@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+JP:wght@400;500;600;700&display=swap');:root{--ink:#10201b;--muted:#66756f;--line:rgba(16,32,27,.09);--paper:#fff;--wash:#f5faf8;--green:#18c98b;--deep:#0d8a64;--mint:#d9f9ec;--amber:#f1a93b;--danger:#c83d4a;--shadow:0 18px 50px rgba(12,65,48,.08);--radius:22px}.manabiya-app,.manabiya-app *{box-sizing:border-box}html{scroll-behavior:smooth}body.manabiya-app{margin:0;background:var(--wash)}.manabiya-app{margin:0;background:var(--wash);color:var(--ink);font-family:Inter,'Noto Sans JP',system-ui,sans-serif;line-height:1.7}.manabiya-app a{color:inherit}.manabiya-app .container{width:min(1180px,calc(100% - 40px));margin:auto}.manabiya-app .muted{color:var(--muted)}.manabiya-app .eyebrow{font-size:.73rem;font-weight:700;letter-spacing:.18em;color:var(--deep);text-transform:uppercase}.manabiya-app .brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:1.12rem;font-weight:700;letter-spacing:-.03em}.manabiya-app .brand-large{font-size:1.35rem}.manabiya-app .brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:var(--ink);color:#fff;font-weight:700}.manabiya-app .site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.manabiya-app .header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.manabiya-app .site-nav{display:flex;align-items:center;gap:22px}.manabiya-app .site-nav a{text-decoration:none;font-size:.92rem;font-weight:600;color:#40504a}.manabiya-app .site-nav a:hover{color:var(--deep)}.manabiya-app .site-nav a.button-primary,.manabiya-app .site-nav a.button-primary:hover{color:#fff}.manabiya-app .member-chip{display:flex;align-items:center;gap:12px;padding:7px 8px 7px 14px;border:1px solid var(--line);border-radius:999px;background:#fff}.manabiya-app .member-chip form{margin:0}.manabiya-app .link-button{border:0;background:transparent;color:var(--muted);font:inherit;cursor:pointer;padding:5px 8px}.manabiya-app .button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:11px 20px;background:#fff;text-decoration:none;font:600 .92rem/1.2 inherit;cursor:pointer;transition:.2s}.manabiya-app .button:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(16,32,27,.08)}.manabiya-app .button-primary{background:var(--ink);color:#fff;border-color:var(--ink)}.manabiya-app .button-accent{background:var(--green);color:var(--ink);border-color:var(--green)}.manabiya-app .button-danger{background:#fff2f3;color:var(--danger);border-color:#ffd8dc}.manabiya-app .button-wide{width:100%;padding:14px 20px}.manabiya-app .hero{position:relative;overflow:hidden;padding:90px 0 74px;background:radial-gradient(circle at 75% 15%,rgba(24,201,139,.26),transparent 30%),radial-gradient(circle at 10% 70%,rgba(86,169,255,.14),transparent 28%),linear-gradient(180deg,#fff 0%,#f5faf8 100%);border-bottom:1px solid var(--line)}.manabiya-app .hero::after{content:"";position:absolute;right:-100px;bottom:-160px;width:420px;height:420px;border:70px solid rgba(24,201,139,.08);border-radius:50%}.manabiya-app .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:54px;align-items:center}.manabiya-app .hero h1{font-size:clamp(2.65rem,5.5vw,5.25rem);line-height:1.04;letter-spacing:-.065em;margin:14px 0 24px;max-width:850px}.manabiya-app .hero h1 span{color:var(--deep)}.manabiya-app .hero-copy{font-size:1.08rem;max-width:630px;color:#52615c}.manabiya-app .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.manabiya-app .hero-panel{position:relative;background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:30px;padding:26px;box-shadow:var(--shadow)}.manabiya-app .hero-panel h2{font-size:1.08rem;margin:0 0 16px}.manabiya-app .progress-ring{--value:0;display:grid;place-items:center;width:138px;height:138px;margin:10px auto 22px;border-radius:50%;background:conic-gradient(var(--green) calc(var(--value)*1%),#e6efeb 0);position:relative}.manabiya-app .progress-ring::after{content:"";position:absolute;width:104px;height:104px;background:#fff;border-radius:50%}.manabiya-app .progress-ring strong{position:relative;z-index:1;font-size:1.75rem}.manabiya-app .mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.manabiya-app .mini-stat{padding:12px;border-radius:14px;background:var(--wash);text-align:center}.manabiya-app .mini-stat strong{display:block;font-size:1.15rem}.manabiya-app .mini-stat span{font-size:.72rem;color:var(--muted)}.manabiya-app .section{padding:66px 0}.manabiya-app .section-white{background:#fff}.manabiya-app .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:28px}.manabiya-app .section-head h2{font-size:clamp(1.8rem,4vw,2.65rem);line-height:1.2;letter-spacing:-.045em;margin:5px 0}.manabiya-app .filter-bar{display:flex;gap:10px;flex-wrap:wrap}.manabiya-app .filter-bar input,.manabiya-app .filter-bar select,.manabiya-app .stack-form input,.manabiya-app .stack-form select,.manabiya-app .stack-form textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--ink);padding:12px 14px;font:inherit;outline:0}.manabiya-app .filter-bar input{min-width:230px}.manabiya-app .filter-bar input:focus,.manabiya-app .filter-bar select:focus,.manabiya-app .stack-form input:focus,.manabiya-app .stack-form select:focus,.manabiya-app .stack-form textarea:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(24,201,139,.12)}.manabiya-app .course-grid,.manabiya-app .lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.manabiya-app .course-card,.manabiya-app .lesson-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 4px 18px rgba(12,65,48,.04);transition:.22s}.manabiya-app .course-card:hover,.manabiya-app .lesson-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.manabiya-app .course-card{padding:24px;text-decoration:none}.manabiya-app .course-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--mint);font-weight:700;color:var(--deep)}.manabiya-app .course-card h3{margin:18px 0 5px}.manabiya-app .course-card p{margin:0;color:var(--muted);font-size:.9rem}.manabiya-app .lesson-card{overflow:hidden;display:flex;flex-direction:column}.manabiya-app .lesson-thumb{display:block;position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#d9f9ec,#e8f1ff);overflow:hidden}.manabiya-app .lesson-thumb img{width:100%;height:100%;object-fit:cover}.manabiya-app .lesson-thumb-placeholder{height:100%;display:grid;place-items:center;font-size:2.5rem;color:var(--deep)}.manabiya-app .badge-row{position:absolute;left:14px;top:14px;display:flex;gap:7px}.manabiya-app .badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;background:rgba(255,255,255,.94);font-size:.72rem;font-weight:700;box-shadow:0 4px 14px rgba(0,0,0,.08)}.manabiya-app .badge-free{background:var(--mint);color:var(--deep)}.manabiya-app .badge-slide{background:#eef0ff;color:#5857a8}.manabiya-app .lesson-body{padding:21px;display:flex;flex-direction:column;gap:10px;flex:1}.manabiya-app .lesson-body h3{font-size:1.08rem;line-height:1.45;margin:0;letter-spacing:-.02em}.manabiya-app .lesson-body p{font-size:.88rem;color:var(--muted);margin:0}.manabiya-app .lesson-meta{display:flex;justify-content:space-between;gap:10px;font-size:.77rem;color:var(--muted)}.manabiya-app .lesson-link{margin-top:auto;text-decoration:none;font-weight:700;font-size:.87rem;color:var(--deep)}.manabiya-app .progress-track{height:7px;border-radius:99px;background:#e6efeb;overflow:hidden}.manabiya-app .progress-track>span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--deep),var(--green))}.manabiya-app .empty-state{padding:60px 24px;border:1px dashed #bdd2ca;border-radius:var(--radius);text-align:center;color:var(--muted);background:#fff}.manabiya-app .site-footer{padding:40px 0;border-top:1px solid var(--line);background:#fff;color:var(--muted);font-size:.86rem}.manabiya-app .footer-inner{display:flex;justify-content:space-between;gap:24px}.manabiya-app .auth-page{min-height:100vh;background:radial-gradient(circle at 15% 20%,rgba(24,201,139,.22),transparent 35%),#f7fbf9}.manabiya-app .auth-shell{width:min(1080px,calc(100% - 32px));min-height:100vh;margin:auto;display:grid;grid-template-columns:1fr 460px;gap:70px;align-items:center;padding:50px 0}.manabiya-app .auth-copy h1{font-size:clamp(2.6rem,5vw,4.8rem);line-height:1.06;letter-spacing:-.06em;margin:18px 0}.manabiya-app .auth-copy>p:not(.eyebrow){max-width:560px;color:var(--muted);font-size:1.04rem}.manabiya-app .auth-benefits{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.manabiya-app .auth-benefits span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 13px;font-size:.82rem}.manabiya-app .auth-card{background:#fff;border:1px solid var(--line);border-radius:30px;padding:36px;box-shadow:var(--shadow)}.manabiya-app .auth-card h2{font-size:2rem;letter-spacing:-.04em;margin:8px 0}.manabiya-app .stack-form{display:grid;gap:18px;margin-top:26px}.manabiya-app .stack-form label{display:grid;gap:7px;font-weight:600;font-size:.86rem}.manabiya-app .alert{padding:12px 15px;border-radius:14px;margin:18px 0;font-size:.87rem}.manabiya-app .alert-error{background:#fff1f2;color:var(--danger);border:1px solid #ffd7dc}.manabiya-app .alert-success{background:var(--mint);color:var(--deep);border:1px solid #b8efd9}.manabiya-app .back-link{display:block;text-align:center;margin-top:22px;color:var(--muted);font-size:.85rem}.manabiya-app .lesson-hero{padding:52px 0 36px;background:#fff;border-bottom:1px solid var(--line)}.manabiya-app .breadcrumb{font-size:.82rem;color:var(--muted);margin-bottom:22px}.manabiya-app .breadcrumb a{text-decoration:none}.manabiya-app .lesson-heading{display:grid;grid-template-columns:1fr auto;gap:34px;align-items:end}.manabiya-app .lesson-heading h1{font-size:clamp(2rem,5vw,3.8rem);line-height:1.12;letter-spacing:-.052em;margin:8px 0 15px}.manabiya-app .lesson-heading p{max-width:780px;color:var(--muted)}.manabiya-app .lesson-shell{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:30px;padding:38px 0 70px;align-items:start}.manabiya-app .lesson-content,.manabiya-app .lesson-sidebar-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 4px 18px rgba(12,65,48,.04)}.manabiya-app .lesson-content{padding:clamp(24px,5vw,52px);font-size:1rem}.manabiya-app .lesson-content h2{font-size:1.75rem;line-height:1.35;letter-spacing:-.035em;margin:2.2em 0 .8em}.manabiya-app .lesson-content h3{font-size:1.3rem;margin:1.8em 0 .7em}.manabiya-app .lesson-content img,.manabiya-app .lesson-content video,.manabiya-app .lesson-content iframe{max-width:100%;height:auto;border-radius:16px}.manabiya-app .lesson-content table{width:100%;border-collapse:collapse;display:block;overflow:auto}.manabiya-app .lesson-content th,.manabiya-app .lesson-content td{border:1px solid var(--line);padding:10px 12px}.manabiya-app .lesson-sidebar{position:sticky;top:94px;display:grid;gap:14px}.manabiya-app .lesson-sidebar-card{padding:19px}.manabiya-app .lesson-sidebar-card h3{font-size:.95rem;margin:0 0 12px}.manabiya-app .lesson-sidebar-card ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.manabiya-app .lesson-sidebar-card a{text-decoration:none;color:var(--muted);font-size:.84rem}.manabiya-app .slide-viewer{padding:0;overflow:hidden}.manabiya-app .slides{min-height:480px}.manabiya-app .lesson-slide{display:none;padding:clamp(24px,5vw,52px)}.manabiya-app .lesson-slide.is-active{display:block;animation:slideIn .22s ease-out}.manabiya-app .slide-controls{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 20px;border-top:1px solid var(--line);background:#fbfdfc}.manabiya-app .slide-counter{font-size:.82rem;color:var(--muted)}@keyframes slideIn{from{opacity:.3;transform:translateX(14px)}to{opacity:1;transform:none}}.manabiya-app .notification-button{white-space:nowrap}.manabiya-app .admin-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.manabiya-app .admin-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.manabiya-app .data-table{width:100%;border-collapse:collapse}.manabiya-app .data-table th,.manabiya-app .data-table td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line);font-size:.85rem}.manabiya-app .data-table th{color:var(--muted)}.manabiya-app .admin-two-column{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}@media(max-width:900px){.manabiya-app .hero-grid,.manabiya-app .lesson-shell,.manabiya-app .auth-shell,.manabiya-app .admin-two-column{grid-template-columns:1fr}.manabiya-app .hero-panel{max-width:540px}.manabiya-app .auth-copy{padding-top:25px}.manabiya-app .course-grid,.manabiya-app .lesson-grid{grid-template-columns:repeat(2,1fr)}.manabiya-app .lesson-sidebar{position:static}.manabiya-app .admin-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.manabiya-app .container{width:min(100% - 24px,1180px)}.manabiya-app .site-nav>a{display:none}.manabiya-app .header-inner{min-height:64px}.manabiya-app .member-chip span{display:none}.manabiya-app .hero{padding:60px 0 48px}.manabiya-app .hero h1{font-size:2.7rem}.manabiya-app .section{padding:48px 0}.manabiya-app .section-head,.manabiya-app .footer-inner{align-items:start;flex-direction:column}.manabiya-app .course-grid,.manabiya-app .lesson-grid{grid-template-columns:1fr}.manabiya-app .auth-shell{padding:28px 0}.manabiya-app .auth-copy h1{font-size:2.8rem}.manabiya-app .auth-card{padding:26px 20px}.manabiya-app .lesson-heading{grid-template-columns:1fr}.manabiya-app .lesson-content{padding:25px 20px}.manabiya-app .slide-controls .button{padding:10px 14px}.manabiya-app .admin-grid{grid-template-columns:1fr}.manabiya-app .filter-bar,.manabiya-app .filter-bar input,.manabiya-app .filter-bar select{width:100%}}@media(prefers-reduced-motion:reduce){.manabiya-app,.manabiya-app *{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
/* WP版追補: ログイン画面のbody直下クラス対応 */
.manabiya-app.auth-page{min-height:100vh;background:radial-gradient(circle at 15% 20%,rgba(24,201,139,.22),transparent 35%),#f7fbf9}
/* シンプル連番カード(一覧:サムネなし・連番タイトル・開放状態のみ) */
.manabiya-app .lesson-cards-simple{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:640px){.manabiya-app .lesson-cards-simple{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.manabiya-app .lesson-cards-simple{grid-template-columns:repeat(3,1fr)}}
.manabiya-app .lesson-card-simple{display:flex;flex-direction:column;align-items:flex-start;gap:12px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:0 10px 30px rgba(12,65,48,.08)}
.manabiya-app .lesson-card-simple .card-num{font-size:1.3rem;font-weight:700;letter-spacing:-.02em}
.manabiya-app .lesson-card-simple .card-status{font-size:.82rem;font-weight:600;border-radius:999px;padding:4px 12px}
.manabiya-app .lesson-card-simple .card-status.open{background:var(--mint);color:var(--deep)}
.manabiya-app .lesson-card-simple .card-status.locked{background:#f1f3f2;color:var(--muted)}
.manabiya-app .lesson-card-simple.is-locked{background:#fafbfa;border-style:dashed}
.manabiya-app .lesson-card-simple .button-wide{align-self:stretch;text-align:center}
/* レッスン本文タイポグラフィ(ブロックエディタ内容を読みやすく) */
.manabiya-app .lesson-content{font-size:1.02rem;line-height:2;color:var(--ink)}
/* h2/h3の装飾はテーマ(tuuhan)のデザインに任せ、ここでは余白だけ設定 */
.manabiya-app .lesson-content h2{margin:2.6em 0 .9em;line-height:1.5}
.manabiya-app .lesson-content h3{margin:2em 0 .7em;line-height:1.5}
.manabiya-app .lesson-content p{margin:1.2em 0}
.manabiya-app .lesson-content ul,.manabiya-app .lesson-content ol{margin:1.2em 0;padding-left:1.6em;display:grid;gap:.5em}
.manabiya-app .lesson-content pre{background:#0f231c;color:#d9f9ec;border-radius:14px;padding:18px 20px;margin:1.4em 0;overflow-x:auto;font-size:.9rem;line-height:1.8;white-space:pre-wrap;word-break:break-all}
.manabiya-app .lesson-content blockquote{margin:1.4em 0;padding:14px 18px;border-left:4px solid var(--green);background:var(--wash);border-radius:0 12px 12px 0}
.manabiya-app .lesson-content img{max-width:100%;height:auto;border-radius:14px}
.manabiya-app .lesson-content figure{margin:1.4em 0}
.manabiya-app .lesson-hero-thumb{margin:28px 0 0}
.manabiya-app .lesson-hero-thumb img{width:100%;max-width:820px;height:auto;border-radius:20px;box-shadow:var(--shadow)}
/* フォーム入力欄を角丸モダンに */
.manabiya-app .stack-form input[type="text"],.manabiya-app .stack-form input[type="email"],.manabiya-app .stack-form input[type="password"],.manabiya-app .stack-form input[type="search"]{width:100%;padding:13px 16px;border:1.5px solid var(--line);border-radius:14px;font-size:.95rem;background:#fbfdfc;transition:border-color .15s,box-shadow .15s;outline:none}
.manabiya-app .stack-form input:focus{border-color:var(--green);background:#fff;box-shadow:0 0 0 4px rgba(24,201,139,.15)}
.manabiya-app .stack-form input::placeholder{color:#9fb0a9}
/* 本文内目次ボックス */
.manabiya-app .lesson-toc-box{background:var(--wash);border:1px solid var(--line);border-radius:16px;padding:20px 26px;margin:0 0 30px}
.manabiya-app .lesson-toc-box .toc-title{margin:0 0 10px;font-weight:700;font-size:1.05rem;color:var(--deep);letter-spacing:.05em}
.manabiya-app .lesson-toc-box ol{margin:0;padding-left:1.4em;display:grid;gap:6px}
.manabiya-app .lesson-toc-box a{color:var(--ink);text-decoration:none;font-size:.95rem}
.manabiya-app .lesson-toc-box a:hover{color:var(--deep);text-decoration:underline}
/* 目次の階層インデント(h2〜h4) */
.manabiya-app .toc-lv3{margin-left:1.2em;font-size:.93em}
.manabiya-app .toc-lv4{margin-left:2.4em;font-size:.88em;color:var(--muted)}
/* レッスンサイドバーのウィジェット */
.manabiya-app .lesson-widgets .sidebar-widget{margin:0 0 16px}
.manabiya-app .lesson-widgets .widget-title{font-size:1.05rem;font-weight:700;margin:0 0 10px;color:var(--deep)}
/* フッターウィジェット */
.manabiya-app .footer-widgets{background:#fff;border-top:1px solid var(--line);padding:40px 0}
.manabiya-app .footer-widgets-inner{display:grid;grid-template-columns:1fr;gap:30px}
@media(min-width:768px){.manabiya-app .footer-widgets-inner{grid-template-columns:repeat(3,1fr)}}
.manabiya-app .footer-widget-col .widget-title{font-size:1.05rem;font-weight:700;margin:0 0 12px;color:var(--deep)}
/* 目次の現在地ハイライト */
.manabiya-app .lesson-toc-box a.is-active,.manabiya-app .lesson-sidebar-card a.is-active{color:var(--deep);font-weight:700;border-left:3px solid var(--green);padding-left:8px;margin-left:-11px}
.manabiya-app .lesson-toc-box li,.manabiya-app .lesson-sidebar-card li{transition:all .15s}