:root{--brand-deep:#032a8d;--brand-primary:#0677be;--brand-accent:#67b9ef;--surface-gradient:linear-gradient(180deg, #f8fbff 0%, #eef4ff 100%);--text-primary:#2e3a4a;--text-muted:#64748b;--text-placeholder:#4f6cae;--bubble-incoming:#fff;--bubble-outgoing:#e3f0fc}*{box-sizing:border-box;margin:0;padding:0}.app{background:var(--surface-gradient);min-height:100dvh;font-family:var(--font-geist-sans), "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;color:var(--text-primary);flex-direction:column;font-size:14.2px;display:flex}.app.app-home{background:var(--surface-gradient)}.app:not(.app-home){height:100dvh;overflow:hidden}.loading-splash{background:radial-gradient(circle at top,#f8fbff 0%,#eef4ff 45%,#e2eeff 100%);flex-direction:column;justify-content:center;align-items:center;gap:.9rem;width:100%;min-height:100dvh;display:flex;position:relative;overflow:hidden}.loading-splash-orb{filter:blur(1px);background:radial-gradient(circle,#0677be3d 0%,#0677be00 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0}.chat-main{width:100%;height:auto;min-height:0;box-shadow:none;background:0 0;border-radius:0;flex:auto;margin:68px 0 0;display:flex;overflow:hidden}.chat-main.chat-main-home{background:0 0}.screen-stack{flex:1;min-height:0;position:relative;overflow:hidden}.screen{will-change:opacity, transform;transition:opacity .3s,transform .36s cubic-bezier(.22,1,.36,1);position:absolute;inset:0}.screen-visible{opacity:1;pointer-events:auto;transform:translate(0)}.screen-hidden-left{opacity:0;pointer-events:none;transform:translate(-24px)}.screen-hidden-right{opacity:0;pointer-events:none;transform:translate(24px)}.landing-content{background:0 0;flex:1;justify-content:center;align-items:center;min-height:100%;padding:2.5rem 1.5rem 3rem;display:flex;position:relative;overflow:hidden}.landing-bg{pointer-events:none;position:absolute;inset:0;overflow:hidden}.landing-orb{filter:blur(1px);border-radius:50%;position:absolute}.landing-orb-primary{background:radial-gradient(circle,#0677be38 0%,#0677be00 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