:root{--bg-primary:#0a0a1a;--bg-secondary:#111128;--bg-tertiary:#1a1a2e;--bg-card:#16163299;--bg-glass:#ffffff0a;--bg-glass-hover:#ffffff14;--border-glass:#ffffff14;--border-glass-hover:#ffffff26;--accent-blue:#00d4ff;--accent-purple:#7c3aed;--accent-cyan:#06b6d4;--accent-pink:#ec4899;--accent-green:#10b981;--accent-yellow:#f59e0b;--accent-red:#ef4444;--accent-orange:#f97316;--gradient-primary:linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);--gradient-bg:linear-gradient(135deg, #0a0a1a 0%, #1a1a2e 50%, #0f0f23 100%);--gradient-card:linear-gradient(135deg, #00d4ff0d 0%, #7c3aed0d 100%);--text-primary:#f0f0f8;--text-secondary:#a0a0c0;--text-tertiary:#6b6b8a;--text-accent:#00d4ff;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-full:9999px;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 16px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-glow-blue:0 0 20px 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var(--border-glass);border-radius:var(--radius-full);background:var(--bg-glass);color:var(--text-secondary);font-family:var(--font-family);cursor:pointer;transition:all var(--transition-normal);padding:10px 22px;font-size:.9rem;font-weight:500;display:flex;position:relative;overflow:hidden}.nav-btn:before{content:"";background:var(--gradient-primary);opacity:0;transition:opacity 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.message-bubble{border-top-right-radius:var(--space-xs);background:linear-gradient(135deg,#00d4ff26,#7c3aed26);border:1px solid #00d4ff33}.message.assistant .message-bubble{background:var(--bg-card);border:1px solid var(--border-glass);border-top-left-radius:var(--space-xs)}.message-bubble h1,.message-bubble h2,.message-bubble h3{margin:var(--space-md) 0 var(--space-sm);color:var(--text-primary)}.message-bubble h1{font-size:1.3rem}.message-bubble h2{font-size:1.15rem}.message-bubble h3{font-size:1.05rem}.message-bubble p{margin-bottom:var(--space-sm)}.message-bubble code{color:var(--accent-blue);background:#00d4ff1a;border-radius:4px;padding:2px 6px;font-size:.85em}.message-bubble pre{border:1px solid var(--border-glass);border-radius:var(--radius-sm);padding:var(--space-md);margin:var(--space-sm) 0;background:#0000004d;overflow-x:auto}.message-bubble pre code{color:var(--text-primary);background:0 0;padding:0}.message-bubble ul,.message-bubble 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