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var(--color-border)}.chat-messages{flex:1;overflow-y:auto;padding:var(--space-md);display:flex;flex-direction:column;gap:var(--space-sm)}.chat-quick{display:flex;gap:var(--space-sm);margin-top:var(--space-sm)}.chat-bubble{max-width:85%;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);font-size:var(--fs-sm);line-height:1.5}.chat-bubble>:first-child{margin-top:0}.chat-bubble>:last-child{margin-bottom:0}.chat-user{align-self:flex-end;background:var(--color-primary);color:var(--color-on-primary)}.chat-assistant{align-self:flex-start;background:var(--color-surface-2);color:var(--color-text)}.chat-input-row{display:flex;gap:var(--space-sm);padding:var(--space-sm);border-top:1px solid var(--color-border)}.auth-page{min-height:100dvh;display:grid;place-items:center;padding:var(--space-lg)}.auth-card{width:min(440px,100%)}.auth-card--wide{width:75%}@media(min-width:75em){.auth-card--wide{width:60%}}.auth-card--wide .btn-primary,.auth-card--wide 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