*{box-sizing:border-box} :root{font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif;color:#172b27;background:#f4f6f2;font-synthesis:none}body{margin:0;padding-bottom:88px}.topbar{background:#173b35;color:white;padding:22px 20px 18px;display:flex;align-items:center;justify-content:space-between}.topbar h1{font-size:21px;margin:2px 0 0}.eyebrow{font-size:10px;letter-spacing:.14em;font-weight:700;opacity:.7;margin:0}.local-tag{font-size:11px;border:1px solid #ffffff66;border-radius:30px;padding:7px 10px}.screen{display:none;padding:20px;max-width:680px;margin:auto}.screen.active{display:block}.welcome{background:#e3ece4;border-radius:22px;padding:24px 20px;margin-bottom:16px}.welcome h2{font-size:25px;line-height:1.45;margin:12px 0}.welcome p:last-child{font-size:13px;color:#53655e;margin-bottom:0}.stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:14px 0}.stats article{background:white;border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:4px}.stats strong{font-size:27px}.stats span,.notice{font-size:12px;color:#66756e}.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.action{border:0;background:white;border-radius:16px;padding:17px 14px;text-align:left;color:#183b34;min-height:126px;display:flex;flex-direction:column;gap:7px}.action>span{font-size:22px}.action b{font-size:15px}.action small{font-size:11px;color:#718078}.primary{background:#1c5146!important;color:white!important;border:0!important}.action.primary small{color:#d5e5df}.notice{line-height:1.6;margin:18px 2px}.section-head{display:flex;align-items:center;gap:13px;margin:4px 0 20px}.section-head h2{font-size:23px;margin:3px 0}.back{border:0;background:white;border-radius:12px;width:42px;height:42px;font-size:20px}.panel{background:white;border-radius:18px;padding:18px;margin-bottom:15px}.panel h3{margin:0 0 10px;font-size:17px}.panel p{font-size:13px;line-height:1.65;color:#5e6d66}label{display:block;font-size:13px;font-weight:650;margin:0 0 15px}input:not([type=radio]):not([type=file]),textarea,select{display:block;width:100%;margin-top:7px;border:1px solid #d9e0da;border-radius:10px;padding:12px;font:inherit;font-size:15px;background:#fbfcfa;color:#172b27}textarea{resize:vertical}button{font:inherit;cursor:pointer}.full{width:100%;padding:14px;border-radius:11px;font-weight:700;margin-top:8px}.secondary{background:#eef2ed;border:0;color:#31463e}.question-list{display:grid;gap:10px}.question-card{background:white;padding:15px;border-radius:14px}.question-card p{font-size:14px;margin:0 0 10px;white-space:pre-wrap}.question-card .card-actions{display:flex;gap:8px}.card-actions button{border:0;border-radius:8px;padding:8px 12px;background:#edf2ed;font-size:12px}.card-actions .delete{color:#a33}.choice{display:flex;align-items:center;gap:9px;padding:10px 0}.choice input{accent-color:#1c5146}.quiz-meta{display:flex;justify-content:space-between;font-size:12px;color:#65746c}.progress-track{height:5px;background:#e9eee9;border-radius:8px;margin:12px 0 22px;overflow:hidden}.progress-track div{height:100%;width:0;background:#2d7967;transition:width .2s}.options{display:grid;gap:9px;margin:18px 0}.option{border:1px solid #dce4dd;background:#fbfcfa;border-radius:12px;padding:14px;text-align:left;display:flex;gap:10px;align-items:flex-start}.option:disabled{opacity:1}.option.correct{border-color:#348365;background:#e8f4ec}.option.incorrect{border-color:#c56d60;background:#fff0ed}.option .letter{font-weight:800;color:#397365}.feedback{padding:14px;border-radius:12px;background:#f0f4ef;font-size:13px;line-height:1.7;white-space:pre-wrap}.hidden{display:none!important}.file-button{display:block;text-align:center;padding:14px;background:#eef3ee;border-radius:11px;color:#214d41}.file-button input{display:block;margin:10px auto 0;max-width:100%}.small-message{font-size:12px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid #e4e9e4;display:flex;justify-content:space-around;padding:8px 4px max(8px,env(safe-area-inset-bottom));z-index:5}.bottom-nav button{border:0;background:transparent;color:#718078;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:20px;min-width:55px}.bottom-nav small{font-size:10px}.bottom-nav button.selected{color:#1c5146;font-weight:800}hr{border:0;border-top:1px solid #e8ece8;margin:20px 0}@media(min-width:600px){.screen{padding-top:28px}.welcome{padding:30px}.action{min-height:140px}}