:root{--bg-primary: #0B1020;--bg-sidebar: #090B13;--bg-surface: rgba(255, 255, 255, .02);--bg-surface-active: rgba(255, 255, 255, .035);--border-subtle: rgba(255, 255, 255, .05);--accent: #7C6CFF;--accent-glow: rgba(124, 108, 255, .15);--text-primary: rgba(255, 255, 255, .92);--text-secondary: rgba(255, 255, 255, .68);--text-muted: rgba(255, 255, 255, .45);--font-family: "Inter", sans-serif}.app-layout{display:flex;width:100%;min-height:100vh;background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-family);position:relative;overflow:hidden}.sidebar{width:260px;min-width:260px;height:100vh;display:flex;flex-direction:column;background:var(--bg-sidebar);border-right:1px solid var(--border-subtle);padding:24px 16px;justify-content:space-between;transition:width .2s cubic-bezier(.2,0,0,1);overflow:hidden;flex-shrink:0}.sidebar-brand{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-shrink:0}.sidebar-brand-pl-full{height:42px;width:auto;filter:brightness(0) invert(1);object-fit:contain}.sidebar-collapse-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;background:transparent;color:var(--text-muted);cursor:pointer;border-radius:6px;transition:color .15s,background .15s}.sidebar-collapse-btn:hover{color:var(--text-primary);background:var(--bg-surface)}.sidebar-new-chat{width:100%;height:40px;border-radius:12px;border:1px solid var(--border-subtle);background:var(--bg-surface);color:var(--text-primary);display:flex;align-items:center;justify-content:space-between;padding:0 14px;cursor:pointer;margin-bottom:24px;transition:background .15s,border-color 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var(--border-subtle);padding-top:16px;flex-shrink:0;display:flex;flex-direction:column;gap:16px}.user-profile-row{display:flex;align-items:center;gap:12px;cursor:pointer;padding:4px;border-radius:8px;transition:background .15s}.user-profile-row:hover{background:var(--bg-surface)}.user-avatar-circle{width:32px;height:32px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:12px;flex-shrink:0}.user-profile-info{flex:1;display:flex;flex-direction:column;min-width:0;gap:1px}.user-profile-name{font-size:13px;font-weight:600;color:var(--text-primary)}.user-profile-email{font-size:11px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-profile-chevron{color:var(--text-muted);flex-shrink:0}.sidebar-footer-actions{display:flex;align-items:center;justify-content:space-around;background:var(--bg-surface);border-radius:10px;padding:6px;border:1px solid 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