/* =========================================================================
 * ConfigDeck Academy — スタイル（ランディング＋学習アプリ共通）
 * ブランド: クレイ×アイボリー（ConfigDeck / Claude系のあたたかい配色）
 * ライト/ダーク両対応。外部フォント・CDNなしで自己完結。
 * ========================================================================= */

:root{
  --clay:#c8663e;         /* 主役アクセント（クレイ） */
  --clay-2:#e0895f;       /* 明るいクレイ */
  --clay-ink:#8f3f1f;     /* 濃いクレイ（文字用） */
  --ivory:#fbf7f0;        /* 背景アイボリー */
  --ivory-2:#f3ece0;      /* 一段濃いアイボリー */
  --card:#ffffff;
  --ink:#2b2622;          /* 本文 */
  --ink-soft:#6b6259;     /* 補助テキスト */
  --line:#e7ddce;         /* 罫線 */
  --green:#3f9d6a;
  --red:#cf5a4b;
  --gold:#c99a3a;
  --info:#4a7fb0;
  --shadow:0 8px 30px rgba(80,50,30,.10);
  --shadow-lg:0 20px 60px rgba(80,50,30,.16);
  --radius:16px;
  --radius-sm:10px;
  --maxw:1100px;
  --font:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",Meiryo,sans-serif;
  --mono:"SF Mono",ui-monospace,Menlo,Consolas,"Courier New",monospace;
}
:root[data-theme="dark"], html.dark{
  --clay:#e08a5f; --clay-2:#eaa47f; --clay-ink:#f0b48f;
  --ivory:#191512; --ivory-2:#221c18; --card:#241d18;
  --ink:#f0e8df; --ink-soft:#b3a89b; --line:#3a2f27;
  --shadow:0 8px 30px rgba(0,0,0,.35); --shadow-lg:0 20px 60px rgba(0,0,0,.5);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --clay:#e08a5f; --clay-2:#eaa47f; --clay-ink:#f0b48f;
    --ivory:#191512; --ivory-2:#221c18; --card:#241d18;
    --ink:#f0e8df; --ink-soft:#b3a89b; --line:#3a2f27;
    --shadow:0 8px 30px rgba(0,0,0,.35); --shadow-lg:0 20px 60px rgba(0,0,0,.5);
  }
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; font-family:var(--font); color:var(--ink);
  background:var(--ivory); line-height:1.75; -webkit-font-smoothing:antialiased;
  font-size:16px;
}
a{color:var(--clay-ink); text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
h1,h2,h3,h4{line-height:1.35; margin:0 0 .4em}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 20px}
.center{text-align:center}
.muted{color:var(--ink-soft)}
.pill{display:inline-block; padding:4px 12px; border-radius:999px; font-size:.8rem; font-weight:700;
  background:var(--ivory-2); color:var(--clay-ink); border:1px solid var(--line)}

/* ---------- ボタン ---------- */
.btn{display:inline-flex; align-items:center; gap:.5em; cursor:pointer; border:none;
  font-family:inherit; font-weight:700; font-size:1rem; padding:13px 26px; border-radius:999px;
  transition:transform .12s ease, box-shadow .2s ease, background .2s; text-decoration:none}
.btn:hover{transform:translateY(-2px); text-decoration:none}
.btn:active{transform:translateY(0)}
.btn-primary{background:linear-gradient(135deg,var(--clay),var(--clay-2)); color:#fff; box-shadow:0 8px 24px rgba(200,102,62,.35)}
.btn-ghost{background:var(--card); color:var(--ink); border:1.5px solid var(--line)}
.btn-lg{font-size:1.1rem; padding:16px 34px}
.btn-block{display:flex; width:100%; justify-content:center}
.btn:disabled{opacity:.45; cursor:not-allowed; transform:none}

/* =========================================================================
 * ナビ
 * ========================================================================= */
.nav{position:sticky; top:0; z-index:50; backdrop-filter:saturate(1.4) blur(10px);
  background:color-mix(in srgb, var(--ivory) 82%, transparent); border-bottom:1px solid var(--line)}
.nav .wrap{display:flex; align-items:center; gap:14px; height:64px; flex-wrap:nowrap}
.brand{display:flex; align-items:center; gap:10px; font-weight:800; font-size:1.02rem; color:var(--ink); white-space:nowrap; flex-shrink:0}
.brand:hover{text-decoration:none}
.nav .btn{white-space:nowrap; flex-shrink:0}
.logo{width:34px; height:34px; border-radius:9px; display:grid; place-items:center; color:#fff; font-weight:900;
  background:linear-gradient(135deg,var(--clay),var(--clay-ink)); box-shadow:0 4px 12px rgba(200,102,62,.4); font-size:.9rem; letter-spacing:-1px}
.nav .spacer{flex:1}
.nav-links{display:flex; gap:15px; align-items:center; flex-shrink:0}
.nav-links a{color:var(--ink-soft); font-weight:600; font-size:.9rem; white-space:nowrap}
.nav-links a:hover{color:var(--clay-ink); text-decoration:none}
.theme-toggle{background:var(--card); border:1px solid var(--line); border-radius:999px; width:38px; height:38px;
  cursor:pointer; font-size:1.1rem; display:grid; place-items:center; color:var(--ink); flex-shrink:0}
/* 画面が狭いときはリンクを畳んで折り返しを防ぐ（ブランドとCTAは残す） */
@media(max-width:960px){ .nav-links{display:none} }

/* =========================================================================
 * ランディング
 * ========================================================================= */
.hero{position:relative; overflow:hidden; padding:70px 0 60px;
  background:radial-gradient(1200px 500px at 70% -10%, color-mix(in srgb,var(--clay) 22%, transparent), transparent 60%)}
.hero .wrap{position:relative; z-index:2}
.hero h1{font-size:clamp(2rem,5vw,3.4rem); font-weight:900; letter-spacing:-.02em; margin-bottom:.3em}
.hero .lead{font-size:clamp(1.05rem,2.2vw,1.3rem); color:var(--ink-soft); max-width:640px; margin:0 auto 1.6em}
.hero .cta-row{display:flex; gap:14px; justify-content:center; flex-wrap:wrap}
.hero .sub{margin-top:16px; font-size:.9rem}
.gradient-text{background:linear-gradient(120deg,var(--clay-ink),var(--clay-2)); -webkit-background-clip:text; background-clip:text; color:transparent}
.badge-row{display:flex; gap:10px; justify-content:center; flex-wrap:wrap; margin-bottom:22px}

.section{padding:64px 0}
.section-alt{background:var(--ivory-2)}
.section h2{font-size:clamp(1.5rem,3.2vw,2.2rem); font-weight:900; text-align:center; margin-bottom:.3em}
.section .sec-lead{text-align:center; color:var(--ink-soft); max-width:640px; margin:0 auto 40px}

.grid{display:grid; gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:860px){ .grid-3,.grid-4{grid-template-columns:1fr 1fr} }
@media(max-width:560px){ .grid-2,.grid-3,.grid-4{grid-template-columns:1fr} }

.card-box{background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:26px; box-shadow:var(--shadow)}
.card-box .ico{font-size:2rem; margin-bottom:.3em; display:block}
.card-box h3{font-size:1.15rem; margin-bottom:.4em}
.card-box p{color:var(--ink-soft); font-size:.95rem; margin:0}

/* 差別化バー */
.compare{overflow-x:auto}
.compare table{border-collapse:collapse; width:100%; min-width:560px; background:var(--card); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow)}
.compare th,.compare td{padding:14px 16px; text-align:left; border-bottom:1px solid var(--line); font-size:.95rem}
.compare th{background:var(--ivory-2); font-weight:800}
.compare td.ok{color:var(--green); font-weight:700}
.compare td.no{color:var(--ink-soft)}
.compare tr.us td{background:color-mix(in srgb,var(--clay) 10%, var(--card))}
.compare tr.us td:first-child{font-weight:800; color:var(--clay-ink)}

/* カリキュラムのタイムライン */
.timeline{max-width:760px; margin:0 auto; position:relative}
.timeline::before{content:""; position:absolute; left:26px; top:8px; bottom:8px; width:3px; background:var(--line)}
.tl-item{position:relative; padding:0 0 26px 66px}
.tl-item .dot{position:absolute; left:12px; top:0; width:32px; height:32px; border-radius:50%; display:grid; place-items:center;
  background:var(--card); border:3px solid var(--clay); font-size:1rem; z-index:1; box-shadow:var(--shadow)}
.tl-item h4{margin:2px 0 .2em; font-size:1.1rem}
.tl-item p{margin:0; color:var(--ink-soft); font-size:.92rem}
.tl-item .mins{font-size:.78rem; color:var(--clay-ink); font-weight:700}

/* 料金 */
.price-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:22px; align-items:stretch}
@media(max-width:860px){ .price-grid{grid-template-columns:1fr} }
.plan{background:var(--card); border:1.5px solid var(--line); border-radius:20px; padding:30px 26px; display:flex; flex-direction:column; position:relative; box-shadow:var(--shadow)}
.plan.feature{border-color:var(--clay); box-shadow:var(--shadow-lg); transform:scale(1.03)}
@media(max-width:860px){ .plan.feature{transform:none} }
.plan .tag{position:absolute; top:-13px; left:50%; transform:translateX(-50%); background:linear-gradient(135deg,var(--clay),var(--clay-2)); color:#fff; font-size:.78rem; font-weight:800; padding:5px 16px; border-radius:999px; white-space:nowrap}
.plan .pname{font-size:1.2rem; font-weight:900; margin-bottom:.1em}
.plan .pdesc{color:var(--ink-soft); font-size:.88rem; min-height:2.6em; margin-bottom:.6em}
.plan .price{font-size:2.2rem; font-weight:900; letter-spacing:-.02em}
.plan .price small{font-size:.9rem; font-weight:700; color:var(--ink-soft)}
.plan .price-alt{font-size:.85rem; color:var(--ink-soft); margin-bottom:16px}
.plan ul{list-style:none; padding:0; margin:0 0 22px; flex:1}
.plan li{padding:7px 0 7px 28px; position:relative; font-size:.92rem; border-bottom:1px dashed var(--line)}
.plan li::before{content:"✓"; position:absolute; left:0; color:var(--green); font-weight:900}
.plan li.muted-li{color:var(--ink-soft)}
.plan li.muted-li::before{content:"–"; color:var(--ink-soft)}
.perk-banner{background:linear-gradient(135deg, color-mix(in srgb,var(--clay) 16%, var(--card)), var(--card));
  border:1.5px dashed var(--clay); border-radius:var(--radius); padding:18px 22px; text-align:center; margin:30px auto 0; max-width:720px}
.perk-banner b{color:var(--clay-ink)}

/* FAQ */
.faq{max-width:760px; margin:0 auto}
.faq details{background:var(--card); border:1px solid var(--line); border-radius:var(--radius-sm); margin-bottom:12px; overflow:hidden}
.faq summary{cursor:pointer; padding:18px 20px; font-weight:700; list-style:none; display:flex; justify-content:space-between; align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"＋"; color:var(--clay); font-weight:900}
.faq details[open] summary::after{content:"－"}
.faq details p{padding:0 20px 18px; margin:0; color:var(--ink-soft)}

/* フッター */
.footer{background:var(--ivory-2); border-top:1px solid var(--line); padding:40px 0; text-align:center; color:var(--ink-soft); font-size:.9rem}

/* =========================================================================
 * 学習アプリ（app.html）
 * ========================================================================= */
.app-shell{display:grid; grid-template-columns:300px 1fr; min-height:calc(100vh - 64px)}
@media(max-width:900px){ .app-shell{grid-template-columns:1fr} }

.sidebar{background:var(--ivory-2); border-right:1px solid var(--line); padding:20px 0; overflow-y:auto;
  max-height:calc(100vh - 64px); position:sticky; top:64px}
@media(max-width:900px){ .sidebar{position:static; max-height:none; border-right:none; border-bottom:1px solid var(--line)} }
.sb-progress{padding:0 20px 16px; border-bottom:1px solid var(--line); margin-bottom:12px}
.progress-bar{height:10px; background:var(--line); border-radius:999px; overflow:hidden; margin:8px 0}
.progress-bar > i{display:block; height:100%; background:linear-gradient(90deg,var(--clay),var(--clay-2)); width:0; transition:width .5s ease}
.progress-meta{display:flex; justify-content:space-between; font-size:.82rem; color:var(--ink-soft)}
.xp-badge{display:inline-flex; align-items:center; gap:5px; background:var(--card); border:1px solid var(--line); border-radius:999px; padding:3px 10px; font-size:.8rem; font-weight:800; color:var(--gold)}

.sb-mod{margin:0 0 4px}
.sb-mod-head{display:flex; align-items:center; gap:8px; padding:11px 20px; cursor:pointer; font-weight:800; font-size:.92rem; user-select:none}
.sb-mod-head:hover{background:var(--card)}
.sb-mod-head .st{margin-left:auto; font-size:.9rem}
.sb-lessons{display:none; padding:0 0 6px}
.sb-mod.open .sb-lessons{display:block}
.sb-lesson{display:flex; align-items:center; gap:8px; padding:8px 20px 8px 44px; cursor:pointer; font-size:.87rem; color:var(--ink-soft); border-left:3px solid transparent}
.sb-lesson:hover{background:var(--card); color:var(--ink)}
.sb-lesson.active{background:var(--card); color:var(--clay-ink); border-left-color:var(--clay); font-weight:700}
.sb-lesson .tick{width:16px; height:16px; border-radius:50%; border:1.5px solid var(--line); flex:none; display:grid; place-items:center; font-size:.6rem}
.sb-lesson.done .tick{background:var(--green); border-color:var(--green); color:#fff}
.sb-quiz .tick{border-radius:4px}
.sb-lesson.locked{opacity:.5; cursor:not-allowed}

/* レッスン本文（流れるスライド） */
.content{padding:36px 8px 120px; overflow-x:hidden}
.content-inner{max-width:760px; margin:0 auto}
.lesson-head{margin-bottom:24px}
.lesson-head .crumb{font-size:.82rem; color:var(--clay-ink); font-weight:700; letter-spacing:.02em}
.lesson-head h1{font-size:clamp(1.5rem,3.5vw,2.1rem); font-weight:900; margin-top:.15em}

/* 流れる（スクロール出現）アニメ */
.block{opacity:0; transform:translateY(24px); transition:opacity .6s ease, transform .6s ease}
.block.in{opacity:1; transform:none}
.block{margin:0 0 22px}
.block h3.b-h{font-size:1.25rem; font-weight:800; margin:8px 0 2px; padding-top:6px; border-top:2px solid var(--line)}
.block p.b-p{margin:0; font-size:1.03rem}
.block ul.b-list, .block ol.b-steps{margin:0; padding-left:0; list-style:none}
.b-list li{position:relative; padding:6px 0 6px 26px}
.b-list li::before{content:"●"; position:absolute; left:2px; color:var(--clay); font-size:.7rem; top:11px}
.b-steps{counter-reset:st}
.b-steps li{position:relative; padding:8px 0 8px 44px; counter-increment:st}
.b-steps li::before{content:counter(st); position:absolute; left:0; top:6px; width:28px; height:28px; border-radius:50%;
  background:var(--clay); color:#fff; font-weight:800; display:grid; place-items:center; font-size:.9rem}

code.inline{font-family:var(--mono); background:var(--ivory-2); border:1px solid var(--line); border-radius:6px; padding:1px 6px; font-size:.9em; color:var(--clay-ink)}
pre.codeblock{background:#1e1a16; color:#f3ece0; border-radius:12px; padding:18px 18px; overflow-x:auto; font-family:var(--mono); font-size:.9rem; line-height:1.65; position:relative; border:1px solid #3a2f27}
:root[data-theme="dark"] pre.codeblock, html.dark pre.codeblock{background:#100d0b}
pre.codeblock .lang{position:absolute; top:0; right:0; font-size:.68rem; background:rgba(255,255,255,.08); color:#e0895f; padding:3px 10px; border-radius:0 12px 0 8px; font-weight:700; letter-spacing:.05em}
pre.codeblock .copy{position:absolute; bottom:8px; right:8px; background:rgba(255,255,255,.1); border:none; color:#f3ece0; cursor:pointer; font-size:.72rem; padding:4px 10px; border-radius:6px; font-family:var(--font)}
pre.codeblock .copy:hover{background:rgba(255,255,255,.22)}

.callout{border-radius:12px; padding:16px 18px 16px 48px; position:relative; font-size:.96rem; border:1px solid var(--line)}
.callout .c-ico{position:absolute; left:16px; top:15px; font-size:1.2rem}
.callout .c-title{font-weight:800; margin-bottom:.2em}
.callout p{margin:0}
.callout.tip{background:color-mix(in srgb,var(--green) 10%,var(--card)); border-color:color-mix(in srgb,var(--green) 30%,var(--line))}
.callout.warn{background:color-mix(in srgb,var(--red) 10%,var(--card)); border-color:color-mix(in srgb,var(--red) 30%,var(--line))}
.callout.key{background:color-mix(in srgb,var(--clay) 12%,var(--card)); border-color:color-mix(in srgb,var(--clay) 35%,var(--line))}
.callout.info{background:color-mix(in srgb,var(--info) 10%,var(--card)); border-color:color-mix(in srgb,var(--info) 30%,var(--line))}
.callout.money{background:color-mix(in srgb,var(--gold) 12%,var(--card)); border-color:color-mix(in srgb,var(--gold) 35%,var(--line))}

.figure{background:linear-gradient(135deg,var(--ivory-2),var(--card)); border:1px solid var(--line); border-radius:14px; padding:26px; text-align:center}
.figure .emoji{font-size:2.6rem; display:block; margin-bottom:.3em}
.figure .cap{color:var(--ink-soft); font-size:.95rem; font-weight:600}

/* レッスン内ミニ確認 & 小テスト共通 */
.check-card{background:var(--card); border:2px solid var(--clay); border-radius:14px; padding:22px; box-shadow:var(--shadow)}
.check-card .q{font-weight:800; margin-bottom:14px; display:flex; gap:8px}
.check-card .q .qbadge{background:var(--clay); color:#fff; border-radius:8px; padding:1px 9px; font-size:.75rem; font-weight:800; height:fit-content; white-space:nowrap}
.opt{display:block; width:100%; text-align:left; background:var(--ivory); border:1.5px solid var(--line); border-radius:10px;
  padding:12px 16px; margin-bottom:8px; cursor:pointer; font-family:inherit; font-size:.96rem; color:var(--ink); transition:.15s}
.opt:hover{border-color:var(--clay); background:var(--card)}
.opt.correct{border-color:var(--green); background:color-mix(in srgb,var(--green) 15%,var(--card)); font-weight:700}
.opt.wrong{border-color:var(--red); background:color-mix(in srgb,var(--red) 12%,var(--card))}
.opt.disabled{cursor:default; pointer-events:none}
.explain{margin-top:12px; padding:12px 14px; background:var(--ivory-2); border-radius:10px; font-size:.9rem; border-left:3px solid var(--clay)}
.explain.ok{border-left-color:var(--green)}
.explain.ng{border-left-color:var(--red)}

/* ナビゲーション（次へ/前へ） */
.lesson-nav{display:flex; justify-content:space-between; gap:12px; margin-top:40px; padding-top:24px; border-top:1px solid var(--line)}

/* 小テスト画面 */
.quiz-wrap{max-width:720px; margin:0 auto}
.quiz-head{text-align:center; margin-bottom:28px}
.quiz-head .pill{margin-bottom:10px}
.quiz-q{background:var(--card); border:1px solid var(--line); border-radius:14px; padding:22px; margin-bottom:16px; box-shadow:var(--shadow)}
.quiz-q .qn{font-weight:800; margin-bottom:14px}
.quiz-result{text-align:center; padding:40px 20px; background:var(--card); border-radius:18px; box-shadow:var(--shadow-lg); border:1px solid var(--line)}
.quiz-result .big{font-size:3rem; font-weight:900; margin:.1em 0}
.quiz-result .pass{color:var(--green)}
.quiz-result .fail{color:var(--red)}
.scorebar{height:14px; background:var(--line); border-radius:999px; overflow:hidden; max-width:320px; margin:16px auto}
.scorebar > i{display:block; height:100%; background:linear-gradient(90deg,var(--clay),var(--clay-2))}

/* 修了証 */
.cert{background:var(--card); border:3px double var(--clay); border-radius:16px; padding:44px 36px; text-align:center; max-width:640px; margin:0 auto; box-shadow:var(--shadow-lg); position:relative}
.cert .seal{width:80px; height:80px; border-radius:50%; margin:0 auto 16px; display:grid; place-items:center; font-size:2rem;
  background:linear-gradient(135deg,var(--clay),var(--clay-ink)); color:#fff; box-shadow:0 8px 20px rgba(200,102,62,.4)}
.cert h2{font-size:1.6rem; letter-spacing:.05em}
.cert .name{font-size:2rem; font-weight:900; color:var(--clay-ink); border-bottom:2px solid var(--line); display:inline-block; padding:6px 30px; margin:14px 0}
.cert .meta{color:var(--ink-soft); font-size:.9rem; margin-top:16px}

/* Q&Aモーダル */
.modal-back{position:fixed; inset:0; background:rgba(30,20,10,.55); backdrop-filter:blur(3px); z-index:100; display:none; align-items:flex-start; justify-content:center; padding:40px 16px; overflow-y:auto}
.modal-back.open{display:flex}
.modal{background:var(--ivory); border-radius:18px; width:100%; max-width:720px; box-shadow:var(--shadow-lg); overflow:hidden; border:1px solid var(--line)}
.modal-head{display:flex; align-items:center; gap:12px; padding:18px 22px; border-bottom:1px solid var(--line); background:var(--card); position:sticky; top:0}
.modal-head h3{margin:0; flex:1}
.modal-close{background:var(--ivory-2); border:1px solid var(--line); width:34px; height:34px; border-radius:50%; cursor:pointer; font-size:1.1rem; color:var(--ink)}
.qa-search{width:100%; padding:12px 16px; border:1.5px solid var(--line); border-radius:10px; font-family:inherit; font-size:1rem; margin:16px 22px; width:calc(100% - 44px); background:var(--card); color:var(--ink)}
.qa-body{padding:0 22px 22px; max-height:60vh; overflow-y:auto}
.qa-cat{font-size:.78rem; font-weight:800; color:var(--clay-ink); text-transform:uppercase; letter-spacing:.05em; margin:18px 0 6px}
.qa-item{background:var(--card); border:1px solid var(--line); border-radius:10px; margin-bottom:8px; overflow:hidden}
.qa-item summary{cursor:pointer; padding:13px 16px; font-weight:700; list-style:none; font-size:.95rem}
.qa-item summary::-webkit-details-marker{display:none}
.qa-item .qa-a{padding:0 16px 14px; color:var(--ink-soft); font-size:.92rem; white-space:pre-wrap}
.qa-empty{text-align:center; color:var(--ink-soft); padding:30px}

/* トースト */
.toast{position:fixed; bottom:24px; left:50%; transform:translateX(-50%) translateY(120px); background:var(--ink); color:var(--ivory);
  padding:12px 22px; border-radius:999px; font-weight:700; z-index:200; transition:transform .35s cubic-bezier(.2,.8,.2,1); box-shadow:var(--shadow-lg)}
.toast.show{transform:translateX(-50%) translateY(0)}

/* バッジ獲得演出 */
.badge-pop{display:inline-flex; align-items:center; gap:6px; background:color-mix(in srgb,var(--gold) 18%,var(--card)); border:1px solid var(--gold); color:var(--gold); border-radius:999px; padding:4px 12px; font-weight:800; font-size:.85rem}

/* 法人ページ簡易表 */
.biz-features{list-style:none; padding:0; margin:20px 0; display:grid; grid-template-columns:1fr 1fr; gap:10px}
@media(max-width:560px){ .biz-features{grid-template-columns:1fr} }
.biz-features li{background:var(--card); border:1px solid var(--line); border-radius:10px; padding:12px 14px; padding-left:38px; position:relative; font-size:.92rem}
.biz-features li::before{content:"◆"; position:absolute; left:14px; color:var(--clay)}

/* mobile sidebar toggle */
.sb-toggle{display:none}
@media(max-width:900px){
  .sb-toggle{display:flex; align-items:center; gap:8px; margin:12px 20px; padding:10px 16px; background:var(--card); border:1px solid var(--line); border-radius:10px; cursor:pointer; font-weight:700; width:calc(100% - 40px)}
  .sidebar.collapsed .sb-inner{display:none}
}

/* =========================================================================
 * ★WOW UPGRADE — シネマティック・ヒーロー / 100% Claude Code製 演出
 * ========================================================================= */

/* --- シネマティックな暗色ヒーロー --- */
.hero2{position:relative;overflow:hidden;background:#0f0b16;color:#f3ece0;
  padding:104px 0 88px;isolation:isolate}
.hero2 .aurora{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.hero2 .blob{position:absolute;border-radius:50%;filter:blur(66px);opacity:.55;
  mix-blend-mode:screen;animation:drift 20s ease-in-out infinite}
.hero2 .blob.b1{width:540px;height:540px;background:radial-gradient(circle,#e0895f,transparent 70%);top:-150px;left:-90px}
.hero2 .blob.b2{width:480px;height:480px;background:radial-gradient(circle,#c8663e,transparent 70%);bottom:-180px;right:-70px;animation-delay:-7s}
.hero2 .blob.b3{width:420px;height:420px;background:radial-gradient(circle,#8455d6,transparent 70%);top:26%;right:24%;animation-delay:-13s;opacity:.4}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(46px,-34px) scale(1.12)}66%{transform:translate(-34px,24px) scale(.94)}}
.hero2 .grid-overlay{position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 38%,#000 28%,transparent 74%);
  mask-image:radial-gradient(ellipse at 50% 38%,#000 28%,transparent 74%)}
.hero2 .wrap{position:relative;z-index:2}

.glow-pill{display:inline-flex;align-items:center;gap:8px;padding:9px 20px;border-radius:999px;
  font-weight:800;font-size:.9rem;margin-bottom:26px;color:#ffdcc4;
  background:rgba(224,137,95,.14);border:1px solid rgba(224,137,95,.5);
  box-shadow:0 0 0 0 rgba(224,137,95,.5);animation:pulseGlow 2.6s ease-out infinite}
@keyframes pulseGlow{0%{box-shadow:0 0 0 0 rgba(224,137,95,.45)}70%{box-shadow:0 0 0 16px rgba(224,137,95,0)}100%{box-shadow:0 0 0 0 rgba(224,137,95,0)}}

.hero2-h{font-size:clamp(2.1rem,5.4vw,3.7rem);font-weight:900;letter-spacing:-.02em;margin:6px 0 .3em;line-height:1.24}
.gt{background:linear-gradient(120deg,#e0895f,#eaa47f 40%,#f6c9a3);-webkit-background-clip:text;background-clip:text;color:transparent;
  position:relative}
.hero2-lead{font-size:clamp(1.02rem,2.1vw,1.28rem);color:rgba(243,236,224,.82);max-width:660px;margin:0 auto 30px}
.hero2 .cta-row .btn-ghost{background:rgba(255,255,255,.06);color:#f3ece0;border-color:rgba(255,255,255,.22)}
.hero2 .sub{color:rgba(243,236,224,.6)}

/* ボタンのシャイン */
.btn-shine{position:relative;overflow:hidden}
.btn-shine::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);
  animation:shine 3.4s ease-in-out infinite}
@keyframes shine{0%{left:-120%}55%,100%{left:130%}}

/* --- ターミナル（自動構築アニメ） --- */
.term{max-width:700px;margin:0 auto 36px;text-align:left;overflow:hidden;border-radius:15px;
  background:rgba(18,13,24,.72);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.13);
  box-shadow:0 34px 90px rgba(0,0,0,.55),0 0 0 1px rgba(224,137,95,.08)}
.term-bar{display:flex;align-items:center;gap:7px;padding:11px 15px;background:rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.08)}
.term-bar i{width:12px;height:12px;border-radius:50%;display:block}
.term-bar .r{background:#ff5f57}.term-bar .y{background:#febc2e}.term-bar .g{background:#28c840}
.term-bar span{margin-left:10px;font-size:.76rem;color:rgba(243,236,224,.5);font-family:var(--mono)}
.term-body{padding:18px 18px 20px;font-family:var(--mono);font-size:.85rem;line-height:1.75;min-height:236px}
.term-body .l-prompt .p{color:#e0895f}
.term-body .l-prompt .c{color:#f3ece0}
.term-body .l-user .p{color:#8455d6}
.term-body .l-user .c{color:#f3ece0}
.term-body .l-log{color:#bfe0c6}
.term-body .l-log .dim{color:rgba(243,236,224,.5)}
.term-body .l-log .mark{color:#e0895f}
.term-body .l-done{color:#8ee6ab;font-weight:700;margin-top:4px}
.term-body .line{opacity:0;transform:translateY(4px);transition:opacity .25s,transform .25s}
.term-body .line.on{opacity:1;transform:none}
.cursor{display:inline-block;width:9px;height:1.02em;background:#e0895f;vertical-align:-2px;margin-left:1px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* --- ヒーロー内カウンター --- */
.stats2{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:760px;margin:8px auto 0}
@media(max-width:620px){.stats2{grid-template-columns:1fr 1fr}}
.stat2{text-align:center;padding:6px}
.stat2 .n{font-size:clamp(1.9rem,4.4vw,2.6rem);font-weight:900;letter-spacing:-.02em;line-height:1;
  background:linear-gradient(120deg,#e0895f,#f0b48f);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat2 .l{font-size:.8rem;color:rgba(243,236,224,.68);font-weight:700;margin-top:6px}

/* --- 「100% Claude Code製」ストーリー帯 --- */
.made-band{position:relative;overflow:hidden;background:linear-gradient(135deg,#17101f,#241528 60%,#1b1020);color:#f3ece0;padding:78px 0}
.made-band .blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.35;mix-blend-mode:screen}
.made-band .blob.m1{width:420px;height:420px;background:radial-gradient(circle,#c8663e,transparent 70%);top:-120px;right:-60px}
.made-band .blob.m2{width:360px;height:360px;background:radial-gradient(circle,#8455d6,transparent 70%);bottom:-140px;left:-40px}
.made-band .wrap{position:relative;z-index:2;max-width:920px}
.made-band h2{color:#fff}
.made-band .big-quote{font-size:clamp(1.5rem,3.6vw,2.4rem);font-weight:900;line-height:1.5;text-align:center;letter-spacing:-.01em}
.made-band .big-quote .hi{background:linear-gradient(120deg,#e0895f,#f0b48f);-webkit-background-clip:text;background-clip:text;color:transparent}
.made-band .sub-lead{text-align:center;color:rgba(243,236,224,.75);max-width:640px;margin:18px auto 0;font-size:1.05rem}
.pipeline{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin:42px auto 0;max-width:860px}
@media(max-width:720px){.pipeline{grid-template-columns:1fr 1fr}}
@media(max-width:420px){.pipeline{grid-template-columns:1fr}}
.pl-step{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:18px 14px;text-align:center;position:relative}
.pl-step .pn{position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,#c8663e,#e0895f);color:#fff;font-size:.7rem;font-weight:800;padding:2px 10px;border-radius:999px;white-space:nowrap}
.pl-step .pi{font-size:1.7rem;display:block;margin:6px 0 6px}
.pl-step .pt{font-weight:800;font-size:.94rem}
.pl-step .pd{font-size:.78rem;color:rgba(243,236,224,.62);margin-top:3px}
.made-cta{text-align:center;margin-top:40px}
.made-cta .zero{display:inline-flex;align-items:center;gap:10px;background:rgba(142,230,171,.12);border:1px solid rgba(142,230,171,.4);color:#8ee6ab;font-weight:800;padding:8px 18px;border-radius:999px;margin-bottom:22px}

/* --- 汎用スクロール出現（.anim-on が付く=JS有効時のみ隠す＝JS無効でも全表示） --- */
.anim-on .reveal{opacity:0;transform:translateY(34px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.anim-on .reveal.in{opacity:1;transform:none}

/* --- セクション見出しにアクセント下線 --- */
.section h2::after,.made-band h2::after{content:"";display:block;width:54px;height:4px;border-radius:999px;
  background:linear-gradient(90deg,var(--clay),var(--clay-2));margin:14px auto 0}

/* --- カードのホバー格上げ --- */
.card-box{transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s,border-color .25s}
.card-box:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:color-mix(in srgb,var(--clay) 40%,var(--line))}
.plan{transition:transform .25s,box-shadow .25s}
.plan:hover{transform:translateY(-6px)}
.plan.feature:hover{transform:scale(1.03) translateY(-6px)}
@media(max-width:860px){.plan.feature:hover{transform:translateY(-6px)}}

/* --- ナビにも100%バッジ映えるよう微調整 --- */
.nav .mini-badge{font-size:.72rem;font-weight:800;color:var(--clay-ink);background:var(--ivory-2);border:1px solid var(--line);padding:3px 9px;border-radius:999px}

@media (prefers-reduced-motion: reduce){
  .hero2 .blob,.made-band .blob,.glow-pill,.btn-shine::after{animation:none!important}
  .anim-on .reveal{opacity:1!important;transform:none!important;transition:none}
  .term-body .line{opacity:1;transform:none}
}

/* --- レッスン内ツール誘導カード（組織図ビルダー等） --- */
.lesson-tool{display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  background:linear-gradient(135deg,color-mix(in srgb,var(--clay) 12%,var(--card)),var(--card));
  border:1.5px solid var(--clay);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow)}
.lesson-tool .lt-emoji{font-size:2.2rem;line-height:1}
.lesson-tool .lt-body{flex:1;min-width:180px}
.lesson-tool .lt-title{font-weight:800;font-size:1.05rem}
.lesson-tool .lt-note{color:var(--ink-soft);font-size:.9rem;margin-top:3px}

/* --- サイドバーのコース見出し --- */
.sb-course{padding:14px 20px 12px;border-bottom:1px solid var(--line)}
.sb-back{font-size:.8rem;font-weight:700;color:var(--clay-ink)}
.sb-back:hover{text-decoration:underline}
.sb-course-title{font-weight:900;font-size:1rem;margin-top:6px;line-height:1.35}

/* =========================================================================
 * コースカタログ（courses.html）
 * ========================================================================= */
.cat-hero{padding:56px 0 30px;text-align:center;
  background:radial-gradient(1000px 400px at 50% -10%, color-mix(in srgb,var(--clay) 18%, transparent), transparent 62%)}
.cat-hero h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;letter-spacing:-.02em}
.cat-hero p{color:var(--ink-soft);max-width:640px;margin:10px auto 0;font-size:1.05rem}
.cat-grow{display:inline-flex;align-items:center;gap:8px;margin-top:18px;background:color-mix(in srgb,var(--clay) 12%,var(--card));
  border:1.5px dashed var(--clay);border-radius:999px;padding:8px 18px;font-weight:800;color:var(--clay-ink);font-size:.92rem}

.cat-section{padding:20px 0 60px}
.cat-section h2{font-size:1.3rem;font-weight:900;margin:26px 0 4px;display:flex;align-items:center;gap:10px}
.cat-section .sub{color:var(--ink-soft);font-size:.92rem;margin:0 0 18px}
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:860px){ .course-grid{grid-template-columns:1fr 1fr} }
@media(max-width:560px){ .course-grid{grid-template-columns:1fr} }
.course-card{display:flex;flex-direction:column;background:var(--card);border:1.5px solid var(--line);border-radius:18px;
  padding:24px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s;text-decoration:none;color:var(--ink)}
.course-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--clay);text-decoration:none}
.course-card.flagship{border-color:var(--clay);background:linear-gradient(135deg,color-mix(in srgb,var(--clay) 10%,var(--card)),var(--card))}
.course-card .cc-emoji{font-size:2.4rem;line-height:1}
.course-card .cc-badges{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0 8px}
.course-card .cc-tag{font-size:.72rem;font-weight:800;padding:3px 10px;border-radius:999px;background:var(--ivory-2);color:var(--clay-ink);border:1px solid var(--line)}
.course-card .cc-tag.new{background:color-mix(in srgb,var(--green) 16%,var(--card));color:var(--green);border-color:color-mix(in srgb,var(--green) 30%,var(--line))}
.course-card h3{font-size:1.12rem;font-weight:900;margin:2px 0 .3em;line-height:1.35}
.course-card .cc-sub{color:var(--ink-soft);font-size:.9rem;flex:1;margin:0 0 14px}
.course-card .cc-meta{display:flex;gap:14px;font-size:.8rem;color:var(--ink-soft);margin-bottom:14px;flex-wrap:wrap}
.course-card .cc-cta{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:linear-gradient(135deg,var(--clay),var(--clay-2));
  color:#fff;font-weight:800;padding:11px 0;border-radius:999px;font-size:.95rem}
.course-card.soon{opacity:.75;cursor:default}
.course-card.soon:hover{transform:none;border-color:var(--line)}
.course-card.soon .cc-cta{background:var(--ivory-2);color:var(--ink-soft)}

/* --- 言語スイッチャー(🌐) --- */
.lang-switch{display:inline-flex;align-items:center;gap:5px;flex-shrink:0;background:var(--card);
  border:1px solid var(--line);border-radius:999px;padding:3px 6px 3px 10px;height:38px}
.lang-switch .lang-globe{font-size:.95rem;line-height:1}
.lang-switch select{border:none;background:transparent;color:var(--ink);font-family:inherit;font-weight:700;
  font-size:.82rem;cursor:pointer;padding:2px 2px;outline:none}
.lang-switch select option{color:#111}
@media(max-width:520px){ .lang-switch select{max-width:74px} }

/* =========================================================================
 * ★WORLD-CLASS POLISH — 表示フォント・質感・モーションの磨き込み
 * ========================================================================= */
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:600;font-display:swap;
  src:url('fonts/space-grotesk-600.woff2') format('woff2');}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;
  src:url('fonts/space-grotesk-700.woff2') format('woff2');}
:root{
  --display:"Space Grotesk", var(--font);
  --shadow:0 1px 2px rgba(60,40,25,.04), 0 8px 24px rgba(60,40,25,.08);
  --shadow-lg:0 2px 6px rgba(60,40,25,.06), 0 24px 60px rgba(60,40,25,.14);
  --ease:cubic-bezier(.2,.7,.2,1);
  --ease-spring:cubic-bezier(.22,1.2,.36,1);
}
:root[data-theme="dark"], html.dark{
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 10px 30px rgba(0,0,0,.4);
  --shadow-lg:0 2px 8px rgba(0,0,0,.4), 0 30px 70px rgba(0,0,0,.6);
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 10px 30px rgba(0,0,0,.4);
  --shadow-lg:0 2px 8px rgba(0,0,0,.4), 0 30px 70px rgba(0,0,0,.6);
}}

/* 見出しは表示フォント＋精緻なトラッキング */
h1,h2,h3,h4,.hero2-h,.cat-h1,.big-quote,.section h2,.plan .pname,.stat2 .n,.cert h2,.cert .name{
  font-family:var(--display); letter-spacing:-.02em; font-feature-settings:"ss01","cv01";
}
.hero2-h,.cat-h1{letter-spacing:-.035em; line-height:1.08}
.section h2{letter-spacing:-.025em}
body{ text-rendering:optimizeLegibility; -moz-osx-font-smoothing:grayscale; letter-spacing:-.006em }

/* ナビ：より繊細なガラス感 */
.nav{background:color-mix(in srgb, var(--ivory) 72%, transparent); backdrop-filter:saturate(1.5) blur(16px); -webkit-backdrop-filter:saturate(1.5) blur(16px)}
.nav-links a{transition:color .18s var(--ease); position:relative}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-4px;height:1.5px;background:var(--clay);transition:right .28s var(--ease);border-radius:2px}
.nav-links a:hover::after{right:0}

/* ボタン：内側ハイライト＋スプリング */
.btn{transition:transform .32s var(--ease-spring), box-shadow .3s var(--ease), filter .2s; will-change:transform}
.btn-primary{box-shadow:0 1px 0 rgba(255,255,255,.25) inset, 0 8px 22px rgba(200,102,62,.32), 0 2px 6px rgba(200,102,62,.2)}
.btn-primary:hover{filter:saturate(1.06) brightness(1.03)}
.btn:hover{transform:translateY(-3px)}
.btn:active{transform:translateY(-1px) scale(.99)}

/* カード：境界の光沢・上質なホバー */
.card-box{transition:transform .4s var(--ease-spring), box-shadow .35s var(--ease), border-color .35s; position:relative}
.card-box::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;
  background:linear-gradient(140deg, color-mix(in srgb,var(--clay) 30%,transparent), transparent 40%);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor; mask-composite:exclude; opacity:0; transition:opacity .35s var(--ease)}
.card-box:hover::before{opacity:1}
.plan,.course-card,.compare table,.faq details{transition:transform .4s var(--ease-spring), box-shadow .35s var(--ease), border-color .3s}

/* 暗色セクションに微細なグレイン（フィルム質感） */
.hero2::after,.made-band::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.hero2 .wrap,.made-band .wrap{position:relative;z-index:3}

/* 出現アニメをよりスプリングに */
.anim-on .reveal{transition:opacity .8s var(--ease), transform .8s var(--ease-spring)}
.block{transition:opacity .7s var(--ease), transform .7s var(--ease-spring)}

/* ヒーロー統計：区切りを上品に */
.stats2{position:relative;padding-top:26px;margin-top:20px;border-top:1px solid rgba(255,255,255,.1)}
.stat2 .n{font-weight:700}

/* 料金プラン：フィーチャーの浮遊感を洗練 */
.plan.feature{box-shadow:0 2px 8px rgba(200,102,62,.12), 0 30px 70px rgba(200,102,62,.18)}

/* リンク下線を上品に */
a{text-underline-offset:3px}

/* フォーカスリング（アクセシビリティ＋上質さ） */
a:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--clay); outline-offset:2px; border-radius:4px}

/* セクション見出しの下線をグラデ＋細く */
.section h2::after,.made-band h2::after{height:3px;width:48px;opacity:.9}

/* スクロールバー（対応ブラウザ） */
*{scrollbar-width:thin; scrollbar-color:color-mix(in srgb,var(--clay) 40%,transparent) transparent}