/* Udemy型の作り：白と黒が中心、差し色は1色、影とグラデーションは使わない、本物の画像が主役
   例外：確認テストの形式の札（4択・すべて選ぶ・○×・穴埋め）と、管理画面のサイドバーの選択中の線は色を使う */
:root {
  --bg: #FFFFFF; --soft: #F7F9FA; --soft2: #EEF1F3; --line: #D1D7DC; --line2: #B6BDC2;
  --ink: #1C1D1F; --ink2: #6A6F73; --ink3: #9DA3A7;
  --accent: #B23A1F; --accent-dark: #8E2D17; --accent-soft: #F7ECE8;
  --dark: #1F2233; --dark2: #2D3045;
  --ok: #1E8A50; --warn: #B4690E; --warn-soft: #FCF5E8; --live: #D93A3A; --hl: #FFF3C2;
  --badge-y: #F2EDBF; --badge-y-ink: #3D3C0A; --badge-g: #D6F2E2; --badge-g-ink: #0F4D2C;
  /* 確認テストの形式の色（札の背景・文字・線）。文字と背景のコントラストは 4.5:1 以上 */
  --qk-single-bg: #F7ECE8; --qk-single-ink: #8E2D17; --qk-single-line: #B23A1F;
  --qk-multi-bg: #E3EDFA; --qk-multi-ink: #1D4F91; --qk-multi-line: #2F6BC0;
  --qk-tf-bg: #DDF3E6; --qk-tf-ink: #0F5A33; --qk-tf-line: #1E8A50;
  --qk-blank-bg: #FBEFC4; --qk-blank-ink: #6B4A00; --qk-blank-line: #C99400;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font: 15px/1.6 "Noto Sans JP", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; color: inherit; }
input, select, textarea { font: inherit; color: var(--ink); background: #fff; border: 1px solid var(--ink); border-radius: 4px; padding: 9px 12px; }
.num { font-family: "Inter", "Noto Sans JP", sans-serif; font-variant-numeric: tabular-nums; }
i.i { font-size: 20px; line-height: 1; flex-shrink: 0; }
i.i.sm { font-size: 16px; }
i.i.ok { color: var(--ok); } i.i.acc { color: var(--ink); } i.i.faint { color: var(--ink3); }
.sub { color: var(--ink2); } .faint { color: var(--ink3); } .small { font-size: 13px; }
h1 { font: 700 32px/1.35 "Shippori Mincho B1", "Noto Serif JP", serif; margin: 0 0 16px; letter-spacing: .02em; }
h2 { font: 700 23px/1.4 "Shippori Mincho B1", "Noto Serif JP", serif; margin: 40px 0 16px; letter-spacing: .02em; }
h3 { font-size: 16px; font-weight: 700; margin: 0; }
.wrap { max-width: 1340px; margin: 0 auto; padding: 32px 24px 64px; }
.mocknote { font-size: 11px; color: var(--ink3); }

/* ボタン */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid var(--accent); background: var(--accent); color: #fff; border-radius: 4px; padding: 0 16px; height: 44px; font-weight: 700; font-size: 15px; white-space: nowrap; }
.btn:hover { background: var(--accent-dark); }
.btn.ghost, .btn.line { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn.ghost:hover, .btn.line:hover { background: var(--soft); }
.btn.dark { background: var(--ink); border-color: var(--ink); }
.btn.sm { height: 36px; font-size: 14px; padding: 0 12px; }
.btn.block { width: 100%; }
.btn.lines { white-space: normal; height: auto; min-height: 44px; padding-top: 6px; padding-bottom: 6px; text-align: center; } /* 長い文言のボタン（狭い画面で折り返す） */
.link { color: var(--accent); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.card { background: #fff; border: 1px solid var(--line); }
.tag { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 700; padding: 1px 6px; border-radius: 2px; border: 1px solid var(--line2); background: #fff; color: var(--ink2); }
.tag.free { border-color: var(--accent); color: var(--accent); }
.tag.new { border-color: var(--ink); color: var(--ink); }
.tag.member, .tag.soon { color: var(--ink3); }
.tag.done { background: var(--badge-g); color: var(--badge-g-ink); }
mark { background: var(--hl); color: inherit; }

/* 上のバー */
.side { display: none; }
.top { position: sticky; top: 0; z-index: 30; height: 72px; display: flex; align-items: center; gap: 20px; padding: 0 24px; background: #fff; border-bottom: 1px solid var(--line); }
.logo { display: flex; align-items: center; gap: 10px; font: 700 20px/1 "Shippori Mincho B1", "Noto Serif JP", serif; white-space: nowrap; letter-spacing: .02em; }
.logo .mark { width: 24px; height: 24px; border: 1.5px solid var(--accent); display: grid; place-items: center; color: var(--accent); font-size: 13px; font-weight: 700; }
.top .cat { font-size: 14px; color: var(--ink); white-space: nowrap; }
.search { flex: 1; position: relative; }
.search .ico { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--ink2); display: flex; }
.search input { width: 100%; height: 44px; border-radius: 4px; background: var(--soft); border: 1px solid var(--line2); padding-left: 48px; font-size: 14px; }
.search input:focus { outline: none; border-color: var(--ink); background: #fff; }
/* キーボードで動かしたときの輪郭（マウスで押したときは出さない）。検索欄で消した outline もここで戻す */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.search input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.toplinks { display: flex; align-items: center; gap: 4px; font-size: 14px; white-space: nowrap; }
.toplinks > a { padding: 8px 10px; border-radius: 4px; }
.toplinks > a:hover { background: var(--soft); color: var(--accent); }
.icon-btn { position: relative; display: grid; place-items: center; width: 44px; height: 44px; border: none; background: none; border-radius: 4px; color: var(--ink); }
.icon-btn:hover { background: var(--soft); }
.badge-num { position: absolute; top: 4px; right: 4px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px; background: var(--accent); color: #fff; font-size: 11px; font-weight: 700; display: grid; place-items: center; }
.user { position: relative; }
.user { display: flex; gap: 8px; }
.user > button { border: none; background: none; padding: 4px; display: flex; align-items: center; }
.avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 14px; flex-shrink: 0; }
.avatar.lg { width: 64px; height: 64px; font-size: 24px; }
.avatar.sq { border-radius: 4px; }
.user > button { gap: 8px; font-size: 14px; }
.uname { white-space: nowrap; }
.menu-pop { position: absolute; right: 0; top: 52px; width: 260px; background: #fff; border: 1px solid var(--line); box-shadow: 0 2px 4px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.08); display: none; padding: 8px 0; }
.user.open .menu-pop { display: block; }
.menu-pop .head { display: flex; gap: 12px; align-items: center; padding: 8px 16px 16px; border-bottom: 1px solid var(--line); margin-bottom: 8px; font-size: 13px; }
.menu-pop .head b { display: block; font-size: 15px; }
.menu-pop a, .menu-pop button { display: flex; width: 100%; gap: 10px; align-items: center; padding: 8px 16px; border: none; background: none; font-size: 14px; text-align: left; }
.menu-pop a:hover, .menu-pop button:hover { color: var(--accent); }
.only-sp { display: none; }
.tabbar { display: none; }

/* 分類の帯 */
.subnav { border-bottom: 1px solid var(--line); background: #fff; }
.subnav .in { max-width: 1340px; margin: 0 auto; padding: 0 24px; display: flex; gap: 24px; font-size: 14px; overflow-x: auto; }
.subnav a { display: inline-flex; align-items: center; gap: 6px; padding: 12px 0; white-space: nowrap; }
.subnav a:hover { color: var(--accent); }
.subnav .sp { flex: 1; }
.badge-in { background: var(--accent); color: #fff; border-radius: 9px; font-size: 11px; padding: 0 6px; font-weight: 700; }
body.watching .subnav { display: none; }

/* ホーム */
.hmeta { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 13px; color: var(--ink2); margin-top: 4px; }
.hmeta span { display: inline-flex; align-items: center; gap: 6px; }
/* 上段：左に「学習を続ける」、右に写真と一言（写真に文字を重ねない） */
.lead-row { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 40px; margin-top: 8px; align-items: start; }
.lead-row .row-head { margin-top: 20px; }
.photo { display: block; margin-top: 20px; }
.photo img { width: 100%; aspect-ratio: 3/2; object-fit: cover; display: block; }
.photo .cap { display: grid; gap: 2px; padding: 12px 0 0; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.photo .cap b { font: 700 19px/1.4 "Shippori Mincho B1", "Noto Serif JP", serif; }
.photo .cap > span { font-size: 14px; color: var(--ink2); display: flex; justify-content: space-between; gap: 12px; }
.photo:hover .link { color: var(--accent-dark); }
.ccard .mine { min-height: 18px; }
.hello { padding-bottom: 16px; border-bottom: 1px solid var(--ink); }
.hello h1 { margin: 0; font-size: 30px; }
.hello a { font-size: 14px; }
.row-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin: 44px 0 16px; }
.row-head h2 { margin: 0; }
.row-head a { font-size: 14px; }
.resume { display: grid; border-top: 1px solid var(--line); }
.rcard { display: grid; grid-template-columns: 200px minmax(0, 1fr) auto; gap: 18px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--line); }
.rcard:hover b { color: var(--accent); }
.rcard .go { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; font-weight: 700; color: var(--accent); white-space: nowrap; }
.rcard .body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.rcard .cname { font-size: 12px; color: var(--ink2); font-weight: 700; }
.rcard b { font-size: 15px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rcard .left { margin-top: 4px; font-size: 12px; color: var(--ink2); }
.shot { position: relative; display: block; aspect-ratio: 16/9; background: var(--soft2); overflow: hidden; }
.shot img { width: 100%; height: 100%; object-fit: cover; display: block; }
.shot .playov { position: absolute; inset: 0; background: rgba(28,29,31,.35); display: grid; place-items: center; opacity: 0; transition: opacity .15s; }
.shot .playov span { width: 48px; height: 48px; border-radius: 50%; background: #fff; display: grid; place-items: center; color: var(--ink); font-size: 22px; }
.shot .pbar { position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: rgba(255,255,255,.6); }
.shot .pbar i { display: block; height: 100%; background: var(--accent); }
.shot .dur { position: absolute; right: 6px; bottom: 8px; background: rgba(28,29,31,.85); color: #fff; font-size: 11px; padding: 1px 6px; border-radius: 2px; }
.cover-soon { position: absolute; inset: 0; background: var(--dark); color: #fff; padding: 14px 16px; display: flex; flex-direction: column; justify-content: space-between; }
.cover-soon b { font-size: 22px; font-weight: 800; line-height: 1.25; }
.cover-soon span { font-size: 11px; letter-spacing: .12em; opacity: .7; }
/* 画像の無い講座（管理画面で足した講座）の表紙：白地に細い線、上に講座の色の帯、講座名を明朝で（data.js の plainCover） */
.cover-plain { position: absolute; inset: 0; container-type: inline-size; background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--cc, var(--line2)); padding: 6% 7%; display: flex; align-items: flex-end; }
.cover-plain b { font: 700 clamp(9px, 7.5cqi, 22px)/1.35 "Shippori Mincho B1", "Noto Serif JP", serif; color: var(--ink); letter-spacing: .02em; overflow-wrap: anywhere; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.cover-plain.mini { border-top-width: 2px; }

.ttabs { display: flex; gap: 24px; border-bottom: 1px solid var(--line); margin-bottom: 20px; overflow-x: auto; }
.ttabs button { border: none; background: none; padding: 10px 0 12px; font-size: 15px; font-weight: 700; color: var(--ink2); border-bottom: 2px solid transparent; white-space: nowrap; }
.ttabs button.on { color: var(--ink); border-bottom-color: var(--ink); }
.ttabs .n { font-weight: 400; font-size: 12px; margin-left: 4px; color: var(--ink3); }
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 20px; }
.toolbar .sort { margin-left: auto; display: flex; align-items: center; gap: 8px; font-size: 13px; }
.toolbar select { height: 40px; padding: 0 10px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; border-top: 1px solid var(--line); }
.ccard { display: grid; grid-template-columns: 42% minmax(0, 1fr); column-gap: 18px; row-gap: 3px; align-content: start; padding: 18px 0; border-bottom: 1px solid var(--line); }
.ccard > :not(.shot) { grid-column: 2; }
.ccard .shot { grid-column: 1; grid-row: 1 / span 7; align-self: start; }
.ccard:hover .shot img { filter: brightness(.88); }
.ccard h3 { font: 700 18px/1.4 "Shippori Mincho B1", "Noto Serif JP", serif; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ccard .by { font-size: 12px; color: var(--ink2); }
.ccard .goal { font-size: 13px; color: var(--ink); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ccard .meta { font-size: 12px; color: var(--ink2); }
.ccard .tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.ccard .mine { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--ink2); margin-top: 4px; }
.bar { flex: 1; height: 4px; background: var(--soft2); }
.bar > i { display: block; height: 100%; background: var(--accent); }
.hits { margin-top: 40px; }
.hit { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.hit:hover b { text-decoration: underline; }
.hit .where { font-size: 12px; color: var(--ink2); white-space: nowrap; min-width: 180px; }

/* 下の帯 */
.foot { background: #fff; color: var(--ink); border-top: 1px solid var(--ink); padding: 32px 24px; margin-top: 56px; }
.foot .in { max-width: 1340px; margin: 0 auto; display: flex; gap: 48px; flex-wrap: wrap; }
.foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 14px; }
.foot .logo { margin-left: auto; align-self: flex-end; }
.foot .mocknote { color: var(--ink3); width: 100%; }
body.watching .foot { display: none; }

/* 講座詳細 */
/* 講座詳細：授業の進行表の形。白地を線で区切り、上に講座名と進み具合（右に小さめの表紙）、次に受ける回、畳まない回の一覧、身につくこと・資料・訂正 */
.cpage { max-width: 1040px; margin: 0 auto; padding: 0 24px 40px; }
.chead { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 40px; align-items: end; padding: 28px 0 24px; border-bottom: 2px solid var(--ink); }
.crumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink2); margin-bottom: 20px; flex-wrap: wrap; }
.crumb a:hover { color: var(--accent); text-decoration: underline; }
.crumb span { color: var(--ink); }
.chead h1 { font-size: 36px; margin-bottom: 8px; }
.chead .lead { font-size: 17px; margin: 0 0 12px; }
.chead .meta { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 13px; color: var(--ink2); align-items: center; }
.chead .meta a { color: var(--ink); text-decoration: underline; }
.chead .facts { display: flex; flex-wrap: wrap; margin: 12px 0 0; font-size: 14px; }
.chead .facts > span + span::before { content: "・"; color: var(--ink3); }
.cprog { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 13px; max-width: 420px; }
.cprog .bar { height: 3px; }
.cprog .num { font-weight: 700; }
.cimg { display: grid; gap: 8px; }
.cimg .small { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 700; }
.cimg:hover .shot img { filter: brightness(.92); }
.cnext { display: flex; align-items: center; justify-content: space-between; gap: 16px 32px; padding: 20px 0; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.cnext .txt { display: grid; gap: 2px; min-width: 0; }
.cnext .lbl { font-size: 12px; font-weight: 700; color: var(--accent); letter-spacing: .06em; }
.cnext b { font: 700 22px/1.4 "Shippori Mincho B1", "Noto Serif JP", serif; }
.cnext b a:hover { color: var(--accent); text-decoration: underline; }
.csec { border-bottom: 1px solid var(--line); padding-bottom: 28px; }
.csec:last-child { border-bottom: none; }
.csec > h2:first-child { margin-top: 28px; }
.ltable { border-top: 1px solid var(--ink); }
.lhead, .lrow { display: grid; grid-template-columns: 36px minmax(0, 1fr) 48px 72px 56px; align-items: center; column-gap: 8px; }
.lhead { font-size: 12px; color: var(--ink2); padding: 8px 0; border-bottom: 1px solid var(--line); }
.lhead .m, .lrow .m { text-align: center; }
.lhead .d, .lrow .d { text-align: right; }
.lrow { padding: 11px 0; font-size: 14px; border-bottom: 1px solid var(--soft2); }
.lrow .n { color: var(--ink2); }
.lrow .t { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 8px; min-width: 0; }
.lrow:hover .tt { color: var(--accent); text-decoration: underline; }
.lrow .pv { color: var(--accent); font-size: 12px; border: 1px solid var(--accent); border-radius: 2px; padding: 0 5px; }
.lrow .d { color: var(--ink2); font-size: 13px; }
.lrow .ok { color: var(--accent); font-weight: 700; }
.lrow .no { color: var(--ink3); }
.lrow .na { color: var(--line2); }
.lrow .msp { display: none; }
/* ログイン前は済んだかどうかが分からないので、視聴・確認・試すの列を出さない */
.ltable.guest .lhead, .ltable.guest .lrow { grid-template-columns: 36px minmax(0, 1fr) 56px; }
.ltable.guest .m { display: none; }
.lnote { margin: 8px 0 0; }
/* 畳む枠（ヘルプの問い）。講座詳細ではもう使わない */
.acc { border: 1px solid var(--line); }
.acc summary { list-style: none; display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: #fff; cursor: pointer; font-weight: 700; border-bottom: 1px solid var(--line); }
.acc summary::-webkit-details-marker { display: none; }
.acc[open] summary .caret { transform: rotate(180deg); }
.learnlist { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; max-width: 760px; }
.cpage .files, .cpage > .csec > p { max-width: 760px; }
.cpage .fix { background: none; border-left: 2px solid var(--accent); }
.cpage .fix b { color: var(--ink); }
.files a { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.files a:hover .fname { text-decoration: underline; }
.files .fico i { font-size: 26px; }
.files .fico.pdf { color: #C8372D; } .files .fico.zip { color: var(--ink); }
.files .fname { flex: 1; }
.fix { border-left: 3px solid var(--warn); background: var(--warn-soft); padding: 12px 16px; margin-bottom: 8px; font-size: 14px; }
.fix b { color: var(--warn); }
.fix a { color: var(--accent); text-decoration: underline; }
.maker { display: flex; gap: 16px; align-items: center; margin-top: 8px; }
.maker b { display: block; color: var(--accent); text-decoration: underline; font-size: 17px; }

/* 受講画面 */
body.watching .top { height: 56px; gap: 16px; }
body.watching .top .search, body.watching .top .cat, body.watching .toplinks, body.watching .user { display: none; }
.wbar { display: none; }
body.watching .wbar { display: flex; align-items: center; gap: 16px; flex: 1; min-width: 0; }
.wbar .ct { flex: 1; min-width: 0; display: flex; align-items: center; gap: 6px; white-space: nowrap; overflow: hidden; font-size: 14px; padding-left: 16px; border-left: 1px solid var(--line); }
.wbar .ct a { color: var(--ink2); }
.wbar .ct a:hover { color: var(--accent); text-decoration: underline; }
.wbar .ct > span { overflow: hidden; text-overflow: ellipsis; font-weight: 700; }
.wbar .prog { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink2); white-space: nowrap; width: 140px; }
.watch { display: grid; grid-template-columns: minmax(0, 1fr) 400px; height: calc(100vh - 56px); }
.stage { overflow-y: auto; }
.player { position: relative; background: #000; }
.player video { display: block; width: 100%; max-height: calc(100vh - 160px); aspect-ratio: 16/9; background: #000; }
.locked { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; background: rgba(0,0,0,.86); color: #fff; padding: 24px; }
.btabs { display: flex; gap: 28px; padding: 0 24px; border-bottom: 1px solid var(--line); overflow-x: auto; }
.btabs button { border: none; background: none; padding: 16px 0 14px; font-weight: 700; font-size: 15px; color: var(--ink2); border-bottom: 2px solid transparent; white-space: nowrap; }
.btabs button.on { color: var(--ink); border-bottom-color: var(--ink); }
.below { padding: 24px 24px 64px; max-width: 900px; }
.below h1 { font-size: 24px; margin-bottom: 12px; }
.ometa { font-size: 13px; color: var(--ink2); margin: 0 0 16px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
/* ログインしていない人が無料の回を見ているとき、動画のすぐ下に出す一行（利用規約が適用される旨） */
.watch-terms { margin: 0; padding: 6px 24px; font-size: 12px; color: var(--ink2); border-bottom: 1px solid var(--line); }
/* 動画の下：前の回／講座の目次へ／次の回 */
.lnav { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); border-bottom: 1px solid var(--line); }
.lnav > a, .lnav > span { display: grid; gap: 2px; padding: 12px 24px; min-width: 0; }
.lnav small { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: var(--ink2); }
.lnav b { font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lnav .nx { text-align: right; justify-items: end; }
.lnav .nx b { max-width: 100%; } /* 右寄せでも欄の幅で切って「…」にする */
.lnav .none b { color: var(--ink3); font-weight: 400; }
.lnav a.pv:hover b, .lnav a.nx:hover b { color: var(--accent); }
.lnav .toc { display: flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
.lnav .toc:hover { color: var(--accent); }
.ctrl { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 0 0 16px; }
.ctrl select { height: 36px; padding: 0 8px; }
/* 動画のすぐ下の操作の帯（再生速度・自動で次へ／後で見る・見終えたことにする） */
.wpbar { justify-content: space-between; margin: 0; padding: 10px 16px; border-bottom: 1px solid var(--line); background: var(--soft); }
.wpbar[hidden] { display: none; }
.wpbar .pl, .wpbar .pr { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.wpbar select { height: 32px; }
.keys { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; font-size: 14px; max-width: 420px; }
kbd { display: inline-block; min-width: 26px; padding: 0 7px; border: 1px solid var(--line2); border-bottom-width: 2px; border-radius: 4px; background: #fff; font: 700 12px/22px "Inter", sans-serif; text-align: center; margin-right: 4px; }
.panel { display: flex; flex-direction: column; border-left: 1px solid var(--line); min-height: 0; background: #fff; }
.panel .ph { display: flex; align-items: center; justify-content: space-between; padding: 0 16px; height: 52px; border-bottom: 1px solid var(--line); font-weight: 700; }
.tabs { display: flex; border-bottom: 1px solid var(--line); flex-shrink: 0; }
.tabs button { flex: 1; border: none; background: none; padding: 12px 4px; font-size: 13px; font-weight: 700; color: var(--ink2); border-bottom: 2px solid transparent; }
.tabs button.on { color: var(--ink); border-bottom-color: var(--ink); }
.tabbody { flex: 1; overflow-y: auto; min-height: 0; }
.tools { display: flex; gap: 10px; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: #fff; z-index: 1; }
.tools input[type=search], .tools select { flex: 1; height: 36px; padding: 0 10px; font-size: 13px; border-color: var(--line2); }
.tools label { font-size: 12px; color: var(--ink2); white-space: nowrap; display: flex; gap: 4px; align-items: center; }
.cue { display: flex; gap: 12px; padding: 6px 16px; cursor: pointer; font-size: 14px; line-height: 1.6; }
.cue:hover { background: var(--soft); }
.cue .ts { color: var(--ink2); font-size: 12px; padding-top: 2px; min-width: 36px; }
.cue.now { background: var(--hl); }
.cue.now .ts { color: var(--ink); font-weight: 700; }
.chap { display: flex; gap: 12px; padding: 12px 16px; cursor: pointer; border-bottom: 1px solid var(--soft2); font-size: 14px; }
.chap:hover { background: var(--soft); }
.chap .ts { color: var(--ink2); font-size: 12px; min-width: 36px; padding-top: 2px; }
.chap.now { background: var(--soft2); font-weight: 700; }
.plist a { display: flex; gap: 12px; padding: 10px 16px; font-size: 14px; align-items: flex-start; }
.plist a:hover { background: var(--soft2); }
.plist a.cur { background: var(--soft2); font-weight: 700; }
.plist .chk { width: 18px; height: 18px; border: 1.5px solid var(--ink); border-radius: 2px; flex-shrink: 0; margin-top: 2px; display: grid; place-items: center; font-size: 12px; }
.plist .chk.done { background: var(--ink); color: #fff; }
.plist .sub2 { display: flex; gap: 6px; align-items: center; font-size: 12px; color: var(--ink2); font-weight: 400; margin-top: 2px; }
.pad { padding: 16px; }
.ref { border: 1px solid var(--line); margin: 12px 16px; }
.ref-head { display: flex; justify-content: space-between; gap: 8px; align-items: center; padding: 10px 12px; background: var(--soft); font-size: 13px; }
.ref-head a { color: var(--accent); text-decoration: underline; white-space: nowrap; }
.ref video { width: 100%; display: block; background: #000; }
.ref-text { max-height: 220px; overflow-y: auto; }

/* そのほかの画面 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat { padding: 16px 20px; }
.stat b { display: block; font-size: 22px; font-weight: 800; }
.news a { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.news a:hover span:nth-child(2) { text-decoration: underline; }
.news .date { color: var(--ink2); font-size: 13px; width: 96px; flex-shrink: 0; }
.news .unread { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-top: 8px; flex-shrink: 0; }
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.plan { padding: 24px; display: flex; flex-direction: column; gap: 8px; }
.plan.main { border: 2px solid var(--ink); }
.price { font-size: 28px; font-weight: 800; }
.plan ul { list-style: none; padding: 0; margin: 8px 0 16px; flex: 1; display: grid; gap: 6px; font-size: 14px; align-content: start; }
.plan li { display: flex; gap: 8px; }
.form { display: grid; gap: 12px; padding: 24px; }
.form label { display: grid; gap: 4px; font-size: 13px; font-weight: 700; }
.drop { border: 1px dashed var(--line2); padding: 28px; text-align: center; color: var(--ink2); background: var(--soft); }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
table.t { width: 100%; border-collapse: collapse; font-size: 14px; }
table.t th, table.t td { text-align: left; padding: 10px 16px; border-bottom: 1px solid var(--line); }
table.t th { font-size: 12px; color: var(--ink2); background: var(--soft); }
pre { background: var(--ink); color: #E8EAEB; padding: 16px; overflow-x: auto; font-size: 12.5px; }

/* スマホ */
@media (max-width: 960px) {
  .top { height: 60px; padding: 0 8px; gap: 4px; }
  .only-sp { display: grid; }
  .top .cat, .toplinks > a:not(.bell) { display: none; }
  .search { order: 9; position: absolute; left: 0; right: 0; top: 60px; padding: 8px 12px; background: #fff; border-bottom: 1px solid var(--line); }
  .search .ico { left: 28px; }
  .search input { height: 40px; }
  .body { padding-bottom: 60px; }
  .subnav { margin-top: 56px; } /* 検索欄（バーの下に重ねて出す）の分。分類の帯は検索欄の下に出す */
  .logo { margin-right: auto; }
  .side { display: flex; flex-direction: column; position: fixed; inset: 0 auto 0 0; width: 280px; background: #fff; z-index: 50; padding: 16px; transform: translateX(-100%); transition: transform .2s; }
  body.menu-open .side { transform: none; box-shadow: 0 0 24px rgba(0,0,0,.2); }
  .side .menu { display: grid; gap: 2px; }
  .side .menu a { display: flex; gap: 12px; align-items: center; padding: 10px 8px; font-size: 15px; }
  .side .menu a.on { color: var(--accent); font-weight: 700; }
  .side .menu .label { font-size: 12px; color: var(--ink3); padding: 14px 8px 4px; }
  .side .count-pill { margin-left: auto; font-size: 11px; background: var(--accent); color: #fff; border-radius: 9px; padding: 0 6px; }
  .side .plan-card { margin-top: auto; font-size: 13px; }
  .wrap { padding: 20px 16px 40px; }
  h1 { font-size: 24px; }
  h2 { font-size: 20px; }
  .uname { display: none; }
  .hello h1 { font-size: 23px; }
  .lead-row { grid-template-columns: 1fr; gap: 0; }
  .photo img { aspect-ratio: 16/9; }
  .rcard { grid-template-columns: 120px minmax(0, 1fr); gap: 4px 12px; }
  .rcard .go { grid-column: 2; justify-self: start; flex-wrap: wrap; white-space: normal; } /* 狭い画面でも鍵の理由と「見る」を消さず、文字の下に出す */
  .subnav .in { padding: 0 16px; }
  .grid { grid-template-columns: 1fr; }
  .ccard { grid-template-columns: 38% minmax(0, 1fr); column-gap: 12px; padding: 14px 0; }
  .ccard h3 { font-size: 16px; }
  .ccard .by, .ccard .goal { display: none; }
  .cpage { padding: 0 16px 32px; }
  .chead { grid-template-columns: 1fr; gap: 12px; padding: 16px 0 20px; }
  .chead .cimg { order: -1; width: 200px; }
  .chead h1 { font-size: 26px; }
  .chead .lead { font-size: 15px; }
  .cnext b { font-size: 19px; }
  .lhead, .lrow { grid-template-columns: 28px minmax(0, 1fr) 48px; }
  .lhead .m, .lrow .m { display: none; }
  .lrow .msp { display: block; width: 100%; font-size: 12px; color: var(--ink2); }
  .user .btn { height: 34px; padding: 0 10px; font-size: 13px; }
  .watch { display: flex; flex-direction: column; height: auto; }
  .watch .stage { display: contents; }
  .watch .player { order: 1; position: sticky; top: 56px; z-index: 10; }
  .watch .panel { order: 2; border-left: none; }
  .watch .lnav { order: 2; }
  .watch .watch-terms { order: 2; padding: 6px 12px; }
  .watch .panel { order: 3; }
  .watch .btabs { order: 4; }
  .watch .below { order: 5; padding: 16px; }
  .tabbody { max-height: 55vh; }
  .player video { max-height: none; }
  .wbar .prog { display: none; }
  .wbar .ct { padding-left: 8px; font-size: 13px; }
  .wbar .ct > a, .wbar .ct > i { display: none; }
  .lnav > a, .lnav > span { padding: 10px 12px; }
  .lnav b { font-size: 13px; }
  .lnav .toc { font-size: 13px; padding: 0 10px; gap: 4px; }
  .lnav .toc .l { display: none; }
  body.watching .top .logo { font-size: 0; gap: 0; margin-right: 0; }
  body.watching .top .logo .mark { font-size: 13px; }
  .wbar .btn { padding: 0 8px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .two { grid-template-columns: 1fr; }
  .tabbar { display: flex; position: fixed; inset: auto 0 0 0; height: 60px; background: #fff; border-top: 1px solid var(--line); z-index: 40; }
  .tabbar a { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; font-size: 10.5px; color: var(--ink2); }
  .tabbar a.on { color: var(--ink); font-weight: 700; }
  .foot .in { gap: 24px; }
}
/* 狭いスマホでログイン前：「ログイン」「無料で登録」を両方出すため、上のバーのロゴは印だけにする（名前は下の帯にある） */
@media (max-width: 480px) {
  .top:has(#user > .btn) .logo { font-size: 0; gap: 0; }
}

/* ---- 管理画面 ---- */
.adm-link { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--ink) !important; font-weight: 700; }
body.admin .top, body.admin .subnav, body.admin .foot, body.admin .tabbar { display: none; }
body.admin { background: #F5F6F8; }
.adm { display: grid; grid-template-columns: 232px minmax(0, 1fr); min-height: 100vh; }
.adm-side { background: var(--dark); color: #E4E6EC; display: flex; flex-direction: column; padding: 16px 12px; position: sticky; top: 0; height: 100vh; }
.adm-logo { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; padding: 6px 8px 20px; }
.adm-logo small { display: block; font-size: 11px; font-weight: 500; color: #9DA3B5; }
.adm-logo .mark { width: 26px; height: 26px; background: var(--accent); display: grid; place-items: center; border-radius: 4px; font-size: 14px; }
.adm-side nav { display: grid; gap: 2px; }
.adm-side nav a { display: flex; align-items: center; gap: 12px; padding: 9px 10px; border-radius: 6px; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.adm-side nav a:hover { background: rgba(255,255,255,.07); color: #fff; }
.adm-side nav a.on { background: var(--dark2); color: #fff; font-weight: 700; box-shadow: inset 4px 0 0 var(--accent); } /* 選択中：左の朱の線（box-shadow なので幅がずれない） */
.adm-side nav a:focus-visible { outline: 2px solid #fff; outline-offset: -2px; }
.okdot { margin-left: auto; width: 8px; height: 8px; border-radius: 50%; background: #3CCB7F; }
.adm-back { margin-top: auto; display: flex; gap: 10px; align-items: center; font-size: 13px; padding: 10px; color: #C8CBD6; }
.adm-back:hover { color: #fff; }
.adm-main { padding: 24px 32px 48px; min-width: 0; }
.adm-top { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.adm-top h1 { font-size: 24px; margin: 0; display: flex; align-items: center; gap: 8px; }
.adm-act { margin-left: auto; display: flex; gap: 8px; }
.crumb2 { color: var(--ink2); font-weight: 500; }
.adm-note { font-size: 12px; color: var(--ink3); margin-top: 24px; }
.kpis { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; display: grid; gap: 2px; }
.kpi .lbl { font-size: 12px; color: var(--ink2); }
.kpi b { font-size: 26px; font-weight: 800; line-height: 1.2; }
.kpi .sub2 { font-size: 12px; color: var(--ink2); }
.kpi em { font-style: normal; font-weight: 700; margin-right: 4px; }
.kpi em.up { color: var(--ok); } .kpi em.down { color: var(--live); }
.adm-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 16px; margin-bottom: 16px; }
.panel2 { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 16px 20px; margin-bottom: 16px; min-width: 0; }
.adm-grid .panel2 { margin-bottom: 0; }
.panel2.flush { padding: 0; overflow: hidden; }
.ph2 { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.ph2.pad2 { padding: 14px 20px; margin: 0; border-bottom: 1px solid var(--line); }
.ph2 h2 { font-size: 16px; margin: 0; }
.ph2 > :last-child:not(h2) { margin-left: auto; }
.h2s { font-size: 15px; margin: 18px 0 8px; }
.chart { display: flex; align-items: flex-end; gap: 3px; height: 180px; padding-top: 8px; border-bottom: 1px solid var(--line); }
.chart span { flex: 1; background: #E3B9AE; border-radius: 2px 2px 0 0; min-height: 2px; }
.chart span:hover { background: var(--accent); }
.chart span:last-child { background: var(--accent); }
.axis { display: flex; justify-content: space-between; font-size: 11px; color: var(--ink3); margin-top: 4px; }
.status { list-style: none; margin: 0; padding: 0; }
.status li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--soft2); font-size: 14px; }
.status li span { flex: 1; }
.i.ok { color: var(--ok); } .i.warn { color: var(--warn); }
.tw { overflow-x: auto; }
.nw { white-space: nowrap; }
.mw { min-width: 14em; } /* 表の題名の列（狭い画面では表ごと横にずらして見る） */
.tw .tag { white-space: nowrap; }
.adm table.t { font-size: 13.5px; }
.adm table.t th { background: #FAFBFC; white-space: nowrap; }
.adm table.t td { vertical-align: middle; }
.adm table.t .r { text-align: right; }
/* 講座の「個別に見られる人」：狭い枠でも名前を1文字ずつ折らない。長いメールはその列の中で折り、外すボタンは枠の中に収める */
.adm table.grants th, .adm table.grants td { padding: 8px 10px; }
.adm table.grants .gmail { overflow-wrap: anywhere; word-break: break-all; }
.adm table.grants td:last-child { width: 1%; white-space: nowrap; text-align: right; }
.adm tr.click { cursor: pointer; }
.adm tr.click:hover td { background: #F7F8FC; }
.adm tr.sel td { background: var(--accent-soft); }
.rate { min-width: 150px; white-space: nowrap; }
.rate .mbar { display: inline-block; width: calc(100% - 52px); min-width: 60px; vertical-align: middle; margin-right: 8px; }
.rate .num { display: inline-block; width: 40px; vertical-align: middle; }
.mbar { flex: 1; height: 6px; background: var(--soft2); border-radius: 3px; overflow: hidden; display: block; min-width: 60px; }
.mbar i { display: block; height: 100%; background: var(--accent); border-radius: 3px; }
.link2 { font-weight: 700; }
.link2:hover { color: var(--accent); text-decoration: underline; }
.drops { list-style: none; margin: 0; padding: 0; }
.drops li { padding: 10px 0; border-bottom: 1px solid var(--soft2); display: grid; gap: 2px; }
.drops b { font-size: 13px; display: block; } .drops span { font-size: 13px; color: var(--ink2); }
.drops em { font-style: normal; font-size: 12px; color: var(--live); font-weight: 700; }
.drops a:hover b { color: var(--accent); }
.who { display: flex; align-items: center; gap: 10px; }
.who b { display: block; font-size: 13.5px; }
.who .av { width: 32px; height: 32px; border-radius: 50%; background: #E3E6EF; color: var(--ink); display: grid; place-items: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }
.who.big .av { width: 56px; height: 56px; font-size: 18px; }
.who.big b { font-size: 18px; }
.st { font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 10px; background: var(--soft2); color: var(--ink2); white-space: nowrap; }
.st.on { background: var(--badge-g); color: var(--badge-g-ink); }
.st.off { background: var(--warn-soft); color: var(--warn); }
.tag.warn { background: var(--warn-soft); color: var(--warn); }
.filters2 { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; flex-wrap: wrap; }
.filters2 select, .filters2 input { height: 38px; padding: 0 10px; border-color: var(--line2); background: #fff; }
.srch { position: relative; display: flex; align-items: center; }
.srch i { position: absolute; left: 10px; color: var(--ink2); }
.srch input { padding-left: 32px; width: 260px; }
.dl { display: grid; grid-template-columns: 140px 1fr; gap: 8px 12px; font-size: 14px; margin: 16px 0; }
.dl dt { color: var(--ink2); } .dl dd { margin: 0; }
.btns2 { display: flex; gap: 8px; flex-wrap: wrap; }
.btn.danger { color: var(--live); border-color: var(--live); }
.alert { display: flex; gap: 10px; background: var(--warn-soft); border: 1px solid #F0D9B5; border-radius: 6px; padding: 12px; }
.alert b { display: block; font-size: 14px; }
.log { list-style: none; margin: 0; padding: 0; font-size: 13.5px; }
.log li { padding: 6px 0; border-bottom: 1px solid var(--soft2); display: flex; gap: 12px; }
.log li span { color: var(--ink3); width: 56px; }
.mc { padding: 12px 0; border-bottom: 1px solid var(--soft2); }
.mch { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; font-size: 14px; }
.mch b { min-width: 160px; }
.mch .mbar { max-width: 240px; }
.cells { display: flex; flex-wrap: wrap; gap: 4px; }
.cell { width: 30px; height: 26px; border-radius: 4px; background: var(--soft2); color: var(--ink3); display: inline-grid; place-items: center; font-size: 11px; font-weight: 700; vertical-align: middle; }
.cell.done { background: var(--accent); color: #fff; }
.cell.mid { background: #CFC6F3; color: var(--ink); }
.legend { font-size: 12px; color: var(--ink2); display: flex; align-items: center; gap: 6px; margin: 12px 0 0; }
.legend .cell { width: 14px; height: 14px; margin-left: 8px; }
.curve { display: flex; align-items: flex-end; gap: 6px; height: 200px; border-bottom: 1px solid var(--line); margin-bottom: 30px; }
.cv { flex: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; position: relative; }
.cv span { display: block; background: #E3B9AE; border-radius: 3px 3px 0 0; }
.cv.hot span { background: var(--live); }
.cv em { position: absolute; bottom: -22px; left: 0; font-style: normal; font-size: 11px; color: var(--ink3); }
.use { display: flex; align-items: center; gap: 10px; font-size: 13px; margin-bottom: 8px; }
.use > span:first-child { width: 150px; }
.cthumb { position: relative; width: 64px; height: 36px; overflow: hidden; border-radius: 4px; flex-shrink: 0; }
.cthumb img { width: 100%; height: 100%; object-fit: cover; }
.form2 { display: grid; gap: 12px; align-content: start; }
.form2 label { display: grid; gap: 4px; font-size: 13px; font-weight: 700; }
.form2 input, .form2 select, .form2 textarea { border-color: var(--line2); }
.form2 label > select { width: 100%; max-width: 100%; } /* 長い選択肢でも欄の幅に収める */
.row2 { display: flex; gap: 8px; flex-wrap: wrap; }
.row2 input { flex: 1; min-width: 0; }
.row2 input[name=at] { flex: 0 0 110px; }
.row2 > label { flex: 1 1 180px; min-width: 0; }
.row2 > label input { width: 100%; }
.drop2 { border: 1px dashed var(--line2); border-radius: 8px; padding: 18px; display: grid; justify-items: center; gap: 4px; text-align: center; background: #FAFBFC; }
.drop2 i { font-size: 26px; color: var(--ink2); }
.drop2 span { font-size: 12px; color: var(--ink2); }
@media (max-width: 1200px) { .kpis { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 960px) {
  .adm { grid-template-columns: 1fr; }
  .adm-side { position: static; height: auto; padding: 10px; }
  .adm-side nav { display: flex; overflow-x: auto; gap: 4px; }
  .adm-side nav a { white-space: nowrap; }
  .adm-back { margin-top: 6px; }
  .adm-main { padding: 16px; }
  .adm-grid { grid-template-columns: minmax(0, 1fr); }
  .kpis { grid-template-columns: 1fr 1fr; }
  .adm-top { flex-wrap: wrap; }
  .adm-act { margin-left: 0; }
  .srch input { width: 100%; }
  .filters2 .srch { flex: 1 1 100%; min-width: 0; }
  .dl { grid-template-columns: 110px 1fr; }
  .mch { flex-wrap: wrap; }
  .adm-link { display: none !important; }
}
@media (max-width: 960px) {
  .adm { grid-template-columns: minmax(0, 1fr); }
  .adm-side, .adm-main { min-width: 0; }
  .adm-act { flex-wrap: wrap; }
}

/* ---- ログイン ---- */
body.onlogin .subnav, body.onlogin .toplinks, body.onlogin .user, body.onlogin .top .search, body.onlogin .top .cat, body.onlogin .foot, body.onlogin .tabbar { display: none; }
.login { display: grid; grid-template-columns: 1.1fr 1fr; min-height: calc(100vh - 72px); }
.login-art { position: relative; overflow: hidden; }
.login-art img { width: 100%; height: 100%; object-fit: cover; display: block; }
.login-art .cap { position: absolute; left: 40px; bottom: 40px; background: #fff; padding: 18px 22px; display: grid; gap: 4px; max-width: 380px; }
.login-art .cap b { font-size: 24px; font-weight: 800; }
.login-box { align-self: center; justify-self: center; width: min(400px, 100% - 32px); display: grid; gap: 14px; padding: 32px 0; }
.login-box h1 { font-size: 28px; margin: 8px 0 0; }
.login-box label { display: grid; gap: 4px; font-size: 13px; }
.login-box input[type=text], .login-box input[type=password], .login-box input[type=email], .login-box select { height: 48px; }
.testnote { display: flex; gap: 8px; align-items: center; background: var(--badge-y); color: var(--badge-y-ink); padding: 10px 12px; font-size: 13px; font-weight: 700; }
.seg2 { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.seg2 label { display: block; }
.seg2 input { display: none; }
.seg2 span { display: block; text-align: center; padding: 10px; font-weight: 700; font-size: 14px; cursor: pointer; }
.seg2 input:checked + span { background: var(--ink); color: #fff; }
.or { display: flex; align-items: center; gap: 10px; color: var(--ink3); font-size: 12px; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--line); }
@media (max-width: 960px) { .login { grid-template-columns: 1fr; } .login-art { height: 180px; } .login-art .cap { display: none; } }
.adm-login { min-height: 100vh; display: grid; place-items: center; background: var(--dark); padding: 24px 16px; }
.adm-login .login-box { width: min(440px, 100%); background: #fff; padding: 32px 28px; }

/* ---- 管理画面の部品 ---- */
.adm-side .grp { font-size: 11px; font-weight: 700; color: #B4B9CC; padding: 14px 10px 4px; letter-spacing: .12em; }
/* 縦にだけ流す。スクロールバーは濃紺に合わせた細いもの */
.adm-side nav { overflow-y: auto; overflow-x: hidden; scrollbar-width: thin; scrollbar-color: #4A4E66 transparent; }
.adm-side nav::-webkit-scrollbar { width: 6px; height: 6px; }
.adm-side nav::-webkit-scrollbar-track { background: transparent; }
.adm-side nav::-webkit-scrollbar-thumb { background: #4A4E66; border-radius: 3px; }
.adm-side nav::-webkit-scrollbar-thumb:hover { background: #62677F; }
.adm-side nav::-webkit-scrollbar-corner { background: transparent; }
.adm-me { display: flex; gap: 8px; align-items: center; font-size: 12px; color: #C8CBD6; padding: 10px; margin-top: auto; border-top: 1px solid var(--dark2); overflow: hidden; }
.adm-me span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.adm-side .adm-me + .adm-back { margin-top: 0; }
.kpis.k4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } .kpis.k5 { grid-template-columns: repeat(5, minmax(0, 1fr)); margin: 0; }
.kpi b small { font-size: 14px; color: var(--ink2); font-weight: 500; }
.st.mid { background: var(--accent-soft); color: var(--accent); }
.vis { font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 10px; white-space: nowrap; }
.vis.v0 { background: #DDF3E6; color: #0F5A33; } .vis.v1 { background: var(--accent-soft); color: var(--accent); } .vis.v2 { background: var(--warn-soft); color: var(--warn); } .vis.v3 { background: var(--soft2); color: var(--ink2); }
.lb-bar { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; margin-bottom: 10px; }
.lb-bar select { height: 34px; padding: 0 8px; border-color: var(--line2); }
.lb-bar .srch input { height: 36px; width: 220px; border-color: var(--line2); }
.seg { display: inline-flex; border: 1px solid var(--line2); border-radius: 6px; overflow: hidden; }
.seg button { border: none; background: #fff; padding: 6px 12px; font-size: 13px; border-right: 1px solid var(--line2); }
.seg button:last-child { border-right: none; }
.seg button.on { background: var(--ink); color: #fff; font-weight: 700; }
.seg.big { display: flex; gap: 18px; border: none; flex-wrap: wrap; }
.seg.big label { display: flex; gap: 6px; align-items: center; font-size: 14px; }
.lb-pager { display: flex; gap: 10px; align-items: center; justify-content: flex-end; margin-top: 10px; }
.lb tr.exp td { background: #FAFBFC; padding: 12px 16px 14px; }
.lb tr.click:hover td { background: #F7F8FC; }
.picks { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 4px 16px; max-height: 260px; overflow-y: auto; border: 1px solid var(--line); padding: 10px 12px; border-radius: 6px; margin-bottom: 10px; }
.pick { display: flex; gap: 8px; align-items: center; font-size: 14px; padding: 3px 0; }
#apick.dim { opacity: .4; pointer-events: none; }
.radio { display: grid; grid-template-columns: auto auto 1fr; gap: 6px 10px; align-items: center; font-size: 14px; font-weight: 400 !important; }
.radio .sub { grid-column: 2 / -1; }
.form2.inline { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.form2.inline input, .form2.inline select { height: 36px; padding: 0 10px; }
.form2 .chk { display: flex; gap: 8px; align-items: center; font-weight: 400; }
.form2 .pick { display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; font-weight: 400; font-size: 14px; } /* フォームの中の選ぶ欄も1行に */
.form2 .pick input { width: auto; flex: none; }
.drop2 input[type=file] { font-size: 12px; }
.form2.inline input[type=file] { max-width: 100%; min-width: 0; }
.sw { position: relative; display: inline-block; width: 40px; height: 22px; }
.sw input { opacity: 0; width: 0; height: 0; }
.sw span { position: absolute; inset: 0; background: var(--line2); border-radius: 11px; cursor: pointer; transition: background .15s; }
.sw span::after { content: ""; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform .15s; }
.sw input:checked + span { background: var(--accent); }
.sw input:checked + span::after { transform: translateX(18px); }
.toast { position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 12px 20px; border-radius: 6px; font-size: 14px; z-index: 99; box-shadow: 0 4px 16px rgba(0,0,0,.2); }
.toast.bad { background: var(--live); }
code { background: var(--soft2); padding: 1px 6px; border-radius: 4px; font-size: 12.5px; }
button.link { border: none; background: none; padding: 0; cursor: pointer; }
@media (max-width: 960px) {
  .kpis.k4, .kpis.k5 { grid-template-columns: 1fr 1fr; } .lb-bar .srch input { width: 100%; } .adm-side .grp, .adm-me { display: none; }
  /* 横並び：横にだけ流す（細いスクロールバー）。項目は縮めず、選択中の線は下に */
  .adm-side nav { overflow-x: auto; overflow-y: hidden; padding-bottom: 4px; }
  .adm-side nav::-webkit-scrollbar { height: 4px; }
  .adm-side nav a { flex-shrink: 0; overflow: visible; }
  .adm-side nav a.on { box-shadow: inset 0 -3px 0 var(--accent); }
}

/* ---- 受講者側の足した部品（既存の線・札・朱色に合わせる） ---- */
/* 障害・メンテナンスの告知帯（全画面の上、分類の帯の上） */
.alertbar:empty { display: none; }
.alertbar { background: var(--accent-soft); border-bottom: 1px solid var(--line); }
.alertbar .in { max-width: 1340px; margin: 0 auto; padding: 8px 24px; display: flex; gap: 10px; align-items: center; font-size: 13px; }
.alertbar .in > i { color: var(--accent); }
.alertbar a { flex: 1; min-width: 0; text-decoration: underline; text-underline-offset: 3px; }
.alertbar button { border: none; background: none; padding: 4px; display: grid; color: var(--ink2); }
body.admin .alertbar { display: none; }
/* 検証環境の帯（app.js の applyStaging。/api/site の is_staging のとき）。管理画面でも出す */
.stagebar { background: #F2C200; color: #1A1A1A; text-align: center; font-size: 13px; font-weight: 700; padding: 6px 16px; letter-spacing: .04em; border-bottom: 2px solid #1A1A1A; }
/* 鍵の欄（見る権利の無い回の字幕・資料・講座） */
.lockpanel { display: flex; gap: 12px; align-items: flex-start; padding: 16px 18px; }
.lockpanel > i { color: var(--ink2); margin-top: 2px; }
.lockpanel p { margin: 4px 0 12px; }
.locked .btn.line { color: #fff; border-color: #fff; }
.locked .btn.line:hover { background: rgba(255,255,255,.12); }
.files a.off { cursor: default; }
/* ログイン・登録の画面の小さな足元と、同意のチェック */
.auth-foot { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 8px 0 0; padding-top: 12px; border-top: 1px solid var(--line); }
.auth-foot a { text-decoration: underline; text-underline-offset: 3px; }
.agree { display: flex !important; gap: 8px; align-items: flex-start; font-size: 14px; }
.agree input { margin-top: 4px; }
.agree a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
/* 料金：お申し込み内容の確認 */
.confirm { margin-top: 24px; padding: 8px 24px 24px; border-color: var(--ink); }
.confirm h2 { margin-top: 16px; }
.confirm .dl { grid-template-columns: 180px 1fr; }
.confirm .dl dt, .confirm .dl dd { padding: 8px 0; border-top: 1px solid var(--soft2); }
/* 規約類：目次 */
.ltoc { padding: 14px 20px; margin-bottom: 24px; font-size: 14px; }
.ltoc ol { margin: 6px 0 0; padding-left: 1.4em; }
.ltoc a { text-decoration: underline; text-underline-offset: 3px; }
.legal #ldoc h2 { scroll-margin-top: 90px; }
@media (max-width: 960px) {
  .alertbar { margin-top: 56px; } /* スマホは検索欄がバーの下に重なるので、その分下げる */
  .alertbar:not(:empty) + .subnav { margin-top: 0; }
  body.watching .alertbar, body.onlogin .alertbar { margin-top: 0; }
  .alertbar .in { padding: 8px 16px; }
  .confirm { padding: 4px 16px 20px; }
  .confirm .dl { grid-template-columns: 1fr; gap: 0; }
  .confirm .dl dd { border-top: none; padding-top: 0; }
}

/* ---------- 確認テスト（受講画面の動画の下） ---------- */
.quizcard { margin: 16px 24px 4px; max-width: 852px; border: 1px solid var(--line); border-radius: 8px; padding: 16px 20px; background: #fff; }
.quizcard[hidden] { display: none; }
.qhead { display: flex; align-items: flex-start; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.qhead > i.i { font-size: 26px; color: var(--accent); margin-top: 2px; }
.qhead > div { flex: 1 1 240px; min-width: 0; }
.qhead h2 { font-size: 19px; margin: 0; }
.qhead p { margin: 2px 0 0; }
.qbest { font-size: 13px; background: var(--soft2); border-radius: 14px; padding: 4px 12px; display: inline-flex; align-items: center; gap: 4px; white-space: nowrap; }
.qbest.ok { background: var(--badge-g); color: var(--badge-g-ink); }
.qlock { display: flex; align-items: center; gap: 10px; background: var(--soft); border: 1px dashed var(--line2); border-radius: 6px; padding: 12px 14px; margin-bottom: 10px; color: var(--ink2); }
.qform { display: grid; gap: 14px; }
.qq { border: 1px solid var(--line); border-left: 4px solid var(--line2); border-radius: 6px; padding: 12px 14px; margin: 0; min-width: 0; }
.qq legend { padding: 0 6px; display: flex; gap: 8px; align-items: center; }
.qn { font-weight: 700; display: inline-flex; align-items: center; gap: 6px; }
/* 「第n問」は色付きの丸い札（白文字。色は形式に合わせる） */
.qq .qn { background: var(--ink); color: #fff; border-radius: 999px; padding: 1px 12px; font-size: 14px; line-height: 1.6; }
.qq:has(.qk-single) .qn { background: var(--accent); }
.qq:has(.qk-multi) .qn { background: var(--qk-multi-ink); }
.qq:has(.qk-tf) .qn { background: var(--qk-tf-ink); }
.qq:has(.qk-blank) .qn { background: var(--qk-blank-ink); }
.qk { font-size: 12px; color: var(--ink2); background: var(--soft2); border-radius: 10px; padding: 1px 8px; font-weight: 400; }
/* 形式の札：.qk などに追加で付く（受講画面・管理画面の編集と「試す」で共通） */
.qk-single, .qk.qk-single { background: var(--qk-single-bg); color: var(--qk-single-ink); font-weight: 700; }
.qk-multi, .qk.qk-multi { background: var(--qk-multi-bg); color: var(--qk-multi-ink); font-weight: 700; }
.qk-tf, .qk.qk-tf { background: var(--qk-tf-bg); color: var(--qk-tf-ink); font-weight: 700; }
.qk-blank, .qk.qk-blank { background: var(--qk-blank-bg); color: var(--qk-blank-ink); font-weight: 700; }
/* 問題ごとの左の線を形式の色に */
.qe:has(.qk-single, .qk-multi, .qk-tf, .qk-blank) { border-left-width: 4px; }
.qq:has(.qk-single), .qe:has(.qk-single) { border-left-color: var(--qk-single-line); }
.qq:has(.qk-multi), .qe:has(.qk-multi) { border-left-color: var(--qk-multi-line); }
.qq:has(.qk-tf), .qe:has(.qk-tf) { border-left-color: var(--qk-tf-line); }
.qq:has(.qk-blank), .qe:has(.qk-blank) { border-left-color: var(--qk-blank-line); }
.qb { margin: 4px 0 10px; font-weight: 500; overflow-wrap: anywhere; }
.qch { display: grid; gap: 6px; }
.qch.tf { grid-template-columns: repeat(2, minmax(0, 120px)); }
.qc { display: flex; align-items: flex-start; gap: 10px; border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; cursor: pointer; min-width: 0; }
.qc:hover { background: #FBF5F3; border-color: #E3B9AE; }
.qc:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.qc:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }
.qc input { accent-color: var(--accent); }
.qc input:focus-visible { outline: none; }
.qc input { margin: 4px 0 0; flex-shrink: 0; }
.qc span { overflow-wrap: anywhere; }
.qch.tf .qc { justify-content: center; font-size: 20px; font-weight: 700; }
/* 穴埋めの空欄：問題文の「［　］」。選んだ語・採点のあとは正解の語が入る */
.qblank { display: inline-block; min-width: 5em; min-height: 1.6em; padding: 0 8px; margin: 0 4px; border: 1px solid var(--line2); border-radius: 4px; background: var(--soft); text-align: center; vertical-align: middle; line-height: 1.5; }
.qblank.on { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-dark); font-weight: 700; }
.qblank.ok { border-color: transparent; background: var(--badge-g); color: var(--badge-g-ink); }
.qscore { display: flex; align-items: baseline; gap: 12px 16px; flex-wrap: wrap; border-radius: 8px; padding: 14px 18px; margin-bottom: 14px; background: var(--soft); }
.qscore b { font-size: 40px; line-height: 1; }
.qscore b small { font-size: 16px; margin-left: 2px; }
.qscore .verdict { font-size: 20px; font-weight: 700; display: inline-flex; align-items: center; gap: 6px; }
.qscore.ok { background: var(--badge-g); color: var(--badge-g-ink); border-left: 6px solid var(--ok); }
.qscore.ng { background: var(--warn-soft); color: #8A4F08; border-left: 6px solid var(--warn); }
.qres { list-style: none; padding: 0; margin: 0 0 14px; display: grid; gap: 10px; }
.qres > li { border: 1px solid var(--line); border-left: 6px solid var(--ok); border-radius: 6px; padding: 10px 14px; }
.qres > li.ok .qrh { color: var(--badge-g-ink); }
.qres > li.ng { border-left-color: var(--warn); }
.qrh { display: flex; align-items: center; gap: 6px; font-weight: 700; font-size: 14px; }
.qres > li.ng .qrh { color: #8A4F08; }
.qopts { list-style: none; padding: 0; margin: 0; display: grid; gap: 4px; }
.qopts li { display: flex; align-items: flex-start; gap: 8px; padding: 4px 8px; border-radius: 4px; font-size: 14px; }
.qopts li.good { background: var(--badge-g); color: var(--badge-g-ink); font-weight: 700; box-shadow: inset 3px 0 0 var(--ok); }
.qopts li.mine:not(.good) { background: #FBE6CC; color: #7A4506; font-weight: 700; box-shadow: inset 3px 0 0 var(--warn); }
.qopts li em { font-style: normal; font-size: 12px; margin-left: auto; white-space: nowrap; }
.qopts li span { overflow-wrap: anywhere; }
.qex { margin: 8px 0 0; font-size: 14px; background: var(--soft); padding: 8px 10px; border-radius: 4px; }
.qex b { margin-right: 8px; }
.qtitle { display: flex; gap: 10px; align-items: center; background: var(--badge-y); color: var(--badge-y-ink); border-radius: 6px; padding: 12px 14px; margin-bottom: 12px; }
.qtitle > i.i { font-size: 28px; color: #9A6B00; }
.qtitle b { display: block; }
.qpass { display: inline-flex; align-items: center; gap: 2px; font-size: 12px; font-weight: 700; color: var(--badge-g-ink); background: var(--badge-g); border-radius: 10px; padding: 0 8px; margin-left: 8px; white-space: nowrap; }
.plist .qpass { margin-left: 4px; }

/* ---------- 称号（学習中の講座） ---------- */
.ladder { display: flex; align-items: flex-end; gap: 10px; margin: 22px 0 16px; }
.ladder .step { position: relative; flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 6px; align-items: flex-start; border: 1px solid var(--line); border-radius: 8px 8px 0 0; border-bottom: 4px solid var(--line2);
  padding: 14px 14px 12px; background: #fff; min-height: calc(150px + var(--h) * 34px); }
.ladder .step.s-earned, .ladder .step.s-earned_outdated { border-bottom-color: var(--ok); background: #F6FBF8; }
.ladder .step.s-unreachable { background: var(--soft); color: var(--ink2); }
.ladder .step.cur { border-color: var(--accent); border-bottom-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.ladder .lv { font-size: 12px; color: var(--ink2); }
.ladder .tname { font: 700 19px/1.3 "Shippori Mincho B1", "Noto Serif JP", serif; overflow-wrap: anywhere; }
.ladder .here { position: absolute; top: -12px; right: 10px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 700; border-radius: 10px; padding: 1px 10px; }
.ladder .tprog { display: flex; align-items: center; gap: 8px; width: 100%; }
.ladder .tprog .bar { flex: 1; }
.ladder .btn.sm { height: 32px; font-size: 13px; padding: 0 10px; }
.tnext { padding: 14px 18px; margin: 10px 0; }
.tmiss { margin: 6px 0 0; padding-left: 0; list-style: none; display: grid; gap: 2px; font-size: 14px; }
.tmiss a { display: inline-flex; align-items: center; gap: 6px; }
#titlebox .alert { margin: 10px 0; }
.treach { margin: 0; font-size: 13px; display: flex; align-items: center; gap: 6px; color: var(--ink2); }
.treach b { color: var(--ink); }
@media (max-width: 960px) {
  .ladder { flex-direction: column-reverse; align-items: stretch; }
  .ladder .step { min-height: 0; border-radius: 8px; border-bottom-width: 1px; border-left: 4px solid var(--line2); }
  .ladder .step.s-earned, .ladder .step.s-earned_outdated { border-left-color: var(--ok); }
  .ladder .step.cur { border-left-color: var(--accent); }
  .watch .quizcard { order: 2; padding: 14px; margin: 12px 16px 4px; }
  .qch.tf { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 管理：確認テストの編集・称号・法人の帯 ---------- */
.qe-top { margin-bottom: 10px; }
.qe-list { display: grid; gap: 12px; margin-bottom: 12px; }
#qed, .qe-list { min-width: 0; }
.qe { border: 1px solid var(--line); border-radius: 6px; padding: 12px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; background: #fff; min-width: 0; }
.qe-h { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.qe-h .sp { flex: 1; }
.qe-h select { padding: 6px 8px; max-width: 100%; min-width: 0; }
.qe textarea { width: 100%; }
.qe-ch { display: grid; gap: 6px; }
.qe-c { display: flex; align-items: center; gap: 8px; }
.qe-c input[data-c] { flex: 1; min-width: 0; padding: 7px 10px; }
.qe-c .okt { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; white-space: nowrap; font-weight: 400; }
.qe-c .tfv { font-size: 18px; font-weight: 700; }
.qe-msg { margin: 0; font-size: 13px; color: var(--warn); }
.qe-msg:empty { display: none; }
.warn-t { color: var(--warn); font-weight: 700; }
.qprev { border: 1px dashed var(--line2); border-radius: 6px; padding: 12px; display: grid; gap: 10px; margin-bottom: 8px; }
.qprev .qq { border: none; padding: 0; }
.tagpick { margin: 0 0 6px 26px; }
.tagpick.dim { opacity: .4; pointer-events: none; }
.tchips { display: flex; flex-wrap: wrap; gap: 8px; }
.tchip { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 6px; padding: 6px 10px; }
.band { display: flex; height: 34px; border-radius: 6px; overflow: hidden; background: var(--soft2); gap: 2px; }
.band span { display: flex; align-items: center; justify-content: center; min-width: 22px; color: #fff; font-size: 13px; }
.band-legend { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 10px; font-size: 14px; }
.band-legend span { display: inline-flex; align-items: center; gap: 6px; }
.band-legend i { width: 12px; height: 12px; border-radius: 3px; display: inline-block; }
.band .b0, .band-legend .b0 { background: #B6BDC2; }
.band .b1, .band-legend .b1 { background: #7FB89A; }
.band .b2, .band-legend .b2 { background: #3E9A6B; }
.band .b3, .band-legend .b3 { background: #1E7A50; }
.band .b4, .band-legend .b4 { background: #0F4D2C; }
.band .b0 { color: var(--ink); }
/* ---------- 仕事で試す（運営の課題文を読むだけ）・完了の条件・見終えたときの行き先・鍵の理由（要件13章 第1.4版） ---------- */
.pprompt { margin: 0 0 14px; padding: 10px 14px; border-left: 3px solid var(--line2); background: var(--soft); white-space: pre-wrap; overflow-wrap: anywhere; }
.wcond { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 4px; }
.wcond[hidden] { display: none; }
.wcond > span { display: inline-flex; align-items: center; gap: 2px; }
.wcond > span.ok { color: var(--ink); }
.wcond .sep { margin: 0 6px; color: var(--ink3); }
.endcard { overflow-y: auto; }
/* スマホ：見終えたときの案内は動画の下に、鍵の画面は画像の下に出す（動画の枠に詰め込むと切れるため） */
@media (max-width: 960px) {
  .watch .endcard.out { position: static; order: 1; background: var(--dark); padding: 20px 16px; }
  .watch .player.lockedp { position: static; }
  .watch .player.lockedp .locked { position: static; background: var(--dark); padding: 20px 16px; }
  .locked h2 { font-size: 19px; }
}
/* 訂正の未読（受講画面の「訂正」タブ） */
.udot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-left: 6px; vertical-align: middle; }
/* お知らせの本文 */
.nbody { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.8; padding: 16px 0 8px; border-top: 1px solid var(--line); }
/* 学習中の講座：修了証 */
.certs .crow { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.certs .fname { display: grid; gap: 2px; min-width: 0; }
.certs .fico i { color: var(--accent); }
.endcard .btns2 { justify-content: center; }
.endcard .endctl { margin-top: 14px; }
.lockwhy { display: inline-flex; align-items: center; gap: 3px; font-size: 12px; font-weight: 400; color: var(--ink2); white-space: normal; }
.lrow .t .lockwhy { margin-left: 8px; }
.rcard .go .lockwhy { margin-right: 6px; }

/* PDF の回（db/014）：動画の枠の代わりに PDF を iframe で出す。スマホでは動画のように上に貼り付けない */
.player.docp { background: var(--soft2, #F1F3F4); }
.docview iframe { display: block; width: 100%; height: calc(100vh - 200px); min-height: 480px; border: 0; background: #fff; }
.docview.docshot { aspect-ratio: 16/9; display: grid; place-items: center; font-size: 64px; color: #9DA3A7; }
.docbtns { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 10px 0 0; }
.tag.doc { color: #B42318; border-color: #F4C7C3; }
.vis.v4 { background: #EDE7F6; color: #4527A0; }
@media (max-width: 960px) {
  .watch .player.docp { position: static; }
  .docview iframe { height: 70vh; min-height: 360px; }
}
/* 幅の狭い画面（スマートフォン）：iOS の Safari は iframe の PDF を1ページしか出さないことがあるので、iframe の代わりに「PDFを開く」を大きく出す */
.docview .docmobile { display: none; }
@media (max-width: 640px) {
  .docview iframe { display: none; }
  .docview .docmobile { display: grid; justify-items: center; gap: 12px; padding: 36px 16px; text-align: center; background: #fff; }
  .docview .docmobile .btn { font-size: 17px; padding: 14px 28px; }
}
/* あとで見る（回の一覧の行の中）とメモ（受講画面の右の欄） */
button.wl { border: none; background: none; padding: 0; display: inline-flex; align-items: center; gap: 2px; color: var(--ink2); }
button.wl:hover { color: var(--accent); }
.cue .nbody { flex: 1; min-width: 0; white-space: pre-wrap; overflow-wrap: anywhere; }

/* 公開範囲「会員」（管理画面の札）と、記事・小分類の札 */
.vis.v5 { background: #E3EDFA; color: #1D4F91; }
.tag.art { color: var(--ink2); border-color: var(--line2); background: var(--soft); }

/* 記事の回（受講画面）：動画の枠の代わりに読みやすい版面で本文を出す。スマホでも上に貼り付けない */
.player.artp { background: #fff; }
.mdpage { max-width: 720px; margin: 0 auto; padding: 36px 24px 48px; font-size: 16px; line-height: 1.9; color: var(--ink); overflow-wrap: anywhere; }
.mdhead { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.mdtitle { font-size: 30px; line-height: 1.45; margin: 0 0 12px; }
.mdlead { color: var(--ink2); margin: 0 0 28px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.mdbody h2 { font-size: 23px; margin: 2.2em 0 .7em; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.mdbody h3 { font-size: 19px; margin: 1.9em 0 .6em; }
.mdbody h4 { font-size: 16px; margin: 1.6em 0 .5em; }
.mdbody > :first-child { margin-top: 0; }
.mdbody p { margin: 0 0 1.25em; }
.mdbody ul, .mdbody ol { margin: 0 0 1.25em; padding-left: 1.6em; }
.mdbody li { margin: .3em 0; }
.mdbody li > ul, .mdbody li > ol { margin: .2em 0; }
.mdbody a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.mdbody a.glink { text-decoration-style: dotted; }
.mdbody strong { font-weight: 700; }
.mdbody code { font: .88em/1.5 ui-monospace, "SFMono-Regular", Consolas, monospace; background: var(--soft2); padding: 1px 5px; border-radius: 3px; }
.mdbody pre.mdcode { background: var(--dark); color: #F7F9FA; padding: 14px 16px; border-radius: 4px; overflow-x: auto; line-height: 1.6; margin: 0 0 1.4em; }
.mdbody pre.mdcode code { background: none; padding: 0; color: inherit; font-size: 13.5px; white-space: pre; }
.mdbody blockquote { margin: 0 0 1.4em; padding: 10px 16px; border-left: 3px solid var(--line2); background: var(--soft); color: var(--ink2); }
.mdbody blockquote > :last-child { margin-bottom: 0; }
.mdbody hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.mdtable { overflow-x: auto; margin: 0 0 1.4em; }
.mdtable table { border-collapse: collapse; font-size: 14px; line-height: 1.6; min-width: 100%; }
.mdtable th, .mdtable td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; vertical-align: top; }
.mdtable th { background: var(--soft); font-weight: 700; white-space: nowrap; }
.mdupd { margin-top: 28px; padding-top: 12px; border-top: 1px solid var(--line); }
.mdpage .lockpanel { margin-top: 8px; }
@media (max-width: 960px) {
  .watch .player.artp { position: static; }
  .mdpage { padding: 24px 16px 36px; font-size: 15.5px; }
  .mdtitle { font-size: 24px; }
}

/* 記事のカードの格子（Tips 型のカテゴリ）と、絞り込みの札・検索 */
.ttabs a { padding: 10px 0 12px; font-size: 15px; font-weight: 700; color: var(--ink2); border-bottom: 2px solid transparent; white-space: nowrap; }
.ttabs a.on { color: var(--ink); border-bottom-color: var(--ink); }
.ttabs a:hover { color: var(--ink); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 14px; }
.chips button { border: 1px solid var(--line2); background: #fff; border-radius: 16px; padding: 4px 12px; font-size: 13px; color: var(--ink2); }
.chips button:hover { border-color: var(--ink); color: var(--ink); }
.chips button.on { background: var(--ink); border-color: var(--ink); color: #fff; }
.chips .n { margin-left: 4px; font-size: 11px; opacity: .75; }
.atools { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin: 0 0 18px; }
.asearch { position: relative; flex: 1; min-width: 220px; max-width: 480px; display: flex; }
.asearch i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--ink2); }
.asearch input { width: 100%; height: 40px; padding-left: 38px; border-color: var(--line2); background: var(--soft); font-size: 14px; }
.asearch input:focus { outline: none; border-color: var(--ink); background: #fff; }
.agrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.acard { display: flex; flex-direction: column; gap: 8px; padding: 16px 18px; border: 1px solid var(--line); background: #fff; min-height: 168px; }
.acard:hover { border-color: var(--ink); }
.acard:hover h3 { color: var(--accent); }
.acard .atop { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; min-height: 20px; }
.acard .atop .sp { flex: 1; }
.acard h3 { font-size: 16px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.acard p { margin: 0; font-size: 13px; line-height: 1.7; color: var(--ink2); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.acard .ameta { margin-top: auto; font-size: 12px; color: var(--ink3); }
.acard .aread { display: inline-flex; align-items: center; gap: 2px; font-size: 12px; font-weight: 700; color: var(--ok); }
.acard .alock { display: inline-flex; color: var(--ink3); }
.acard.done h3 { color: var(--ink2); }
.aempty { display: flex; gap: 12px; align-items: flex-start; padding: 20px 22px; max-width: 640px; }
.aempty > i { color: var(--ink2); margin-top: 2px; }
.aempty p { margin: 4px 0 12px; }

/* 用語集 */
.gwrap { max-width: 960px; }
.ggroup h2 { font-size: 18px; margin: 28px 0 8px; padding-bottom: 6px; border-bottom: 1px solid var(--ink); }
.gitems { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.gitem { display: grid; grid-template-columns: auto 1fr; column-gap: 10px; align-items: baseline; padding: 10px 0; border-bottom: 1px solid var(--line); }
.gitem b { font-size: 15px; font-weight: 500; }
/* 大事な語（db/020 の important）：用語集の一覧・検索結果は太字と「重要」の印、本文中のリンクと関連する用語は太字 */
.gitem.imp b { font-weight: 800; }
.gimp { display: inline-block; margin-left: 6px; padding: 0 5px; border: 1px solid var(--accent); border-radius: 2px; color: var(--accent); font-size: 11px; font-weight: 700; line-height: 1.5; vertical-align: 2px; white-space: nowrap; }
.mdtitle .gimp { font-size: 12px; vertical-align: 6px; }
.mdbody a.glink.imp, .glinks a.imp { font-weight: 700; }
.gitem .gsum { grid-column: 1 / -1; font-size: 13px; color: var(--ink2); line-height: 1.6; }
.gitem:hover b { color: var(--accent); }
.gterm { padding-left: 0; padding-right: 0; margin: 0; }
.gread { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 14px; color: var(--ink2); margin: -4px 0 16px; }
.gsec { font-size: 18px; margin: 32px 0 10px; }
.glinks { display: flex; flex-wrap: wrap; gap: 8px; }
.glinks a { border: 1px solid var(--line2); padding: 3px 10px; font-size: 14px; border-radius: 2px; }
.glinks a:hover { border-color: var(--accent); color: var(--accent); }
.gsrc { margin: 0; padding-left: 1.4em; font-size: 14px; }
.greq { display: grid; gap: 10px; padding: 16px 18px; margin: 32px 0 16px; max-width: 720px; }
.greq b { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; }
.greqrow { display: flex; gap: 8px; flex-wrap: wrap; }
.greqrow input { height: 36px; padding: 0 10px; font-size: 14px; border-color: var(--line2); }
.greqrow input[name=term] { flex: 1 1 160px; }
.greqrow input[name=note] { flex: 2 1 220px; }
.greq.done { display: flex; align-items: center; gap: 6px; font-size: 14px; color: var(--ok); }
@media (max-width: 640px) { .gitems { grid-template-columns: 1fr; } }

/* 動画の透かし：見ている人の会員の番号・伏せたメール・日付を薄く重ねる（20秒ごとに場所を変える）。押せない（pointer-events: none） */
.wmark { position: absolute; z-index: 4; left: 8%; top: 10%; pointer-events: none; user-select: none; -webkit-user-select: none; color: #fff; opacity: .18;
  font: 600 13px/1.5 "Inter", "Noto Sans JP", sans-serif; white-space: nowrap; text-shadow: 0 0 2px rgba(0,0,0,.9), 0 1px 3px rgba(0,0,0,.8); transition: left 1s ease, top 1s ease; }
/* 全画面は #player（透かしごと）。動画を中央に、黒地で。iPhone の Safari は要素の全画面が無く、動画の標準の全画面になる（透かしは乗らない） */
#player:fullscreen { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; background: #000; }
#player:fullscreen video { width: 100%; height: 100%; max-height: none; aspect-ratio: auto; object-fit: contain; }
#player:fullscreen .wmark { font-size: 18px; }
#player:-webkit-full-screen { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; background: #000; }
#player:-webkit-full-screen video { width: 100%; height: 100%; max-height: none; aspect-ratio: auto; object-fit: contain; }
#player:-webkit-full-screen .wmark { font-size: 18px; }