:root{--bg-main: #F8F9FD;--bg-surface: #ffffff;--bg-surface-glass: rgba(255, 255, 255, .82);--bg-sidebar: #ffffff;--bg-sidebar-glass: rgba(255, 255, 255, .92);--border-subtle: #e2e8f0;--border-focus: #c084fc;--text-primary: #0f172a;--text-secondary: #475569;--text-tertiary: #94a3b8;--brand-purple: #9333ea;--brand-violet: #7c3aed;--brand-blue: #2563eb;--brand-cyan: #06b6d4;--brand-pink: #ec4899;--brand-amber: #f59e0b;--brand-emerald: #10b981;--brand-gradient: linear-gradient(135deg, #7c3aed 0%, #a855f7 50%, #38bdf8 100%);--brand-gradient-subtle: rgba(124, 58, 237, .05);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px -2px rgba(0, 0, 0, .06), 0 2px 4px -2px rgba(0, 0, 0, .04);--shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, .08), 0 4px 8px -4px rgba(15, 23, 42, .03);--shadow-dock: 0 20px 40px -10px rgba(124, 58, 237, .08), 0 1px 3px rgba(0, 0, 0, .05);--shadow-glow: 0 0 35px rgba(124, 58, 237, .2);--radius-xs: 6px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-2xl: 32px;--radius-full: 9999px;--sidebar-width: 275px;--sidebar-collapsed-width: 72px}[data-theme=dark]{--bg-main: #090d16;--bg-surface: #111827;--bg-surface-glass: rgba(17, 24, 39, .82);--bg-sidebar: #0e1422;--bg-sidebar-glass: rgba(14, 20, 34, .92);--border-subtle: #1e293b;--border-focus: #a855f7;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-tertiary: #64748b;--brand-gradient-subtle: rgba(168, 85, 247, .12);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 6px 24px -2px rgba(0, 0, 0, .6);--shadow-lg: 0 16px 36px -4px rgba(0, 0, 0, .7);--shadow-dock: 0 20px 40px -10px rgba(0, 0, 0, .7);--shadow-glow: 0 0 45px rgba(168, 85, 247, .3)}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html,body{font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro 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rotate(3deg)}.brand-info{display:flex;flex-direction:column}.brand-name{font-size:16px;font-weight:800;letter-spacing:-.3px;color:var(--text-primary);line-height:1.15}.brand-subtitle{font-size:9.5px;font-weight:800;color:var(--brand-violet);letter-spacing:1px;text-transform:uppercase;margin-top:1px}.sidebar-collapse-trigger{background:transparent;border:none;color:var(--text-tertiary);cursor:pointer;padding:6px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all .15s ease}.sidebar-collapse-trigger:hover{background:var(--brand-gradient-subtle);color:var(--brand-violet)}.sidebar-actions{padding:14px 14px 8px;display:flex;flex-direction:column;gap:8px}.btn-new-chat{display:flex;align-items:center;justify-content:space-between;width:100%;padding:10px 14px;background:#0f172a;color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;font-size:13.5px;cursor:pointer;box-shadow:0 1px 3px #00000014;transition:all .2s 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