/* ガイドブック荒尾 デジタルブック（見本）2026-09 */
:root{
  --orange:#F08A24; --orange-d:#D9741A; --ink:#23303a; --sub:#5b6b78;
  --line:#e2e8ee; --bg:#eef3f8; --card:#fff; --accent:#2E75B6; --green:#2f9e6b;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{background:var(--bg);color:var(--ink);
  font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,sans-serif;
  display:flex;flex-direction:column;overflow:hidden}

/* ── 上のバー ── */
.bar{flex:0 0 auto;background:#fff;border-bottom:1px solid var(--line);overflow:hidden;
  display:flex;align-items:center;gap:12px;padding:10px 16px;box-shadow:0 1px 6px rgba(0,0,0,.05);z-index:20}
.bar h1{font-size:15px;margin:0;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;min-width:0}
.bar h1 small{display:block;font-size:11px;color:var(--sub);font-weight:500}
.spacer{flex:1}
.btn{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:9px;
  padding:7px 12px;font-size:13px;cursor:pointer;white-space:nowrap;transition:.15s}
.btn:hover{background:#f5f9fd;border-color:var(--accent);color:var(--accent)}
.btn.primary{background:var(--orange);border-color:var(--orange);color:#fff}
.btn.primary:hover{background:var(--orange-d);border-color:var(--orange-d);color:#fff}
.demo{background:#fff4e5;color:#a8600c;border:1px solid #f3cf9f;border-radius:99px;
  padding:4px 12px;font-size:12px;font-weight:700}

/* ── 本の置き場 ── */
.stage{flex:1 1 auto;position:relative;display:flex;align-items:center;justify-content:center;padding:18px 66px}
#book{box-shadow:0 18px 50px rgba(20,40,60,.22);max-width:100%}
.stf__parent,.stf__block{max-width:100%!important}
.nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:64px;border-radius:10px;
  border:none;background:rgba(255,255,255,.92);box-shadow:0 4px 14px rgba(0,0,0,.14);
  font-size:20px;color:var(--sub);cursor:pointer;z-index:10}
.nav:hover{color:var(--accent)}
.nav.prev{left:12px} .nav.next{right:12px}

/* ── 下のバー ── */
.foot{flex:0 0 auto;background:#fff;border-top:1px solid var(--line);overflow:hidden;
  display:flex;align-items:center;gap:14px;padding:9px 16px;justify-content:center}
.foot input[type=range]{width:min(360px,40vw);accent-color:var(--orange)}
.pno{font-size:13px;color:var(--sub);min-width:86px;text-align:center;font-variant-numeric:tabular-nums}

/* ── ページの中身 ── */
.page{background:#fff;overflow:hidden}
.page img.pg{width:100%;height:100%;object-fit:contain;display:block;background:#fff}
.veil{position:absolute;inset:0;background:rgba(20,35,50,.35);opacity:0;pointer-events:none;transition:.2s;z-index:25}
.veil.on{opacity:1;pointer-events:auto}
.page .in{width:100%;height:100%;padding:30px 28px;display:flex;flex-direction:column;
  font-size:13.5px;line-height:1.85;word-break:normal;overflow-wrap:break-word;line-break:strict;text-wrap:pretty}
.page .in.pad-s{padding:26px 26px}
h2.ttl{margin:0 0 14px;font-size:19px;color:var(--orange);letter-spacing:.04em;
  border-bottom:3px solid var(--orange);padding-bottom:7px}
h3.sub{margin:16px 0 7px;font-size:14.5px;color:var(--accent);
  border-left:4px solid var(--accent);padding-left:9px}
.page table{width:100%;border-collapse:collapse;font-size:11.5px;margin:6px 0 10px}
.page th,.page td{border:1px solid var(--line);padding:5px 7px;vertical-align:top}
.page th{background:#f3f7fb;color:var(--accent);font-weight:700;text-align:left;white-space:nowrap}
.page td.c{text-align:center}
.pnum{margin-top:auto;padding-top:10px;text-align:center;color:#9aa8b4;font-size:11px}
.note{background:#f7fbf9;border:1px solid #cfe7dc;border-left:4px solid var(--green);
  border-radius:6px;padding:9px 12px;font-size:12px;color:#2c4a3e;margin:8px 0}
.mokuji{list-style:none;margin:0;padding:0}
.mokuji li{display:flex;align-items:baseline;gap:8px;padding:8px 2px;border-bottom:1px dotted #cfd8e0;cursor:pointer}
.mokuji li:hover{color:var(--accent)}
.mokuji .n{flex:0 0 26px;height:26px;border-radius:50%;background:var(--orange);color:#fff;
  font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:700}
.mokuji .d{flex:1;border-bottom:1px dotted #cfd8e0;transform:translateY(-4px)}
.mokuji .p{color:var(--sub);font-size:12px}

/* 表紙 */
.cover{position:relative;width:100%;height:100%;background:#cfe9f7;overflow:hidden}
.cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cover .band{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(180deg,rgba(240,138,36,.92),rgba(217,116,26,.97));
  color:#fff;padding:22px 24px 26px;text-align:center}
.cover .y{font-size:17px;letter-spacing:.22em;opacity:.95}
.cover .t1{font-size:25px;font-weight:800;letter-spacing:.12em;margin-top:4px;text-shadow:0 2px 6px rgba(0,0,0,.18)}
.cover .t2{font-size:31px;font-weight:800;letter-spacing:.14em;margin-top:2px;text-shadow:0 2px 6px rgba(0,0,0,.18)}
.cover .org{position:absolute;top:16px;left:0;right:0;text-align:center;color:#2b5a76;
  font-size:12px;letter-spacing:.14em;text-shadow:0 1px 3px rgba(255,255,255,.8)}
/* 裏表紙 */
.back{width:100%;height:100%;background:#f4f8fb;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:10px;padding:34px;text-align:center}
.back .logo{font-size:17px;font-weight:800;color:var(--accent);letter-spacing:.06em}
.back .l{font-size:12.5px;color:var(--sub);line-height:2}

/* もくじ・検索の引き出し */
.drawer{position:absolute;top:0;left:0;bottom:0;width:290px;background:#fff;z-index:30;
  box-shadow:6px 0 24px rgba(0,0,0,.14);transform:translateX(-102%);transition:.24s;
  padding:16px;overflow:auto}
.drawer.open{transform:none}
.drawer h4{margin:0 0 10px;font-size:14px;color:var(--accent)}
.drawer .x{position:absolute;top:10px;right:10px;border:none;background:none;font-size:18px;color:var(--sub);cursor:pointer}
.tocbtn{display:flex;justify-content:space-between;align-items:baseline;gap:8px;width:100%;text-align:left;
  border:1px solid var(--line);background:#fff;border-radius:8px;padding:9px 11px;margin-bottom:7px;font-size:13px;cursor:pointer}
.tocbtn b{color:var(--orange);font-size:12px;white-space:nowrap}
.tocbtn:hover{border-color:var(--orange);background:#fff8f0}
.tocbtn b{color:var(--orange);margin-right:7px}

@media (max-width:820px){
  .stage{padding:8px 30px}
  .bar h1{font-size:12.5px} .bar h1 small{display:none} .demo{display:none}
  .pno{font-size:11.5px;min-width:64px} .foot{gap:8px;padding:8px 10px}
  .hide-sp{display:none}
  .stage{padding:8px}
  .page .in{padding:22px 18px;font-size:12.5px;line-height:1.75}
  h2.ttl{font-size:16px} .page table{font-size:10.5px}
}