:root{--color-background:#fff;--color-surface:#f3f5f7;--color-border:#e3e7ec;--color-text:#14181d;--color-text-muted:#6b7580;--color-accent:#f5a623;--color-accent-text:#b4650a;--color-success:#2fa84f;--color-caution:#f2c200;--color-red:#e5344e}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--color-background);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:var(--color-accent-text)}.container{max-width:720px;margin:0 auto;padding:0 24px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;padding:24px}.button{background:var(--color-accent);color:var(--color-text);cursor:pointer;border:none;border-radius:8px;padding:12px 24px;font-size:16px;font-weight:600;text-decoration:none;display:inline-block}.button:disabled{opacity:.6;cursor:default}.input{background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text);border-radius:8px;width:100%;padding:12px;font-family:inherit;font-size:16px}footer{border-top:1px solid var(--color-border);color:var(--color-text-muted);margin-top:48px;padding:24px 0;font-size:14px}footer a{margin-right:16px}