:root{--bg:#f7f7f5;--paper:#fff;--text:#111;--muted:#6f6f6f;--line:#d9d9d9}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:var(--bg);color:var(--muted);font-optical-sizing:auto;text-transform:lowercase;font-family:Plus Jakarta Sans,sans-serif;font-style:normal;font-weight:400;line-height:1.85}a{color:#59bfff;text-underline-offset:2px;text-decoration-color:#59bfff73}.page{min-height:100vh;padding:24px}.top-nav{justify-content:center;align-items:center;gap:16px;width:min(760px,100%);margin:0 auto 12px;font-size:1.05rem;display:flex}.sheet{background:var(--paper);border:1px solid var(--line);width:min(760px,100%);margin:0 auto;padding:24px 20px}.meta{margin-bottom:24px}.row{grid-template-columns:90px 1fr;gap:12px;display:grid}.label{color:var(--muted)}.body{margin-top:20px}.intro-heading{letter-spacing:-.04em;color:var(--text);margin:0 0 18px;font-size:clamp(2.4rem,5vw,3.6rem);font-weight:600;line-height:1.05}.body p{margin:0 0 18px;font-size:clamp(1.05rem,1.45vw,1.18rem)}.email-capture{flex-wrap:wrap;gap:10px;margin:8px 0 20px;display:flex}.email-input,.email-button{font:inherit}.email-input{border:1px solid var(--line);background:var(--paper);min-height:44px;color:var(--text);border-radius:0;flex:240px;padding:10px 12px}.email-input::placeholder{color:var(--muted)}.email-button{border:1px solid var(--text);background:var(--text);min-height:44px;color:var(--paper);cursor:pointer;border-radius:0;padding:10px 16px}.email-button:disabled{opacity:.72;cursor:wait}.form-message{margin:0 0 20px;font-size:.98rem}.form-message-success{color:#2e7d32}.form-message-error{color:#a94442}.signature-gif{border:1px solid var(--line);width:min(100%,360px);height:auto;margin:12px auto 0;display:block}@media (max-width:640px){.page{padding:12px}.sheet{padding:18px 14px}.row{grid-template-columns:72px 1fr;gap:10px}}