/* ==========================================================
   TEAPライティング道場 — style.css
   TEAP公式冊子ライクな、白基調・ネイビー・シンプルUI
   ========================================================== */
:root{
  --navy:#123a6b;
  --navy-d:#0d2a4e;
  --navy-l:#2c5fa8;
  --accent:#d8452b;
  --accent-l:#fdece8;
  --ink:#1b2430;
  --ink-2:#4a5768;
  --ink-3:#7b879a;
  --line:#dfe4ec;
  --line-2:#eef1f6;
  --bg:#f4f6fa;
  --card:#ffffff;
  --good:#15803d;
  --good-bg:#eaf6ee;
  --warn:#b45309;
  --warn-bg:#fdf4e3;
  --bad:#b91c1c;
  --bad-bg:#fdeceb;
  --r:10px;
  --shadow:0 1px 2px rgba(18,58,107,.06), 0 8px 24px rgba(18,58,107,.06);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Noto Sans JP",system-ui,-apple-system,"Hiragino Kaku Gothic ProN",sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.8;
  font-size:16px; -webkit-font-smoothing:antialiased;
}
[hidden]{display:none !important}
b,strong{font-weight:700}
a{color:var(--navy-l)}
.small{font-size:.8rem}
.hint{font-size:.8rem;color:var(--ink-3);margin-top:.5rem}

/* ---------- header ---------- */
.hdr{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.hdr-in{max-width:900px;margin:0 auto;padding:.55rem 1rem;display:flex;align-items:center;gap:1rem;justify-content:space-between}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:inherit;min-width:0}
.stamp{
  width:36px;height:36px;flex:none;
  border:2.5px solid var(--navy);border-radius:9px;background:#fff;
  display:grid;place-items:center;
  font-size:1.15rem;font-weight:900;color:var(--navy);line-height:1;
}
.brand-txt{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.brand-txt b{font-size:1.02rem;color:var(--navy-d);white-space:nowrap;letter-spacing:.01em;overflow:hidden;text-overflow:ellipsis}
.brand-txt small{font-size:.64rem;color:var(--ink-3);letter-spacing:.03em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hdr-nav{display:flex;align-items:center;gap:.15rem;flex:none}
.hdr-nav a{
  font-size:.82rem;color:var(--ink-2);text-decoration:none;padding:.35rem .6rem;border-radius:6px;white-space:nowrap;
}
.hdr-nav a:hover{background:var(--line-2);color:var(--navy)}
.hdr-nav a.is-on{background:var(--navy);color:#fff}
.hdr-nav a.ext{color:var(--ink-3);font-size:.75rem}
/* モバイル: ヘッダーを2段（上=ブランド / 下=セグメント型ナビ）に */
@media(max-width:700px){
  .hdr-in{flex-direction:column;align-items:stretch;gap:.5rem;padding:.6rem .9rem .55rem}
  .brand{justify-content:center}
  .hdr-nav{
    background:var(--line-2);border-radius:999px;padding:3px;gap:2px;
    justify-content:stretch;max-width:340px;width:100%;margin:0 auto;
  }
  .hdr-nav a{
    flex:1;text-align:center;font-size:.8rem;font-weight:700;
    padding:.32rem .4rem;border-radius:999px;color:var(--ink-2);
  }
  .hdr-nav a.is-on{background:var(--navy);color:#fff;box-shadow:0 2px 6px rgba(18,58,107,.28)}
  .hdr-nav a.ext{display:none}
  .exam-bar{top:110px}
}
@media(max-width:560px){
  .sub-ext{display:none}
}
@media(max-width:380px){
  .bubble{font-size:.56rem;padding:.2rem .45rem}
  .brand-txt b{font-size:.95rem}
}

/* AIはらだくんの吹き出し */
.bubble{
  position:relative;flex:none;
  background:var(--accent);color:#fff;
  font-size:.66rem;font-weight:900;letter-spacing:.02em;
  padding:.28rem .6rem;border-radius:999px;
  margin-right:.55rem;white-space:nowrap;
}
.bubble::after{
  content:"";position:absolute;right:-5px;top:50%;transform:translateY(-50%);
  border:5px solid transparent;border-left-color:var(--accent);border-right:0;
}
@media(max-width:640px){.bubble{font-size:.6rem;padding:.22rem .5rem;margin-right:.45rem}}


/* ---------- layout ---------- */
.wrap{max-width:900px;margin:0 auto;padding:1.4rem 1rem 4rem}
.page-h1{font-size:1.5rem;font-weight:900;color:var(--navy);margin-bottom:.4rem;letter-spacing:.01em}
.page-lead{color:var(--ink-2);font-size:.9rem;margin-bottom:1.4rem}

/* ---------- hero ---------- */
.hero{text-align:center;padding:1.6rem 0 2rem}
.hero-kicker{
  display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.08em;
  color:var(--navy);background:#e8effa;border-radius:99px;padding:.3rem .9rem;margin-bottom:1rem;
}
.hero-h1{font-size:clamp(1.02rem,4.75vw,2.3rem);font-weight:900;line-height:1.5;color:var(--navy-d);letter-spacing:.01em}
.hero-h1 .nw{white-space:nowrap}
.hero-h1 .hl{
  background:linear-gradient(transparent 62%, #ffe08a 62%);
  padding:0 .08em;
}
.hero-lead{margin-top:1rem;color:var(--ink-2);font-size:.9rem}

/* ---------- menu cards ---------- */
.menu{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
@media(max-width:640px){.menu{grid-template-columns:1fr}}
.menu-card{
  text-align:left;background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:1.1rem 1.1rem 1rem;cursor:pointer;font:inherit;color:inherit;
  box-shadow:var(--shadow);transition:.15s;position:relative;overflow:hidden;
}
.menu-card::after{
  content:"→";position:absolute;right:1.05rem;bottom:.85rem;
  font-weight:900;color:#c3ccda;font-size:1rem;transition:.15s;
}
.menu-card:hover::after{color:var(--navy-l);transform:translateX(3px)}
.menu-card:hover{transform:translateY(-2px);border-color:var(--navy-l);box-shadow:0 6px 22px rgba(18,58,107,.13)}
.menu-card h2{font-size:1.08rem;font-weight:900;color:var(--navy-d);margin:.45rem 0 .35rem}
.menu-card p{font-size:.83rem;color:var(--ink-2);line-height:1.75}
.mc-tag{display:inline-block;font-size:.66rem;font-weight:900;letter-spacing:.06em;padding:.2rem .5rem;border-radius:4px}
.tag-a{background:#e8effa;color:var(--navy)}
.tag-b{background:#e0f2f5;color:#0e7490}
.tag-g{background:var(--accent-l);color:var(--accent)}
.tag-t{background:#fdf4e3;color:#b45309}
.mc-meta{display:block;margin-top:.6rem;font-size:.72rem;color:var(--ink-3);border-top:1px dashed var(--line);padding-top:.5rem}

.home-stats{margin-top:1rem}
.hs-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:.85rem 1.1rem;
  display:flex;gap:1.4rem;align-items:center;flex-wrap:wrap;font-size:.82rem;color:var(--ink-2);
}
.hs-card b{color:var(--navy);font-size:1.15rem;font-weight:900;margin-right:.15rem}

.note-box{margin-top:1.6rem;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.1rem 1.2rem}
.note-box h3{font-size:.92rem;color:var(--navy);margin-bottom:.6rem}
.note-box ul{margin:0;padding-left:1.1rem}
.note-box li{font-size:.81rem;color:var(--ink-2);margin-bottom:.45rem;line-height:1.75}

/* ---------- buttons ---------- */
.btn{
  font:inherit;font-weight:700;border-radius:8px;border:1px solid transparent;cursor:pointer;
  padding:.6rem 1.1rem;font-size:.88rem;transition:.15s;line-height:1.4;
}
.btn.primary{background:var(--navy);color:#fff}
.btn.primary:hover{background:var(--navy-d)}
.btn.primary:disabled{background:#a9b4c6;cursor:not-allowed}
.btn.ghost{background:#fff;border-color:var(--line);color:var(--ink-2)}
.btn.ghost:hover{border-color:var(--navy-l);color:var(--navy)}
.btn.lg{padding:.8rem 1.8rem;font-size:.98rem}
.btn.sm{padding:.45rem .9rem;font-size:.8rem}
.btn.xs{padding:.3rem .55rem;font-size:.78rem}
.btn.accent{background:var(--accent);color:#fff}

/* ---------- cards / forms ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.1rem 1.2rem;margin-bottom:1rem;box-shadow:var(--shadow)}
.card-h{font-size:.9rem;font-weight:900;color:var(--navy);margin-bottom:.75rem}
.seg{display:flex;gap:.5rem;flex-wrap:wrap}
.seg-btn{
  font:inherit;font-size:.83rem;font-weight:700;padding:.5rem .95rem;border-radius:8px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;transition:.15s;
}
.seg.small .seg-btn{font-size:.78rem;padding:.4rem .8rem}
.seg-btn:hover{border-color:var(--navy-l)}
.seg-btn.is-on{background:var(--navy);border-color:var(--navy);color:#fff}
.ta{
  width:100%;margin-top:.7rem;padding:.8rem;border:1px solid var(--line);border-radius:8px;
  font-family:"Noto Serif",Georgia,serif;font-size:.92rem;line-height:1.9;resize:vertical;color:var(--ink);
  background:#fdfdfe;
}
.ta:focus{outline:2px solid var(--navy-l);outline-offset:-1px;background:#fff}
.ta-foot{display:flex;justify-content:flex-end;margin-top:.35rem}
.wc{font-size:.78rem;font-weight:700;color:var(--ink-3);background:var(--line-2);padding:.2rem .6rem;border-radius:99px}
.wc.ok{background:var(--good-bg);color:var(--good)}
.wc.ng{background:var(--bad-bg);color:var(--bad)}
.submit-row{text-align:center;padding:.5rem 0 1rem}

/* ---------- drop zone / thumbs ---------- */
.drop{
  margin-top:.7rem;border:2px dashed var(--line);border-radius:10px;background:#fbfcfe;
  padding:1.5rem 1rem;text-align:center;cursor:pointer;transition:.15s;
}
.drop:hover,.drop.over{border-color:var(--navy-l);background:#f4f8ff}
.drop p{font-size:.83rem;color:var(--ink-2)}
.thumbs{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:.7rem}
.thumb{position:relative;width:88px;height:88px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb button{
  position:absolute;top:2px;right:2px;width:22px;height:22px;border-radius:50%;border:0;
  background:rgba(0,0,0,.6);color:#fff;font-size:.72rem;cursor:pointer;line-height:1;
}

/* ---------- loading ---------- */
.gen-box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:2.6rem 1.4rem;text-align:center;box-shadow:var(--shadow)}
.gen-box h2{font-size:1.1rem;color:var(--navy);margin-bottom:.5rem}
.gen-msg{font-size:.86rem;color:var(--ink-2);min-height:1.7em}
.gen-sub{font-size:.75rem;color:var(--ink-3);margin-top:.8rem}
.bar{height:6px;background:var(--line-2);border-radius:99px;overflow:hidden;margin:1.2rem auto 0;max-width:420px}
.bar-fill{height:100%;width:4%;background:linear-gradient(90deg,var(--navy-l),var(--navy));transition:width .6s ease}
.gen-spinner{display:flex;gap:.4rem;justify-content:center;margin-bottom:1.2rem}
.gen-spinner i{width:11px;height:11px;border-radius:50%;background:var(--navy-l);animation:bounce 1.1s infinite ease-in-out}
.gen-spinner i:nth-child(2){animation-delay:.16s}
.gen-spinner i:nth-child(3){animation-delay:.32s}
@keyframes bounce{0%,80%,100%{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}
.scan{display:flex;justify-content:center;margin-bottom:1.3rem}
.scan-paper{position:relative;width:120px;height:150px;background:#fff;border:1px solid var(--line);border-radius:4px;padding:16px 12px;overflow:hidden;box-shadow:var(--shadow)}
.scan-paper span{display:block;height:7px;border-radius:3px;background:var(--line-2);margin-bottom:11px}
.scan-paper span:nth-child(2){width:78%}
.scan-paper span:nth-child(4){width:62%}
.scan-paper span:nth-child(5){width:85%}
.scan-line{position:absolute;left:0;right:0;height:2px;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:scan 1.8s ease-in-out infinite}
@keyframes scan{0%,100%{top:6%}50%{top:92%}}

/* ---------- exam bar / timer ---------- */
.exam-bar{
  position:sticky;top:60px;z-index:40;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:.55rem .8rem;display:flex;align-items:center;justify-content:space-between;gap:.5rem;
  flex-wrap:wrap;margin-bottom:1rem;box-shadow:var(--shadow);
}
.eb-left{display:flex;align-items:center;gap:.6rem;min-width:0}
.eb-topic{font-size:.78rem;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.eb-right{display:flex;align-items:center;gap:.4rem;flex:none}
.chip{font-size:.7rem;font-weight:900;background:var(--navy);color:#fff;padding:.24rem .55rem;border-radius:5px;letter-spacing:.04em;flex:none}
.timer{display:flex;align-items:center;gap:.3rem;background:var(--line-2);border-radius:8px;padding:.2rem .3rem .2rem .6rem}
.timer-val{font-variant-numeric:tabular-nums;font-weight:900;font-size:.95rem;color:var(--navy-d);letter-spacing:.02em}
.timer.warn .timer-val{color:var(--accent)}
.timer.over .timer-val{color:var(--bad)}
.timer-btn{border:0;background:var(--navy);color:#fff;width:26px;height:26px;border-radius:6px;cursor:pointer;font-size:.7rem;line-height:1}

/* ---------- booklet ---------- */
.booklet{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:1.6rem 1.5rem;box-shadow:var(--shadow);margin-bottom:1.1rem;
}
@media(max-width:560px){.booklet{padding:1.2rem 1rem}}
.bk-head{border-bottom:2px solid var(--navy);padding-bottom:.6rem;margin-bottom:1.2rem}
.bk-head h2{font-size:1.05rem;color:var(--navy-d);font-weight:900}
.bk-head p{font-size:.78rem;color:var(--ink-3);margin-top:.2rem}
.bk-inst{
  background:#f7f9fd;border:1px solid #dde6f2;border-radius:8px;
  padding:.85rem 1rem;margin-bottom:1.3rem;
}
.bk-inst p{font-family:"Noto Serif",Georgia,serif;font-size:.9rem;line-height:1.85;color:var(--ink)}
.bk-inst .jp{font-family:"Noto Sans JP",sans-serif;font-size:.76rem;color:var(--ink-3);margin-top:.45rem;line-height:1.7}
.src{border:1px solid var(--line);border-radius:8px;margin-bottom:1.2rem;overflow:hidden}
.src-head{
  background:var(--line-2);padding:.45rem .8rem;font-size:.75rem;font-weight:900;color:var(--navy);
  display:flex;justify-content:space-between;align-items:center;gap:.5rem;border-bottom:1px solid var(--line);
}
.src-head .src-kind{font-weight:500;color:var(--ink-3);font-size:.7rem}
.src-body{padding:1rem}
.src-body p.en{font-family:"Noto Serif",Georgia,serif;font-size:.92rem;line-height:2;color:var(--ink);text-align:justify}
.src-body p.en + p.en{margin-top:.85rem;text-indent:1em}
.src-title{font-family:"Noto Serif",Georgia,serif;font-weight:700;font-size:.98rem;margin-bottom:.5rem;color:var(--navy-d)}
.src-byline{font-size:.74rem;color:var(--ink-3);margin-bottom:.7rem;font-style:italic}
.chart-box{padding:.6rem .2rem .2rem}
.chart-title{font-size:.84rem;font-weight:700;text-align:center;margin-bottom:.5rem;color:var(--ink)}
.chart-note{font-size:.72rem;color:var(--ink-3);text-align:center;margin-top:.4rem}
.dtable{width:100%;border-collapse:collapse;font-size:.82rem;margin-top:.3rem}
.dtable th,.dtable td{border:1px solid var(--line);padding:.4rem .6rem;text-align:center}
.dtable th{background:var(--line-2);font-weight:700;color:var(--navy)}
.dtable td.lbl{text-align:left}
.bk-q{
  background:#fff8f6;border:1px solid #f3d5cd;border-radius:8px;padding:1rem 1.1rem;margin-top:.4rem;
}
.bk-q .q-label{font-size:.7rem;font-weight:900;color:var(--accent);letter-spacing:.06em;margin-bottom:.4rem}
.bk-q p{font-family:"Noto Serif",Georgia,serif;font-size:.95rem;line-height:1.9;font-weight:700;color:var(--ink)}
.bk-q .jp{font-family:"Noto Sans JP",sans-serif;font-size:.76rem;font-weight:400;color:var(--ink-3);margin-top:.5rem;line-height:1.7}

/* ---------- answer area ---------- */
.answer-area{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.1rem 1.2rem;box-shadow:var(--shadow)}
.aa-head{display:flex;justify-content:space-between;align-items:center;gap:.6rem;flex-wrap:wrap;margin-bottom:.6rem}
.aa-head h3{font-size:.92rem;color:var(--navy);font-weight:900}
.aa-tools{display:flex;align-items:center;gap:.5rem}
.answer-input{
  width:100%;min-height:230px;padding:.9rem;border:1px solid var(--line);border-radius:8px;
  font-family:"Noto Serif",Georgia,serif;font-size:.95rem;line-height:2.1;resize:vertical;
  background:repeating-linear-gradient(#fdfdfe 0 calc(2.1em - 1px), #eef1f6 calc(2.1em - 1px), #eef1f6 2.1em);
}
.answer-input:focus{outline:2px solid var(--navy-l);outline-offset:-1px}
.aa-actions{display:flex;justify-content:space-between;align-items:center;gap:.6rem;margin-top:1rem;flex-wrap:wrap}
.photo-slot{margin-top:.4rem}

/* ---------- result ---------- */
.res-top{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.4rem 1.3rem;box-shadow:var(--shadow);margin-bottom:1rem}
.res-meta{display:flex;justify-content:space-between;align-items:center;gap:.6rem;flex-wrap:wrap;margin-bottom:1rem}
.res-meta .date{font-size:.75rem;color:var(--ink-3)}
.score-row{display:flex;align-items:center;gap:1.6rem;flex-wrap:wrap}
.gauge-wrap{position:relative;width:150px;height:150px;flex:none}
.gauge{transform:rotate(-90deg)}
.gauge circle{fill:none;stroke-width:13;stroke-linecap:round}
.g-track{stroke:var(--line-2)}
.g-fill{stroke:var(--navy-l);stroke-dasharray:408.4;stroke-dashoffset:408.4;transition:stroke-dashoffset 1.3s cubic-bezier(.2,.8,.3,1)}
.gauge-c{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.g-score{font-size:2.2rem;font-weight:900;color:var(--navy-d);line-height:1;font-variant-numeric:tabular-nums}
.g-max{font-size:.72rem;color:var(--ink-3);font-weight:500}
.cefr-badge{margin-top:.35rem;font-size:.75rem;font-weight:900;padding:.18rem .6rem;border-radius:99px;background:var(--navy);color:#fff}
.cefr-badge.b2{background:var(--good)}
.cefr-badge.b1{background:var(--navy-l)}
.cefr-badge.a2{background:var(--warn)}
.cefr-badge.a1{background:var(--ink-3)}
.score-side{flex:1;min-width:230px}
.exam-comment{font-size:.87rem;color:var(--ink-2);line-height:1.9}
.res-pills{display:flex;gap:.45rem;flex-wrap:wrap;margin-top:.8rem}
.pill{font-size:.74rem;font-weight:700;padding:.25rem .65rem;border-radius:99px;background:var(--line-2);color:var(--ink-2)}
.pill.ok{background:var(--good-bg);color:var(--good)}
.pill.ng{background:var(--bad-bg);color:var(--bad)}
.pill.warn{background:var(--warn-bg);color:var(--warn)}

.crit-grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem;margin-bottom:1rem}
@media(max-width:640px){.crit-grid{grid-template-columns:1fr}}
.crit{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:.9rem 1rem;box-shadow:var(--shadow)}
.crit-h{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.45rem}
.crit-h .nm{font-size:.86rem;font-weight:900;color:var(--navy-d)}
.crit-h .bd{font-size:1.25rem;font-weight:900;color:var(--navy-l);font-variant-numeric:tabular-nums}
.crit-h .bd small{font-size:.68rem;color:var(--ink-3);font-weight:500}
.crit-bar{height:7px;background:var(--line-2);border-radius:99px;overflow:hidden}
.crit-bar i{display:block;height:100%;width:0;background:var(--navy-l);border-radius:99px;transition:width .9s ease}
.crit.lv-hi .crit-bar i{background:var(--good)} .crit.lv-hi .bd{color:var(--good)}
.crit.lv-lo .crit-bar i{background:var(--accent)} .crit.lv-lo .bd{color:var(--accent)}
.crit p{font-size:.79rem;color:var(--ink-2);margin-top:.55rem;line-height:1.75}

.tabs{display:flex;gap:.3rem;overflow-x:auto;padding-bottom:.3rem;margin-bottom:.9rem;-webkit-overflow-scrolling:touch}
.tabs::-webkit-scrollbar{height:0}
.tab{
  font:inherit;font-size:.8rem;font-weight:700;white-space:nowrap;padding:.5rem .85rem;border-radius:8px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;flex:none;
}
.tab.is-on{background:var(--navy);border-color:var(--navy);color:#fff}
.tpanel{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.2rem 1.25rem;box-shadow:var(--shadow)}
@media(max-width:560px){.tpanel{padding:1rem}}
.tpanel h4{font-size:.86rem;color:var(--navy);margin-bottom:.6rem;font-weight:900}
.tpanel h4:not(:first-child){margin-top:1.5rem}
.sw{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:640px){.sw{grid-template-columns:1fr}}
.sw-col{border-radius:8px;padding:.9rem 1rem}
.sw-good{background:var(--good-bg)} .sw-bad{background:var(--warn-bg)}
.sw-col h4{margin-bottom:.5rem}
.sw-good h4{color:var(--good)} .sw-bad h4{color:var(--warn)}
.sw-col ul{padding-left:1.1rem;margin:0}
.sw-col li{font-size:.81rem;line-height:1.8;margin-bottom:.4rem;color:var(--ink-2)}

.corr{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;padding:.8rem 1rem;margin-bottom:.7rem;background:#fffdfd}
.corr-type{display:inline-block;font-size:.66rem;font-weight:900;background:var(--accent-l);color:var(--accent);padding:.15rem .5rem;border-radius:4px;margin-bottom:.45rem}
.corr-type.sev-低{background:var(--line-2);color:var(--ink-3)}
.corr .o{font-family:"Noto Serif",Georgia,serif;font-size:.88rem;color:var(--bad);text-decoration:line-through;text-decoration-color:rgba(185,28,28,.35);line-height:1.8}
.corr .c{font-family:"Noto Serif",Georgia,serif;font-size:.88rem;color:var(--good);font-weight:700;line-height:1.8;margin-top:.2rem}
.corr .e{font-size:.79rem;color:var(--ink-2);margin-top:.45rem;line-height:1.75}
.empty{font-size:.85rem;color:var(--ink-3);text-align:center;padding:1.6rem 0}

.vtable{width:100%;border-collapse:collapse;font-size:.82rem}
.vtable th,.vtable td{border-bottom:1px solid var(--line);padding:.55rem .5rem;text-align:left;vertical-align:top}
.vtable th{font-size:.72rem;color:var(--ink-3);font-weight:700}
.vtable .from{color:var(--ink-3);text-decoration:line-through}
.vtable .to{color:var(--good);font-weight:700}

.smap{list-style:none;padding:0}
.smap li{display:flex;gap:.6rem;padding:.55rem 0;border-bottom:1px dashed var(--line);align-items:flex-start}
.smap .role{font-size:.68rem;font-weight:900;padding:.15rem .45rem;border-radius:4px;background:#e8effa;color:var(--navy);flex:none;margin-top:.2rem;white-space:nowrap}
.smap .role.bad{background:var(--bad-bg);color:var(--bad)}
.smap .txt{font-family:"Noto Serif",Georgia,serif;font-size:.84rem;line-height:1.8}
.smap .nt{font-size:.75rem;color:var(--ink-3);display:block;font-family:"Noto Sans JP",sans-serif}

.chk{list-style:none;padding:0}
.chk li{display:flex;gap:.55rem;font-size:.82rem;padding:.45rem 0;border-bottom:1px dashed var(--line);align-items:flex-start;line-height:1.7}
.chk .mk{flex:none;font-weight:900}
.chk .mk.y{color:var(--good)} .chk .mk.n{color:var(--bad)}
.chk .nt{color:var(--ink-3);font-size:.76rem;display:block}

.model-ans{font-family:"Noto Serif",Georgia,serif;font-size:.93rem;line-height:2.05;background:#f7f9fd;border-radius:8px;padding:1rem 1.1rem;white-space:pre-wrap;text-align:justify}
.model-note{font-size:.8rem;color:var(--ink-2);margin-top:.7rem;line-height:1.8}
.transcript{font-family:"Noto Serif",Georgia,serif;font-size:.9rem;line-height:2;white-space:pre-wrap;background:#fbfcfe;border:1px solid var(--line);border-radius:8px;padding:1rem}
mark.ill{background:#fde68a;color:#78350f;border-radius:3px;padding:0 .2em}
.advice{font-size:.86rem;line-height:1.95;color:var(--ink-2);white-space:pre-wrap}
.drills{padding-left:1.1rem;margin-top:.7rem}
.drills li{font-size:.83rem;line-height:1.8;margin-bottom:.45rem;color:var(--ink-2)}
.res-actions{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap;margin:1.4rem 0 .6rem}
.diff-ins{background:#dcfce7;border-radius:3px;padding:0 .12em}
.diff-del{background:#fee2e2;color:#991b1b;text-decoration:line-through;border-radius:3px;padding:0 .12em;opacity:.75}

/* ---------- 生成確認・残回数・APIコーナー ---------- */
.gen-actions{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap;margin-top:1.3rem}
.quota-box{margin-top:1rem}
.quota-box .hs-card{font-size:.8rem}
.quota-ok{border-color:#bfe3cd;background:#f2faf5}
.quota-ng{border-color:#f3c9c4;background:#fdf3f2}
.muted-sm{color:var(--ink-3);font-size:.73rem}
.api-box .api-lead{font-size:.82rem;color:var(--ink-2);margin-bottom:.7rem;line-height:1.8}
.api-row{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.api-input{
  flex:1;min-width:220px;padding:.55rem .8rem;border:1px solid var(--line);border-radius:8px;
  font:inherit;font-size:.85rem;background:#fdfdfe;
}
.api-input:focus{outline:2px solid var(--navy-l);outline-offset:-1px}
.api-status{font-size:.78rem;font-weight:700;color:var(--navy);margin-top:.55rem}

/* 折りたたみボックス（API接続・仕組み） */
.adv-box{padding:0;overflow:hidden}
.adv-box > summary{
  cursor:pointer;list-style:none;padding: .95rem 1.2rem;
  display:flex;align-items:baseline;gap:.7rem;flex-wrap:wrap;transition:.12s;
}
.adv-box > summary::-webkit-details-marker{display:none}
.adv-box > summary::before{content:"＋";color:var(--navy-l);font-weight:900;margin-right:-.1rem}
.adv-box[open] > summary::before{content:"−"}
.adv-box > summary:hover{background:#f7f9fd}
.adv-box > summary b{font-size:.9rem;color:var(--navy)}
.adv-box > summary .sum{font-size:.76rem;color:var(--ink-3)}
.adv-box .adv-body{padding:.2rem 1.2rem 1.1rem;border-top:1px solid var(--line-2)}
.adv-body .hint{line-height:1.85}
.api-row{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center;margin-top:.6rem}
.api-row label{flex:none;width:86px;font-size:.78rem;font-weight:700;color:var(--ink-2)}
.api-input{
  flex:1;min-width:200px;padding:.5rem .75rem;border:1px solid var(--line);border-radius:8px;
  font:inherit;font-size:.84rem;background:#fdfdfe;
}
.api-input:focus{outline:2px solid var(--navy-l);outline-offset:-1px}
.api-status{font-size:.78rem;font-weight:700;color:var(--navy);margin-top:.6rem;word-break:break-all}

/* 設問の和訳トグル */
.jp-toggle{margin-top:.55rem;font-family:"Noto Sans JP",sans-serif}
.jp-toggle summary{
  cursor:pointer;list-style:none;font-size:.74rem;font-weight:400;color:var(--ink-3);
  text-decoration:underline dotted;
}
.jp-toggle summary::-webkit-details-marker{display:none}
.jp-toggle .jp{margin-top:.4rem}

/* ---------- tips ---------- */
.tip-filter{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:1.1rem}
.tip-filter button{
  font:inherit;font-size:.76rem;font-weight:700;padding:.35rem .75rem;border-radius:99px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;
}
.tip-filter button.is-on{background:var(--navy);border-color:var(--navy);color:#fff}
.tip-sec{margin-bottom:1.6rem}
.tip-sec > h2{font-size:1rem;font-weight:900;color:var(--navy);margin-bottom:.7rem;padding-bottom:.4rem;border-bottom:2px solid var(--line)}
.tip{background:#fff;border:1px solid var(--line);border-radius:8px;margin-bottom:.5rem;overflow:hidden}
.tip > summary{
  cursor:pointer;list-style:none;padding:.75rem 1rem;font-size:.87rem;font-weight:700;color:var(--ink);
  display:flex;gap:.55rem;align-items:flex-start;transition:.12s;
}
.tip > summary::-webkit-details-marker{display:none}
.tip > summary:hover{background:#f7f9fd}
.tip > summary::before{content:"＋";color:var(--navy-l);font-weight:900;flex:none;font-size:.9rem;margin-top:.1rem}
.tip[open] > summary::before{content:"−"}
.tip[open] > summary{background:#f7f9fd;color:var(--navy-d)}
.tip-body{padding:.2rem 1rem 1rem 2.1rem;font-size:.83rem;line-height:1.9;color:var(--ink-2);border-top:1px solid var(--line-2)}
.tip-body p{margin-top:.6rem}
.tip-body ul,.tip-body ol{margin:.5rem 0 .5rem 1.1rem}
.tip-body li{margin-bottom:.3rem}
.tip-body code{
  font-family:"Noto Serif",Georgia,serif;background:#f1f4f9;border-radius:4px;padding:.08em .35em;
  font-size:.92em;color:var(--navy-d);
}
.tip-body .ex{background:#f7f9fd;border-left:3px solid var(--navy-l);padding:.6rem .8rem;border-radius:0 6px 6px 0;margin:.6rem 0;font-family:"Noto Serif",Georgia,serif;font-size:.86rem;line-height:1.85}
.tip-body .ng{background:var(--bad-bg);border-left-color:var(--bad)}
.tip-body .okbox{background:var(--good-bg);border-left-color:var(--good)}
.tip-body table{width:100%;border-collapse:collapse;font-size:.8rem;margin:.6rem 0}
.tip-body th,.tip-body td{border:1px solid var(--line);padding:.35rem .5rem;text-align:left}
.tip-body th{background:var(--line-2);color:var(--navy);font-weight:700}

/* ---------- history ---------- */
.hist-chart{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.1rem;margin-bottom:1rem;box-shadow:var(--shadow)}
.hist-list{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.hist-row{display:flex;align-items:center;gap:.8rem;padding:.75rem 1rem;border-bottom:1px solid var(--line-2);font-size:.82rem}
.hist-row:last-child{border-bottom:0}
.hist-row .hs{font-weight:900;font-size:1.05rem;color:var(--navy);width:2.6rem;flex:none;text-align:right;font-variant-numeric:tabular-nums}
.hist-row .ht{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink-2)}
.hist-row .hd{font-size:.72rem;color:var(--ink-3);flex:none}

/* ---------- SEO/解説セクション ---------- */
.seo-sec{margin-top:2.4rem;border-top:1px solid var(--line);padding-top:1.8rem}
.seo-sec h2{
  font-size:1.05rem;font-weight:900;color:var(--navy);margin:1.8rem 0 .7rem;
  padding-bottom:.4rem;border-bottom:2px solid var(--line);
}
.seo-sec h2:first-child{margin-top:0}
.seo-sec h3{font-size:.92rem;font-weight:900;color:var(--navy-d);margin:1.2rem 0 .4rem}
.seo-sec p{font-size:.85rem;color:var(--ink-2);line-height:1.95;margin-bottom:.5rem}
.seo-sec strong{color:var(--navy)}
.seo-links{list-style:none;padding:0;margin-top:.3rem}
.seo-links li{margin-bottom:.45rem}
.seo-links a{
  display:block;font-size:.85rem;font-weight:700;color:var(--navy-l);text-decoration:none;
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:.65rem .9rem;transition:.15s;
}
.seo-links a::before{content:"📖 ";}
.seo-links a:hover{border-color:var(--navy-l);background:#f7f9fd}

/* ---------- 上へ戻るボタン ---------- */
.to-top{
  position:fixed;right:1.1rem;bottom:1.2rem;z-index:70;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--navy);font-size:1.15rem;font-weight:900;cursor:pointer;
  box-shadow:0 6px 20px rgba(18,58,107,.18);
  opacity:0;transform:translateY(10px);transition:opacity .22s, transform .22s, background .15s;
  line-height:1;
}
.to-top.is-show{opacity:1;transform:translateY(0)}
.to-top:hover{background:var(--navy);color:#fff}
@media print{.to-top{display:none !important}}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;background:rgba(15,25,40,.5);display:grid;place-items:center;z-index:100;padding:1rem}
.modal-in{background:#fff;border-radius:12px;padding:1.5rem;max-width:440px;width:100%;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.modal-in h3{font-size:1rem;color:var(--bad);margin-bottom:.6rem}
.modal-in p{font-size:.86rem;color:var(--ink-2);line-height:1.8}
.modal-actions{display:flex;gap:.6rem;justify-content:flex-end;margin-top:1.2rem}

/* ---------- footer ---------- */
.ftr{border-top:1px solid var(--line);background:#fff;padding:1.8rem 1rem 1.6rem;text-align:center}
.ftr-copy{font-size:.86rem;font-weight:700;color:var(--ink-2);margin-bottom:.75rem}
.ftr-brand{
  display:inline-flex;flex-direction:column;align-items:center;gap:.15rem;
  text-decoration:none;padding:.7rem 2rem;border:2px solid var(--navy);border-radius:12px;
  transition:.15s;background:#fff;
}
.ftr-brand:hover{background:var(--navy)}
.ftr-brand .fb-name{font-size:1.25rem;font-weight:900;color:var(--navy);letter-spacing:.04em}
.ftr-brand .fb-sub{font-size:.72rem;color:var(--ink-3);font-weight:600}
.ftr-brand:hover .fb-name,.ftr-brand:hover .fb-sub{color:#fff}
.ftr p{font-size:.72rem;color:var(--ink-3)}
.ftr .small{font-size:.68rem;margin-top:.9rem}

/* ---------- print ---------- */
@media print{
  .hdr,.ftr,.exam-bar,.answer-area,.res-actions,.tabs{display:none !important}
  body{background:#fff}
  .wrap{max-width:none;padding:0}
  .booklet{border:0;box-shadow:none;padding:0}
  .src{break-inside:avoid}
}