@import"https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700;800&family=Zen+Old+Mincho:wght@600;700&display=swap";:root{font-family:Noto Sans JP,sans-serif;color:#183047;background:#f4f7fa;font-synthesis:none;--navy:#123c69;--blue:#2b6597;--gold:#e9a93f;--paper:#fff;--muted:#657586;--line:#dbe4ec}*{box-sizing:border-box}body{margin:0;min-width:320px;background:linear-gradient(180deg,#edf3f8 0,#f8fafc 250px);color:#183047}a{color:inherit;text-decoration:none}button,input{font:inherit}.app-shell{min-height:100vh;padding-bottom:82px}.topbar{height:72px;padding:0 max(20px,calc((100vw - 760px)/2));display:flex;align-items:center;gap:12px;background:#ffffffe6;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:Zen Old Mincho;font-size:22px}.topbar>div:last-child{display:flex;flex-direction:column}.topbar strong{font-family:Zen Old Mincho;font-size:18px}.topbar span{font-size:11px;color:var(--muted)}main{max-width:760px;margin:auto}.page{padding:28px 20px 50px}.welcome{padding:18px 4px 22px}.eyebrow{margin:0 0 8px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.welcome h1,.page-heading h1,.lesson-header h1{font-family:Zen Old Mincho;font-size:clamp(28px,7vw,40px);line-height:1.45;letter-spacing:.01em;margin:0 0 12px;color:#102f4c}.welcome>p:last-child,.page-heading>p:last-child,.lesson-header>p{color:var(--muted);line-height:1.8;margin:0}.continue-card{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;background:var(--navy);color:#fff;border-radius:20px;padding:20px;box-shadow:0 12px 30px #123c6928}.continue-card .icon-disc{width:46px;height:46px;border-radius:14px;background:#ffffff20;display:grid;place-items:center}.continue-card div:nth-child(2){display:flex;flex-direction:column;gap:3px}.continue-card small{color:#bcd3e8}.continue-card strong{line-height:1.45}.continue-card span{font-size:12px;color:#d8e5ef}.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:16px 0 34px}.quick-grid a{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;display:grid;grid-template-columns:auto 1fr;gap:5px 9px}.quick-grid svg{grid-row:1/3;color:var(--blue)}.quick-grid strong{font-size:14px}.quick-grid span{color:var(--muted);font-size:13px}.section-heading{display:flex;align-items:center;justify-content:space-between}.section-heading h2{font-family:Zen Old Mincho;margin:0}.section-heading a{display:flex;align-items:center;gap:4px;color:var(--blue);font-size:13px;font-weight:700}.section-copy{color:var(--muted);line-height:1.7}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:74px;padding-bottom:env(safe-area-inset-bottom);display:flex;justify-content:center;background:#fffffff2;border-top:1px solid var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);z-index:10}.bottom-nav a{width:min(20%,110px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:#7b8996;font-size:11px;font-weight:600}.bottom-nav a.active{color:var(--navy)}.page-heading{margin-bottom:28px}.page-heading h1{font-size:32px}.domain-list{display:grid;gap:14px}.domain-card{display:grid;grid-template-columns:48px 1fr;gap:12px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.domain-number{font-family:Zen Old Mincho;font-size:24px;color:var(--gold)}.domain-body h2{margin:0;font-size:18px}.domain-body>p{margin:4px 0 12px;color:var(--muted);font-size:13px}.domain-body>a{border-top:1px solid var(--line);padding:13px 0;display:flex;align-items:center;justify-content:space-between;gap:10px}.domain-body>a div{display:flex;flex-direction:column;gap:4px}.domain-body>a span{font-size:11px;color:var(--blue)}.lesson-header{padding-bottom:22px;border-bottom:1px solid var(--line)}.lesson-header h1{font-size:32px}.draft-badge{display:inline-block;background:#fff2d8;color:#805000;border:1px solid #f1ce86;border-radius:99px;padding:5px 9px;font-size:12px;font-weight:700;margin-bottom:14px}.meta{display:flex;align-items:center;gap:6px;margin-top:12px;font-size:13px;color:var(--muted)}.markdown{font-size:16px;line-height:2;color:#263b4e}.markdown h2{font-family:Zen Old Mincho;font-size:24px;line-height:1.55;color:#143854;margin:42px 0 12px;padding-left:13px;border-left:4px solid var(--gold)}.markdown img{display:block;max-width:100%;margin:24px auto;border-radius:12px;background:#fff}.markdown table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px;background:#fff}.markdown th,.markdown td{border:1px solid var(--line);padding:10px;text-align:left}.markdown th{background:#eaf1f7}.key-points{background:#eaf2f8;border-radius:18px;padding:20px;margin:30px 0}.key-points h2{font-family:Zen Old Mincho;margin:0 0 10px}.key-points li{margin:8px 0;line-height:1.7}.primary-button{width:100%;min-height:54px;border:0;border-radius:14px;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:800;cursor:pointer}.primary-button:disabled{opacity:.4}.quiz-page header h1{font-family:Zen Old Mincho;font-size:25px;line-height:1.6}.progress-bar{height:5px;background:#dce5ed;border-radius:99px;overflow:hidden}.progress-bar span{display:block;height:100%;background:var(--gold)}.choices{display:grid;gap:10px;margin:24px 0}.choices button{display:flex;align-items:center;gap:12px;padding:15px;text-align:left;border:1px solid var(--line);border-radius:14px;background:#fff;color:#253a4d}.choices button>span{min-width:32px;height:32px;border-radius:50%;background:#edf2f6;display:grid;place-items:center;font-weight:800}.choices button.selected{border:2px solid var(--blue);background:#eef6fc}.feedback{padding:20px;border-radius:16px;margin-top:18px}.feedback.correct{background:#e8f6ef}.feedback.wrong{background:#fff0ed}.feedback h2{display:flex;align-items:center;gap:8px}.feedback p{white-space:pre-line;line-height:1.8}.feedback .primary-button{margin-top:18px}.empty-card{background:#fff;border:1px dashed #bdcbd7;border-radius:18px;padding:32px;text-align:center;color:var(--muted)}.empty-card svg{color:var(--blue)}.empty-card h2{color:#183047;font-family:Zen Old Mincho}.empty-card a{display:inline-block;color:var(--blue);font-weight:700;margin-top:8px}.review-list,.topic-list{display:grid;gap:12px}.review-list a,.topic-list a{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px;display:flex;flex-direction:column;gap:6px}.review-list small,.topic-list small{color:var(--blue);font-weight:700}.topic-list a{flex-direction:row;align-items:center;justify-content:space-between}.topic-list a div{display:flex;flex-direction:column;gap:7px}.topic-list p{margin:0;color:var(--muted);line-height:1.6}.settings-card{display:grid;grid-template-columns:auto 1fr;gap:14px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:17px;margin:14px 0}.settings-card>svg{color:var(--blue)}.settings-card h2{margin:0;font-size:17px}.settings-card p{color:var(--muted);font-size:13px;line-height:1.7}.settings-card input{width:100%;padding:13px;border:1px solid #b8c7d3;border-radius:10px;margin:8px 0}.settings-card button{border:0;background:var(--navy);color:#fff;padding:11px 14px;border-radius:10px;font-weight:700}.notice{background:#e9f4fb;border-radius:12px;padding:13px}.transfer-code{display:flex;align-items:center;justify-content:space-between;margin-top:10px;padding:12px;background:#eef3f7;border-radius:10px;letter-spacing:.16em}.transfer-code button{padding:8px}.device-id{text-align:center;color:#87939e;font-size:11px}.loading{padding:80px;text-align:center;color:var(--muted)}@media(min-width:720px){.page{padding:40px 24px 70px}.home-page{padding-top:34px}.domain-card{grid-template-columns:70px 1fr;padding:24px}.domain-number{font-size:32px}}.lock-card{max-width:560px;margin:30px auto;background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;text-align:center;box-shadow:0 14px 40px #123c6912}.lock-icon{width:62px;height:62px;margin:0 auto 18px;border-radius:20px;background:#eef3f7;color:var(--navy);display:grid;place-items:center}.lock-card h1{font-family:Zen Old Mincho;font-size:28px;line-height:1.5}.lock-card>p{color:var(--muted);line-height:1.8}.lock-card .eyebrow{color:var(--gold)}.lock-copy{border-top:1px solid var(--line);padding-top:18px;margin-top:20px}.lock-card .primary-button{margin-top:22px}.settings-link{display:inline-flex;margin-top:8px;border:1px solid var(--navy);color:var(--navy);padding:10px 14px;border-radius:10px;font-weight:700}.admin-entry{text-align:center;margin:24px 0}.admin-entry a{color:var(--blue);font-size:13px;font-weight:700}.admin-login{display:grid;grid-template-columns:auto 1fr;gap:16px;max-width:520px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px}.admin-login>svg{color:var(--blue)}.admin-login h2{margin:0}.admin-login p{color:var(--muted);line-height:1.6}.admin-login input{width:100%;padding:12px;border:1px solid #b8c7d3;border-radius:10px}.admin-login button,.admin-toolbar button{border:0;border-radius:10px;background:var(--navy);color:#fff;padding:11px 14px;font-weight:700}.admin-login button{width:100%;margin-top:10px}.admin-error{color:#a33225!important;font-weight:700}.admin-toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;color:var(--muted)}.admin-toolbar button{display:flex;align-items:center;gap:6px;padding:8px 12px}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px}.metric-grid>div{display:grid;grid-template-columns:auto 1fr;gap:4px 9px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:16px}.metric-grid svg{grid-row:1 / 3;color:var(--blue)}.metric-grid span{color:var(--muted);font-size:13px}.metric-grid strong{font-size:24px}.admin-panel{margin:14px 0;padding:20px;background:#fff;border:1px solid var(--line);border-radius:17px}.admin-panel h2{margin:0 0 16px;font-family:Zen Old Mincho;font-size:20px}.admin-panel h2 small{font-family:Noto Sans JP;color:var(--muted);font-size:11px;font-weight:500}.funnel-bars{display:grid;gap:10px}.funnel-bars>div{display:grid;grid-template-columns:88px 1fr 32px;align-items:center;gap:8px;font-size:13px}.funnel-bars>div>div{height:9px;border-radius:99px;background:#e7edf2;overflow:hidden}.funnel-bars i{display:block;height:100%;background:var(--blue);border-radius:inherit}.table-wrap{overflow-x:auto}.admin-panel table{width:100%;border-collapse:collapse;font-size:13px}.admin-panel th,.admin-panel td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}.admin-panel th:first-child,.admin-panel td:first-child{text-align:left}.admin-panel th{color:var(--muted);font-weight:600}.attention{color:#a76400;font-weight:800}.admin-note,.admin-empty{color:var(--muted);font-size:13px}@media(min-width:720px){.metric-grid{grid-template-columns:repeat(4,1fr)}}