:root{color:#183236;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--page-background:#f7f9f8;--surface:#fff;--ink:#183236;--muted:#687d80;--accent:#267b82;--border:#e4eceb;background:#f7f9f8;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html{min-width:320px}body{margin:0}.app-shell{background:var(--page-background);flex-direction:column;min-height:100dvh;display:flex}.app-header{padding:calc(env(safe-area-inset-top) + 18px) max(24px, env(safe-area-inset-right)) 18px max(24px, env(safe-area-inset-left));background:var(--surface);box-shadow:0 1px 0 var(--border);flex:none}.app-header__inner{align-items:center;gap:14px;width:min(100%,640px);margin:0 auto;display:flex}.brand-icon{background:var(--accent);color:#fff;--mark-lines:var(--accent);border-radius:17px;flex:none;place-items:center;width:52px;height:52px;display:grid}.brand-icon svg{width:35px;height:35px}.brand-copy__eyebrow{color:var(--muted);letter-spacing:.055em;text-transform:uppercase;margin-bottom:2px;font-size:12px;font-weight:650;display:block}.brand-copy h1{color:var(--ink);letter-spacing:-.035em;margin:0;font-size:22px;font-weight:720;line-height:1.18}.chat-area{width:min(100%,688px);padding:32px 24px calc(32px + env(safe-area-inset-bottom));flex:1;align-self:center;place-items:center;display:grid}.empty-state{text-align:center;max-width:330px}.empty-state__illustration{width:100px;height:100px;color:var(--accent);--mark-lines:#edf6f5;background:#edf6f5;border:1px solid #dce9e9;border-radius:32px;place-items:center;margin:0 auto 27px;display:grid}.empty-state__illustration svg{width:62px;height:62px}.empty-state h2{color:var(--ink);letter-spacing:-.045em;margin:0 0 10px;font-size:clamp(23px,6vw,29px);font-weight:720;line-height:1.18}.empty-state p{color:var(--muted);margin:0;font-size:16px;line-height:1.5}