@charset "UTF-8";
:root{font-family:"Segoe UI","Hiragino Kaku Gothic ProN","Meiryo",sans-serif;color:#163d37;background:#f5f5ee;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 90% 0,#e1ebda 0,transparent 50%);min-height:100vh}.game{max-width:760px;margin:auto;padding:32px 24px 24px}header{display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{font-weight:800;font-size:19px;color:inherit;text-decoration:none}.tag{font-size:11px;border:1px solid #bac8b7;border-radius:30px;padding:7px 12px}.intro{margin:54px 0 30px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:2px;color:#5f7665}h1{font-size:clamp(28px,5vw,42px);letter-spacing:.02em;margin:15px 0}.intro>p:last-child{color:#64746c;font-size:14px;line-height:1.8}.card{background:#fffef9;border:1px solid #dde3d5;border-radius:24px;padding:32px;box-shadow:0 12px 40px #29433208}.stats{display:flex;align-items:center;justify-content:space-between;font-size:11px;font-weight:700;letter-spacing:1px}.stats strong{font-size:25px;margin-left:6px;letter-spacing:0}.stats small{font-size:11px;color:#7a877c}progress{appearance:none;border:0;width:100%;height:5px;border-radius:5px;margin:18px 0 26px;background:#e9eddf}progress::-webkit-progress-bar{background:#e9eddf;border-radius:5px}progress::-webkit-progress-value{background:#59865e;border-radius:5px}progress::-moz-progress-bar{background:#59865e}.category{font-size:11px;color:#65805e;font-weight:700;letter-spacing:1px}h2{font-size:22px;line-height:1.7;margin:12px 0 24px;overflow-wrap:anywhere}.choices{display:grid;gap:12px}button{font:inherit;cursor:pointer;touch-action:manipulation}.choice{width:100%;display:flex;gap:16px;align-items:center;text-align:left;min-height:62px;background:#fffef9;border:1px solid #dce2d3;border-radius:12px;padding:12px 18px;color:#294a3f;font-size:15px}.letter{display:grid;place-items:center;border-radius:8px;width:30px;height:30px;flex-shrink:0;background:#eff1e7;font-size:12px;font-weight:800}.choice:hover:enabled{border-color:#608c60;background:#f5f8ef}.choice:disabled{cursor:default;opacity:1}.choice.correct{border-color:#46825c;background:#edf7ed}.choice.wrong{border-color:#c67c65;background:#fff0e8}.choice.wrong .letter{background:#f4d9cd}.choice.correct .letter{background:#d4eacf}.feedback{font-size:14px;line-height:1.8;margin-top:18px;color:#4c6557}.feedback:empty{margin:0}.primary{display:flex;justify-content:space-between;gap:20px;width:100%;border:0;background:#214f40;color:white;border-radius:12px;padding:17px 20px;margin-top:22px;font-size:14px;font-weight:700;min-height:54px}.primary:hover{background:#316750}:focus-visible{outline:3px solid #c18a26;outline-offset:4px}.result{text-align:center;padding:12px 0}.result-icon{font-size:48px;color:#a2883c}.result p{line-height:1.9}.result .primary{text-align:left}footer{text-align:center;font-size:11px;color:#7a8679;margin-top:24px;line-height:1.8}[hidden]{display:none!important}@media(max-width:480px){.game{padding:24px 16px}.brand{font-size:16px}.tag{font-size:10px;padding:6px 9px}.intro{margin:38px 0 24px}.eyebrow{font-size:9px;letter-spacing:1.4px}.card{padding:24px 20px;border-radius:20px}h2{font-size:19px}.choice{padding:12px;gap:12px}footer{font-size:10px}}