:root{color:#2c2928;font-synthesis:none;background:#fff7f2;font-family:Inter,Noto Sans JP,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif}*{box-sizing:border-box}body{background:radial-gradient(circle at 15% 12%,#ffa99442,#0000 32rem),linear-gradient(145deg,#fffaf6 0%,#fff0e8 100%);min-width:320px;min-height:100vh;margin:0}button{font:inherit}.page-shell{place-items:center;min-height:100vh;padding:32px 20px;display:grid}.account-card{background:#ffffffe0;border:1px solid #ecd5cc;border-radius:28px;width:min(100%,560px);padding:clamp(28px,6vw,52px);box-shadow:0 24px 70px #6634221f}.eyebrow{color:#b0442e;letter-spacing:.14em;margin:0 0 10px;font-size:.75rem;font-weight:800}h1{letter-spacing:-.04em;margin:0;font-size:clamp(2rem,8vw,3.4rem);line-height:1.05}.lead{color:#665b57;margin:20px 0 28px;line-height:1.8}.session-panel{background:#fffaf7;border:1px solid #eddbd3;border-radius:18px;min-height:108px;padding:22px}.status-label{color:#7b6b65;margin:0;font-size:.9rem}.display-name{margin:8px 0 0;font-size:1.5rem;font-weight:750}.primary-button,.secondary-button{cursor:pointer;border-radius:14px;width:100%;margin-top:18px;padding:14px 18px;font-weight:750;transition:transform .12s,box-shadow .12s}.primary-button{color:#fff;text-align:center;background:#b94a33;border:1px solid #a83f2b;text-decoration:none;display:block;box-shadow:0 8px 20px #b94a3338}.secondary-button{color:#7d392b;background:#fff;border:1px solid #d7b8ad}.primary-button:hover,.secondary-button:hover{transform:translateY(-1px)}.primary-button:focus-visible,.secondary-button:focus-visible{outline-offset:3px;outline:3px solid #2d6cdf}.primary-button:disabled,.secondary-button:disabled{cursor:wait;opacity:.65}.environment-note,.error-message{color:#786b66;margin:18px 0 0;font-size:.85rem;line-height:1.7}.error-message{color:#9b2c22}[hidden]{display:none!important}@media (width<=480px){.page-shell{align-items:start;padding:16px 12px}.account-card{border-radius:22px;padding:28px 22px}}@media (prefers-reduced-motion:reduce){.primary-button,.secondary-button{transition:none}}