:root{--ink:#243e39;--muted:#73827b;--green:#27634f;--line:#e4e9e3;--bg:#f7f8f4}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:Arial,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;font-size:14px;line-height:1.8}a{color:var(--green);text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:8px;padding:10px 18px}button:hover{background:#edf3ed}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline-offset:3px;outline:3px solid #ba8738}.shell{min-height:100vh;display:flex}aside{border-right:1px solid var(--line);background:#fff;flex-direction:column;flex-shrink:0;width:252px;height:100vh;padding:35px 22px;display:flex;position:sticky;top:0}.brand{letter-spacing:.04em;white-space:nowrap;font-size:19px;font-weight:700;display:block}.brand small{color:var(--muted);letter-spacing:.15em;margin-left:25px;font-size:10px;display:block}.nav-label{letter-spacing:.15em;color:#9baba0;margin:46px 15px 12px;font-size:10px}nav{gap:8px;display:grid}nav button{text-align:left;color:#76847d;background:0 0;border:0;padding:12px 16px}nav button span{vertical-align:middle;width:30px;font-size:20px;display:inline-block}nav button.active{color:var(--green);background:#eaf2eb;font-weight:700}.sidebar-note{background:#f5f6ef;border-radius:10px;margin-top:auto;padding:20px 16px}.sidebar-note>span{letter-spacing:.12em;color:#8b9876;font-size:8px}.sidebar-note h3{font-size:15px}.sidebar-note p{color:var(--muted);font-size:11px}.sidebar-note button{background:0 0;padding:6px 10px;font-size:11px}.logout{color:var(--muted);border:0;margin-top:15px;font-size:12px}.workspace{flex:1;min-width:0}header{border-bottom:1px solid var(--line);height:80px;color:var(--muted);background:#fff;justify-content:space-between;align-items:center;padding:0 48px;font-size:12px;display:flex}.header-slash{color:#c5cec6;padding:0 16px}.user{align-items:center;gap:9px;display:flex}.user i{width:32px;height:32px;color:var(--green);background:#e8eee3;border-radius:50%;place-items:center;font-style:normal;display:grid}.content{max-width:1180px;margin:auto;padding:35px 48px}.page-heading{justify-content:space-between;align-items:center;margin-bottom:29px;display:flex}.eyebrow{letter-spacing:.16em;color:#83927c;margin:0 0 10px;font-size:10px;font-weight:700}h1{letter-spacing:.04em;margin:0 0 10px;font-size:29px;font-weight:600;line-height:1.5}h2{letter-spacing:.025em;font-size:22px;line-height:1.6}h3{font-size:17px}.muted{color:var(--muted);font-size:13px}.date{letter-spacing:.08em;text-align:right;white-space:nowrap;font-size:12px}.date small{color:var(--muted);font-size:9px;display:block}.hero{background:#edf2e7;border:1px solid #dce5d7;border-radius:14px;justify-content:space-between;min-height:310px;padding:38px 40px;display:flex;overflow:hidden}.pill{letter-spacing:.08em;color:#667c5d;background:#fff9;border-radius:30px;padding:5px 11px;font-size:10px;display:inline-block}.hero h2{margin:20px 0 12px;font-size:27px}.hero p{white-space:pre-line;color:#64765f;font-size:13px}.primary{background:var(--green);border-color:var(--green);color:#fff;padding:12px 24px}.primary:hover{background:#1e4d3f}.primary span{margin-left:25px}.hero-foot{margin-bottom:0;font-size:10px!important}.hero-art{place-items:center;width:230px;min-width:180px;display:grid;position:relative}.art-card{background:#fafbf1;border:1px solid #d6ddc7;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;width:145px;height:185px;display:flex;transform:rotate(10deg);box-shadow:9px 12px #d9e2cf66}.art-card span{color:#84926b;font-size:10px}.art-card b{color:#97a87e;font:80px Georgia}.art-card small{letter-spacing:.08em;color:#84926b;font-size:6px}.orbit{border:1px solid #d2decb;border-radius:50%;width:230px;height:230px;position:absolute}.spark{color:#acb68a;font-size:46px;position:absolute;top:5px;right:0}.grid{grid-template-columns:1fr 1fr;gap:22px;margin-top:24px;display:grid}.card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:30px}.grid .card h2{font-size:19px}.section-top{align-items:center;gap:12px;display:flex}.section-top .eyebrow{margin:0}.tile-icon{color:#7e9060;background:#f0f4e9;border-radius:10px;place-items:center;width:34px;height:34px;font-size:20px;display:grid}.question-card{background:#fffefa}.question-card .tile-icon{color:#b69a60;background:#f6efdf}.progress{background:#edf0e9;border-radius:5px;height:5px;margin-top:20px;overflow:hidden}.progress span{background:#809d67;height:100%;display:block}.text-button{color:var(--green);background:0 0;border:0;padding:8px 0;font-size:12px;font-weight:700}.gentle-note{text-align:center;color:#8d967e;margin:32px 0;font-size:11px}footer{border-top:1px solid var(--line);color:#99a196;justify-content:space-between;margin-top:34px;padding:22px 0;font-size:10px;display:flex}.demo-banner{color:#816635;background:#fff3d8;border-radius:7px;margin-bottom:20px;padding:8px 14px;font-size:12px}.error{color:#a2362c;background:#fff0ef;border-radius:6px;margin-bottom:18px;padding:12px}.setting{align-items:center;gap:8px;margin-bottom:18px;font-size:12px;display:flex}.quiz{max-width:850px}.intro{background:#f5f7f0;border-radius:8px;padding:22px;line-height:2}.quiz fieldset{border:0;gap:12px;padding:0;display:grid}.option{border:1px solid var(--line);cursor:pointer;border-radius:8px;align-items:center;gap:12px;padding:16px;display:flex}.option:has(input:checked){border-color:var(--green);background:#f3f7ef}.option.correct{background:#eef5e9;border-color:#56815c}.option strong{white-space:nowrap;margin-left:auto;font-size:12px}.choice-letter{color:#819273;font:18px Georgia}.quiz-actions{gap:12px;margin-top:24px;display:flex}.result{white-space:pre-line;background:#f0f5eb;border-radius:8px;margin-top:24px;padding:24px}.result p{line-height:2}.empty{color:var(--muted);padding:35px 0}details{border-top:1px solid var(--line);padding:18px 0}summary{cursor:pointer;align-items:center;gap:20px;display:flex}summary span{color:var(--muted);font-size:12px}summary b{flex:1}.check-item{border-bottom:1px solid var(--line);align-items:flex-start;gap:16px;padding:24px 0;display:flex}input[type=checkbox],input[type=radio]{accent-color:var(--green);flex-shrink:0;width:18px;height:18px}.check-item small{color:var(--muted);margin-top:6px;display:block}.question-form{max-width:780px}form label{margin:20px 0 8px;font-size:13px;font-weight:700;display:block}input:not([type=checkbox]):not([type=radio]),textarea,select{width:100%;color:var(--ink);background:#fff;border:1px solid #ccd6ca;border-radius:7px;margin-top:8px;padding:12px;display:block}textarea{resize:vertical}.question-form .primary{margin-top:24px}.login{flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:35px 20px;display:flex}.login-card{width:100%;max-width:490px;margin:28px 0}.login-card h1{font-size:24px}.login-card .primary{width:100%}.login-card>a{font-size:12px}.sr-only{clip:rect(0, 0, 0, 0);width:1px;height:1px;position:absolute;overflow:hidden}@media (min-width:1500px){.content{padding-top:50px}.hero{padding:45px}}@media (max-width:1050px){aside{width:210px;padding:28px 14px}.brand{font-size:16px}.content,.hero{padding:28px}.hero-art{width:180px}.hero h2{font-size:23px}header{padding:0 28px}.page-heading h1{font-size:25px}}@media (max-width:760px){.shell{display:block}aside{border-right:0;border-bottom:1px solid var(--line);width:100%;height:auto;padding:18px 20px;position:static}.brand small{margin-left:10px;font-size:8px;display:inline}.nav-label,.sidebar-note,.logout{display:none}nav{gap:5px;margin-top:16px;display:flex;overflow:auto}nav button{flex-shrink:0;padding:8px 10px;font-size:11px}nav button span{width:21px;font-size:16px}header{height:56px;padding:0 20px;font-size:10px}.user{font-size:10px}.user i{display:none}.header-slash{padding:0 5px}.content{padding:24px 18px}.page-heading{align-items:flex-start;gap:10px}.page-heading h1{font-size:23px}.eyebrow{font-size:8px}.date{font-size:9px}.page-heading .muted{font-size:11px}.hero{min-height:0;padding:26px 24px}.hero-art{display:none}.hero h2{font-size:24px}.grid{grid-template-columns:1fr;gap:16px}.card{padding:24px 20px}h2{font-size:20px}.gentle-note{font-size:10px}.option{gap:8px;padding:13px 10px;font-size:13px}.quiz-actions{flex-wrap:wrap}summary{flex-wrap:wrap;gap:10px}footer span{display:none}.login .brand{font-size:18px}}.header-account{align-items:center;gap:12px;display:flex}.mobile-logout{display:none}@media (max-width:760px){.page-heading{display:block}.date{text-align:left;margin-top:12px;display:block}.date small{margin-left:8px;display:inline}.mobile-logout{padding:5px 6px;font-size:10px;display:block}.header-account{gap:8px}header{flex-wrap:wrap;gap:5px;height:auto;min-height:56px;padding-top:10px;padding-bottom:10px}}