:root{--bg:#f5f7fa;--surface:#fff;--text:#101828;--muted:#667085;--line:#e4e7ec;--primary:#246bfd;--soft:#eaf1ff;--danger:#d92d20;--dark:#101828;--radius:8px;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box;letter-spacing:0}body{margin:0;min-width:320px;background:var(--bg)}button,input,textarea{font:inherit}button{cursor:pointer}.app-shell{min-height:100dvh}.page{padding-bottom:72px}.screen{min-height:calc(100dvh - 64px);max-width:640px;margin:auto;padding:0 16px 96px}.topbar,.home-header{height:56px;display:grid;grid-template-columns:48px 1fr 48px;align-items:center;margin:0 -16px;padding:0 8px;background:var(--surface);border-bottom:1px solid var(--line)}.home-header{display:flex;justify-content:space-between;padding:0 16px}.topbar 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