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hsl(var(--border));border-radius:var(--radius-sm);background:transparent;color:hsl(var(--muted-foreground));font-family:var(--font-sans);font-size:.75rem;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s;white-space:nowrap}.btn-solution:hover{background:hsl(var(--primary) / .1);border-color:hsl(var(--primary) / .5);color:hsl(var(--primary))}.btn-solution-disabled{opacity:.25;cursor:not-allowed;pointer-events:none}#upload-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:80vh;gap:28px;padding:40px 16px}.upload-header{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px}.upload-logo{width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);background:hsl(var(--primary) / .12);color:hsl(var(--primary));margin-bottom:4px}#upload-screen 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