:root{color-scheme:dark;--ink:#f5f7f4;--muted:#9ba7a0;--panel:rgba(21,28,25,0.82);--line:rgba(255,255,255,0.1);--green:#b8ff36;--green-deep:#72a700;--red:#ff5e5e;--amber:#ffbd59}*{box-sizing:border-box}html{min-height:100%;background:#080c0a}body{min-height:100vh;margin:0;color:var(--ink);font-family:Inter,Noto Sans JP,Yu Gothic UI,system-ui,sans-serif;background:radial-gradient(circle at 50% 0,rgba(123,180,25,.18),transparent 34rem),linear-gradient(150deg,#111814,#070a08 72%)}button,select{font:inherit}button{-webkit-tap-highlight-color:transparent}.shell{width:min(100%,560px);min-height:100vh;margin:0 auto;padding:56px 22px 40px}.brand-block{margin-bottom:44px}.eyebrow{margin:0 0 8px;color:var(--green);font-size:11px;font-weight:800;letter-spacing:.22em}.brand-block h1{margin:0;font-size:clamp(58px,17vw,92px);line-height:.92;letter-spacing:-.075em}.tagline{margin:18px 0 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