body{margin:0}:root{--green:#21a038;--green-dark:#0f8a2c;--green-light:#43c563;--bg:#fff;--bg-alt:#f2f8f3;--card:#fff;--bubble-assistant:#eaf1eb;--ink:#0e2614;--ink-soft:#4c5d52;--line:#0e26141a;--shadow:0 4px 24px #0e26140f;--shadow-hover:0 10px 32px #21a03824;--amber-bg:#fff4e0;--amber-ink:#7a4a00;--red-bg:#fde4e1;--red-ink:#9c2b1c}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg-alt);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-weight:300}h1,h2,h3{margin:0;font-weight:400}.app{background:var(--bg);flex-direction:column;max-width:640px;height:100vh;margin:0 auto;display:flex;position:relative}.header{border-bottom:1px solid var(--line);background:var(--bg);justify-content:space-between;align-items:center;padding:14px 16px;font-weight:400;display:flex}.header-brand{font:inherit;color:inherit;cursor:pointer;background:0 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