { font-weight: 700; line-height: 1.3; overflow-wrap: anywhere; }
.card-main.en { font-family: var(--font-en); font-weight: 600; font-size: clamp(1.9rem, 5vw, 2.7rem); color: var(--cobalt); }
.card-main.ja { font-size: clamp(1.5rem, 4.2vw, 2.1rem); }
.card-sub { font-size: 0.92rem; color: var(--ink-soft); line-height: 1.6; }
.card-sub.en { font-family: var(--font-en); }
.audio-btn {
  flex: none; width: 56px; height: 56px; display: grid; place-items: center; border-radius: 50%;
  border: 2px solid var(--line); background: #fff; color: var(--cobalt); box-shadow: var(--shadow-s);
}
.audio-btn:hover { border-color: var(--cornflower); background: var(--frost); }
.train-counter { margin: 1.2rem 0; text-align: center; font-family: var(--font-en); font-weight: 600; color: var(--ink-soft); }
.train-nav { display: flex; justify-content: center; gap: 1rem; }

/* ---------- 結果 ---------- */
.screen.result { width: min(720px, 100%); text-align: center; }
.result-meta { margin: 0 0 1.4rem; color: var(--muted); font-size: 0.92rem; }
.score-block { display: flex; align-items: center; justify-content: center; gap: 2rem; flex-wrap: wrap; margin-bottom: 1.8rem; }
.ring {
  --p: 0; width: 190px; height: 190px; border-radius: 50%; display: grid; place-items: center;
  background: conic-gradient(var(--cobalt) calc(var(--p) * 1%), #dfe9fb 0); box-shadow: var(--shadow);
}
.ring-in { width: 152px; height: 152px; border-radius: 50%; background: #fff; display: grid; place-content: center; }
.ring-in small { color: var(--muted); font-size: 0.8rem; line-height: 1; }
.ring-in strong { font-family: var(--font-display); font-weight: 400; font-size: 3.4rem; line-height: 1.1; color: var(--cobalt); }
.score-line span { display: block; color: var(--muted); font-size: 0.85rem; }
.score-line strong { font-family: var(--font-en); font-size: 2.3rem; font-weight: 600; }
.save-status { margin-top: 0.4rem; font-size: 0.82rem; color: var(--muted); }
.result-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.8rem; margin-bottom: 1rem; }
.wrong-list { margin-top: 1.2rem; display: grid; gap: 0.8rem; text-align: left; }
.wrong-item { display: flex; gap: 0.9rem; padding: 1rem 1.1rem; background: #fff; border-radius: var(--r-md); border: 1px solid var(--line); box-shadow: var(--shadow-s); }
.w-no { flex: none; width: 1.9rem; height: 1.9rem; display: grid; place-items: center; border-radius: 50%; background: var(--ng-bg); color: var(--ng); font-family: var(--font-en); font-weight: 700; font-size: 0.85rem; }
.w-body { min-width: 0; flex: 1; }
.w-q { font-weight: 700; overflow-wrap: anywhere; }
.w-q-sub { margin-top: 0.1rem; font-family: var(--font-en); color: var(--ink-soft); font-size: 0.95rem; overflow-wrap: anywhere; }
.w-row { display: flex; gap: 0.8rem; margin-top: 0.35rem; font-size: 0.95rem; }
.w-row span { flex: none; width: 6.2em; color: var(--muted); font-size: 0.85rem; padding-top: 0.1em; }
.w-row b { overflow-wrap: anywhere; }
.bad { color: var(--ng); }
.good { color: var(--ok); }
.all-correct { margin: 0; padding: 1.2rem; text-align: center; background: var(--ok-bg); color: #0b6e55; border-radius: var(--r-md); font-weight: 700; }

/* ---------- 管理コンソール ---------- */
.screen.admin { width: min(1180px, 100%); }
.admin-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.admin-head h2 { margin: 0; font-size: 1.5rem; }
.panel { background: rgba(255, 255, 255, 0.85); border: 1px solid var(--line); border-radius: var(--r-md); padding: 1rem 1.2rem; box-shadow: var(--shadow-s); }
.admin-controls { display: flex; flex-wrap: wrap; gap: 1rem 1.6rem; align-items: flex-end; }
.ctl label { display: block; margin-bottom: 0.2rem; font-size: 0.8rem; color: var(--muted); font-weight: 700; }
.date-pair { display: flex; align-items: center; gap: 0.4rem; }
.inp { padding: 0.5em 0.8em; background: #fff; border: 2px solid var(--line); border-radius: var(--r-sm); max-width: 100%; }
.inp:focus { border-color: var(--cobalt); outline: none; }
.ctl.quick { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-left: auto; }
.admin-status { margin: 1rem 0; color: var(--muted); }
.tab-block { display: flex; align-items: center; gap: 0.8rem; margin-top: 1rem; }
.tab-cap { flex: none; width: 4em; font-size: 0.8rem; font-weight: 700; color: var(--muted); }
.tabs { display: flex; gap: 0.35rem; overflow-x: auto; padding-bottom: 4px; }
.tab {
  flex: none; display: inline-flex; align-items: center; gap: 0.4em; padding: 0.45em 1em;
  border: 0; border-radius: 999px; background: rgba(255, 255, 255, 0.7); color: var(--ink-soft); font-weight: 700; font-size: 0.92rem;
}
.tab:hover { background: #fff; }
.tab.active { background: var(--ink); color: #fff; }
.tab-count { font-family: var(--font-en); font-size: 0.75rem; padding: 0 0.5em; border-radius: 99px; background: rgba(43, 92, 230, 0.14); }
.tab.active .tab-count { background: rgba(255, 255, 255, 0.22); }
.sub-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; margin: 1rem 0 0.6rem; }
.seg-small { margin: 0 0 0 auto; }
.seg-small .seg-btn { padding: 0.35em 0.9em; font-size: 0.85rem; }
.admin-summary { margin: 0.6rem 0 1rem; font-weight: 700; }
.user-list { display: grid; gap: 0.8rem; }
.user-block { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); box-shadow: var(--shadow-s); overflow: hidden; }
.user-block > summary { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.3rem 0.9rem; padding: 0.8rem 1.1rem; cursor: pointer; list-style: none; }
.user-block > summary::-webkit-details-marker { display: none; }
.user-block > summary::before { content: "▸"; color: var(--cornflower); transition: transform 0.15s; }
.user-block[open] > summary::before { transform: rotate(90deg); }
.u-name { font-weight: 700; }
.u-mail { color: var(--muted); font-size: 0.85rem; overflow-wrap: anywhere; }
.u-meta { margin-left: auto; color: var(--ink-soft); font-size: 0.85rem; }
.table-wrap { overflow-x: auto; }
.user-block .table-wrap { padding: 0 0.6rem 0.8rem; }
.tbl { width: 100%; border-collapse: collapse; font-size: 0.9rem; background: #fff; }
.tbl th, .tbl td { padding: 0.55rem 0.8rem; text-align: left; border-bottom: 1px solid #edf3fd; vertical-align: middle; }
.tbl thead th { position: sticky; top: 0; background: var(--frost); font-size: 0.8rem; color: var(--muted); white-space: nowrap; }
.tbl tbody th { font-family: var(--font-en); font-weight: 600; white-space: nowrap; }
.score-cell strong { font-family: var(--font-en); margin-right: 0.4em; }
.score-cell small { display: inline-block; margin-right: 0.4em; color: var(--muted); font-size: 0.75rem; }
.score-cell.perfect strong { color: var(--ok); }
.score-cell .muted { color: #9aabca; }
.empty { color: #b3c1dc; }
.nowrap { white-space: nowrap; }
.tbl-note { margin: 0.5rem 0.4rem 0; font-size: 0.78rem; color: var(--muted); }
.more { padding: 1rem; text-align: center; }

/* ---------- トースト ---------- */
.toast {
  position: fixed; left: 50%; bottom: calc(1.4rem + env(safe-area-inset-bottom)); z-index: 50;
  transform: translate(-50%, 20px); max-width: min(92vw, 420px); padding: 0.75rem 1.2rem;
  background: var(--ink); color: #fff; border-radius: 999px; font-size: 0.92rem; box-shadow: var(--shadow);
  opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.2s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============================================================
   スマートフォン
   ============================================================ */
@media (max-width: 760px) {
  .screen.top { grid-template-columns: 1fr; min-height: auto; padding-top: calc(2.4rem + env(safe-area-inset-top)); }
  .hero-cards { height: 250px; }
  .d1 { width: 190px; height: 130px; left: 2%; top: 4%; padding: 1rem; }
  .d2 { width: 190px; height: 130px; right: 0; top: 26%; padding: 1rem; }
  .d3 { width: 170px; height: 76px; left: 12%; }
  .dc-main { font-size: 1.4rem; }
  .dc-sub { font-size: 0.75rem; }
  .btn-xl { width: 100%; padding: 0.9em 1em; }

  .uname { display: none; }
  .options { grid-template-columns: 1fr; }
  .option { min-height: 58px; }
  .train-cards { grid-template-columns: 1fr; }
  .flip { min-height: 210px; }
  .audio-btn { width: 48px; height: 48px; }
  .long-grid { grid-template-columns: 1fr; }
  .random-row { gap: 0.5rem; }
  .random-block { padding: 0.7rem; }
  .range-grid { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
  .seg-modes .seg-btn { font-size: 0.85rem; padding: 0.45em 0.9em; }
  .ring { width: 160px; height: 160px; }
  .ring-in { width: 128px; height: 128px; }
  .ring-in strong { font-size: 2.8rem; }
  .w-row { flex-direction: column; gap: 0; }
  .w-row span { width: auto; }
  .tab-block { flex-direction: column; align-items: flex-start; gap: 0.3rem; }
  .tabs { max-width: 100%; }
  .seg-small { margin-left: 0; }
  .ctl.quick { margin-left: 0; }
  .admin-controls .ctl { width: 100%; }
  .admin-controls .inp { width: 100%; }
  .date-pair .inp { width: auto; flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}