:root{color:#20312b;overflow-wrap:anywhere;--accent:#285843;--muted:#52645a;--border:#d6dfd6;background:#f7f8f5;font-family:system-ui,sans-serif;line-height:1.6}*{box-sizing:border-box}body{margin:0;font-size:1rem}main{max-width:40rem;margin-inline:auto;padding:1.5rem 1rem 3rem}p{margin-block:0 1rem}h1{letter-spacing:-.03em;margin-block:0 1.5rem;font-size:clamp(2rem,8vw,3.5rem);line-height:1.2}button{font:inherit;cursor:pointer;white-space:normal;border-radius:.8rem;max-width:100%;min-height:3rem;padding:.75rem 1rem;font-weight:600}button:disabled{cursor:default;color:#5a665f;background:#e6ebe6;border-color:#ccd5cc}:focus-visible{outline-offset:4px;outline:3px solid #a34814}h1:focus{outline:none}.primary{background:var(--accent);color:#fff;border:2px solid var(--accent);width:100%;display:block}.secondary,.reveal{color:var(--accent);border:1px solid var(--border);background:#fff}.text-button{color:var(--accent);background:0 0;border:0;text-decoration:underline}.brand{flex-wrap:wrap;justify-content:space-between;gap:.75rem;margin-bottom:1.5rem;font-weight:700;display:flex}.brand span:last-child{color:var(--muted);font-weight:400}.local-notice{border:1px solid var(--border);color:var(--muted);border-radius:.75rem;padding:.75rem 1rem;font-size:.875rem}.intro{padding-block:2.5rem 1.5rem}.eyebrow,.topic{color:var(--muted)}.course,.sentence-card{border:1px solid var(--border);background:#fff;border-radius:1.25rem;margin-bottom:1.5rem;padding:1.5rem}.practice-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin-top:1.5rem;display:flex}.practice-header p{margin:0}.step{margin-top:1rem;font-size:1.5rem}.sentence-text{margin-block:1.5rem}.english{font-size:1.75rem;font-weight:600;line-height:1.4}.reveal{width:100%;margin-block:1rem;display:block}.audio-status{color:var(--muted);margin-top:1rem;margin-bottom:0}.error{color:#913220}.completion{padding-top:3rem}.completion .text-button{margin:1rem auto;display:block}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto}}