@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Noto+Sans+JP:wght@400;500;600;700&display=swap";:root{color:#282725;font-synthesis:none;--red:#b8433d;--red-dark:#97342f;--ink:#282725;--muted:#77736c;--paper:#f7f2e8;--card:#fffdfa;--line:#dfd8cc;--soft:#eee7db;--green:#567865;--shadow:0 12px 35px #4c381e14;background:#eae4d9;font-family:DM Sans,Noto Sans JP,sans-serif}*{box-sizing:border-box}body{background:linear-gradient(90deg,#e9e3d8,#f2ede4 45%,#e9e3d8);min-width:320px;min-height:100vh;margin:0}button{font:inherit;color:inherit}button:not(:disabled){cursor:pointer}main{background:var(--paper);max-width:720px;min-height:100vh;margin:0 auto;padding-bottom:88px;box-shadow:0 0 50px #3c2c181a}.topbar{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);z-index:10;background:#f9f6efe6;border-bottom:1px solid #c7beb0b3;justify-content:space-between;align-items:center;height:72px;padding:11px 18px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:10px;display:flex}.seal{background:var(--red);color:#fff;border-radius:13px;place-items:center;width:42px;height:42px;font:700 23px Noto Sans JP;display:grid;box-shadow:0 4px 12px #b8433d33}.brand>div{flex-direction:column;display:flex}.brand strong{letter-spacing:-.2px;font-size:16px}.brand small{color:var(--muted);margin-top:1px;font-size:9.5px}.header-stats{gap:7px;display:flex}.header-stats span{border:1px solid var(--line);white-space:nowrap;background:#fff;border-radius:20px;align-items:center;gap:4px;padding:6px 8px;font-size:11px;font-weight:700;display:flex}.header-stats svg{width:13px;height:13px}.page{padding:28px 18px 34px}.eyebrow{letter-spacing:1.6px;color:#8d887f;font-size:9px;font-weight:800}.eyebrow.red{color:var(--red)}h1,h2,h3,p{margin-top:0}.page>h1{margin:7px 0 4px;font:700 29px Noto Sans 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div:not(.icon-soft){flex-direction:column;display:flex}.dashboard-card strong{font-size:18px}.dashboard-card div span{color:var(--muted);font-size:9px}.dashboard-card b{color:var(--red);margin-top:11px;font-size:10px;display:block}.section-heading{margin:27px 3px 11px}.section-heading h2{margin:4px 0;font-size:18px}.weak-list{border:1px solid var(--line);background:var(--card);border-radius:18px;overflow:hidden}.weak-list>div{border-bottom:1px solid #eee8df;grid-template-columns:50px 1fr 55px;align-items:center;gap:10px;padding:13px 15px;display:grid}.weak-list>div:last-child{border-bottom:0}.weak-jp{font:600 22px Noto Sans JP}.weak-list strong,.weak-list span{display:block}.weak-list strong{font-size:12px}.weak-list span{color:var(--muted);margin-top:2px;font-size:9px}.weak-bar{background:#ebe6de;border-radius:5px;height:4px;overflow:hidden}.weak-bar i{background:var(--red);height:100%;display:block}.explain-grid{grid-template-columns:1fr 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i{background:var(--red);border-radius:10px;height:100%;display:block}.question{text-align:center;padding:48px 8px 38px}.question h2{margin:15px auto 10px;font-size:29px;line-height:1.25}.question h2.question-jp{font:700 42px Noto Sans JP}.question p{color:var(--muted);margin:0;font-size:11px}.learning-card>.primary{width:100%}.answer-panel{text-align:center;background:#f4efe6;border:1px solid #e7dfd2;border-radius:17px;margin:4px 0 13px;padding:22px}.answer-jp{margin-bottom:7px;font:700 39px Noto Sans JP}.answer-panel strong,.answer-panel em,.answer-panel span,.answer-panel small{display:block}.answer-panel strong{font-size:17px}.answer-panel em{color:#69665f;margin-top:3px;font-size:13px;font-style:normal}.answer-panel .translation{color:var(--red);margin-top:12px;font-size:11px;font-weight:700}.answer-panel small{color:var(--muted);max-width:320px;margin:8px auto 0;font-size:9px;line-height:1.4}.how{text-align:center;margin:12px 0 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var(--line);text-align:center;box-shadow:var(--shadow);border-radius:23px;padding:23px 18px}.story-jp{padding:35px 0 16px;font:700 35px Noto Sans JP}.story-help strong,.story-help em{display:block}.story-help strong{font-size:14px}.story-help em{color:var(--muted);font-size:11px;font-style:normal}.story-help p{color:var(--red);margin:13px 0;font-size:12px;font-weight:600}.text-button{color:var(--muted);background:0 0;border:0;align-items:center;gap:4px;margin:10px auto 0;font-size:9px;display:flex}.text-button svg{width:12px}.story-nav{grid-template-columns:1fr 1.3fr;gap:9px;margin-top:12px;display:grid}.story-nav button{border:1px solid var(--line);background:#fff;border-radius:12px;justify-content:center;align-items:center;gap:5px;padding:12px;font-size:10px;font-weight:700;display:flex}.story-nav button.primary{background:var(--red);border-color:var(--red)}.story-nav svg{width:13px}.story-nav button:disabled{opacity:.4}@media (width>=600px){.page{padding-left:28px;padding-right:28px}.today-card{padding:26px}.dashboard-grid{gap:14px}.learning-card{padding:25px}.question{padding-top:65px;padding-bottom:50px}}